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Biology
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whats the difference between meiosis and mitosis

Meiosis and mitosis are both forms of cell division. For mitosis, the cell divides into two cells. For meiosis, the cell splits twice, forming four cells. The cells produced are called daughter cells, and...

EL
Answered by Ellen L. Biology tutor
5040 Views

Describe the differences between DNA and RNA. (3 marks)

Any 3 from:DNA is double stranded, whereas RNA is single strandedDNA consists of Deoxyribose sugar, whereas RNA is made from Ribose sugarThymine can be found in DNA, whereas it is replaced by Uracil in RN...

Answered by Biology tutor
2651 Views

Describe the process in which DNA replication occurs (6 marks)

Firstly, the enzyme DNA helicase separates the two strands in DNA by breaking the hydrogen bonds between them. Both of the two strands then act as templates to which free nucleotides attach to. This attac...

Answered by Biology tutor
6295 Views

Explain how a reflex arc works

A reflex action is the bodies automatic and rapid response to a stimulus which we carry out without thinking. Due to it being a rapid response it doesn't involve the brain and follows a path called the re...

FQ
Answered by Freyja Q. Biology tutor
4062 Views

Why is water cohesive?

Cohesion is the attraction of molecules of the same type.Water is cohesive because it is dipolar therefore the positive electrons from the 2 hydrogens are pulled towards the oxygen end making the oxygen e...

UO
Answered by Ugo O. Biology tutor
3513 Views

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