The separation of genes during the formation of the sperm and egg and the reunion of genes at fertilization is explained
by the behavior of chromosomes in a form of cell division called meiosis.
a. True
b. False
ANSWER: True
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The four macromolecules making up our cells allow for the same structure and function across all cells in the body
a. True b. False Indicate whether the statement is true or false
Which statement does NOT distinguish Darwin’s theory of natural selection from earlier descriptions of biological
diversity and adaptive traits?
a. Biological diversity has purely physical, rather than spiritual, origins. b. Evolutionary change occurs in groups of organisms, rather than in individuals. c. Spiritual explanations account for the origin but not the diversification of individuals. d. Some organisms function better than others in a particular environment. e. Evolution is a multistage process and natural selection eliminates unsuccessful variations.
The redox carriers of the electron transport system that have a tightly bound metal atom responsible for accepting and donating electrons are ________.
A. the cytochromes B. NADP molecules C. FAD molecules D. the flavoproteins E. NAD molecules
In a plant cell, DNA may be found _____
A) only in the nucleus B) only in the nucleus and chloroplasts C) in the nucleus, mitochondria, and chloroplasts D) in the nucleus, mitochondria, chloroplasts, and peroxisomes