The human X chromosome
a. is found in females.
b. is found in males.
c. carries different genes than the Y chromosome.
d. interacts with a Y chromosome as homologues
during meiosis.
e. fits all of these descriptions.
Answer: e
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The portion of the flower containing pollen grains is
(a) the pollen sac. (b) the microsporangium. (c) the anther. (d) all of the above.
Suppose you saw the seedling pictured at the right while walking in the woods.
a. To which gymnosperm phylum does the plant belong? b. Identify structures a) seed coat and b) cotyledon.
All of the following are techniques associated with biotechnology EXCEPT
a. GMOs. b. identifying genetic markers. c. therapeutic cloning. d. gene therapy
If peach trees growing in specific mild climates
of the southern United States do not receive about 850 hours of temperatures below 40 degrees, they will not produce flowers in the spring. This is explained by which of the following terms?
a. photoperiodism b. phototropism c. senescence d. vernalization e. dormancy