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What is DNA replication and how does the cell cycle regulate cell division?

DNA replication is the production of two identical DNA strands from one original DNA molecule and is a nearly error-free process that occurs in all living organisms. This is because, in order for a cell to d...
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Answered by Azeem A. • Biology tutor
11446 Views

What are the characteristics of a single-blind study?

They are experiments in which the subjects are unaware of whether they are recieving a real or fake drug treatment. As a result, they help reduce bias and placebo effects.
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Answered by Seanan M. • Psychology tutor
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What is the difference between a gene and an allele?

A gene is a section of DNA or RNA that codes for a protein. Alleles are different versions of the gene. For example, if a gene coding for a particular enzyme mutated, then there would be two alleles of the g...
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Answered by Ellen P. • Biology tutor
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How do I revise novels my English Literature GCSE exam?

Firstly, make sure that you understand and can remember the plot of the book. If you have not made summarising notes throughout the year, do not worry. Although your personal notes are better as they are mor...
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18956 Views

Why can longitudinal studies be problematic?

Longitudinal studies are those which are carried out over a long period of time. Longitudinal studies can be problematic because, over time, participants may drop out. This is an issue because it leaves the ...
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Answered by Hannah N. • Psychology tutor
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