Marsupials are distinguished by

A. a marsupium.
B. mammary glands.
C. opposable thumbs.
D. nails.


A. a marsupium.

Biology & Microbiology

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An eccentric fragment is one result of crossing-over between a normal chromosome and a chromosome that has undergone what kind of mutation?

A) parametric inversion B) duplication C) reciprocal translocation D) eccentric inversion

Biology & Microbiology

A type of horizontal gene transfer in prokaryotes, in which a cell receives bacterial DNA from a bacteriophage, is

A. fixation. B. transformation. C. replication. D. transduction. E. conjugation.

Biology & Microbiology

__________ is thought to be due to increased homozygosity

a. The founder effect b. Genetic drift c. Inbreeding depression d. Heterozygote advantage e. Gene flow

Biology & Microbiology

The preference of a pathogen for a specific host is

A) opportunism. B) pathogenicity. C) tropism. D) virulence. E) dysbiosis.

Biology & Microbiology