Which characteristic is NOT associated with red muscle fibers?
a. myoglobin
b. fast fibers
c. many blood vessels
d. make up postural muscles
e. large amounts of oxygen
ANSWER: b
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Which may result in Gram-positive bacteria appearing to be Gram-negative?
A. Decolorizing too long B. Decolorizing too short C. Using old cultures D. Using young cultures E. Decolorizing too long AND using old cultures
Answer the following statements true (T) or false (F)
1. Studies by Avery, MacLeod, and McCarty with different strains of bacteria and those by Hershey and Chase with T2 bacteriophage determined that proteins are highly complex molecules that form the genetic material for bacteria and viruses. 2. A strand of DNA is composed of nucleotide bases, sulfate groups, and sugars. 3. When considering the complexity of genetic material, multiple genes are found within a chromosome. 4. If there is 28% adenine, then there must be 28% cytosine for the DNA composition of a particular organism. 5. DNA is a double helix structure whose strands are held together by hydrogen bonds with A to T and C to G base pairing.
Which of these would be an example of asexual reproduction?
1.The hydra.
2.The fish.
3.The elephant.
4.All are examples of sexual reproduction.
What effect do high frequency sounds tend to have on the ear?
A. Only move the tectorial membrane B. Move only the apex portion of the basilar membrane C. Move only the portion of the basilar membrane between the basal portion and the apex D. Move only the basal portion of the basilar membrane E. Displace the whole length of the basilar membrane with a maximum near the apex