Chromosome segregation in metaphase I
refers to which of the following statements?
a. The position where crossing over occurs is
random.
b. The pole that any one chromosome moves
toward is completely independent of the
movement of the other 45 chromosomes in
humans.
c. Either partner of a homologous pair of
chromosomes may end up at either spindle
pole.
d. The sperm that fertilizes the egg is selected
at random.
e. None of these refer to independent
assortment.
C
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The ____ is a system of vesicles that wraps around each A band and I band and stores ions that are
used in muscle contractions.
a. neuromuscular junction b. Golgi apparatus c. endolemma d. microvillus e. sarcoplasmic reticulum
Identify the major technique that refers to placement of bacteria into a medium such as broth, blood, or a fertilized egg in order to facilitate growth.
A) isolation B) inspection C) inoculation D) identification
Disruptive selection operates whenever:
A) the extremes in a distribution of phenotypes are more fit than the average. B) a phenotype is more successful because it is rare. C) natural selection is disrupted by genetic drift. D) only the largest individuals survive.
Infected, but shows no symptoms of disease
A. Passive Carrier B. Asymptomatic Carrier C. Convalescent Carrier D. Chronic Carrier E. Incubating Carrier