#Question id: 26966
#Unit 10. Ecological Principles
#Question id: 3374
#Unit 11. Evolution and Behavior
Consider an autosomal locus with two alleles A1 and A2 at frequencies of 0.6 and 0.4 respectively. Each generation, A1 mutates to A2 at a rate of μ = 1 x 10-2 while A2 mutates to A1 at a rate of υ = 1 x 10-1) Assume that the population is infinitely large and no other evolutionary force is acting. The overall change in allelic frequency will be
#Question id: 12344
#Unit 10. Ecological Principles
#Question id: 7214
#Unit 5. Developmental Biology
The anterior posterior compartment of each segment of drosophila is defined by wingless and engrailed genes. The following statements are given towards explaining their regulation:
A.cells secreting Hedgehog protein activate wingless expression in their neighbors, and the Wingless protein signal, which is received by the cells that secreted Hedgehog, serves to maintain hedgehog (hh) expression.
B.Engrailed protein also acts in an autocrine fashion, maintaining its own expression.
C.The cells expressing engrailed can bind wingless protein because they contain Frizzled, which is the Drosophila membrane receptor protein for Wingless.
D.Binding of Wingless to Frizzled activates the hedgehog signal transduction pathway, resulting in the continued expression of engrailed.
Which of the following option has all the incorrect statements?
#Question id: 445
#Unit 1. Molecules and their Interaction Relevant to Biology
In order for a reaction to proceed spontaneously from left to right as written