If a diploid organism has a genome consisting of four pairs of homologous chromosomes, it can produce ____
different combinations of maternal and paternal chromosomes in gametes (disregarding crossing over).
a. 4
b. 8
c. 12
d. 16
e. 32
ANSWER: d
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If the partial pressure of oxygen (pO2) in a man's blood plasma decreased below that in his red blood cells, what would be the result?
A. More oxygen would diffuse into his red blood cells and be transported throughout his body. B. Oxygen would diffuse out of his red blood cells, and less oxygen would be transported throughout his body. C. The concentration of oxygen would be the same in red blood cells and blood plasma.
Which statement best describes the difference between cell division in plant and animal cells?
a. Cytokinesis occurs by formation of a cleavage furrow in animal cells, but not plant cells. b. Cytokinesis occurs by formation of a cleavage furrow in plant cells, but not animal cells. c. Centrosomes play an important role in spindle formation in plant cells, but not in animal cells. d. Chromosome replication occurs during interphase in animal cells, while in plant cells, replication occurs when the nuclear envelope disintegrates. e. Animal cells divide via the cell cycle whereas plant cells divide by binary fission.
Carolus Linnaeus developed a classification system for organisms based on their DNA sequences
Indicate whether the statement is true or false.
What does the p-value represent in a t-test?
A. The probability that the samples have different means. B. The probability that, given the populations have equal means, the differences between sample means were due to chance. C. The percent chance that we can accept the null hypothesis. D. The probability that the alternative hypothesis is correct