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 distance between the st and pr genes?

TLS Online TPP Program

#Question id: 20315

#Unit 7. System Physiology – Animal

The testes have an additional enzyme, which converts androstenedione to testosterone:

TLS Online TPP Program

#Question id: 20316

#Unit 7. System Physiology – Animal

Which of the following statements best describes Cushing's syndrome?

TLS Online TPP Program

#Question id: 20317

#Unit 7. System Physiology – Animal

Which of the following statements correctly describes the pathophysiology of Cushing's disease?

TLS Online TPP Program

#Question id: 20318

#Unit 4. Cell Communication and Cell Signaling

Which statement is not correct about bacterial quorum sensing?

TLS Online TPP Program

#Question id: 20319

#Unit 4. Cell Communication and Cell Signaling

What is the purpose of quorum sensing?

TLS Online TPP Program

#Question id: 20320

#Unit 4. Cell Communication and Cell Signaling

What processes controlled by quorum sensing-

a. Bioluminescence

b. Production of virulence factors 

c. Formation of biofilms

d. Competence for uptake of DNA

e. Antibiotic production

Which one of the following combinations of above statements is correct?