Recombinant chromatids have a mix of paternal and maternal alleles due to
A. random fertilization of the gametes.
B. crossing-over between the linked genes.
C. persistent linkage of genes on the chromatid.
D. independent assortment.
E. point mutations and gene aberrations from replication.
B. crossing-over between the linked genes.
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In the abyssal zone, which of the following serve as the base of the food chain?
a. chemosynthetic bacteria b. photosynthetic organisms c. phytoplankton d. zooplankton
What is the embryo implant success rate for in vitro fertilization?
a. 10% b. 20% c. 30% d. 50% e. 100%
Phosphofructokinase is an important control enzyme in the regulation of cellular respiration. Which of the following statements concerning phosphofructokinase is not true?
A) It is activated by AMP (derived from ADP). B) It is inhibited by ATP. C) It is activated by citrate, an intermediate of the citric acid cycle. D) It specifically catalyzes the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate, an early step of glycolysis. E) It is an allosteric enzyme.
Which part of cellular respiration generates water?
A. Glycolysis B. Transition Reaction C. Citric Acid Cycle D. Electron Transport Chain E. All of the above