The eyeless gene of Drosophila
a. has counterparts in humans.
b. has counterparts in mice.
c. has counterparts in squids.
d. points to a shared ancestor among evolutionarily
distant animals.
e. is all of these.
Answer: e
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Which organelle is round and derives its name from the Latin word for "kernel"?
A) Golgi complex B) mitochondrion C) chloroplast D) nucleus E) lysosome
DNA replication occurs
a. between the gap phases of interphase. b. immediately before prophase of mitosis. c. during prophase of mitosis. d. during prophase of meiosis. e. at any time during cell division.
Certain anticancer drugs change patterns of gene expression and have created a new and effective treatment for
____________________. Fill in the blank(s) with the appropriate word(s).
What is the age structure of a population?
A) the curve that results when the likelihood of dying is plotted as a function of age B) the curve that results when the likelihood of being alive is plotted as a function of age C) the number of individuals alive in different age-groups at one time point D) the difference in the age distribution of a population at two different points in time