Two genes, A and X, exhibit incomplete linkage. The frequency of each parental gamete (AX and ax) is 45%. What is the approximate frequency of the Ax gamete?
What will be an ideal response?
5%
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Prior to the publication of Charles Darwin's book, On the Origin of Species, what was the prevailing public consensus regarding species evolution?
A. That species were permanent and unchanging B. That species evolved through physical changes that led to success C. That species were modified over time, but did not change into new species D. That species evolved by means of natural selection
Which of the following physical features make
it possible for amniotes to be completely terrestrial?
a. their skin b. their lungs c. their eggs d. their four limbs e. their brains
The best control for rats is
a. a very effective rodenticide. b. removal of garbage which causes them to eat each other. c. cats introduced into the food storage buildings. d. new sonic disturbance boxes. e. none of these.
Asgard archaea are currently a proposed superphylum rather than being universally accepted because ________.
A. they have genes that encode eukaryotic signature proteins such as actin and tubulin B. they possess intracellular trafficking proteins even though they lack endoplasmic reticula and Golgi apparati C. they are known only through DNA sequence fragments; they have not been cultivated in the laboratory D. they are found in chemically and geographically diverse sites