Which factor(s) is (are) contributing to the increase in the spread and occurrence of many diseases?
a. International travel
b. Overuse of antibiotics
c. Misuse of antibiotics
d. An increase in the population
e. All of these
E
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Transcribed DNA sequences that are removed during mRNA processing are called _____________________
Fill in the blank(s) with correct word
Two formal terms used to describe categories of mutational nucleotide substitutions in DNA are ________
A) error prone and spontaneous B) sense and antisense C) base analogs and frameshift D) euchromatic and heterochromatic E) transversions and transitions
When an organism has two alleles at a particular locus that are different, the organism is called
a.) purebred. B.) dominant. C.) heterozygous. D.) recessive.
Which method is often used to analyze proteins and nucleic acids by physical separation when estimating genetic variation in populations?
A) centrifugation B) absorption spectrophotometry C) electrophoresis D) in situ hybridization E) fluorometry