Which of the following statements is FALSE?
a. Crossing over tends to reduce the frequency
that two linked genes are inherited together.
b. Independent assortment of homologous
chromosomes during meiosis increases
variation.
c. Crossing over leads to variation.
d. Abnormal number or structure of
chromosomes may influence the course of
evolution.
e. The closer together genes are found on a
chromosome, the greater is a chance that
crossing over will occur between them
E
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An animal that is evolved for rapid movement over the ground will have relatively ____ bones
a. heavy and thick
b. heavy c. light and thin d. light e. heavy and thin
Thomas Bell and his colleagues showed that ______
a. island size affects beech tree populations b. beech trees are islands for bacteria c. number of bacteria species increases with tree hole volume d. large beech trees support higher bacteria populations than small beech trees e. salt marsh bacteria can live on large beech trees
Explain the composition and use of minimal medium in the study of bacterial genetics
What will be an ideal response?
Which of the following statements about G-protein-coupled receptors (GPCRs) is false?
(a) GPCRs are the largest family of cell-surface receptors in humans. (b) GPCRs are used in endocrine, paracrine, and neuronal signaling. (c) GPCRs are found in yeast, mice, and humans. (d) The different classes of GPCR ligands (proteins, amino acid derivatives, or fatty acids) bind to receptors with different numbers of transmembrane domains.