_ are sequences that are removed from primary transcripts, and _ are sequences that remain present in mature mRNA molecules.

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#Question id: 8920

#XL - R Botany

Almost all of the major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of the

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#Question id: 2669

#XL - T Zoology

what is an operon?

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#Question id: 409

#XL - Q Biochemistry

For the following reaction,DG'° = +29.7 kJ/mol. L-Malate + NAD+ -> oxaloacetate + NADH + H+ The reaction as written:

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#Question id: 186

#XL - P Chemistry

What will be the net charge on given peptide at pH 5?

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#Question id: 14828

#XL - S Microbiology

Pili are usually longer than fimbriae and number only one or two per cell. Pili are involved in motility and DNA transfer. The type of motility, called 

1. Extrusion

2. Somersaulting

3. Twitching motility 

4. Gliding motility

Which combination from the following is correct?