Which of the following reproductive barriers actually prevents individuals of different species from mating with each other?
a. gametic isolation
b. behavioral isolation
c. hybrid sterility
d. hybrid breakdown
e. hybrid inviability
Ans: b. behavioral isolation
You might also like to view...
Approximately one-third of a polypeptide chain consists of reverse turns because:
A. turns increase stability. B. turns are the site of substrate binding. C. turns allow a polypeptide to assume a globular configuration. D. ? helices are stabilized by turns. E. ? sheets are stabilized by turns.
The production of cyclic AMP in Dictyostelium results in
a. sexual reproduction. b. cell division. c. swimming. d. spore production. e. aggregation of cells.
If the number of chromosomes in an animal's gametes is 20, then a somatic cell from that animal
would contain ____ chromosomes.
a. 5 b. 10 c. 20 d. 40 e. 80
A cherry blossom has all four sets of modified leaves (sepals, petals, stamens, and carpels), so it is called a
__________ flower. Fill in the blank(s) with the appropriate word(s).