A population age structure diagram showing roughly equal numbers in each age group, such as in the United States population pyramid, depicts a
A. stable population.
B. population facing extinction.
C. declining population.
D. growing population.
E. very small population size.
A. stable population.
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_______ are the site of protein synthesis in the cell.
Fill in the blank(s) with the appropriate word(s).
Linked genes
A. are alleles that are found in different daughter cells. B. have no alleles. C. have more alleles than usual. D. are found on the same chromosome. E. are found in the same species.
In the brain, the visual centers are located in the occipital lobes
____________________ Indicate whether the statement is true or false.
A recessive allele on the X chromosome is responsible for red-green color blindness in humans. A woman with normal vision whose father is color blind marries a color-blind male
What is the probability that this couple's first son will be color blind? A) 1/4 B) 1/2 C) 2/3 D) 3/4