Top answers

Biology
GCSE

Explain how Natural Selection occurs?

Random mutations with a certain species genetic pool will lead to variation within the species. These variations can lead to certain organisms adapting to their environment better. The fittest will surviv...

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Answered by Rhea M. Biology tutor
3631 Views

What are the differences between transcription and translation?

Genetic information is stored within DNA in short sections called genes which contain the instructions needed to make a protein. DNA is a very large molecule and cannot exit the nucleus of the cell. Trans...

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Answered by Matthew M. Biology tutor
6122 Views

In DNA, what bonds form between the nitrogenous bases

Hydrogen bonds.

RS
Answered by Rochelle S. Biology tutor
2359 Views

Briefly describe the key differences and similarities between Prokaryotic and Eukaryotic Cells

DifferencesProkaryotes are much smaller than eukaryotic cells. Prokaryotic cells are 0.5-5 microns in diameter compared to eukaryotic cells which are approx 50-100 microns. Another differ...

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Answered by Oliver W. Biology tutor
8986 Views

Explain how you may test a plant specimen for starch?

This can be done via the iodine test- you would use an iodine solution and pipette this unto the plant cutting. For a positive test, the specimen would turn into a blue/ black colour in the presence of io...

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Answered by Isabella M. Biology tutor
2546 Views

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