Which of the following describes a genetic mutation that results in uncontrolled division of a single cell within the body?

Cancer

Gene therapy

Stem cell

Translation

Answer and Explanation

The Correct Answer is A

A genetic mutation that results in the uncontrolled division of a single cell within the body describes cancer. Cancer is a disease of uncontrolled cell division. Its development and progression are usually linked to a series of changes in the activity of cell cycle regulators. In most cases, these changes in activity are due to mutations in the genes that encode cell cycle regulator proteins.

The other options are not correct because they do not accurately describe a genetic mutation that results in the uncontrolled division of a single cell within the body. Gene therapy, stem cells, and translation are not processes that result in uncontrolled cell division.

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Correct Answer is D

Explanation

The apocrine gland is a component of the integumentary system that secretes pheromones. Pheromones are chemical signals that are released by an individual and can aﬀect the behavior or physiology of other individuals of the same species. The other options are not components of the integumentary system that secrete pheromones. The fossa ovalis is a depression in the interatrial septum of the heart, the seminiferous tubule is a structure in the testes where sperm are produced, and the dermal papilla is a structure at the base of a hair follicle that provides nutrients to the hair.

A. 3' TCGATCGCA 5' B. 3' TCGUTCGCU 5' C. 3' AGCTAGCGT 5' D. 5' SucGAUCGCA 3'

Correct Answer is A

Explanation

The sequence of bases on the complementary strand of DNA would read 5' TCGATCGCA 3'. In DNA, the nitrogenous bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The complementary strand is also antiparallel to the original strand, meaning that it runs in the opposite direction with the 5' end matching up with the 3' end of the original strand. The other options do not accurately represent the complementary sequence of bases or the antiparallel orientation of the strands.

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Which of the following describes a genetic mutation that results in uncontrolled division of a single cell within the body?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which of the following is a component of the integumentary system that secretes pheromones?

Correct Answer is D

Explanation

If a portion of a strand of DNA bases reads 5' AGCTAGCGT 3', what would the sequence of bases on the complementary strand read?

Correct Answer is A

Explanation

Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the eﬀects of certain autoimmune disorders. In which of the following ways should the hypothesis be modified, given the new findings?

Which of the following immune system molecules creates holes in the cell membranes of their target cells in order to destroy the cell?

Which of the following describes a genetic mutation that results in uncontrolled division of a single cell within the body?

Which of the following classes of biological molecules includes enzymes?

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