All of the alleles of all of the genes in a certain population is the ___________ of that population.
A. Gene pool
B. Genotype
C. Gene flow
D. Mutation
Ans: A. Gene pool
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Mineralization refers to
A. the utilization of minerals as energy sources. B. the incorporation of inorganic material into organic materials. C. the breakdown of organic materials to inorganic materials. D. the release of various minerals from ores.
Which of the following organelles is involved in the modification, packaging, and secretion of materials?
A. Centrioles B. Lysosomes C. Golgi apparatus D. Mitochondria
Most cancers require at least two mutations: 1) one in an oncogene, which encodes proteins that trigger cell division,
and 2) one in a tumor suppressor gene, whose protein products, in their unmutated form, play a key role in preventing the cell cycle from progressing if the DNA is damaged or in the absence of specific cues. Which class of proteins might be considered tumor suppressors?
a. Cdk inhibitors b. cyclins c. growth factor receptors d. microtubules e. transcription factors
A chemical reaction in which a water molecule is a reactant is known as a (dehydration/hydrolysis) reaction.
Fill in the blank(s) with the appropriate word(s).