Top answers

Biology
A Level

What is division of labour within a cell?

'Division of labour' is a term that describes the specialised functions of cell organelles which come together to ensure the cell is capable of surviving as well as performing it's role in the body. F...

BP
Answered by Ben P. Biology tutor
100339 Views

Describe the structure of the cell membrane.

The cell membrane is a fluid matrix made of a phospholipid bilayer. Each lipid molecule has a hydrophilic, phosphorylated "head" and a hydrophobic, fatty acid "tail". The hydrophob...

SN
Answered by Srishti N. Biology tutor
41503 Views

What's the difference between genotype and phenotype?

The genotype of an organism is the alleles it has. while the phenotype is the characteristics the alleles produce.

 

For examples the alleles for hair colour could be BB for brown hair...

LG
Answered by Lauren G. Biology tutor
9548 Views

What are gene mutations?

A mutation is any change to the base sequence of DNA.

The different types of mutations that can occur include:

Subsitution - this is where one base is swapped for another

Delet...

LG
Answered by Lauren G. Biology tutor
5501 Views

What is endosymbiosis and how does it relate to mitochondria?

Endosymbiosis is where two organisms live together, one inside the other: endo=in, sym=together and biosis=living.

AH
Answered by Aidan H. Biology tutor
4897 Views

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