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August 29, 2014

Search: DNA &RNA

Number of results: 825

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 binds with Adenine DNA...
December 31, 2007 by alex

DNA &RNA
State two differences between DNA and RNA. we did not study this at all, so far I see that DNA has several million nucleotides, the smaller RNA only has several thousand of them. the second thing I noticed is that they both have a base,a five carbon sugar and a phosphate group...
February 26, 2009 by sport

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... Once translated, the ...
March 14, 2011 by Jill

Biochemistry
Just need help. Question: One strand of DNA is completely transcribed into RNA by RNA polymerase. The base composition of the DNA template strand is: G =20%. C=25%, A=15%, and T=40%. What would you expect the composition of the newly synthesized RNA to be?
October 2, 2009 by James

Biology
17. When errors in nucleotide sequencing occur, a. DNA polymerases replaces the incorrect nucleotide with the correct nucleotide b. enzymes dissolve the incorrect nucleotide so DNA polymerase can add the correct one c. purines replace pyrimidines in the DNA molecule d. DNA ...
February 8, 2010 by mysterychicken

Biology
17. When errors in nucleotide sequencing occur, a. DNA polymerases replaces the incorrect nucleotide with the correct nucleotide b. enzymes dissolve the incorrect nucleotide so DNA polymerase can add the correct one c. purines replace pyrimidines in the DNA molecule d. DNA ...
February 8, 2010 by mysterychicken

Biology
Using RNA a s a template for prot e in synthesis instead of t r ans l a t ing prot e ins directly from the DNA is advantageous for the cell because A) RNA is much more stable than DNA. B) RNA acts as an expendable copy of the genetic material, allowing the DNA to serve as a ...
December 11, 2011 by Matthew

Chemistry
since nucleic acis have charged phosphate groups, DNA and RNA contain lots of negative charges. Would you suspect that DNA and RNA are soluble in polar solvent like water?
May 5, 2009 by Heather

biology
1.How many strands of mRNA are transcribed from the two "unzipped" strandsof DNA? 2.What are the three parts of an RNA nucleotide? 3.How does base pairing differ in RNA and DNA? 4.What is the function of mRNA? 5. What is a codon?
December 31, 2007 by alex

intro chemistry college
State two differences between DNA and RNA. we did not study this at all, so far I see that DNA has several million nucleotides, the smaller RNA only has several thousand of them. the second thing I noticed is that they both have a base,a five carbon sugar and a phosphate group...
February 26, 2009 by sport

Anatomy + Physiology
What are the building blocks for nucleic acids DNA and RNA? DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are polymers of nucleotides linked in a chain through phosphodiester bonds. In biological systems, they serve as information-carrying molecules or, in the case of...
November 7, 2006 by AJ

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 acid building blocks...
May 20, 2007 by Pet

Genetics
Given the sequence of bases in the sense strand of DNA shown below, please answer the following questions. 5'-ATGTTTCCCCAGAAGAGGTATGGGAAAAAGATTTGA-3' a. Show the sequence of bases in the messenger RNA encoded by this gene. I'm not sure what this means. I looked up "sense ...
November 4, 2009 by Jenna

Biology
sorry a few more questions why can DNA form fibres that allow it to seprate from RNA while RNA cant form such fibres? also, when treated with DNAse, I know DNA viscosity reduces because its cut up into smaller pieces. but on a graph of viscosity vs time, I have this ...
April 9, 2008 by Steven

Biology
http://talk.collegeconfidential.com/showthread.php?p=4515174 Imagine you had made an RNA copy of each strand of a DNA double helix. If you were now to mix these two RNA single-strand copies together, do you think they would form a double-stranded RNA molecule? Why do you ...
August 5, 2007 by bobpursley

Bio
of the following, the best conclusion concerning the difference between the S phases for beta and gamma is that: a. gamma contains more DNA than beta b. beta and gamma contains the same amout of DNA c. beta contains more RNA than gamma d. gamma contains 48 times more DNA and ...
October 24, 2007 by Awalmeer

Anthropolgy
If one strand of DNA has a nucleotide base sequence of TCAGGTCCATAT, What is its complement base sequence? If the above is the DNA template strand, what is the corresponding RNA nucleotide base sequence? How many amino acids are coded for on the segment of RNA?
May 26, 2008 by Ted

