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Genes

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by

Harvey Buckle

on 24 January 2017

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Transcript of Genes

Genes
25th January 2017
DNA

DNA molecules are large and complicated. They carry information that decides how a living thing looks.
Except for identical twins, each person’s DNA is different. This is why people can be identified using DNA fingerprinting. DNA can be cut up and separated, forming a sort of 'bar code' that is different from one person to the next.

Sexual reproductiom
In sexual reproduction, a male sperm or gamete fuses with a female egg or gamete to produce a new cell. This is called fertilisation. Gametes are produced by a process called meiosis. They contain a single set of chromosomes, whereas body cells contain two sets of chromosomes.
Aim
To know the link between chromosomes, genes and DNA
To know the two different types of body cells
Starter
list TEN things that you can INHERIT from your parents
Genes
Chromosomes are made from DNA. G____s are short sections of DNA. In our bodies, Identical cells are produced by a process called mitosis.
Genes
A gene is a short section of ___A. Each gene makes a different ____ein by choosing the order in which the amino acids must be joined together.
Chromosomes
The cell’s nucleus contains _____osomes made from long DNA mole______.

Starter
Roll your tongue!
Full transcript