Author Question: ________ plays a role in determining skin color. A. The HbS allele B. Ultraviolet radiation C. ... (Read 203 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
________ plays a role in determining skin color.
 
  A. The HbS allele
  B. Ultraviolet radiation
  C. Sickle-cell anemia
  D. Lactose intolerance
  E. Lactose tolerance

Question 2

Some populations like the Polynesians, the San, or the people of southern India have phenotypes that do not fit neatly into standard racial categories, which suggests that
 
  A. it is best to classify humans into a large number of racial categories.
  B. phenotypical variation between human populations involves gradual shifts across different geographic zones.
  C. these populations must have originated sometime before the major racial groups originated.
  D. traditional concepts of race need to be reworked so that they are more exclusive.
  E. there has been a lot of gene flow in the time since the origin of the three major human races.



pami445

  • Sr. Member
  • ****
  • Posts: 303
Answer to Question 1

B

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

For a complete list of videos, visit our video library