Independent orientation of chromosomes at metaphase I results in an increase in the number of
A) gametes.
B) homologous chromosomes.
C) possible combinations of characteristics.
D) sex chromosomes.
Answer: C
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Indicate whether the statement is true or false.
Which one of the following is the least likely reason that bipedalism evolved in hominoids?
A. requires less energy than walking with all four legs B. frees the hands for tool-making C. frees the hands for carrying food to be shared with others D. allows better surveillance for predators E. increases access to food resources
If two genes are almost always found in the same gamete,
a. they are located close together on the same chromosome. b. they are located on nonhomologous chromosomes. c. they are located far apart on the same chromosome. d. they are found on the sex chromosome. e. they are found on the autosome.
Why might a pine seed not have a wing to disperse via air currents?
A) adapted to grow near parent tree B) wing adapted to provide extra protection C) lack of a seed coat on the pine seed D) spread via birds instead