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 relative order of st, pr-1 and pr-2?

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#Question id: 10833

#Unit 10. Ecological Principles

All the organisms that occur in the redwood community

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#Question id: 461

#Unit 1. Molecules and their Interaction Relevant to Biology

The conversion of glucose-1-phosphate to glucose-6-phosphate by the enzyme phosphoglucomutase has a △G°ʹ of -7.6 kJ/mol. Calculate the equilibrium constant for this reaction at 298 K and a pH of 7. (R = 8.315 J/K-mol)

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#Question id: 7039

#Unit 5. Developmental Biology

A population of cells from the mammalian trophoblast that undergoes mitosis without cytokinesis resulting in multinucleate cells, termed as

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#Question id: 31097

#Unit 4. Cell Communication and Cell Signaling

The protein that senses Ca+2 depletion in the ER is called:

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#Question id: 3278

#Unit 11. Evolution and Behavior

What does the biological species concept use as the primary criterion for determining species boundaries?