In the accompanying figure, the structure labeled “H” is a ____
a. muscle fiber
b. sarcoplasmic reticulum
c. mitochondria
d. myofibril
e. Z line
ANSWER: e
Biology & Microbiology
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Karyogamy produces a _____.
a) diploid zygote b) haploid zygote c) spores d) mycelium e) hypha
Biology & Microbiology
Proteins assist the human body in which of the following ways?
A. chemical signaling B. fighting off infections C. chemical reactions D. all of the above
Biology & Microbiology
In gel electrophoresis, DNA molecules move toward the ________ electrode because they have an overall ________ charge.
A. negative; negative B. positive; positive C. negative; positive D. positive; negative E. negative and positive; neutral
Biology & Microbiology
Proteins are long chains or polymers made up of
A. nucleotides B. carbohydrates C. amino acids D. lipids
Biology & Microbiology