How does DNA determine a trait such as eye color? A. DNA codes for proteins that determine eye color. B. DNA code for mRNA that detemines eye color. C. DNA interacts with proteins to control eye color. D. DNA contains

28,680 results
  1. Science

    How does DNA determine a trait such as eye color? A. DNA codes for proteins that determine eye color. B. DNA code for mRNA that detemines eye color. C. DNA interacts with proteins to control eye color. D. DNA contains pigments which make up eye color. Is

  2. Science HELP PLS

    1. What is a Genetic Mutation? A. the process of decreasing chromosome numbers to half of what the parent cell has B. the copying of DNA to form identical daughter cells C. a permanent change in an organism’s genetic code D. a fusion of egg and sperm

  3. Science

    1. How does a mutation in the DNA affect the way proteins are made? A) a mutation in the DNA results in miss happen tRNA molecules ** B) a mutation in the DNA results in a chance in the mRNA, but it does affect the protein C) a mutation in the DNA affects

  4. Science

    If one rabbit had brown fur and another has black fur, what conclusion can you draw about the rabbits' genetic codes? A. The order of bases in the section of DNA that codes for fur color in the brown rabbit cannot be read by mRNA. B. The genetic code of

  5. biology 4

    one strand of DNA could be as long as a football field if it were stretched out lengthwise. One of the factors allowing DNA to fit inside the nucleus of a cell is its ability to: A. break apart into separate genes B. extend to form very long, thick

  6. Science

    How does a mutation in the DNA affect the way proteins are made? A. A mutation in the DNA results in misshapen tRNA molecules that do not fit inside the ribosomes. B. A mutation in the DNA results in a change in the mRNA and, ultimately, to a different

  7. Biology/Genetics

    Which of the following is a trait? height eye color skin color curly hair My answer is eye color

  8. Science

    1.What is the genetic code? (1 point) The order of amino acids in proteins makes up the genetic code. The order of amino acids in mRNA makes up the genetic code. The order of nitrogen bases in tRNA makes up the genetic code. The order of nitrogen bases in

  9. AP Biology- Molecular Genetics

    The correct sequence between genes and their phenotypic expression is a) RNA-DNA-protein-trait b) DNA-RNA-protein-trait c) Protein-DNA-RNA-trait d) trait-DNA-RNA-protein I think it is either b or d but do not know if the trait is at the beginnig or end...

  10. Biology

    1. Which of the following demonstrates the central dogma of molecular biologists?(1 point) Gene expression relies on environmental factors that determine which traits are dominant. DNA and RNA mutate into either harmful or helpful effects on the human

  11. Science

    The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA replication D)protein copies can be be made directly from the DNA I'm pretty

  12. Biology

    Which of the following statements regarding DNA and RNA is true? DNA can melt while RNA cannot. DNA is resistant to alkaline hydrolysis while RNA is not. DNA contains phosphodiester bonds while RNA does not. DNA can form double helices while RNA cannot.

  13. Biology (check answer)

    Transcription is similar to DNA replication in all of the following ways except: a) the DNA strands unzip b) the polymerase enzyme is involved c) complementary bases are paired up d) a new strand of mRNA is built from the existing DNA molecule is it d?

  14. Science

    What is a gene?(1 point) a section of DNA that encodes a specific protein a point that joins two halves of a chromosome a large molecule that performs a specific function a structure that contains many chromosomes Which structure carries genetic

  15. science

    How does DNA determine a trait such as eye color

  16. Biology

    1. Why must DNA be able to make copies of itself? 2. Define DNA replication? 3. What is the first step that must occur in DNA replication?

