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Misha Larkins [42]
3 years ago
7

How does rough er differ from smooth er in structure and function

Biology
1 answer:
emmasim [6.3K]3 years ago
5 0
<span>Rough ER is called rough because it has ribosomes attached to its surface. The double membranes of smooth and rough ER form sacs called cisternae. Protein molecules are synthesized and collected in the cisternal space/lumen. When enough proteins have been synthesized, they collect and are pinched off in vesicles.</span>
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15. A bug flies into a car's windshield. Describe the force of the windshield to the bug and the force
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Both the force of windshield on the bug and that of the bug on the windshield are equal but in opposite direction.

<u>EXPLANATION: </u>

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2 years ago
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In many animals, height is an example of a polygenic trait. Which types of natural selection can affect polygenic traits? I. dir
Marat540 [252]

The question is incomplete as it does not have the options which are:

I. only

I. and II. only

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I, II, and III.

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I, II, and III.

Explanation:

The mechanism of natural selection can be explained for the trait which is determined by one gene but the traits which can be determined by more than one gene like height (polygenic trait), the selection becomes very complex.

The natural selection can be explained by the phenotype produced in a population and that depends on the genes.  The polygenic trait shows the variation in the population, therefore, it is impossible to predict only one mechanism and therefore all types of natural selection occurs on a population.

Thus,  I, II, and III are correct.

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