Monday
August 3, 2015

Homework Help: Science: Biology

Recent Homework Questions About Biology

Biology
What is the phenotype ratio for TTyy X TtYy? Is it 8:8 for tall + yellow to tall + green?
Sunday, March 22, 2015 by Anonymous

Biology
For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d) increase surface area of ...
Sunday, March 22, 2015 by Ryan

Biology
What does b-mercaptoethanol do to secretory proteins?If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?
Sunday, March 22, 2015 by Ryan

Biology
In anaphase of mitosis, the sister chromatids are separated and pulled to the poles. How do these chromatids, which are only half of a duplicated chromosome, become chromosomes? As I understand it, mitosis produces daughter cells that are identical to the parent cells.
Sunday, March 22, 2015 by Anonymous

Biology
What does b-mercaptoethanol do to secretory proteins?also...If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?
Sunday, March 22, 2015 by Ryan

Biology
3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d) increase surface area ...
Sunday, March 22, 2015 by Ryan

Biology
What does b-mercaptoethanol do to secretory proteins?also...If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?
Sunday, March 22, 2015 by Ryan

Biology
3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d) increase surface area ...
Sunday, March 22, 2015 by Ryan

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 produced by ...
Friday, March 20, 2015 by Krista

Biology
What does b-mercaptoethanol do to secretory proteins?
Friday, March 20, 2015 by Ryan

Biology
3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d) increase surface area ...
Friday, March 20, 2015 by Ryan

biology
it is not known if a tall pea plant is homozygous or heterozygous (a hybrid). you decide to do a test cross to find out. if there are 40 offspring and 7 out of them are short, what is the genotype of the unknown pea plant? draw a punnett square that represents this cross. ...
Thursday, March 19, 2015 by amy

biology/ chemistry
how do electrolytes affect the formation of micelles?
Tuesday, March 17, 2015 by pan

biology
Hello, I am having trouble with a question on my homework. Even after reading through my notes and textbook I am still not sure what the answer is. I think the answer is the new paramecium is able to reproduce sexually and asexually.Here is the question: After sexual ...
Sunday, March 15, 2015 by Jordan

biology
Hi, This is a question on my biology test review that I don't understand. I think the answer is pine trees, but I'm not really sure. Please help! In a barren terrestrial habitat, which of the following would be an example of a pioneer organism? moss pine trees ...
Saturday, March 14, 2015 by Kaden

biology
how do you calculate dna base pair percentages
Thursday, March 12, 2015 by Zoi

biology
if a fruit fly has 28.8% Adenine, approximately how much guanine will it have? can someone explain this
Thursday, March 12, 2015 by Zoe

Biology 12
The question is asking to calculate the overall energy change in the combustion of ethane (C2H6). This is what I have done: The balanced equation: C2H6 + 6 O2 --> 2 CO2 + 3 H2O (6) 411 + 346 + (6) 494 --> (2) 799 + (3) 459 2466 + 346 + 2964 --> 1598 + 1377 = 5776 = ...
Wednesday, March 11, 2015 by Vikki

Biology
Are the p1 and p2 generations pure breeding?
Wednesday, March 11, 2015 by Mel

Biology
Would an atom of silicon form an ionic bond with an atom of helium? Why or Why not?
Sunday, March 8, 2015 by Taylor

biology
Assuming logistic growth, if I told you there are currently 100 quail on campus, with r=0.1, but that they have greatly exceeded their carrying capacity = K = 50. How many quail will be in the population next generation I don't remember how K factors in
Friday, March 6, 2015 by Kyle

Biology Ms sue
1.which of the following is a renewable resource? (A.wind) B.fossil fuels C.minerals D.land 2.The goal of -----is to use cells and tissues to treat human illnesses or injuries. A.clone (B.therapeutic cloning) C.reproductive D.gene therapy
Wednesday, March 4, 2015 by Samantha

