You are given a genetic mapping project as an undergraduate research assistant. You are told that
genes a and b are 7.4 map units from each other and that genes b and c are 5.7 map units from each
other. You do a cross to determine the map distance between a and c. Which of the following results
would indicate that c lies between a and b?
a. 11.1 map units
b. 15.0 map units
c. 2.0 map units
d. 14.8 map units
e. 13.1 map units
C
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Sexual reproduction involves ____
a. one diploid cell fertilizing a haploid cell b. the union of two somatic cells c. the union of male and female gametes d. a single mitotic division of the parent cell to produce a daughter cell e. the union of two gametes to produce a haploid zygote
The sympathetic nervous system is part of the
A. limbic system in the brain mediating emotion. B. somatic nervous system. C. central nervous system. D. learning and memory system. E. autonomic nervous system.
In a population exhibiting logistic growth, what happens when the carrying capacity is exceeded?
a) the population crashes and becomes extinct b) the growth rate becomes negative until the population is back within the carrying capacity c) the populations fertility drops to zero d) the growth rate becomes zero until the population is back within the carrying capacity e) the population fluctuates around the new level
Which of the following stages of an infectious disease is the most severe?
A) the incubation period B) the prodromal period C) the illness period D) the decline period E) the convalescence period