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: 28274

#Unit 5. Developmental Biology

In case of sea urchin (Strongylocentrotus purpuratus), the acrosome reaction is initiated by_____

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#Question id: 33104

#Unit 1. Molecules and their Interaction Relevant to Biology

What can be best concluded from the given figure

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#Question id: 29439

#Unit 6. System Physiology – Plant

Nitrogenase, a complex metal containing enzyme is involved in conversion of N2 to NH3•

a. Nitrogenase is composed of two component proteins

b. Nitrogenase is a complex consisting of the MoFe protein (dinitrogenase or component I) a heterotetramer

c. Nitrogenase is a complex consisting of the MoFe protein (dinitrogenase or component I) a heterotetramer

d. Fe protein (dinitrogenase reductase or component II) a heterodimer

Which of the combination of above statement about Nitrogenase is INCORRECT

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#Question id: 28476

#Unit 5. Developmental Biology

Which of the following activity is involve to maintained pluripotency of ICM?

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#Question id: 220

#Unit 1. Molecules and their Interaction Relevant to Biology

Which structure is not a part of folate?