  17. Bio/math?

    The DNA in a human cell weighs approximately 2.0 x 10-12 grams. Calculate how many cells you would need to use to isolate 1 mg (milligram or 1x10-3 grams) of DNA, assuming you can get all the DNA out of a cell. I honestly don't know how to start and solve

  18. Science

    How does dna determine a trait such as eye color

  19. Science

    Can someone tell me if I answered my question correctly? During the cell cycle when does DNA replication take place? During interphase and the DNA synthesis separates the eukaryotic cells into four phases. Gap 1 phase is the intervals between mitosis and

  20. forensic

    Select the proper order of examination "Fingerprints, trace evidence, DNA" "Disease diagnosis, DNA, fingerprints" "Ink analysis, content analysis, DNA" "Handwriting, ink analysis, DNA" None of the above my answer is the first one

  21. Science

    How does DNA determine a trait that determines eye color? 1)DNA codes for proteins that determine eye color. 2)DNA codes for mRSA that determines eye color. 3)DNA interacts with proteins to control eye color. 4) DNA contains pigments which make up eye

  22. biology

    Which of the following can result from a DNA mutation? (Select all that apply.) The DNA base-pairing rules change. The genetic information is changed. The structure and function of the proteins coded by the DNA change. A different version of the DNA

  23. Biology

    16. During DNA replication, all of the following steps occur EXCEPT a. enzymes proofread new strands for errors and correct them b. the double helix is unwound by DNA polymerases c. base-pairing rules determine which nucleotide is added to new strands d.

  24. Science

    How does dna determine a trait such as eye color

  25. Biology

    14. The major components of a DNA molecular subunit are a. a chromosome, deoxyribose, and double helix b. a five-carbon sugar, phosphate group, and a nitrogen-containing base c. adenine, guanine, cytosine, and thymine d. all of the above D? 16. During DNA

  26. biology check answers please

    The Hershey-Chase experiment proved that DNA was the hereditary material because. a) radioactive phosphorus in viral proteins was shown not to enter bacterial cells b) radioactive phosphorus in viral DNA was shown to enter bacterial cells **** (my choice)

  27. Biology

    Kay so these are the strands of DNA 5' C C A G T A G T T 3' 3' G G T C A T C A A 5' Let's say the DNA molecule above were the parent strand of DNA. when the strands are split for replication, which strand would be the template for the leading strand? And

  28. Physics

    Stretching DNA. With its double-helix structure, DNA is coiled like a spring. A biophysicist grabs the ends of a DNA strand with optical tweezers and stretches it 26µm producing 1.2pN- tension in the strand. What's the DNA's spring constant?

  29. bio please help Ms sue

    DNA is copied by an enzyme called DNA (A) __________, and the process of copying DNA is called (B) __________. The two new double-stranded DNA molecules have one strand from the original DNA molecule and one strand from the freshly assembled strand of

  30. Psychology

    Which of the following statements describes the relationship between genes, chromosomes, and DNA? a. Genes, the basic unit of heredity, are located on chromosomes, which consist of strands of DNA b. Genes are composed of and DNA c. Chromosomes, the basic

  31. cellbio

    Griffith's experiments along with Avery, MacLeod and McCarty helped to determine the transforming factors of Pneumococcus bacteria. Using heat-killed S-strain bacteria and one particular fraction of the cell lysates, they were able to demonstrate that

  32. Science

    How does a mutation in the DNA affect the way proteins are made? A. A mutation in the DNA results in misshapen tRNA molecules that do not fit inside the ribosomes. B. A mutation in the DNA results in a change in the mRNA and, ultimately, to a different

  33. Bio...DNA

    Can anyone explain the relationship between the structure of DNA , protein structure and phenotype of an organism? Also, what is the role of DNA in protein synthesis? I will give you a little hint. The DNA makes the RNA. The RNA makes the proteins by amino

  34. Bio Midterm

    Which of the following pairs does not fit the pattern shown by the other pairs. A. amino acids, proteins B. fatty acids, DNA C. glucose, starch** D. ribonucleotide, DNA My answer is C, is that correct?

  35. genetics

    What is a replication bubble? A.A complex of replication enzymes on the DNA template strand B.A DNA sequence that initiates replication C.A tangle of denatured DNA strands near the replication fork D.A locally denatured segment of DNA where replication

  36. Scientists PCR

    Scientists use polymerase chain reaction (PCR) to amplify a segment of DNA into many copies. to insert new nucleotide segments into a plasmid. to make a complementary strand of DNA. to link together multiple fragments of DNA WHICH ONE WOULD YOU PICK AND

  37. Biology

    1. How many base pairs are in a full turn or twist of a DNA molecule? 2. Name the complementary base pairs on DNA. A-T; G-C are the pairs, you name them. there are 10 1/2 base pairs for a full twist in DNA How does the nucleotide sequence in one chain of

  38. Genes

    Which one of the following statements describes the relationship between genes, chromosomes and DNA a) genes, the basic unit of heredity, are located on chromosomes, which consist of strands of DNA b) genes are composed of chromosome and DNA C) chromosomes

  39. psychology

    Which one of the following statements describes the relationship between genes, chromosomes, and DNA? a. Genes, the basic unit of heredity, are located on chromosomes, which consist of strands of DNA.b. Genes are composed of chromosomes and DNA. c.

