Which of the following is not associated with leaf abscission?

a. Chlorophyll breaks down.
b. Anthocyanins accumulate.
c. A layer of cork develops.
d. The middle lamella is strengthened.
e. Carotenoids become visible.


D

Biology & Microbiology

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The nephron begins in the ____

a. glomerulus b. loop of Henle c. cortex d. ureter e. medulla

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Four of the five features listed below are

characteristics of the tropical rain forest. Select the exception. a. extensive erosion b. great biotic diversity c. high rate of decomposition d. lack of soil nutrients e. large herds of herbivores

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If you wanted to prevent a cell from entering the lysogenic pathway, which gene controlled by PRM would you target for inactivation?

A) cro B) Q C) cI D) cII E) O

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If the heritability of criminality is 0.55 in twin studies, what inference can be made about "nature versus nurture" for determining criminality?

a. Children of criminal have a 55% chance of becoming criminals b. Criminal is mainly due to differences in environmental conditions. c. Equal chances exist for any chiold to become a criminal if raised in that environment d. Fifty-five percent of the variability is due to differences in genotypes.

Biology & Microbiology