« previous next »

Author Question: The recessive allele that causes phenylketonuria (PKU) is harmful, except when a (Read 496 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 women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Clinal maps of ABO allele distributions in the indigenous populations of the world. Clinal maps of ABO allele distributions in the indigenous populations of the world.
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
A common autosomal recessive allele can produce a pedigree that looks like an autosomal dominant tra A common autosomal recessive allele can produce a pedigree that looks like an autosomal dominant tra
The general description of allele and genotype frequencies under Hardy–Weinberg assumptions The general description of allele and genotype frequencies under Hardy–Weinberg assumptions
Autosomal Recessive Inheritance Autosomal Recessive Inheritance
A Model of Directional Selection against a Recessive Lethal Allele A Model of Directional Selection against a Recessive Lethal Allele
Video: DNA Replication

For a complete list of videos, visit our video library