The phenomenon in which one crossover decreases the likelihood of crossovers in nearby regions is called ________
A) positive interference
B) reciprocal genetic exchange
C) chiasma
D) mitotic recombination
E) negative interference
A
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A population of rabbits increases exponentially until their environment has reached its carrying capacity. Which of the following best describes the cause?
a. Part of the population of rabbits have evolved into a new species that can no longer reproduce with the original species of rabbits. b. The rabbits have become infertile. c. The resources necessary to keep all the rabbits alive have run out. d. The population of rabbits have moved to a new habitat.
In a population, as N approaches K, the logistic growth equation predicts that the
a) population will become monophyletic b) growth rate will not change c) carrying capacity of the environment will increase d) population size will increase exponentially e) growth rate will approach zero
The photosynthetic membranes of the green sulfur bacteria are called ________.
A. chloroplasts B. chlorocytes C. chlorosomes D. chlorophylls
In a healthy male, how many sperm cells would be expected to be formed from (a) 400 primary spermatocytes? (b) 400 secondary spermatocytes?
A) (a) 800; (b) 800 B) (a) 400; (b) 400 C) (a) 1600; (b) 800 D) (a) 1600; (b) 1600 E) (a) 100; (b) 800