Sunday
April 20, 2014

Homework Help: Genetics

Posted by Tommy on Friday, November 18, 2011 at 2:11pm.

1) For each of the following partial diploids, give the cellular phenotypes for A and B. Explain.
A B
a. for a negatively regulated gene:
FpR- poA-B/ pR po-AB-

Fp-R p-oA-B/ pR- poAB-

b. for a positively regulated gene:
FpR- poA-B/ pR po-AB-

Fp-R p-oA-B/ pR- poAB-

2) Would attenuation of the type seen in the tryp operon of E. coli be likely to occur in humans? Why or why not?

3) In the yeast gal gene system, in which genes should you be able to isolate mutations which can not turn on the gene?

4) In the developing Drosophila embryo system, what kind of mutation would give rise to:
a. an embryo with 3 abdominal segments missing
b. a fly with the correct number of segments, but had two additional thoracic segments and two fewer abdominal segments.

5) How is it possible for an organism with 20,000 genes to produce millions of different (protein) antibodies?


I was wondering if you could help out with any of these questions to help me study for a test. Thank You

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - The time dependent concentration of solute particles in a solution ...
chemistry - When determining partial negatives and partial positives, does the ...
biochemical genetics - You have discovered a new species of yeast and you would ...
Maths - If z=(x^n) f(x/y), where f is an arbitrary function, show that: x(...
Chemistry Help PLEASE!! - I don't know how to do this question, I understand we ...
Chemistry - If N2 is added to a balloon that contains O2 (partial pressure 450 ...
Chemistry - If N2 is added to a balloon that contains O2 (partial pressure 450 ...
Science Helpp!! - Explain how the pair of terms are related and/or how they are ...
chemistry help!!!!! - Consider the following reaction: Find the equilibrium ...
biology - Draw a picture of the structure of a water molecule that includes all ...

Search
Members