Quantitative inheritance involves the interaction of a number of gene loci. The pattern of genetic transmission typical of quantitative inheritance is ________
A) continuous variation of phenotypic expression
B) usually a pattern that clearly reflects dominance and recessiveness
C) discontinuous distributions such as 3:1
D) typical of Mendelian inheritance
E) a 9:3:3:1 ratio
A
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The products of filtration in the renal corpuscle enter the renal tubule through which of the following structures?
A) the proximal convoluted tubule B) the loop of Henle C) the collecting duct D) Bowman's capsule
Double fertilization in flowering plants refers to ________
a. two sperm fertilizing a single egg b. two sperm fertilizing two eggs c. a single sperm fertilizing two eggs d. a sperm fertilizing an egg and another sperm fertilizing the endosperm mother cell
DNA is replicated by a process called __________. Fill in the blank(s) with the appropriate word(s)
The endosymbiotic theory says that precursor eukaryotic cells acquired mitochondria by endosymbiosis with a ________ ancestor, and others gained photosynthetic ability from endosymbiosis with a ________ ancestor.
A. archaea, cyanobacteria B. protozoan, algae C. helminth, algae D. rickettsial, cyanobacteria E. None of the choices are correct.