Which component of the CRISPR-Cas technology is not found in bacteria?
A. crRNA
B. tracrRNA
C. a linker
D. Cas9
Answer: C
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At the molecular level, the "choice" between lytic and lysogenic pathways is determined by:
A. the positive regulatory effects of a large number of bacteriophage proteins produced soon after infection. B. the negative regulatory effects of a large number of bacteriophage proteins produced soon after infection. C. the positive regulatory effects of a small number of bacteriophage proteins produced soon after infection. D. the negative regulatory effects of a small number of bacteriophage proteins produced soon after infection. E. the positive and negative regulatory effects of a small number of bacteriophage proteins produced soon after infection.
The separation of duplicated chromosomes into two new nuclei is known as ____
a. mitosis b. cytokinesis c. binary fission d. meiosis e. fertilization
The most general of the pituitary hormones, in that it
may affect almost any cell in the body, is a. the adrenocorticotropic hormone. b. the thyroid-stimulating hormone. c. gonadotropin. d. somatotropin. e. prolactin.
Which of the following is a gastric enzyme that breaks down proteins into peptides?
A) Pepsin B) Sodium bicarbonate C) Bile D) Lipase E) Amylase