Biology
1.Which of the following is a renewable resource? A.wind B.fossil fuel C.minerals (D.land) 2.The goal of -------is to use cells and tissues to treat human illnesses or injuries. A.clone therapy B.therapeutic cloning (C.reproductive cloning ) D.gene therapy
Wednesday, March 4, 2015 by Samantha

Biology
When talking about Mendel's experiments, can the Parent (P) generation also be called P1?
Tuesday, March 3, 2015 by Anonymous

biology
Pls how can i itemize the blood cells in litres
Monday, March 2, 2015 by diana

biology
Hello, I got this question wrong on a homework assignment and I still can't find the correct answer. The reduction of the chromosome number during meiosis is most important for: 1: keeping the amount of DNA in the cell at a minimum level. 2: allowing the growth of the cell...
Sunday, March 1, 2015 by Tony

biology
hi, I am studying for an exam and I am trying to really understand the processes of things. So, in a cardiac muscle (everything else normal) what would happen if sympathetic stimulation does not lead to the phosphorylation of Troponin-I? I am asking specifically in regards to ...
Friday, February 27, 2015 by jack

Biology
Which of the following situations best shows Darwin’s theory of natural selection as a mechanism for evolution? A. The long neck of a giraffe is the result of its ancestor continually reaching for higher branches. B. The ancestor of the snake had its legs bitten off by a ...
Friday, February 27, 2015 by TayB

Biology
In fruit flies, eyes can be either white or red, and wings can be either long or short. A mating cross between a red-eyed long-winged female and a red-eyed short-winged male produces the following offpsring: 42 red, short 30 red, long 14 white, short 10 white, long Calculate ...
Friday, February 27, 2015 by TayB

Biology
Do you think that the countries producing sulfur dioxide emissions should compensate their neighbors for the damage being done?
Friday, February 27, 2015 by Taylor

Biology - Genetics
What is the expected genotypes and phenotypes of F1 flies in the cross between virgin brown eyed female with scarlet males (genes for brown and scarlet eyes are on different autosomes)? I know that brown eyes and scarlet eyes are both recessive but I'm not sure what he ...
Monday, February 23, 2015 by Annie

biology
what is one advantage of using e. coli to study bacterial growth rates?
Monday, February 23, 2015 by Mai

biology
A pepper plant is heterozygous for a mutant allele of the gene encoding the CaSGR enzyme (one allele is wild type and the other is mutant). The mutant allele differs from the wild type one in that it lacks a large part of the promoter sequence. Predict the following & briefly ...
Sunday, February 22, 2015 by Cole

Genetics biology
A man and his wife both have normal vision, but a daughter who has color blindness can the man sue his wife for infidelity? show the cross help me please, have been lots of people saying no and yes to this
Friday, February 20, 2015 by Mandy

Biology
need help quickly please If barred pattern on chicken wings is a sex linked trait, set up a cross (hen and rooster), in which they the newly hatched chicks can be determined as male or female based on the barred pattern. and Color Blindness is inherited as a sex linked ...
Friday, February 20, 2015 by Ash

biology
A pepper plant is heterozygous for a mutant allele of the gene encoding the CaSGR enzyme (one allele is wild type and the other is mutant). The mutant allele differs from the wild type one in that it lacks a large part of the promoter sequence. Predict the following & briefly ...
Friday, February 20, 2015 by plsss

Biology
describe how a population is thought to evolve through natural selection. Provide an example (specifically, the peppered moth)
Friday, February 20, 2015 by Ryan

Biology
Which of the following solutions bathing a red blood cell would be considered isotonic? Which of the following solutions bathing a red blood cell would be considered isotonic? a solution containing 300 mM NaCl a solution containing 150 mM glucose a solution containing 400 mOsm...
Thursday, February 19, 2015 by Anonymous

Biology
explain the consequence of x chromosome inactivation in terms of the proteins encoded by the x chromosome genes?
Thursday, February 19, 2015 by James

