What is the basis for incomplete dominance?
A) Both alleles of a gene produce weakly functioning proteins.
B) One allele produces some functioning protein; the other allele is nonfunctional.
C) One gene has many effects.
D) An individual has more than two alleles for a gene.
E) Crossing over has switched alleles for a gene on homologous chromosomes.
Answer: B
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Which of the following microbial groups have members which are considered to be autotrophic?
a. fungi b. protists c. prions d. viruses e. All of the above
In the universal ABO blood grouping system, there are four phenotypes - A, B, AB, and O - which are determined by
three different alleles. The presence of three alleles in the ABO blood grouping system is an example of ____.
a. a polymorphism b. genetic drift c. the bottleneck effect d. a dimorphism e. the founder effect
What kind of reaction produces large molecules by
linking small molecules? a. oxidation b. reduction c. condensation d. hydrolysis e. decarboxylation
Refer to Figure 24-1d. The function of the structure labeled 3 is:
a. attachment to a host cell.
b. locomotion.
c. mate recognition.
d. replication.
e. to take over host cell mechanisms