This topic contains a solution. Click here to go to the answer

Author Question: Which of the following statements about individuals with the HbS allele in the homozygous form is ... (Read 64 times)

littleanan

  • Hero Member
  • *****
  • Posts: 575
Which of the following statements about individuals with the HbS allele in the homozygous form is true?
 
  A. They lack the capacity to digest lactose.
  B. They usually develop fatal cases of sickle-cell anemia.
  C. They rarely develop any form of sickle-cell anemia before reaching reproductive age.
  D. They are usually found in temperate regions of the world.
  E. They always develop fatal cases of sickle-cell anemia late in life.

Question 2

What does gene flow act against?
 
  A. migration
  B. speciation
  C. natural selection
  D. mutations
  E. balanced polymorphisms



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

choc0chan

  • Sr. Member
  • ****
  • Posts: 362
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B





 

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

For a complete list of videos, visit our video library