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

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#Question id: 12027

#7. System Physiology – Animal

If you place a small piece of a cracker on your tongue, what would you expect to happen?

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#Question id: 4741

#8. Inheritance Biology

The F2 progeny from a particular cross exhibit a modified dihybrid ratio of 9 : 7 (instead of 9 : 3 : 3 : 1). What phenotypic ratio would be expected from a testcross of the F1?

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#Question id: 9166

#9. Diversity of Life Forms

If global warming continues at its present rate, which biomes will likely take the place of the coniferous forest (taiga)?

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#Question id: 376

#1. Molecules and their Interaction Relevant to Biology

Phosphoric acid is tribasic, with pKa of 2.14, 6.86 and 12.4. The ionic form that predominates at pH 3.2 is

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#Question id: 5078

#5. Developmental Biology

A human blastomere is: