The American kangaroo rat is characteristic of the desert biome
____________________ Indicate whether the statement is true or false.
T
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Mitosis comes from the Greek word "mitos," which means
a. to divide. b. to grow. c. to swell. d. thread. e. to shrink.
A student needs information from the National Institutes of Health, a government agency. Which one of the following endings should he or she look for in the Internet address?
A) edu B) com C) gov D) nih E) org
Select the disorder that best matches each the following statements.
A. This disorder is an autosomal recessive disorder that results in the body's inability to break down lipids. B. This disorder is due to a sex chromosome abnormality probably caused by nondisjunction of sex chromosomes at meiosis. C. This disorder is an autosomal dominant disorder characterized by premature aging of body tissues. D. This disorder is an X-linked recessive trait. E. This disorder is also known as trisomy 21.
The classic Hershey and Chase (1952 ) experiment that offered evidence in support of DNA being the genetic material in bacteriophages made use of which of the following labeled component(s)?
A) oxygen and phosphorus B) nitrogen and oxygen C) phosphorus and sulfur D) tritium E) hydrogen