A single dominant gene that produces abnormal connective tissue causes Marfan syndrome. Individuals with the condition exhibit symptoms such as nearsightedness, long thin appendages, and a weak aorta. Marfan syndrome is an example of
A. polygenic inheritance.
B. pleiotropy.
C. multiple alleles.
D. lack of dominance.
B. pleiotropy.
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In the microdroplet culture method, cells from mixed assemblages are encapsulated in a gel matrix. The matrix is then emulsified to generate gel "microdroplets"; each microdroplet contains a mixture of cells.
Answer the following statement true (T) or false (F)
A group of DNA nucleotides that contains the information to produce a single protein is a
A. gene. B. promoter. C. base. D. codon.
If meiosis did not precede fertilization, what would happen to the chromosome number after each generation?
A. It would be half of the parents’ chromosome number. B. It would be two times the parents’ chromosome number. C. It would be four times the parents’ chromosome number. D. It would be eight times the parents’ chromosome number. E. It would remain the same.
Which of the following vitamins is fat-soluble and, consequently, can be stored in body fat?
A) biotin B) pantothenic acid C) niacin D) K