Biology
I need help with DNA conversion. First of all, I needed to convert this DNA sequence into its RNA equivalent. 5'-TACTTCTTCAAGACT-3' After the conversion, I came up with this.. 3'-AUGAAGAAGUUCUGA-5'. Is this correct? Then I need to take the converted sequence, and once again ...
April 10, 2009 by Marsha

Biology
Convert the following DNA sequence into its RNA equivalent and then using the genetic code, convert that RNA sequence into the amino acid sequence. 5’–TACTTCTTCAAGACT-3’ For this above DNA sequence, what information is contained in the genetic code for the first and last...
April 13, 2009 by Sherri

biology
1. What are the three parts that make up a nucleotide? 2. What is the sugar found in DNA? 3. What are the four different bases found in DNA nucleotides? 4. What two parts make up the sides of the DNA ladder? 5. What holds the sugars and the phosphates together? 6. What ...
February 24, 2008 by Anonymous

Biology
8. Where is RNA formed? 9. Write out the pairings from DNA to RNA. 10. Where is RNA formed? To where does it travel? 11. What is the difference between mRNA and tRNA? 12. What are three bases of mRNA called? At what organelle are they read? 13. What is the purpose for mRNA? ...
January 29, 2008 by Tiffany

Biology
Where in the cell does DNA become RNA?
January 15, 2008 by Katie..

science
what is the number of strands in dna and rna?
February 24, 2009 by Tammy

Science
what is the difference between RNA and DNA?
January 24, 2010 by Lynn

Biology
Why DNA is more stable than RNA?
January 12, 2013 by Mengistu

biology
why are RNA viruses much more deadly than DNA viruses? Thank you for using the Jiskha Homework Help Forum. Biology is out of my field but here are some links on RNA & DNA viruses: 1. http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/V/Viruses.html 2. http://en.wikipedia....
March 20, 2007 by help me please!!!

biology
what are the advantages of beginning with RNA versus DNA?
September 8, 2010 by Gordon

Biology
do mutations occur in DNA or RNA? Explain
December 18, 2012 by Cam

biology
in what aspects are DNA and RNA polymerases similar?
November 29, 2013 by Anonymous

Science
What is in RNA, but not in DNA? a.) thymine b.) thyroid c.) adenine d.) uracil
September 20, 2007 by Brittany

Chemistry
State two differences between DNA and RNA.
February 22, 2009 by Laura

chemistry
If I isolated a strand of nucleotides, how could I determine if they were DNA or RNA?
July 14, 2011 by ana

Biology
Mention the role of DNA and RNA in living organisms?
July 4, 2014 by Harsh

science
wehat is the difference between RNA and DNA that allows them to be separated?
April 9, 2008 by allie

science
What is the difference between RNA and DNA that can be used to separate them from one another?
April 9, 2008 by jonathan

biochemistry
pls help! discuss the effect of acids and alkalis on DNA & RNA. Thanks.
February 6, 2011 by victor

biology
explain why the synthesis of proteins, DNA and RNA requires energy. thanks :)
September 21, 2011 by grace

science
if a DNA virus infects a cell, why must it produce RNA?
December 2, 2012 by robbie

science
Which molecule contains ribose has its sugar? where in the cell does DNA become RNA?
January 15, 2008 by Kristen

AP Biology
the process of making a complimentary copy of the DNA to form RNA is called?
February 23, 2011 by unknown

science
19. The term chromatin refers to a. the color of certain cells b. chromosomal DNA c. the fluid within the nucleus d. ribosomal RNA
January 28, 2013 by erica

DNA
I have to build a DNA and RNA structure. It must stand on its own. What materials would you suggest i use? Thank you. http://biology.about.com/c/ht/00/07/How_DNA_Model_Candy0962932481.htm
November 5, 2006 by Amanda

science
Lipids: Not a polymer because _ __x's energy than carbs Saturated= Unsaturated= Nucleic Acids: RNA= DNA= Carbohydrates: Building blockks
January 26, 2013 by Katie

help please on this
Making a vaccine for HIV is difficult because the virus has a rapid rate of (A)__________. This is because it is a(n) (B)________ - its genetic material is RNA instead of DNA.
May 21, 2014 by john

