Two different species are crossed and the second generation (F2) illustrates reduced fitness. This is an example of
____.
a. behavioral isolation
b. gametic isolation
c. hybrid breakdown
d. crossing over
e. hybrid sterility
ANSWER: c
You might also like to view...
A general term used to describe groups based on mutual similarity or evolutionary relatedness is ________.
A. group B. system C. taxa D. class
Which of the following is true of embryo cloning?
a. It occurs all the time in nature. b. It involves the genetic contribution of only one parent. c. It produces identical offspring. d. “Artificial twinning” is a laboratory application of the process. e. All of these are true.
Fermentation transfers electrons back to organic molecules through enzymes
What will be an ideal response?
In yeast, if you want to prevent the Gal4 regulatory protein from binding near each of the GAL genes, which sequence element would you target?
A) core promoter B) proximal elements C) enhancer sequence D) homeodomain motif E) upstream activator sequence