The carotenoid b-carotene, whose structure and absorption spectrum at,

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#Question id: 18813

#Unit 13. Methods in Biology

Location of a specific protein is predicted in vivo is done accurately by which of the following technique

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#Question id: 5031

#Unit 11. Evolution and Behavior

Which era is known as the ʺage of reptilesʺ?

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#Question id: 15838

#Unit 8. Inheritance Biology

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?

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#Question id: 28307

#Unit 5. Developmental Biology

Symmetrical beating of the flagellum is changed into a rapid asynchronous beat with a higher degree of bending is an example of ____

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#Question id: 33910

#Unit 2. Cellular Organization

What is the Lk of a 5,000 bp circular duplex DNA molecule after eight enzymatic turnovers by a single molecule of DNA gyrase in the presence of ATP?