Both DNA and RNA polymerases must be able to copy from a template strand with great accuracy. Still, either one can make mistakes that could lead to a mutation
For which one of these polymerases would a mistake be the most serious in the long term? Explain your answer.
RNA polymerase makes mRNA, a molecule used in translation for a short period of time before it is broken down. DNA is the permanent record of a gene, so errors made by DNA polymerase are permanent.
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If a mouse has 12 chromosomes how many linkage groups will it posses?
a. 16 b. 5 c. 12 d. 112 e. 36
A hydrogen bond is
a. a sharing of a pair of electrons between a hydrogen and an oxygen nucleus. b. a sharing of a pair of electrons between a hydrogen nucleus and either an oxygen or a nitrogen nucleus. c. an attractive force that involves a hydrogen atom and an oxygen or a nitrogen atom that are either in two different molecules or within the same molecule. d. none of these. e. all of these
During a DNA profiling analysis, short tandem
nucleotide repeats are first
a. subjected to high heat. b. inserted into a plasmid. c. chopped up using a restriction enzyme. d. placed on a gel for electrophoresis. e. amplified using PCR
Which of the following is not a mode of action of antiviral drugs?
A. Block penetration B. Block maturation C. Bond to ergosterol in the cell membrane D. Inhibit DNA synthesis E. Block transcription and translation