Phenylketonuria in humans is an example of __________
A. incomplete penetrance
B. codominance
C. an environmentally-influenced trait
D. incomplete dominance
C
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CD4 and CD8 proteins are used for in vitro tests as T cell markers to differentiate TH cells from TC cells
Indicate whether the statement is true or false.
Which of the following is TRUE at the end of
telophase I in corn (20 chromosomes)? a. Each cell has 10 chromosomes. b. Each chromosome is double-stranded. c. Centromeres connect sister chromatids. d. Each cell has 10 chromosomes, and each chromosome is double-stranded. e. Each cell has 10 chromosomes, each chromosome is double-stranded, and centromeres connect sister chromatids.
Mutations may exert a variety of effects on living systems. List at least three categories of mutations based on their biological effects
What will be an ideal response?
Teosinte is a wild grass in Mexico from which corn (maize) was originally domesticated. How might corn that is grown commercially compare to teosinte?
A) Corn is less genetically diverse than teosinte. B) Corn is more genetically diverse than teosinte. C) Corn is a threat to teosinte populations. D) Corn is about as genetically diverse as teosinte.