Ocogenes
What will be an ideal response?
activate other genes that increase cell division
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A ______ making too much prolactin would result in the overproduction of milk in the mammary glands.
a. thyroid gland b. pancreas c. parathyroid gland d. pituitary gland
Answer the following statements true (T) or false (F)
1. The complement strands of DNA have the same exact nitrogen base sequence, providing the semiconservative replication needed by cells. 2. Any change in a cell's DNA sequence is a mutation. 3. Change in a cell's DNA sequence is a common occurrence in the process of replication. 4. Each newly replicated molecule of DNA contains one conserved strand from the original DNA molecule. 5. A replicated chromosome consists of two sister chromatids.
The symptoms and signs of Friedreich's ataxia
include all of the following EXCEPT a. loss of coordination. b. iron buildup in mitochondria. c. serious heart problems. d. liver failure. e. weak muscles
Which of the following is a neurotransmitter that triggers a contraction of a voluntary muscle?
A) acetylcholine B) action potential C) synapse D) sodium