Suppose this experiment was repeated two weeks in a row. Each time the same person was the hand scrubber and the procedure was repeated exactly the same. Would you expect the number and kinds of microorganisms present in the first hand scrub (A) or the last hand scrub (E) to be similar from week to week?
A) I would expect the number and kinds of microorganisms present in the first hand scrub (A) to be similar from week to week.
B) I would expect the number and kinds of microorganisms present in the last hand scrub (E) to be similar from week to week.
C) Neither choice (scrub A or scrub E) would be similar from week to week.
B) I would expect the number and kinds of microorganisms present in the last hand scrub (E) to be similar from week to week.
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For two genes that show independent assortment, what is the frequency of recombination?
A. 100% B. 75% C. 50% D. 25% E. 0%
If an organism has the appropriate number of chromosomes within their cells, they are referred to as which of the following?
a. polyploid b. trisomy c. aneuploid d. euploid
Four of the following are fungal diseases. Which one is the exception?
a. Candida infections b. Ringworm c. athlete’s foot d. vaginal yeast infection e. Tuberculosis
In what way could marine invertebrates that scatter gametes in the water prevent the sperm from one species from fertilizing the eggs of another species?
a. by preventing the sperm from binding to or entering the egg of another species b. by preventing the resulting hybrids from passing on their genetic material to offspring c. through behavioral isolation d. through geographic isolation e. by preventing the resulting hybrid from surviving