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Describe the structures of DNA and RNA.

DNA (deoxyribose nucleic acid) is made of up two strands of nucleotides that are twisted together to make a double helix (twisted structure). Each nucleotide consists of nitrogenous bases and a backbone of d...
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Answered by Amir F. • Biology tutor
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Describe the process of spermatogenesis leading to the production of four sperm cells in a human male.

the Process occurs in the seminiferous tubules and is supported by sertoli cells which provide the nutrients and energy for the division.Spermatogonia grow and enlarge until big enough to divide, once they a...
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Answered by Melanie B. • Biology tutor
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What is the shape of a DNA molecule

Double helix with a sugar and phosphate backbone as well as complimentary base pairs
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Exam different views about animal rights.

Traditional understandings of the sentience and rights of animals (derived from the Bible) have been seriously undermined by recent ethical studies by people like Bentham and Peter Singer. While there have b...
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Differentiate with respect to x: (x^2+5)^3

There are two methods for solving this question. Firstly, the inspection method, and then the chain rule method.Using the inspection method, we differentiate the outer function first. Multiply the function b...
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Answered by Matthew P. • Maths tutor
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