In the Ames test, bacteria can mutate, even if they cannot grow.
A) True
B) False
B) False
Feedback: This statement is false because mutation involves the replication of DNA, DNA is replicated when bacteria grow/divide.
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What is a potential outcome of drinking alcohol? a. Inflammation of the liver
b. Scarring of liver tissue. c. All are potential outcomes of drinking alcohol. d. Accumulation of fat in body tissues. e. Cirrhosis of liver tissue.
The systems that coordinate communication are
A. skeletal and muscular. B. circulatory and respiratory. C. nervous and endocrine. D. digestive and circulatory. E. urinary and immune.
The longer this structure is the greater is an animal's capacity to conserve water and to concentrate
solutes for excretion in the urine. a. Bowman's capsule b. loop of Henle c. proximal tubule d. ureter e. urethra
Which of the following can only be viewed by electron microscopy?
A) frog eggs B) DNA C) nuclei D) mitochondria E) prokaryotes