Question

You have a population of mice and find some mutants that are pure white. You select...

You have a population of mice and find some mutants that are pure white. You select these and establish two pure-breeding lines of white mice. You cross these two different lines together and you get all normal (grey) coloured mice offspring.
a) What is this known as?
b) This result tells you that there are at least how many genes involved in normal colouration in mice?
c) Explain, in terms of mutations and genetic pathways, what could account for these observations.

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer is attached

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Suppose you have a group of beetles. You find that a white eye color in one...
Suppose you have a group of beetles. You find that a white eye color in one of the beetles is due to a point mutation. Refer to B and b (where B is the allele associated with the dominant phenotype, and b is the allele associated with the recessive phenotype) in order to answer the following questions: 1) The cross of a pure breeding male with white eyes with a pure breeding female with normal eyes leads to all offspring...
. You are studying cats and coat colour. You have pure-breeding black female cats with normal...
. You are studying cats and coat colour. You have pure-breeding black female cats with normal toes and you cross them to pure-breeding orange male cats with extra toes. You get F1 progeny that all have extra toes. The males are all black and the females are all tortoiseshell (with black and orange patches of fur). A. (4 points) Explain the F1 phenotypes by assigning symbols to the genes and alleles in question, showing the parental and F1 genotypes. Use...
You cross two individual striped mice multiple times. The resulting F1 generation offspring all have striped...
You cross two individual striped mice multiple times. The resulting F1 generation offspring all have striped coats. You cross F1 mice multiple times and observe the following phenotypes among the F2 offspring: 145 striped mice, 37 spotted mice, 13 mice with no patterns. From these observations you suspect that coat patterning is under the control of two bi-allelic genes experiencing dominant epistasis. Answer the questions below (Q 1-3) and use a Chi-square test to support or reject your hypothesis, then...
23. You have two pure breeding fruit flies, with a wing shape that can be can...
23. You have two pure breeding fruit flies, with a wing shape that can be can be either normal (N) or (Vesgial) (n) and have Red Eyes or (R) or white (r).  A normal and white fly is crossed with a vestigial red eyed fly. The resulting F1 plats are crossed. A total of 640 F2 progeny are phenotypically observed: (16 Points) 360 Normal and Red 120 Normal and White 120 Vestigial and Red   40 Vestigial and White What is the...
Simple Dominance with 2 genes A gene in cats causes them to be black (dominant) or...
Simple Dominance with 2 genes A gene in cats causes them to be black (dominant) or brown (recessive). A second gene causes cats to be agouti (have stripes on their hairs) or non-agouti (solid colored hairs). If you did a dihybrid cross between two black haired agouti cats, what fraction of the offspring would be expected to have each phenotype? If a dihybrid black agouti cat mated with a brown cat that was heterozygous for the agouti gene, what fraction...
Please answer all the questions A species of scarab beetles have red, orange or golden wing...
Please answer all the questions A species of scarab beetles have red, orange or golden wing covers. A cross between a pair of orange beetles gave 3/4 offspring orange and 1/4 golden.  A cross between a red and an orange pair have 1/2 red and 1/2 orange offspring. How do you explain these results?  Choose the best answer.  The trait is controlled …. Select one: a. by three alleles with incomplete dominance b. by three alleles with both dominance, incomplete dominance and recessive...
The picture shown below shows variation among three individuals with respect to 4 nucleotides - AGAT....
The picture shown below shows variation among three individuals with respect to 4 nucleotides - AGAT. What do you think what type of variation is this? AGAT different repeat numbers in different individuals .png Minisatellite Single nucleotide polymorphism Short Tandem Repeats Which of the following statements is TRUE about DNA matching? Typical difference between the genomes of human beings and Chimpanzees is estimated to be 25 % Typical difference between the genomes of human beings and Drosophila is   estimated to...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...
Sign In INNOVATION Deep Change: How Operational Innovation Can Transform Your Company by Michael Hammer From...
Sign In INNOVATION Deep Change: How Operational Innovation Can Transform Your Company by Michael Hammer From the April 2004 Issue Save Share 8.95 In 1991, Progressive Insurance, an automobile insurer based in Mayfield Village, Ohio, had approximately $1.3 billion in sales. By 2002, that figure had grown to $9.5 billion. What fashionable strategies did Progressive employ to achieve sevenfold growth in just over a decade? Was it positioned in a high-growth industry? Hardly. Auto insurance is a mature, 100-year-old industry...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT