Which of the follow situations is an example of gene flow?
a. An acorn is carried by a bird to the other side of the valley
b. Two birds instead of one born with blue feathers.
c. The fastest rabbit escapes the foxes and survives long enough to reproduce.
d. Male deer fighting for territory every fall.
e. A new trait appearing in an offspring.
a
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What violations of HWE are common in small populations? In large populations?
What will be an ideal response?
Metabolism refers to
A. chemical reactions such as photosynthesis. B. the process of reproduction. C. the formation of heterotrophs. D. a collection of hypotheses.
___________ is a master regulator gene whose mRNA product accumulates at one end of a fly egg, resulting in a concentration gradient of the protein product after fertilization.
Fill in the blank(s) with the appropriate word(s).
________ are a component of the immune system that are able to destroy cancer cells by deploying toxins into infected cells as a means of killing them. In this role they are cytotoxic—that is, "cell killing."
A) Natural killer cells B) Phagocytes C) Antibodies D) B cells