  40. science

    Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A, am I right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the

  41. Science Question

    Griffith's experiments along with Avery, MacLeod and McCarty helped to determine the transforming factors of Pneumococcus bacteria. Using heat-killed S-strain bacteria and one particular fraction of the cell lysates, they were able to demonstrate that

  42. science

    Which of the following demonstrates the central dogma of molecular biologists?(1 point) DNA and RNA mutate into either harmful or helpful effects on the human body. DNA and RNA hold the code to create proteins that are the key to gene expression. Gene

  43. biology

    In evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following provides the most convincing support for this hypothesis? a. there are more types of RNA than there are of DNA b. RNA can both store genetic information and act

  44. science

    In evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following provides the most convincing support for this hypothesis? a. there are more types of RNA than there are of DNA b. RNA can both store genetic information and act

  45. Biology Please help

    There are several genes that control eye color; eye color is therefore called a (A) Polygenic trait. Besides genes that directly control eye color, there are other genes that can affect the color of your eyes. For example, your eye color genes may code for

  46. science/biology

    Read the scenario. A graduate student is running a PCR reaction to study DNA extracted from an Egyptian mummy. The reaction does not seem to be working, so he checks his notes to see what he added to the reaction mix. He find the following list: mummy DNA,

  47. bio

    Supercoiling of DNA can occur (choose all that apply): A. when double stranded DNA is overwound B. when double stranded DNA is underwound C. when double stranded DNA is heated above it's Tm D. when DNA is treated with nucleases and Generally, cellular DNA

  48. Science

    what does DNA stand for? What is a gene? Where in the cell are chromosomes located? what two scientists established the structure of DNA? DNA is sometimes descrived as twisted ladder. What is this shape called? What forms the backbone of DNA? What forms

  49. science

    1.The trait for green eyes is dominant (Y) to brown eyes which are recessive (y). Determine the eye color a child will have with a Yy genotype: ☐Blue Eyes ☐ Green Eyes ☐ Hazel Eyes ☐ Brown Eyes 2. A bird that is heterozygous for the yellow feather

  50. Biology

    14. The major components of a DNA molecular subunit are a. a chromosome, deoxyribose, and double helix b. a five-carbon sugar, phosphate group, and a nitrogen-containing base c. adenine, guanine, cytosine, and thymine d. all of the above D 16. During DNA

  51. English

    What is a gene?(1 point) a section of DNA that encodes a specific protein a point that joins two halves of a chromosome a large molecule that performs a specific function a structure that contains many chromosomes Which structure carries genetic

  52. Biology

    recombinant DNA involves 1) changing the dna, 2) cloning sperm cells, 3) transferring plasmids from one bacterium to another 4) transferring dna from one virus to another

  53. psychology

    Which one of the following statements describe the relationship between genes,chormosomes and DNA? A genes,the basic unit of heredity,are located on chromosomes,which consist of strands of DNA B genes are composed of chromosomes and Dna C chromosomes,tha

  54. Biology

    I need some help with these questions. I've chosen answers, but I want to make sure if they are correct. 1)Which of the following is an acidic pH? 6 7 8 800 A: 6 None of the above ------------------------------------- 2) Which of the following is directly

  55. Biology

    For the DNA sequence given below, write the complementary DNA sequence that would compliment the double-strand DNA 3'--ATTGCTTACTTGCATGGTACCTCTAGCGTTTAGGC--5'

  56. Science-important!

    Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A or B. A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis

  57. Biology

    Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A, am I right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the

  58. Biology-Is my answer correct

    Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A, am I right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the

  59. Science

    mismatch error to be repaired? Which is the best answer, I think it's A. Can someone who know's science tell me if I am right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the

  60. science

    Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A or B. A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis

  61. Biochem

    Griffith's experiments along with Avery, MacLeod and McCarty helped to determine the transforming factors of Pneumococcus bacteria. Using heat-killed S-strain bacteria and one particular fraction of the cell lysates, they were able to demonstrate that

  62. Science

    RNA is thought to have proceeded proteins and DNA, why? A. more types of RNA than DNA B. single stranded RNA is less complex than DNA Not sure if either are correct?

