The number and kinds of genes inherited by a population is called the
a. genotype.
b. phenotype.
c. gene pool.
d. genetic drift.
e. genetic variation.
C
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After a plant has survived a microbial invasion, the rest of the plant is often less vulnerable to future infections. This is
called ____.
a. systemic acquired resistance b. wound defense c. gene-for-gene recognition d. hypersensitive response e. jasmonate response
Intellectual disability can result if a baby does not receive enough oxygen during labor or birth. Which cause of intellectual disability best describes this situation?
A) Abnormal genes or chromosomes B) Environmental exposure to toxins C) Malnutrition D) Noninherited birth defects
________ is the use of living organisms or their products to clean up the environment, improve human health, and provide more nutritious and disease-free food
A) Bioremediation B) Biotechnology C) Genetic engineering D) Biodegradation E) Bioprocessing
Histone deacetylase inhibitors are a class of drugs used as mood stabilizers and anti-epileptics that are also being researched for their efficacy as anti-cancer agents. Histone deacetylase inhibitors block the action of histone deacetylases, which remove acetyl groups from lysine residues in histone tails. How will blocking histone deacetylases affect gene expression in the cell?
A. Chromatin will become more tightly compact, and gene expression will be increased. B. Chromatin will become more tightly compact, and gene expression will be reduced. C. Chromatin will become more methylated, and gene expression will be decreased. D. Chromatin will become more open, and gene expression will be increased. E. Chromatin will become more open, and gene expression will be reduced.