A research laboratory is attempting to collect the content of human red blood cells. The type of solution researchers should use to cause blood cells to lyse (burst) would be

A. hyperosmotic.
B. isosmotic.
C. hypoosmotic.
D. osmotic.


C

Biology & Microbiology

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Which of the following DNA strands is complementary to the DNA sequence 5'–ATCGTACG–3'?

A. 5'–ATGCATGC–3' B. 5'–TAGCTAGC–3' C. 3'–ATGCATGC–5' D. 3'–TAGCATGC–5' E. 3'–CGTACGTA–5'

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According to the figure, which species is considered a pioneer species?

A) Ulva spp. B) Gigartina canaliculata C) Gigartina coulteri D) Gigartina leptorhynchos

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At which stage of meiosis are sister chromatids separated from each other?

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Biology & Microbiology