A karyotype of an individual with mild mental retardation shows three copies of the X chromosome. If this individual decides to have children, how is her chromosomal abnormality likely to affect her offspring?

a. All of her children will inherit an extra copy of the X chromosome.
b. Any female children have a 75 percent chance of inheriting an extra copy of an
X chromosome.
c. She will be unable to produce male children.
d. Half of her eggs will contain an extra copy of the X chromosome.


d. Half of her eggs will contain an extra copy of the X chromosome.

Biology & Microbiology

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Compared to plants from other environments, the cells of many desert plants contain high concentrations of solutes

This helps them survive in their arid surroundings because the high solute concentrations create relatively _____, which help reduce water loss. A) low solute potentials B) high pressure potentials C) low pressure potentials D) high solute potentials

Biology & Microbiology

Lost traps to collect shellfish have a large impact on

a. marine mammals. b. marine birds. c. marine turtles. d. lobster and crabs. e. plankton.

Biology & Microbiology

If the nucleotide sequence in a DNA template strand is GGCTTAACCATT; the complementary mRNA strand will

have the sequence ____________________. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

In the interaction of two types of organisms in a habitat, one organism benefits from its interaction with the other, but the other organism suffers. What is the name for this interaction?

a) destructive b) commensalism c) parasitism d) selective e) dependent

Biology & Microbiology