Biology
Color Blindness is inherited as a sex linked recessive. If a color blind woman marries a man with normal vision, what would you expect in their children? Show a cross I put that X- x- Xx x-
Thursday, February 19, 2015 by Ash

biology
What does it mean when pea plants are described as being true breeding?
Thursday, February 19, 2015 by Lauren

Biology
explain the consequence of x chromosome inactivation in terms of the proteins encoded by the x chromosome genes?
Thursday, February 19, 2015 by Missy

Biology
What happens as a result of insertion (the mutation)?
Tuesday, February 17, 2015 by bobbie

biology
I need help on the following: Imagine that a motor unit, with its nerve intact, is placed in a solution that is calcium-free (but has the proper ionic strength – don’t worry how). Further imagine that the ends of the muscle fibers in the motor unit are held such that...
Friday, February 13, 2015 by jack

Biology - Genetics
If genes a, b, c, and d are genetically linked to each other, does it follow that a recombination experiment would detect genetic linkage between a and d?
Wednesday, February 11, 2015 by Mel

biology
Through which are the chromosomes, transmitted according to the path of transmission of factors from the parental generation to offspring's as indicated by Mendle?option are as follows (1) hereditary chapters (2) evolution (3) heredity (4) gametes
Wednesday, February 11, 2015 by sanjay

biology
How many water molecules would be produced from the dehydration reactions associated with making a protein that has a primary structure consisting of 378 amino acids, and that has a quaternary structure consisting of 2 identical subunits?
Tuesday, February 10, 2015 by kales

Biology
You have a stock solution with following components: glucose: 44 g/L NaCl: 191 g/L Tris Buffer: 275 g/L You mix 71 mL of the solution with water and bring the resulting solution to a final volume of 750 mL. What is the final concentration of glucose in g/L?
Tuesday, February 10, 2015 by Dee

Biology
You prepare a solution by dissolving 319 g of glucose and 114 g of NaCl in water and bring the final volume up to 1,088 mL. What is the final concentration of glucose in g/L?
Tuesday, February 10, 2015 by Dee

Biology
Why do males have a higher blood pressure than females
Monday, February 9, 2015 by Avery

Biology
The nucleus of an atom will NOT contain a)proton b)neutron c)electron could be multiple answers
Monday, February 9, 2015 by Macy

Biology
The chemical reactivity of an atom is determined by the number of ___ present. a) proton b) neutron c) electron could be multiple answers.
Monday, February 9, 2015 by Macy

Biology
A change in the number of ___ will change the mass of a given atom. a)proton b)neutron c)electron
Monday, February 9, 2015 by Macy

Biology
If the number of ___ in an atom is changed, an ion will be produced. a)proton b)neutron c)electron Could be multiple answers
Monday, February 9, 2015 by Macy

Biology
if the number of ____ in an atom is changed, it is no longer the same element. a)proton b)neutron c)electron I'm thinking it's A, what do you think? It could be multiple answers, too.
Monday, February 9, 2015 by Macy

Anthropology
In every culture, cultural constructs will be found. What are the cultural constructs found in the U.S., and how are they used to define gender in society? Compare gender constructs in Pastoralist societies. What differences do you find between the United States and a ...
Saturday, January 31, 2015 by jimmy

Biology
I'm trying to find out how regular cells are similar to cancer cells? I have read the chapter 2 times already and the only thing I can come up with is they both divide to make new cells.
Wednesday, January 28, 2015 by Mike

Biology
Given 3x10^6 cell/mL in 3mL. Perform dilution calculation so that you can have 1x10^5 cell/200ul. Please help me with this question. Much appreciate.
Wednesday, January 28, 2015 by Venice

biology
a category within biology that deals with the physical and chemical functions
Wednesday, January 28, 2015 by dakota

