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What is the difference between gene transcription and gene translation?

Both of these are key steps in gene expression to obtain proteins. Transcription occurs first. It is the process, happening in the nucleus, where a specific segment of DNA is copied into RNA to form messenge...
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Answered by Madeleine G. • Biology tutor
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What are the properties of water?

This is part of the chemistry of life chapter. Its important to Biology because : Water is the medium of life and biology is the study of life. Water molecules are polar. this means the molecule is charged O...
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Answered by Shirleen B. • Biology tutor
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Enzymes known as endopeptidases aid digestion of proteins in the small intestine. why do they only bind to amino acids and not other foods ingested?

Model Answer: this is because enzymes are a protein with a specific tertiary structure which have an active site that is complementary to the substrate (in this case the amino acids of a protein) ultimately ...
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Answered by Charlotte B. • Biology tutor
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What are the arguments for the endosymbiotic theory?

There are several facts that could prove that mitochondria and plastids - eukaryotic organella descend from prokaryotic organisms. One of the arguments is that the metioned organella posses their own DNA to ...
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Answered by Dorota D. • Biology tutor
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Describe how the human body can prevent the entry of organisms that cause disease. Include physical barriers and chemical defences in your answer.

Physical barriers: skin to prevent entry of organisms into the bloodstream cilia lining the nasal passages / bronchi to prevent entry to lungs / remove mucus scabs to prevent entry of microorganisms into the...
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Answered by Khadija M. • Biology tutor
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