Genetic recombination as a result of crossing over occurs more readily between genes that are ____
a. on the sex chromosomes
b. near the centromere
c. located close together on the same chromosome
d. located far apart on the same chromosome
e. located on different chromosomes
ANSWER: d
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In order for bacteriophage to be released from the host by a lysis mechanism, enzymes are required that
A. halt ATP synthesis. B. stabilize the cytoplasmic membrane and cell wall. C. degrade the host chromosome. D. damage the cell wall and cytoplasmic membrane.
Which branch of this phylogenetic tree identifies a kingdom?
a. C b. D c. E d. D and E e. C, D, and E
The production of leukocytes is regulated by
A. erythropoietin. B. colony-stimulating factor. C. prolactin. D. folic acid. E. rennin.
Deoxyribonucleotides and ribonucleotides differ in all of the following except
A) ribonucleotides can serve as energy molecules while deoxyribonucleotides do not. B) deoxyribonucleotides are found in DNA while ribonucleotides are found in RNA. C) the sugar is different in the two types of nucleotides. D) phosphodiester bonds can only form between deoxyribonucleotides, not ribonucleotides. E) the nitrogenous base thymine is only found in deoxyribonucleotides while the nitrogenous base uracil is only found in ribonucleotides.