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 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
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 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