Top answers

Biology
A Level

What are the differences between DNA and RNA?

1. DNA is double-stranded in the form of a double helix, whereas RNA is much more commonly found in single-stranded form.

2. The pentose (5 carbon) sugar found in DNA is deoxyribose, wher...

BS
Answered by Beth S. Biology tutor
3925 Views

Describe the process of transcription

Transcription is the process of transcribing the DNA code into another type of code or message - mRNA (messenger RNA). 

An enzyme called RNA polymerase binds to ...

BS
Answered by Beth S. Biology tutor
42859 Views

What is an enzyme?

Enzymes are proteins that are folded into specific shapes to allow for certain 'substrates', the other molecule involved, to bind. This area of binding is known as the 'active site', as it's where all ...

SM
Answered by Shauna M. Biology tutor
4770 Views

Describe the structure of a protein.

Proteins are made up of long chains of amino acids (polypeptides) joined together by condensation reaction.Primary structureThe proteins primary structure is the sequence and order of ami...

EF
Answered by Eilidh F. Biology tutor
7331 Views

Describe 3 differences between mitosis and meiosis

Mitosis consists of one stage whereas meiosis consists of two stages.

Mitosis produces diploid cells (46 chromosomes) whereas meiosis produces haploid cells (23 chromosomes).

<...

RC
Answered by Runzhi C. Biology tutor
279082 Views

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