A researcher tracks the escape behavior of a population of squirrels on campus across two generations
When she plots the escape behavior of the offspring generation against the parental behavior, she notes that the offspring's behavior exactly matches the parental behavior. Nonetheless, the narrow-sense heritability equals zero. How can the heritability equal zero in this example?
a. The additive genetic variance equals zero.
b. All the escape behavior alleles are fixed in the population.
c. There is no phenotypic variation.
d. A and B.
e. All of the above.
D
You might also like to view...
All protists are _____
A) unicellular B) eukaryotic C) symbionts D) monophyletic E) mixotrophic
Which of the following components of PCR ensures amplification of the target DNA sequence only, despite the presence of many other DNA sequences?
A. Polymerases B. Primers C. dNTPs D. High temperatures
Which vitamin deficiency is correctly paired with the condition it causes?
a. vitamin D deficiency: in bone hardening b. vitamin K deficiency: in decreased blood clotting time c. vitamin D deficiency: in anemia d. vitamin K deficiency: in increased blood clotting time
Judah Folkmann suggested that solid tumors __________.
a) might be desiccated by osmotic action b) might be destroyed by enhancing their ability to form new blood vessels c) might be destroyed by inhibiting their ability to form new blood vessels d) might be dissipated by enhancing the ability of cancer cells to separate from each other e) might be enlarged by breaking down neighboring tissues