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Biology
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What are the differences between DNA and RNA

There are 4 main differences, the first being that DNA is in a double helix structure much like two pieces of string wrapped together. RNA, on the other hand, is single-stranded. The second difference is ...

Answered by Arif A. Biology tutor
1942 Views

Discuss the ethical issues of IVF in humans

There are several arguments for having in vitro fertilisation. Firstly, it allows people who couldn't otherwise have children to start a family. Also the embryos that are used for IVF, if there are signs ...

Answered by Elsa C. Biology tutor
2367 Views

Outline the four levels of protein structure.

Primary structure is the number as well as the sequence/order of amino acids in a polypeptideSecondary structures are regularly repeating structures which can either be beta-pleated sheets or alpha-helice...

Answered by Ethan P. Biology tutor
1739 Views

Explain the first stages of aerobic respiration that occur before the Krebs cycle.

Aerobic respiration is a controlled release of energy from organic compounds to produce ATP with the use of oxygen. It occurs in several stages:
Glycolysis starts with phospho...

Answered by Agata K. Biology tutor
2143 Views

Briefly outline the process of translation in animal cells.

Translation is the process by which polypeptide chains are built, subsequently forming proteins destined to perform a variety of functions in the body. It involves 3 main steps: i...

Answered by Lucile S. Biology tutor
3948 Views

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