Practice Questions

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#Question id: 14829

A new drug is developed that inhibits formation of the flagellar filament by impairing production of the protein flagellin. Is this going to be a good drug?

#Unit 2. Cellular Organization

Potentially-it would definitely only impair bacteria, but wouldn't matter for the ones that don't use a flagellum to move around.
Potentially-if it could be shown that it also didn't impair the production of the eukaryotic flagellum.
No-our eukaryotic cells depend on flagella to move around in our body, and this would impair that function.
No-bacterial flagella are produced using microtubules, not the protein flagellin. This drug would be useless in eliminating bacteria.

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#Question id: 17217

#Unit 7. System Physiology – Animal

Which of the following stress affects the body's structure and function Such as diseases, mobility problems?

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#Question id: 5695

#Unit 8. Inheritance Biology

Triploids are usually autopolyploids. They arise spontaneously in nature, but they can be constructed by geneticists from the cross of a 4n (tetraploid) and a 2n (diploid). Triploids are characteristically sterile due to

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#Question id: 196

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is correct about S-adenosylmethionine (SAM) is formed from the amino acid methionine so that

A) methyl groups can be formed.

B) it can react with nucleophilic acceptors.

C) it can donate methyl groups in many biosynthetic reactions.

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#Question id: 428

#Unit 1. Molecules and their Interaction Relevant to Biology

The most biochemically complex organisms are ________.

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