#Question id: 4728
#Section 3: Genetics, Cellular and Molecular Biology
The genotype r/r ; p/p gives fowl a single comb, R/– ; P/– gives a walnut comb, r/r ; P/– gives a pea comb, and R/– ; p/p gives a rose comb. Which of the following parental genotype would produce 3/8 Walnut comb, 1/8 pea comb, 3/8 rose comb and, 1/8 single comb?
#Question id: 3572
#Section 3: Genetics, Cellular and Molecular Biology
How might the ability of pea plants to self fertilize be a problem for genetic experiments?
#Question id: 3314
#Section 3: Genetics, Cellular and Molecular Biology
The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 14 gm to 16 gm. Which of the following natural selection operate on this species?
#Question id: 1137
#Section 3: Genetics, Cellular and Molecular Biology
A loss-of-function mutation in PTEN phosphatase results in
a. increased cell proliferation.
b. decreased cell proliferation.
c. increased apoptosis.
d. decreased apoptosis.
#Question id: 3265
#Section 3: Genetics, Cellular and Molecular Biology
If the curve shifts to the left or to the right, there is no gene flow, and the population size consequently increases over successive generations, then which of these is (are) probably occurring?