hydrogen bond
What will be an ideal response?
a weak bond between partially positively charged hydrogen atoms and partially negatively charged
elements or molecules
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In the Lederberg and Tatum experiment what is the purpose of performing the experiment with the strains without adding them together?
A. It serves as a control to calculate the rate of reversion mutations B. There is no experimental purpose to performing that part of the experiment C. It tests that the strains were made correctly D. It tests to make sure the media was made correctly
Soluble fiber is important in your diet as it tends to decrease your cholesterol level. It does so by
a. binding to and eliminating bile acids. b. binding to and eliminating cholesterol. c. decreasing your HDLs. d. increasing your HDLs e. decreasing your LDLs.
If individuals in the same town continue to only mate with other individuals from the same town, one would expect to
see an increase in ____ within the population. a. genetic drift b. migration c. heterozygosity d. homozygosity e. assortative mating
Figure 21.17
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Refer to the accompanying figure for questions 22 and 23.
At which stage does the Plasmodium (malaria) parasite reproduce asexually and mature into merozoites?
A. A B. B C. C D. D E. E