Biology: I am really confused.
What is an experiment group and what is a control group? I was thinking an experiment group were people who experiment the world around them out of curiosity.... and that a control group was people who tried to make the world around them better.... is that right?
Tuesday, January 27, 2015 by Lila

biology
a biologist prepared a strip of agar (a gelatin- like substance) as shown in the figure below. at position 7, he placed a concentrated sample of amino acid A and at position 1, a concentrated sample of enzyme E. E is known to catalyze the conversion of A to a product P. Assume...
Saturday, January 24, 2015 by stella

Science plz help
Explain the basic parts of a major theme in molecular biology: the pathway of DNA to RNA to proteins. Include a general idea of what occurs at each stage
Friday, January 23, 2015 by Sara

Biology
what will the final temperature be of a beaker of water weighing 100g if its initial temperature is 21 ° and is heated using 125 joules in energy?
Friday, January 23, 2015 by cake

biology
Suppose you have monohybrid snapdragons in your garden and you find that they produce red seeds to white seeds in the ratio of 3:1. If the alleles are designated R (red seeds) and r (white seeds), what are the probable phenotypes of the parents (P1)?
Thursday, January 22, 2015 by terbreon

Biology
What is the result of a cross of a heterozygous curly winged fly to a straight-winged fly? (Include both genotype and phenotype with fractions of each) Do I need to make a monohybrid cross or a dihybrid cross?
Wednesday, January 21, 2015 by Annie

Biology
Which of the following is true about DNA? It is a single-stranded molecules Only one of the original DNA strands acts as a template during replication. Both of the original DNA strands act as templates during replication. Its replication takes place in the cytosol.
Tuesday, January 20, 2015 by Sara

Biology
Psychics and astrologers are characterized as:
Monday, January 19, 2015 by Carol

Biology
You have a stock solution of 100mg/100ml methylene blue and you need 6.0 ml of final solution at 2mg/100ml. Design a serial dilution using volumes between 0.1 and 10 ml. Final volume must be 6ml.
Monday, January 19, 2015 by Anonymous

Biology
You have a bacterial suspension and you need to dilute it to 0.0010 of the initial concentration so that you can determine the number of colonies per milliliter. The volumes must be between 0.1 and 2 ml. Your final volume must be 1 milliliter.
Monday, January 19, 2015 by Anonymous

Biology
You need 25ml of 2% milk solution (v/v. How much milk and water will you need?
Monday, January 19, 2015 by Anonymous

Biology
You have been asked to make 200ml of 50% detergent solution (v/v). How would you do it?
Monday, January 19, 2015 by Anonymous

Biology
You need to prepare 270ml of a 20% sucrose solution (w/v). Sucrose has a molecular formula of C12H22O11. How would you prepare this solution?
Monday, January 19, 2015 by Anonymous

Biology
Is xylem or phloem larger in a plant? My answer is xylem is larger in a plant than phloem.
Monday, January 19, 2015 by Lucina

Civics
In the case The Senate Of Tennessee V. John Thomas Scopes, high school biology teacher John Scopes was accused of teaching content that violated a Tennessee law that stopped public school teachers from teaching evolution. Scopes voted this law , but felt his right to free ...
Sunday, January 18, 2015 by jeje

Chemistry
Can someone please tell me what to expect from Beginner High School chemistry? Is it mostly applying mathematics like physics? Or basically memorizing like biology? Thank you!
Saturday, January 17, 2015 by Lucina

Biology
You need to prepare a 0.25 M solution of NaCl but you only need 50 ml of this solution. How many grams of NaCl would you need?
Thursday, January 15, 2015 by Anonymous

Biology
How many grams of glucose are needed to make 500ml of a 3.0M solution of glucose?
Thursday, January 15, 2015 by Anonymous

Biology
You need to make 2.5L OF 3M H2SO4. H2SO4 comes as a stock solution in a concentration of 18M. How many ml of stock H2SO4 would you need to make the new solution?
Thursday, January 15, 2015 by Anonymous

Biology
Are bees and caterpillars apart of kingdom animalia?
Thursday, January 15, 2015 by Sarah

