Some tentative patterns that are emerging from the study of complex traits are that:
A. some genes involved in complex traits are
pleiotropic.
B. many genes involved in complex traits
show epistasis.
C. most genes affecting complex traits have
major effects; few have minor effects.
D. genes involved in complex traits can show
pleiotropy or epistasis.
E. genes involved in complex traits can show
pleiotropy or epistasis, and most have major
affects.
D
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Arrange the steps in translation in order from earliest to latest
A) movement of the ribosome three bases closer to the 3' end of the mRNA B) peptide bond formation C) identification of initiator codon and joining of large and small ribosomal subunits D) release of the polypeptide from the ribosome and dissociation of ribosomal subunits E) binding of a charged tRNA to a codon in the A site of ribosome
Of the following carbon reservoirs, which contains the lowest mass of carbon?
a. atmosphere b. oceans c. sedimentary rock d. soil
Assume that a cross is made between tall and dwarf tobacco plants
The F1 generation showed intermediate height, whereas the F2 generation showed a distribution of height ranging from tall to dwarf, like the original parents, and many heights between the extremes. These data are consistent with which one of the following modes of inheritance? A) multiple-factor inheritance B) hemizygosity C) codominance D) alternation of generations E) incomplete dominance
Stereoisomers that are nonsuperimposable mirror images of each other are known as:
A) anomers. B) cis-trans isomers. C) diastereoisomers. D) enantiomers. E) geometric isomers