Which of the following is a unique characteristic of oysters and mussels?

a. secreting nacre around foreign particles
b. having tusk shells buried in the sand
c. using beak-like jaws to catch prey
d. living inside multi-chambered shells


a. secreting nacre around foreign particles

Biology & Microbiology

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The nucleolus is the site of:  

A.  protein synthesis. B.  uncoiling and unraveling of chromosomes. C.  ribosome assembly. D.  lipid synthesis. E.  chromosome replication.

Biology & Microbiology

If a population was in Hardy-Weinberg equilibrium, then ____ would occur in that population.

A. directional selection B. an increase of recessive alleles C. no evolutionary changes D. assortive mating E. natural selection

Biology & Microbiology

Which of the following mutations will not alter the amount of genetic material on the chromosomes?

A. duplication B. inversion C. simple translocation D. deficiency E. inversion and simple translocation

Biology & Microbiology

You isolate a plant that expresses a phytochrome mutant that is always in the

Pfr form. You expect these plants will germinate A. not at all. B. regardless of the light conditions. C. later than normal plants. D. similarly to normal plants.

Biology & Microbiology