  63. Science

    Why must chromosomes be duplicated before mitosis? DNA is the instruction of making proteins.To have a new cell that can work, it must has a replication of DNA.

  64. Bio

    How to I determine the sequence of amino acid assembled when given the following +DNA code: CCA, AGT ? I'm asked to give the :-DNA, mRNA, tRNA codes, and also the amino acid. If I'm not mistaken I know that I must replace "T" thymine for "U" uracil.

  65. biology

    In evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following provides the most convincing support for this hypothesis? a. there are more types of RNA than there are of DNA b. RNA can both store genetic information and act

  66. biology

    In evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following provides the most convincing support for this hypothesis? a. there are more types of RNA than there are of DNA b. RNA can both store genetic information and act

  67. Biology

    Which nucleic acid statement is true A. mRNA codes for DNA B. mRNA codes for proteins C. tRNA makes amino acids D. tRNA makes lipids I think B

  68. Biology

    In the final step of DNA extraction from E. Coli bacteria, we used ethanol so that the DNA would precipitate. Why is it that DNA precipitates in ethanol, and not in water? Both of them are polar solvents, and so is DNA. So why doesn't water make DNA

  69. science please help

    in evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following observations provides the most convincing support for hypothesis? a) there are more types of RNA than there are DNA b) RNA contains combined catalytic,

  70. Science

    I did your corrections. I just wanted to know if all the sentences are correct from a scientific point of view. Thank you. 1) DNA contains instructions which decide which proteins a cell will make and consequently determines the whole chemistry of the

  71. English

    I'd like you to check these sentences grammatically. I also would like you to see if the terminology I used is correct. Help me improve my paragraph, please. 1)DNA contains instructions which decide which proteins a cell will make and consequently

  72. genetics

    Though this question sucks, which enzyme elongates the new DNA strand starting at an RNA primer? A.DNA polymerase I B.DNA polymerase III C.DNA polymerase II D.DNA ligase E.RNA polymerase

  73. bio

    Supercoiling of DNA can occur (choose all that apply): A. when double stranded DNA is overwound B. when double stranded DNA is underwound C. when double stranded DNA is heated above it's Tm D. when DNA is treated with nucleases and Generally, cellular DNA

  74. biology 9th grade

    Plzzzz help which of the following are correct about DNA fingerprinting choose all correct answers A. DNA fingerprint and actual fingerprints are the same*** B. They can determine paternity (who's the baby daddy?) C. They can be used to identify organisms

  75. genetics

    DNA markers, or variant non-coding regions of DNA, are DNA polymorphisms that are useful for genetic mapping. True False

  76. Biology

    In DNA fingerprinting, the DNA probe that is used is ______to the DNA sequence of the repeats in the sample? im guessing amplify????

  77. Science

    In DNA fingerprinting, the DNA probe that is used is ______to the DNA sequence of the repeats in the sample? im guessing amplify????

  78. science-important!

    I really need to make sure this is correct for tommorow please help! The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA

  79. science-important!

    I really need to make sure this is correct for tommorow please help! The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA

  80. science

    There are about 300,000,000 US citizens. If we wanted to assign each person a unique identifier, using DNA sequences, how long a DNA sequence would we need? (Here’s another way of phrasing the question: How many bases of DNA are required for there to be

  81. Bio

    if you knew makeup of a specific proteins in a cell , how would you determine the particular dna code that coded for them

  82. Science Question for Lance

    Histones interact with DNA at specific loci because DNA has phosphate functional groups. This interaction occurs because histones have a net _____ positive charge, which derives from their ______ residues, and interact with DNA because of its net _______

  83. Biology

    Differentiating the affects of environment vs the affects of DNA and how they affect "who we are" is often quite difficult. Other than 'Twin Studies' do you have any suggestions of how we can study which one - environment or DNA affects each trait more?

