Which of the following is an example of migration?
A) frogs leaving a pond after metamorphosis
B) hawks finding a new territory after maturing
C) seeds dispersing from a tree
D) humpback whales traveling up and down the coast of western United States
D
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The coding region of mRNA is called a(n) ; ____ , whereas the noncoding region is called an ____
Fill in the blank with the appropriate word.
When heritability is 0%:
A. genes play no role in the expression of the trait. B. genes play a role in the expression of a trait, but only a small one. C. genes play a role in the expression of a trait, but it can't be measured. D. genes play no role in variation in the trait among individuals. E. genes play a role in variation in the trait among individuals, but it cannot be measured.
Suppose you take a cell from an adult cow and attempt to produce a clone of that cow. Also suppose that, for some reason, telomerase is NOT functioning in that cell or in any cell that comes from it. What would you expect to happen with the clone?
a. The lack of telomerase should have no effect on the clone. b. When the clone grows up, it will most likely have cancer. c. The cell will never be able to divide at all. d. The cell may divide, but after a certain number of divisions, cell division will stop.
If a eukaryotic cell has a single set of chromosomes, it is called