You are interested in a new type of autosomal dominant mutation that gives purple eyes in Drosophila. You have a true-breeding purple-eyed line carrying a mutation that you call pr-1. You have isolated a second purple-eyed mutation that you call pr-2, which you have established in a true-breeding line that also carries a recessive marker st, which gives stubby legs. You cross a fly from the pr-1 line to a fly from the st, pr-2 line producing F1 females which you then cross to males from a true breeding st line (normal eyes). From this cross, 1000 progeny flies can be categorized into four different phenotypic classes:

                   

What is the phenotype of a pr-1 pr-2 double mutant?

TLS Online TPP Program

#Question id: 33405

#Unit 1. Structure and Function of Biomolecules

Which one of the following defines the psi angle in the  protein backbone?

TLS Online TPP Program

#Question id: 33406

#Unit 1. Structure and Function of Biomolecules

If  Phi is fixed at 0º, then which of the following is correct 

a. Clashes occur at ALL Psi angles. 

b. Phi = 0º is physically impossible.

c. Clashes occurs at +10º to -130º

d. Clashes occurs at -90º to -180º

TLS Online TPP Program

#Question id: 33407

#Unit 1. Structure and Function of Biomolecules

Psi is fixed at +165º. Then

TLS Online TPP Program

#Question id: 33408

#Unit 1. Structure and Function of Biomolecules

Thermal denaturation curve of a protein denoted as

TLS Online TPP Program

#Question id: 33409

#Unit 1. Structure and Function of Biomolecules

Which of the following is chaperonins 

TLS Online TPP Program

#Question id: 33410

#Unit 1. Structure and Function of Biomolecules

In general, proteins whose folding is chaperone-dependent pass down a pathway in which of the following acts first