An autosomal recessive disorder

a. requires that only one parent be a carrier.
b. displays its symptoms only in heterozygotes.
c. is more frequent in males than females.
d. can appear only in children of parents who both carry the gene.
e. is dominant in females.


D

Biology & Microbiology

You might also like to view...

The drug Fen-Phen

a. is really two drugs, fenfluramine and phentermine. b. was never approved by the FDA in its combination form. c. was effective in reducing weight compared to a placebo group. d. is no longer in use because the Fen component has been banned. e. All of the above

Biology & Microbiology

Genes are physically located within ______.

A. chromosomes B. centrosomes C. kinetochores D. microtubules

Biology & Microbiology

An energy drink that is marketed towards athletes promises to boost endurance, decrease muscle fatigue, and promote recovery. It contains caffeine, B vitamins, taurine, malic acid, and phenylalanine. Is this claim plausible?

A. No. These substances have not been shown to alter human physiology in any way. B. Yes. These substances have been shown to have benefits including increased athletic performance, increased energy, and the production of proteins in the body.

Biology & Microbiology

Antibodies elicit the production of antigens

Indicate whether the statement is true or false

Biology & Microbiology