Which of the following describes a haploid?
a. An organism with one set of chromosomes
b. A cell with two matched sets of chromosomes
c. A cell with a pair of homologous chromosomes
d. An organism with double-stranded DNA molecules
a. An organism with one set of chromosomes
An organism with one set of chromosomes describes a haploid.
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Competent cells
A. are able to take up naked DNA. B. are antibiotic resistant. C. occur naturally. D. can be created in the laboratory. E. are able to take up naked DNA, occur naturally, AND can be created in the laboratory.
Sessile organisms predominate on sandy/muddy subtidal habitats
Indicate whether the statement is true or false
Many deep-sea fishes have tubular eyes with
a. a single large retina. b. two retinas. c. multiple retinas. d. no retina. e. compound eyes.
How is the secondary response different from the primary response in terms of antibody concentration in the blood?
a. The secondary response is faster and produces more antibodies than the primary response. b. The secondary response is faster, but does not produce more antibodies than the primary response. c. There is no difference with regard to antibody concentration in the blood. d. The secondary response is slower, but produces more antibodies than the primary response.