Biology
What is the basic unit of information in a DNA molecule? In an RNA molecule? In a polypeptide?
March 14, 2014 by Anonymous

Science
RNA is to U(Uracil) as DNA is to ? a. Cytosine (don't think so) b. Guanine (don't think so) c. Thymine d. Adenine
January 24, 2014 by David

AP Biology
compare and contrast the mode of reproduction of a DNA virus with that of a typical RNA virus (retrovirus).
March 18, 2010 by sheer

science
Lisof a strand of the base sequence of a strand of RNA made using the DNA pattern ATCCGTC. Can you please help me
February 24, 2009 by Gaby

biology
Indentify what category (protein, carbohydrate, or lipid) each of the following is: hemoglobin, ligaments, RNA, DNA, muscle fibers, cholesterol I thought RNA and DNA were nuecleotides.. but who knows? Thanks in advance. If those are the only 3 possible answers, then your ...
September 27, 2006 by Natalia

Biology
Which of the following is not a terminal electron acceptor in anaerobic respirations? a)nitrite b)carbon dioxide c)hydrogen sulfide d)sulfate e)nitrate Question 2 Which of the following is not an end product of fermentation? a)pyruvate b)none of the answers are correct c)...
September 10, 2010 by Tommy

Biology
5. Dideoxynucleosides are employed in the course of the Sanger process of DNA sequencing. Dideocynucleosides are used because a) They stop the synthesis of DNA strands b) They are fluoresce c) They are radioactive d) They move quicly during gel electrophoresis e) They ...
May 8, 2014 by Deepa

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 precipitate?
November 11, 2008 by Christiaan

Biololgy
Genetic engineering a. Allows the use of bacteria as production factories for a number of molecules b. Relies of recombinant DNA technology c. Is dependent on RNA enzymes d.Relies completely on conjugation e. a and b
June 21, 2008 by Mecia

PLEASE HELP ASAP..thanks..BIOLOGY
Where in the cell does DNA become RNA? Which larger a chromosome or a nucleotide. Which is larger, a chromosome or a nucleus?
January 15, 2008 by katie

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 of the correct DNA ...
November 20, 2011 by jake

Chemistry
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?
March 30, 2010 by Marlene

chem
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?
April 7, 2010 by Anonymous

CHEMISTRY
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?
August 19, 2011 by ken

chemistry
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?
February 17, 2012 by Jenn

science
what is the unity of life? if asked to explain two examples could it be a human and a chimp or would the two examples be DNA and RNA?
January 16, 2013 by annie

Biology
Amino acid is to protein as A. fat is to lipid B. DNA is to RNA C. sugar is to fat D. simple sugar is to cellulose I think it is A..?
August 28, 2013 by Cassie

biology
In the search to discover the agents that caused mad cow disease, scrapie in sheep, and CJD and kuru in humans, the diseased brain tissues were filtered and still found to be infective, indicating they are not bacteria but either viruses or chemical molecules. If it was a ...
October 11, 2008 by Brooke

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 of the correct DNA ...
November 21, 2011 by jake

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 synthesis of the ...
November 21, 2011 by jake

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 synthesis of the ...
November 21, 2011 by jake

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 synthesis of the ...
November 21, 2011 by jake

AP Biology
Describe the production and processing of a protein that will be exported from a eukaryotic cell. Begin with the separation of the messenger RNA from the DNA template and end with the release of the protein at the plasma membrane. -in essay format not points please-
March 24, 2010 by sheer

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 is: A. Slightly ...
April 4, 2011 by Yoo

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 is: A. Slightly ...
April 4, 2011 by Yoo

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 sure the answer is D, ...
November 19, 2011 by jake

Biology
How is information stored and coded in DNA and genes? A. In sets of three nucleotides called codons B. In amino acids that are bonded together to form proteins C. as mRNA, tRNA, and rRNA D. By an RNA polymerase I am stuck between A and B, but am pretty confident on A as the ...
March 26, 2009 by Rachale

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 26m producing 1.2pN- tension in the strand. What's the DNA's spring constant?
October 12, 2011 by Eman

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 synthesis of the ...
November 21, 2011 by jake

DNA
Do the two DNA double helices following DNA replication have the same, or a different, composition?
April 23, 2014 by Dee Anna

