#Question id: 5587
#Unit 5. Developmental Biology
Which gene on the Y chromosome transforms the bipotential gonad into a testis in mammals?
#Question id: 15986
#Unit 12. Applied Biology
#Question id: 5034
#Unit 11. Evolution and Behavior
Which of these statements about human evolution is correct?
#Question id: 542
#Unit 1. Molecules and their Interaction Relevant to Biology
Hamsters love to run on exercise wheels. Prolonged running at a high rate of speed requires ATP. Could a hamster with a defective gene for the enzyme lactate dehydrogenase meet the extra ATP demand for prolonged, fast wheel-running by maintaining a high rate of glycolysis? Why or why not?
#Question id: 3555
#Unit 8. Inheritance Biology
In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is cross with the heterozygous for bitter and no spots, what phenotypes ratio are expected in the offspring?