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: 21261

#Unit 12. Applied Biology

A copy of the gene encoding enzyme, which is the rate-limiting enzyme in the normal tryptophan biosynthetic pathway is,

TLS Online TPP Program

#Question id: 21262

#Unit 12. Applied Biology

A constitutive promoter derived from the cauliflower mosaic virus is__

TLS Online TPP Program

#Question id: 21263

#Unit 12. Applied Biology

which one of the following is the first edible transgenic variety to reach market?

TLS Online TPP Program

#Question id: 21269

#Unit 12. Applied Biology

Which one of the following is a biomarker for heart failure?

TLS Online TPP Program

#Question id: 21270

#Unit 12. Applied Biology

Which one of the following materials is a biomaterial?

 Electrodes

 Neurons

 Carbon nanotubes

Enzymes 

Which of the following are correct?

TLS Online TPP Program

#Question id: 21271

#Unit 12. Applied Biology

Which one of the following is a detection device or transducer?