Which statement is true?
1.A cell placed in an isotonic solution will swell.
2.A cell placed in a hypotonic solution will swell.
3.A cell placed in a hypotonic solution will shrink.
4.A cell placed in a hypertonic solution will remain the same size.
5.A cell placed in a hypotonic solution will remain the same size.
2
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Using the table above, determine which age class year would hurt the population growth most if it were wiped out by disease
A) age class year 1 B) age class year 2 C) age class year 3 D) age class year 4 E) age class year 5
The head of a sperm contains the
A) cell membrane. B) cytoskeleton. C) DNA. D) testosterone.
An original section of DNA has the base sequence AGCGTTACCGT. A mutation in this DNA strand results in the base sequence AGGCGTTACCGT. This change represents _____
A) a missense mutation B) a point mutation C) a silent mutation D) frameshift mutation
Viral cultivation is used for
A. observing the effects of viral infection on host cells. B. studying the viral life cycle within host cells. C. diagnosis of viral infections. D. preparation of vaccines. E. producing adequate numbers of viruses for research purposes. F. All of these choices are correct.