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Describe the processes of obtaining desired genes and their subsequent transfer into the cells of organisms.

In answering this question, it is important that the student outlines the steps and tools involved in the process (for learning purposes it is easier to learn the numerical steps, however, it is important th...
NG
Answered by Niamh G. • Biology tutor
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What is the bonding in a DNA double helix

Adenine, Guanine, Cytosine, Thymine.A binds to T. “A tea for 2” as there are two hydrogen bonds linking adenine on one DNA strand to thymine on another DNA strandc binds to G. 3 hydrogen bonds between them
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Answered by Jim O. • Biology tutor
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Explain how certain molecules or ions increase the activity of enzymes.

Cofactors and coenzymes bind to an enzyme's allosteric site. This causes interactions between hydrogen bonds in the tertiary structure of the protein to change- altering its structure.The change of structure...
BC
Answered by Ben C. • Biology tutor
10748 Views

Explain how the small intestine is adapted to its absorptive function (4)

The small intestine has many adaptions that help effective absorption to take place. Firstly it is very long, meaning there is a lot of time for nutrients to be absorbed. Secondly it has villi which are fing...
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Answered by Anastasia U. • Biology tutor
49903 Views

How does pH affect the rate of reaction on an enzyme?

Optimum pH for enzymes in the human body is 6. It's a bell shaped Graph. At Higher or lower pH, the alkalinity/acidity denatures the enzyme, which changes the shape of the active site, and so the substrate c...
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Answered by Max H. • Biology tutor
11949 Views