Biology
What is the name of the protein that breaks the hydrogen bonds in the double helix causing the DNA strands to separate during DNA replication? I have a test tomorrow so please help!
Wednesday, January 14, 2015 by Annie

english
Who can give me a topic for research paper related to marine biology?
Wednesday, January 14, 2015 by chrissalyn

english
What is a topic that related to marine biology? And its topical outline?
Wednesday, January 14, 2015 by chrissalyn

English
What is a topic that related to marine biology? And its outline?
Wednesday, January 14, 2015 by chrissalyn

Biology
If P1 - virgin grey body, long wings female cross with P2 - ebony body vestigial wings male.... how do I figure out what the genotype is? I think it is like this... EVg for female and evg for male... but I honestly have no idea...
Wednesday, January 14, 2015 by Annie

Biology
I need to plan a lesson on 'Human Migration' to teach the class. This topic is from B3 GCSE. These are the learning points: ALL: Demonstrate an understanding of the impact of climate change of human behaviour, including: a- The effect of the Ice Age b- Human migration ...
Sunday, January 11, 2015 by Hifza

Biology
How do rocks store oxygen, and how did they come to store them?
Saturday, January 10, 2015 by Anonymous

Biology
Is saliva(spit) a living thing?
Friday, January 9, 2015 by ^Ekingdeft^

Biology check please
1. Who most influenced Darwin's idea that life could change slowly over a long period of time? (1 point) Malthus Hutton and Lyell Lamarck livestock breeders and farmers 2. Who most influenced Darwin's idea that some offspring are better suited to survival than others...
Friday, January 9, 2015 by kat

Biology
Monohybrid Cross - crossing one single Trait to _______? Answer: two alleles
Wednesday, January 7, 2015 by HELP

Biology
Dominant - an organism with the dominant allele For a trait _________? Answer: that produces the same phenotype Recessive - an organism with the recessive Allele for a trait will __________? Answer : ?
Wednesday, January 7, 2015 by HELP

Biology Question
A cell is lacking in its supply of amino acids. Which of the following will occur? A- mRNA will not be formed because enzymes may not be present. B- The ribosomes will not work properly because there will be no proteins. C- tRNA may not be able to fulfill its job. D- all of ...
Friday, January 2, 2015 by Ayrial

Biology
Does the electron transport chain part of cellular respiration involve carbon or carbon dioxide?
Friday, January 2, 2015 by Anonymous

Biology Help Please
A cell is lacking in its supply of amino acids. Which of the following will occur? A- mRNA will not be formed because enzymes may not be present. B- The ribosomes will not work properly because there will be no proteins. C- tRNA may not be able to fulfill its job. D- all of ...
Friday, January 2, 2015 by Ayrial

Biology
A cell is lacking in its supply of amino acids. Which of the following will occur? A- mRNA will not be formed because enzymes may not be present. B- The ribosomes will not work properly because there will be no proteins. C- tRNA may not be able to fulfill its job. D- all of ...
Thursday, January 1, 2015 by May

Biology
Photosynthesis and cellular respiration are often described in two ways: (1) they are chemically opposite; and (2) they have a relationship to each other. Explain what these two statements mean. I need help with this please.
Thursday, January 1, 2015 by Sara

^BiOlOgY^
Need Help~How does EXCRETION occur in SNAKES? What iz thier ORGAN ov EXCRETION? What form iz thier excretory waste?
Thursday, January 1, 2015 by Ekingdeft

biology
the four children of two parents each have a different blood group of the ABO series.what were the blood groups of the parents explain how?
Wednesday, December 31, 2014 by komal yaseen

biology
please explain clearly what is lymphocytes and its funtion?
Wednesday, December 31, 2014 by komal yaseen

biology
explain how we understand mendel's experiments?and what is phenotype?
Wednesday, December 31, 2014 by komal yaseen

biology
please explain complete process of mitosis and meiosis?
Wednesday, December 31, 2014 by komal yaseen

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Homework Help: Science

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