Arranging homologous pairs of chromosomes in order from longest to shortest is called:
A. a karyotype.
B. chromosome painting.
C. chromosome numbering.
D. a nuclear genome.
E. Both chromosome painting and
chromosome numbering are correct.
A
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Which of the following is not a virulence factor of Bordetella pertussis?
A. M protein B. Tracheal cytotoxin C. Pertussis toxin D. Filamentous hemagglutinin E. Endotoxin
A protein that regulates transcription by binding to the operator is known as the
A. repressor. B. CAP. C. operator. D. operon. E. promoter.
When RNA-dependent RNA polymerase is synthesizing mRNA it is functioning as a ________.
A. helicase B. replicase C. transcriptase D. ligase
The organism with the highest fitness is
A. an animal that lives 2 years and produces 10 offspring per year. B. an animal that lives 10 years and produces 2 offspring per year. C. an animal that lives one year and produces 10 offspring total. D. an animal that lives 10 years and produces 10 offspring per year. E. an animal that lives 100 years and produces 10 offspring total.