During the eugenics movement of the 1900s, it was believed that individuals affected with certain genetic disorders should be sterilized to prevent transmitting the gene to future generations. Would such measures be effective? Why or why not?
What will be an ideal response?
Background:
If a genetic disorder is relatively rare (say 1 in 10,000 individuals), they generally assume that the number of heterozygotes must also be rather low. In fact, if 1 in 10,000 members of a population are homozygous for a recessively inherited disorder, it turns out that 1 in 50 (2%) members of the population is a heterozygote, and there are about 200 times as many heterozygotes as there are homozygous recessive individuals.
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Sigma factor belongs to a general group of proteins called the transcription factors
Indicate whether the statement is true or false
The above figure is of a wolf behavior which
tells others a. to prepare for a fight. b. that the wolf is subordinate and won't be a threat. c. that it wants to mate. d. that it wants to play. e. none of these.
Sphincters
a. are muscles in longitudinal arrangement. b. prevent movement of material through the digestive tract. c. are smooth muscles. d. are only found at the beginning of the stomach. e. can contract but not relax.
What was a major morphological criterion on which traditional classification of animals was based?
A. presence or absence of specialized cells. B. presence or absence of a true body cavity. C. presence or absence of genetic material. D. basic pattern of cell division. E. presence or absence of cell wall.