Red tides and extensive fish kills are caused by population blooms of ____.

A. Euglena
B. specific dinoflagellates
C. diatoms
D. Plasmodium
E. fish


Answer: B

Biology & Microbiology

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The amount of air that remains in the lungs after a forced exhalation is called _________________

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Nondisjunction in humans can result in a person with 

A. twenty-two pairs of autosomes, an X chromosome, and a Y chromosome. B. twenty-two pairs of autosomes and two X chromosomes. C. forty-seven chromosomes. D. forty-six chromosomes.

Biology & Microbiology

Gene therapy used to introduce foreign DNA into cells is done for what purpose?

What will be an ideal response?

Biology & Microbiology

How do different strains of E. coli can reveal different linkage arrangements of genes in Hfr crosses?

A) In different Hfr strains, different genes will be transferred based on where the centromere resides. B) Different strains may have different F factors and therefore different initiation points for chromosome transfer. C) They do not. All Hfr strains are identical. D) Hfr strains will demonstrate different areas of recombination, due to dominance and recessiveness of genes. E) In different Hfr strains, genes can be in different order on the chromosome.

Biology & Microbiology