Author Question: Dominant alleles a. usually cause the underproduction of an enzyme. b. always produce the most ... (Read 82 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
Dominant alleles
 
  a. usually cause the underproduction of an enzyme.
  b. always produce the most desirable phenotype.
  c. can mask the expression of other alleles at the same locus.
  d. are always the most common allele in a population.
  e. were discovered by Charles Darwin.

Question 2

Two people (BOTH heterozygotes) are able to taste a chemical substance called PTC. The ability to taste PTC is caused by a dominant allele (T). The inability to taste PTC is caused by a recessive allele (t). What proportion of their children would be expected to have the tt genotype?
 
  a. 3/4
  b. 1/2
  c. All
  d. 1/4
  e. 2/3



tennis14576

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

C

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

For a complete list of videos, visit our video library