How many chromosomes in a normal human cell?
a. 46
b. 11
c. 20
d. 23
e. 46+1
Ans: a. 46
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Queen Victoria
a. was a carrier of hemophilia. b. had a hemophilic parent. c. had hemophilia. d. married a man with hemophilia. e. both had a hemophilic parent and married a man with hemophilia.
If the frequency of one allele in a population is 0.7 in a population with two alleles at a particular locus, what is the frequency of the alternate allele?
A) 0.09 B) 0.21 C) 0.30 D) 0.42
The hypothalamus and pituitary link the activities
of the endocrine system and nervous system by a. the secretion of hormones in response to the summation of neural messages that enter the hypothalamus. b. shifts in hormonal concentrations being detected by the anterior pituitary. c. the secretion of pheromones as a response to photoperiodic stimuli. d. the nervous tissue of the anterior lobe sending stimuli to the glandular tissue of the posterior lobe to produce hypothalamic hormones. e. all of these.
Satellite-based measures of absorbed photosynthetically active radiation (APAR) can be used to estimate terrestrial ________
Fill in the blank(s) with correct word