  84. Chemistry-Just checking my answer

    For each template DNA, I prepared a second PCR reaction that includes "GMO" primers. Assume that all three foods had usable plant DNA. Which template DNA (non-GMO,GMO,test food) would you expect to show successful amplification of the "GMO" target

  85. Biology

    If bird DNA is more similar to crocodile DNA than turtle DNA is to crocodile DNA, then... A)birds should be included amoung reptiles B)turtles and birds should be excluded from the reptiles C)the reptiles should be replaced by several new classes D)each of

  86. sci 230

    The DNA creates new proteins but once the proteins are created, can they work by themselves

  87. psychology

    Which one of the following statements describe the relationship between genes,chormosomes and DNA? A genes,the basic unit of heredity,are located on chromosomes,which consist of strands of DNA B genes are composed of chromosomes and Dna C chromosomes,tha

  88. how do protons move during electrophoresis

    During electrophoresis, protons move in the same direction as DNA. do not move at all. move in the opposite direction as DNA. move randomly. I am thinking they move in the same direction as DNA or am I wrong? DNA travels in accordance with its principal

  89. biology

    How is a cow protein different than a human protein? How is cow DNA physically different from human DNA? Remember all proteins are made up of amino acids

  90. biology

    i have some notes but before christmas break was here i had surgery so i didn't get to finish my notes in class and i don't understand much of my work so heres part of my notes: DNA and RNA Differences: #of strands for DNA? RNA? sugar DNA? RNA? Base that

  91. Science

    I answered the questions, but I don't know if my choices are right. 1) Which of the following is an acidic pH? 6 7 8 800 None of the Above Answer: 6 ------------------------------------- 2) Which of the following is directly produced by photosynthesis?

  92. Genetics

    A viral DNA is analyzed and found to have the following base composition, in mole percent: A = 32, G = 16, T = 40, C = 12. What can you immediately conclude about this DNA? a stretch of double stranded DNA contains 1000 base pairs and its base composition

  93. genetics

    DNA is often purified by DNA electrophoresis, like in old-school DNA sequencing. In DNA electrophoresis, fragment separation is based on _____. (Best answer) A.fragment charge. B.fragment size. C.fragment sequence. D.fragment G-C content. E. fragment A-T

  94. biology

    Read the scenario. Loretta has a sample that contains a mixture of different DNA molecules. She would like to separate them by size to help her determine the length of each molecule. Which technique should she use? A- PCR B- Gel electrophoresis C- DNA

  95. Experiment+ bio

    In the 1950s the heavy isotope of nitrogen (15N) and an ultracentrifuge were used in an experiment to investigate the manner in which DNA replicates. Bacteria were grown in a culture containing 15N nucleotides for several generations to ensure that only

  96. Biology

    Hormones are _____? a) produced only in response to environmental stress b) are all under the control of the pituitary gland c) signals that must interact with DNA in order to be effective d) always proteins I feel like it is b) because hormone receptors

  97. Biology

    Hormones are _____? a) produced only in response to environmental stress b) are all under the control of the pituitary gland c) signals that must interact with DNA in order to be effective d) always proteins I feel like it is b) because hormone receptors

  98. Biology

    The polymerase chain reaction (PCR) is useful for: A) making many copies of a small amount of DNA B) creating recombinant plasmids C) analyzing a person’s fingerprints D) cutting DNA into many small pieces E) allowing restriction enzymes to cut DNA at

  99. biology

    How is recombinant DNA technology used today? I have to use bacterial chromosomal or genomic DNA,plasmid,restriction enzyme, vector, sticky end, transformation, DNA ligase, gene cloning,restriction fragment, and restriction site in the answer.

  100. Biology

    6. The gene for a large single eyeball is coded by the gene sequence TTCGCTGAA. Let’s go through transcription… DNA Strand- T-T-C-G-C-T-G-A-A mRNA Strand- _____________________________ 7. Now, let’s look at the gene for green body color, which is

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