A student notes that an individual has attached earlobes, a recessive trait in humans. A cell is taken from this individual, and the alleles for the trait are isolated. What is the probability that one of the alleles was inherited from the individual's mother?
A. 0%
B. 50%
C. 75%
D. 100%
Ans: B. 50%
Biology & Microbiology
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The type of floral attraction that would work on the pollinator in Figure 37-2 is:
a. white flowers. b. purple or blue flowers. c. a strong sweet scent. d. a strong carrion-like scent. e. sweet nectar.
Biology & Microbiology
Which of the following is NOT an active form of an
enzyme? a. trypsin b. amylase c. pepsin d. pepsinogen e. chymotrypsin
Biology & Microbiology
The digestion and utilization of this material creates the greatest need for nitrogenous waste secretion by the kidneys.
A. collagen B. amylose C. oleic acid D. glucose E. lactose
Biology & Microbiology
Biologists captured and marked 100 butterflies, and later captured 115, 5 of which were marked. The
population estimate is 2000 butterflies.
Indicate whether the statement is true or false.
Biology & Microbiology