The primary structure of DNA and RNA proceeds in which direction?

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#Question id: 19581

#XL - P Chemistry

Producer gas is defined as which of the following mixtures?

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#Question id: 1743

#XL - Q Biochemistry

The main costimulatory signal for activation of resting T-cells is provided by ligation of:

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#Question id: 4951

#XL - S Microbiology

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: 1023

#XL - T Zoology

Which amino acid(s) is/are found only in the cell walls of bacteria?

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#Question id: 5535

#XL - T Zoology

What type of animal forms a trophoblast for the duration of its early development?