Explain the tetranucleotide hypothesis and its relationship to the substance referred to as nuclein

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In the 1860s, Friedrich Miescher isolated an acidic substance (called nuclein) from cell nuclei, which turned out to be deoxyribonucleic acid. Although DNA was found to be present in chromosomes, it fell out of favor as the presumptive genetic material because of the incorrect hypothesis that DNA was a molecule of repeating units of four nucleotides, called the tetranucleotide hypothesis.

Biology & Microbiology

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if a pea plant is heterozygous for yellow seeds (Gg), the gametes will have which of the following allele(s)?

A. G only B. G or g C. g only D. Gg E. GGgg

Biology & Microbiology

The trade winds in the zone from 0 to 30 degrees

north latitude are generally from the a. north. b. northwest. c. northeast. d. southeast. e. southwest.

Biology & Microbiology

G1 phase

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Biology & Microbiology