The synthesis of new DNA requires the prior existence of oligonucleotides to serve as primers. On Earth, these primers are small RNA molecules. This latter observation is evidence in support of the hypothesized existence of

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#Question id: 19611

#XL - P Chemistry

During change of O2 to O₂^2- ion, the electron adds on which of the following orbitals?

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#Question id: 5692

#XL - T Zoology

Aneuploids can be produced several ways except

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#Question id: 3010

#XL - S Microbiology

Endospores

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#Question id: 19681

#XL - P Chemistry

By reacting with which of the following, primary amines can be separated from secondary and tertiary amines?

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#Question id: 8919

#XL - S Microbiology

The last common ancestor of all animals was probably a