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How can a mutation in a sequence of DNA affect the function of a protein?

Firstly, it is important to recap how DNA codes for synthesis of proteins. mRNA is formed from complementary base pairing to the template strand of DNA in a process called transcription. Every 3 bases within...
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Answered by Ben L. • Biology tutor
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Explain how evolution by natural selection works.

Variation among genes codes for different phenotypes in a population. Individuals that have a phenotype that is better suited to their environment are more able to survive and reproduce, and therefore, have ...
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Answered by Eleanor S. • Biology tutor
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Describe how the resting potential is maintained in a neurone, and what this resting potential value is.

The resting potential of a neurone is -70 mV, which means that it's more negative in the cytoplasm than in the tissue fluid. In the membrane there are sodium-potassium pumps which work using active transport...
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What occurs during the metaphase stage of mitosis?

Metaphase is the third stage of mitosis, following Interphase and Prophase. During interphase, the cell replicates its organelles and centrosomes and synthesis of specific proteins for mitosis occurs. During...
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Answered by Josephine M. • Biology tutor
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In regards to kidney function, describe the processes involved in an individual who is well hydrated.

The water potential of blood rises. This is detected by osmoreceptors in the hypothalamus in the brain. This detection stimulates less ADH to be released. ADH is Antidiuretic Hormone. It’s role is to alter m...
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Answered by Grace T. • Biology tutor
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