The coding sequence in the DNA of ________ is normally continuous; that is, it is not interrupted by noncoding sequences.
A. mammals
B. bacteria
C. plants
D. most insects
Answer: B
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What would occur if the mother's immune system recognized the syncytiotrophoblast as a foreign tissue?
What will be an ideal response?
In humans, assume that the allele for brown eyes is dominant and the allele for blue eyes is recessive
If two brown-eyed individuals have a child with blue eyes, that means:a. both parents are homozygous for brown eyes. b. both parents are heterozygous for eye color. c. there is a 1/4 chance that their second child will have brown eyes. d. there is a 50/50 chance that their second child will have blue eyes. e. there is a 3/4 chance that their second child will have blue eyes
A cell is inhibited during the S phase of its cycle. It will not reproduce due to lack of
a. ATP availability b. centriole migration c. plasma membrane structure. d. DNA synthesis.
Which of the following is/are true of antibiotic usage and the development of antibiotic resistance?
A. Antibiotics select for resistant mutants and bacteria possessing R-plasmids, increasing their frequency in the population. B. Antibiotics increase the rate of bacterial transformation, conjugation, and transduction, and thus increase the spread of antibiotic resistance. C. Antibiotics cause mutations (antibiotics are mutagens), thus resulting in increasingly resistant bacterial populations. D. Antibiotics cause R-plasmids to form and cause their transfer, spreading antibiotic resistance. E. All of these choices are correct.