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Shtirlitz [24]
3 years ago
13

A eukaryotic gene contains 14 exons. Most of the transcripts from this gene contain all 14 exons, but some contain only 11 exons

. Only the 14-exo mRNA encodes a protein that changes its cellular localization in response to phosphorylation. Which mechanisms for producing complexity are exemplified by this gene? Check All That Apply A. DNA-level comblnatorial amplification B. pseudogene formation C. gene duplication and divergence D. alternative splicing E. posttranslational modification
Biology
1 answer:
WARRIOR [948]3 years ago
8 0

Answer:

D. Alternative splicing is the mechanism that produce complexity in the genes by splicing some of the protein coding part (exons) of a genes

Explanation:

There are certain splicing enhancers sites present in Exons which facilitiates the binding of RNA binding protein specifically SR protein family rich in Serine and Arginine residues. This SR protein will help in splicing of exons.

The significance of this type of mechanism is the ability of a cell to produce an isoform of protein which have retain their function.

This mechanism also help is diversity or in short in evolution.

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In E. coli protein synthesis, the initiation complex contains
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The correct answer will be option-C.

Explanation:

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How deep of a diffusion does is meet to needs of living cells?
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Diffusion is the net movement of anything (for example, atom, ions, molecules) from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration.

The concept of diffusion is widely used in many fields, including physics (particle diffusion), chemistry, biology, sociology, economics, and finance (diffusion of people, ideas, and price values). The central idea of diffusion, however, is common to all of these: an object (for example, atom, idea, etc.) undergoing diffusion spreads out from a point or location at which there is a higher concentration of that object.

A gradient is the change in the value of a quantity, for example, concentration, pressure, or temperature with the change in another variable, usually distance. A change in concentration over a distance is called a concentration gradient, a change in pressure over a distance is called a pressure gradient, and a change in temperature over a distance is called a temperature gradient.

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