This is a human hereditary disease that is caused by a dominant allele but does not show up in affected individuals until they are in middle age:
A. sickle cell anemia
B. hemophilia
C. Tay-Sachs disease
D. cystic fibrosis
E. Huntington's disease
Answer: E
You might also like to view...
Although Darwin and Wallace understood the central importance of heritability among organisms to
the process of evolution, they could not explain how new variations arose or how they were passed to the next generation.
Indicate whether the statement is true or false.Which of the following statements concerning the peripheral nervous system is false?
a. Spinal nerves lead to and from the spinal cord. b. There are 31 pairs of spinal nerves. c. Cranial nerves lead from the brain directly to the spinal cord. d. Some nerves carry only sensory information. e. Some nerves are both sensory and motor.
Which of the following is not true about anoxygenic photosynthesis?
A. Does not produce oxygen and often produces sulfur granules B. Water is the usual source of electrons for photosynthesis C. Often produces sulfur granules D. Does not produce oxygen
When DNA from two sources is combined into one single piece of DNA, it is known as
A) cloned DNA. B) recombinant DNA. C) a vector. D) a plasmid.