If goats are crossed with sheep, embryos will form but cease development and spontaneously abort. This is an example of
A. a prezygotic mechanism.
B. hybrid inviability.
C. hybrid sterility.
D. hybrid breakdown.
E. spermatic behavior.
B. hybrid inviability.
You might also like to view...
Which of the following is an important characteristic for a model organism?
A) marginally characterized B) difficult to manipulate in the laboratory C) prone to random changes that alter primary characteristics D) widely studied E) all of the above
The most medically important bacteria sought in the medical laboratory are cultivated using incubators with temperatures maintained in what range?
a. 35°C to 37°C b. 30°C to 35°C c. 37°C to 39°C d. 25°C to 35°C
Hydrophobic interactions would occur between the R groups of which two amino acids in Figure 3-2?
a. 1 and 4 b. 2 and 5 c. 3 and 6 d. 2 and 4 e. 3 and 5
A mutation that affects the genotype of the organism but not the phenotype is called a
a. nonsense mutation. b. missense mutation. c. frameshift mutation. d. silent mutation.