Biology
In DNA fingerprinting, the DNA probe that is used is ______to the DNA sequence of the repeats in the sample? im guessing amplify????
November 12, 2013 by vickie

Science
In DNA fingerprinting, the DNA probe that is used is ______to the DNA sequence of the repeats in the sample? im guessing amplify????
November 12, 2013 by vickie

chemistry urgent urgent
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?
January 15, 2013 by zachary

Recombinant DNA
When you digest Vibrio DNA with Sal1, wh do you get mostly large DNA fragments?
July 11, 2010 by Kim

Science
HIV is a retrovirus. Which of the following processes does it use to synthesize a DNA strand using its own RNA genome as a template? *reverse translation *reverse transcription-------- *translation *transcription
February 16, 2014 by Kia

Biology/DNA
When doing a DNA extraction, what advantages does a TE buffer provide to DNA that water cannot?
October 20, 2010 by Natalie

Biology- DNA
What is needed to synthesize DNA? -a DNA strand -a primer and is that it?
February 7, 2011 by Allie

biochemistry: Protein Synthesis
1. Assume that a particular microorganism has 50 distinct t-rna molecules, and that it has 100 copies of each type of t-rna. Further assume that average number of nucleotides in each t-rna is 80. What is the energy cost, expressed as number of phosphoric anhydride bonds ...
October 23, 2007 by mae

AP Biology
1.Oparin and Haldane hypothesized that the Earth's early atmosphere was strongly (2 points) acidic. oxidizing. reducing. ~~ ionic. 2.The most significant outcome of the Miller and Urey experiments was that they (2 points) synthesized living cells from nonliving matter. ...
September 12, 2012 by henry

Computers
Hi, I have an IT programming question but I'm not sure what the question means exactly. Question: Make an immutable class to represent DNA and RNA, these classes must wrap around a mutable character array the contents of which is used to set the state of these objects during ...
February 18, 2010 by Vanessa

BIOLOGY
Is DNA found in the nucleus, cytoplasm, or both? Is RNA found in the nucleus, cytosplasm, or both?
June 1, 2008 by Jason

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 the rungs of the ladder...
March 3, 2011 by brxce

science- DNA
Of all possible DNA nucleotide sequences, what sequence of base pairs would dissociate most easily into single strands if the DNA duplex were heated gently?
August 16, 2007 by manny

biology pleaseehelp!
In order to produce many copies of a protein fast, the cell uses A. DNA replication. B. intron self-splicing. C. single-unit ribosomes for high speed translation. D. codon-anticodon reciprocal duplication. E. many RNA polymerase molecules to produce mRNA transcripts at the ...
May 13, 2011 by sabrina

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 nucleotides. This is ...
May 26, 2014 by carrie

Biology
I am doing a chart on function and structure and i am stumped by this question Modified cell products must arrive to specific docking siteswhere they are necessary What structure tells the vacuole to dock where it needs to? - Would this be the nucleus, the nucleus has the ...
October 11, 2007 by Bongo

Biology
23. A medical condition that can be treated by using proteins produced through genetic engineering is a. depression b. multiple sclerosis c. hemophilia d. all of the above 26. Endosymbiosis best explains the possible evolutionary beginnings of a. prokaryotes b. cyanobacteria c...
February 8, 2010 by mysterychicken

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 DNA compare with the ...
January 9, 2007 by Becky

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? (Heres another way of phrasing the question: How many bases of DNA are required for there to be at least 300 million ...
September 28, 2011 by Ellen

Biology
For the DNA sequence given below, write the complementary DNA sequence that would compliment the double-strand DNA 3'--ATTGCTTACTTGCATGGTACCTCTAGCGTTTAGGC--5'
March 22, 2014 by Danielle

ap biology
The first step in making a protein is transcription of a gene. This occurs in the 1._______of a eukaryotic cell. An enzyme called 2.______ carrres out the process of transcribing RNA from the DNA. It starts at a specific nucleotide sequence called a 3.______ next to the gene. ...
January 4, 2012 by Cici

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 basic unit of heredity...
September 16, 2009 by 888

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 basic unit of heredity...
September 16, 2009 by VEDRANA

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 unit of heredity, ...
October 3, 2011 by bj

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 replication D)protein copies ...
November 19, 2011 by jake

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 replication D)protein copies ...
November 19, 2011 by jake

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