In a monohybrid cross
(a) only one trait is being considered.
(b) the parents are always dominant.
(c) the parents are always heterozygous.
(d) no hybrid is produced.
9. The genetic makeup of an organism is it
(a) only one trait is being considered.
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Epiphytes are non-parasitic plants that grow on other plants
a. True b. False
Refer to Figure 36-1. The endodermis is the structure labeled:
a. 3.
b. 4.
c. 5.
d. 6.
e. 7.
All northern elephant seals come from a very small genetic pool. This is because in the 1890s a large number of them were very quickly killed until their population size was reduced to only about 20 individuals. Though their population has since increased to over 30,000 individuals, all their genes have come from those 20 individuals. Which of the following population genetic concepts does this example represent?
a) genetic drift b) evolution c) the Hardy-Weinberg equilibrium d) the founder effect e) the bottleneck effect
What is true regarding antigens?
A. The most effective antigens are small simple amino acid complexes. B. Bacteria do not contain antigens. C. A large antigen is likely to have many different epitopes, each of which can stimulate a distinct immune response. D. An antigen is a molecule that promotes a general immune response. E. Antigens can only be recognized by their lipid moieties.