The release of calcium ions into the egg cytoplasm during fertilization causes all of the following
actions except:a.
an increase in aerobic respiration.
b. onset of the cortical reaction.
c. inhibition of acrosomal enzymes.
d. activation of protein synthesis.
e. onset of a slow block to polyspermy.
C
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The courtship display of the wandering albatross is primarily a(n) ____display
a. acoustical b. visual c. chemical d. electrical e. tactile
The first level of compaction of DNA consists of
A) DNA winding around histones to form small nucleosomes. B) tight coiling of DNA with nucleosomes into higher order structures. C) compaction into metaphase chromosomes. D) histone, DNA, and nonhistone covalent bonding.
The spindle is
A. the network of protein cables that will pull the chromatids to opposite ends of the cell. B. the new cell membrane as it reforms across the cytoplasm during cytokinesis. C. the protein that connects the duplicated chromosomes. D. the protein that DNA winds itself around.
The redox carriers of the electron transport chain that have a tightly bound metal atom responsible for accepting and donating electrons are
A. NADP molecules. B. NAD molecules. C. the flavoproteins. D. FAD molecules. E. the cytochromes.