Which of the following is NOT true about the
enzyme telomerase?
a. It can re-establish telomere length.
b. It is found in stem cells.
c. It is responsible for telomere shortening.
d. It may slow the aging process.
e. It is highly expressed in cancer cells
C
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Conifers produce
A. only seeds in cones. B. only flowers. C. both seeds and pollen in cones. D. pollen in flowers and seeds in cones. E. only pollen in cones.
Which of the following best describes the link between survivorship curves and equilibrium species?
A. Equilibrium species are limited by density-independent factors and have few offspring. B. Equilibrium species are limited by density-dependent factors and have many offspring. C. Equilibrium species are limited by density-dependent factors and have few offspring. D. Equilibrium species are limited by density-independent factors and have many offspring.
Elimination and destruction systems present in the phagolysosome include all the following, except
A. lysozyme. B. bromine. C. hydroxyl free radical. D. nitric oxide. E. lactic acid.
Hamilton explained the origin of altruism in selected insect societies with his kin selection model of sex determination. Since males are haploid and females are diploid, the workers share a very high proportion of alleles, theoretically as high as 75%. What is this called?
A. Haplodiploidy B. Haploidy C. Diploidy D. Parthenogenesis E. Altruism