« previous next »

Author Question: The recessive allele that causes phenylketonuria (PKU) is harmful, except when a (Read 507 times)

Garrulous

  • Hero Member
  • *****
  • Posts: 686
on: Jul 9, 2013
The recessive allele that causes phenylketonuria (PKU) is harmful, except when an infant's diet lacks the amino acid phenylalanine. What maintains the presence of this harmful allele in a population's gene pool?
A) heterozygote advantage
B) stabilizing selection
C) diploidy
D) balancing selection


Hawke

  • Hero Member
  • *****
  • Posts: 679
Reply #1 on: Jul 10, 2013
Hello

C is the answer.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

The chromosomal basis of allele segregation. The chromosomal basis of allele segregation.
How genes produce proteins that determine traits in a simple dominant-recessive relationship. How genes produce proteins that determine traits in a simple dominant-recessive relationship.
Tailless, a recessive lethal allele in cats Tailless, a recessive lethal allele in cats
The frequency distribution of the allele in Southeast Asia and the Pacific Islands The frequency distribution of the allele in Southeast Asia and the Pacific Islands
Genetic drift of an allele frequency Genetic drift of an allele frequency
X-linked recessive inheritance of red-green color blindness in a family X-linked recessive inheritance of red-green color blindness in a family
Video: Exocytosis - secretion

For a complete list of videos, visit our video library