Which mechanism is the least likely explanation for high chromosome numbers in ferns?
a. dysploidy
b. polyploidy
c. increased independent assortment
d. increased recombination rates
e. homospory
ANSWER: a
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Apes and monkeys differ in two noticeable characteristics. These characteristics are that apes have
A. opposable thumbs and monkeys do not, and apes have binocular vision and monkeys do not. B. opposable thumbs and monkeys do not, and apes have tails and monkeys do not. C. binocular vision and monkeys do not, and apes have tails and monkeys do not. D. larger brains than monkeys do, and monkeys have tails and apes do not. E. opposable thumbs and monkeys do not, and monkeys have larger brain capacity than apes do.
Most of the enzymes that catalyze biochemical reactions involving amino acids recognize the L stereoisomer
Indicate whether the statement is true or false.
Heterogeneous nuclear RNA is a primary transcript in eukaryotes that is processed prior to involvement in translation
Indicate whether the statement is true or false
The fusion of a sperm and an egg is called _____________
Fill in the blank(s) with the appropriate word(s)