A single strand of ____ ribonucleotides forms four double stranded stem regions by pairing the bases.

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#Question id: 4949

#XL - S Microbiology

What probably accounts for the switch to DNA-based genetic systems during the evolution of life on Earth?

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#Question id: 20219

#XL - P Chemistry

Which of the following is the correct order for lone pair and bonding pair electrons ? Lp = Lone pair and Bp = Bonding pair

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#Question id: 12064

#XL - S Microbiology

Which taxon of eukaryotic organisms is thought to be directly ancestral to the plant kingdom?

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#Question id: 19783

#XL - P Chemistry

The correct Schrodinger’s wave equation for an electron with E as total energy and V as potential energy is

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#Question id: 14972

#XL - S Microbiology

Although O side chains are readily recognized by host antibodies, gram negative bacteria may thwart host defenses by