Which genomic arrangement has not been found in viruses?
A) double-stranded RNA
B) a combination of DNA and RNA in the same virus
C) double-stranded DNA
D) single-stranded DNA
E) single-stranded RNA
Answer: B
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Penicillin selection is a positive selection for the isolation of mutants with growth factor requirements
Indicate whether the statement is true or false.
What is it called when members of the same species vie for the same resources?
a. interspecific competition b. predation c. intraspecific competition d. commensalism
DNA polymerase
a. is an enzyme. b. adds new nucleotides to a strand. c. proofreads DNA strands to see that they are correct. d. derives energy from free nucleotides for strand assembly. e. is all of these
Mendel’s paired factors unite during the formation of reproductive cells
__________________ Indicate whether the statement is true or false.