« previous next »

Author Question: The recessive allele that causes phenylketonuria (PKU) is harmful, except when a (Read 483 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?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Inheritance of an X-linked recessive disorder Inheritance of an X-linked recessive disorder
Part C - Determining genotypes in autosomal recessive pedigrees Pedigree 3 from Part C - Determining genotypes in autosomal recessive pedigrees Pedigree 3 from
Each allele of codominant genes is fully expressed in heterozygotes. Type A blood has A antigens on Each allele of codominant genes is fully expressed in heterozygotes. Type A blood has A antigens on
Pineapples carry harmful insect shell insects, safe to eat? Pineapples carry harmful insect shell insects, safe to eat?
Calculating genotype frequencies from allele frequencies Calculating genotype frequencies from allele frequencies
Examples of Allele Frequencies for Three STR Markers Used in CODIS Examples of Allele Frequencies for Three STR Markers Used in CODIS
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library