Which of the following is not accomplished by interferon?
a. It directly breaks down viral messenger RNA and inhibits protein synthesis.
b. It enhances macrophage phagocytic activity.
c. It stimulates antibody production.
d. It stimulates the activity of natural killer cells.
e. It slows cell division and suppresses tumor growth.
A
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If an individual carries a pair of alleles that are the same, the individual is ________ for the trait
A) homologous B) homozygous C) heterozygous D) autosomous E) polygenic
The superficial layer of the uterus, which sloughs off periodically in response to cyclic hormonal changes, is the ________
A) mucous membrane that lines the uterus B) basal layer of the endometrium C) entire endometrium D) functional layer of the endometrium
Answer the following questions true (T) or false (F)
1. A tRNA molecule carries an anticodon which is complementary to a specific mRNA codon. 2. You determine a cell to lack both centrioles and mitotic spindle fibers and conclude it will not be able to complete mitosis. 3. Cytokinesis occurs concurrently with telophase of the M phase of the cell cycle.
In an oxidation-reduction reaction, ______ are transferred between molecules
A. oxygen B. electrons