Exam 1 Review

Question 1

All the alleles present in all individuals in a species are referred to as the \_\_\_\_\_\_\_ of that species.
A. Genotype frequency
B. Genotype
C. Allele frequency
D. Gene pool
E. Phenotype

Answer 1

D. Gene pool

Question 2

Phenotypes:
A. None of the other answer options is correct
B. Can only result from gene transcription
C. Can be subject to environmental conditions
D. Are always expressed in the same way
E. Always result solely from the actions of a single gene

Answer 2

C. Can be subject to environmental conditions

Question 3

Variation among individuals in a species is usually caused by:

A. environmental variation only.
B. genetic variation only.
C. environmental, genetic, and infectious variation.
D. both environmental and genetic variation.
E. infectious variation only.

Answer 3

D. both environmental and genetic variation

Question 4

What limits the size that a bacterium can reach?

Answer 4

Diffusion

Question 5

Oxygen is generated if the process is:

Answer 5

Oxygenic

Question 6

Chemoautotrophy is unique to ____otes because ___otes cannot use _______ compounds as a chemical energy source.

Answer 6

prokaryotes, eukaryotes, inorganic