How might gender affect the vertical transmission of culture?
In chimpanzees, offspring
spend their first eight years largely with their mother, and it is the mother who typically
teaches the offspring to use tools to collect food (Lind and Lindenfors, 2010). These
observations suggest that vertical cultural transmission by females is _____ that by males.
A. equal to
B. greater than
C. less than
B
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What has caused this strange result?
A scientist has been growing a bacteria strain for some time in culture media containing very few nutrients. The cells are growing slowly, so she enriches the media with amino acids and carbohydrates. To her dismay, instead of growing faster and to higher densities, the bacteria begin to die. A. A prophage switched from the lysogenic cycle to the lytic cyle. B. A prophage switched from the lytic cycle to the lysogenic cycle. C. The bacteria is infected with a temperate phage. D. The bacteria is infected with a virulent phage, and has switched from the lysogenic cycle to the lytic cycle. E. The bacteria is infected with a temperate phage, and has switched from the lysogenic cycle to the lytic cycle.
While touring a farm, the farmer tells you that she uses cytokinin to increase crop productivity. But, from biology class you know that cytokinin alone has no effect on parenchyma cells. What other substance is the farmer most likely using in conjunction with cytokinin?
A. auxin B. abscisic acid C. strigolactones D. ethylene E. suberin
Which of the following is NOT one of Mendel's hypotheses to explain the results of his P, F1 and F2
crosses?
a. Adult plants carry a pair of genes that will determine the inheritance of each allele. b. If an adult plant has two different alleles, one is dominant over the other. c. Adult plants always have traits that are governed by a single pair of alleles, but the number of possible alleles varies with each trait. d. The pairs of alleles separate in the formation of gametes so that each gamete gets one allele of the pair. e. If an adult plant has two different alleles, one is recessive to the other.
A DNA (library/microarray/screen) may be used to study the complex, changing patterns of mRNA production in an organism.
Fill in the blank(s) with the appropriate word(s).