Which of the following human genetic disorders is caused by a dominant allele?
a. hemophilia
b. sickle cell anemia
c. cystic fibrosis
d. Huntington's disease
Ans: d. Huntington's disease
You might also like to view...
An estimated ________ DNA base pairs comprise the human genome.
A) 32,000 B) 320,000 C) 3.2 million D) 3.2 billion
Four of the five answers are correct statements about endothermic animals. Select the exception
a. They use more energy than ectotherms. b. They are active at a wider range of temperatures than ectotherms. c. They have a higher metabolic rate than ectotherms. d. They have layers of fat to reduce heat loss. e. They adjust their temperature by changing their location.
The enzyme used by HIV that allows it to make DNA from RNA is
a. DNA ligase. b. helicase. c. restriction endonuclease. d. reverse transcriptase. e. cholinesterase.
The anaerobic environment of swamps and marshes is an excellent habitat for methanogens.
a. true b. false