CB3 Genetics- SPECIFICATION

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3.3 Explain the role of meiotic cell division, including the production of four daughter cells, each with half the number of chromosomes, and that this results in the formation of genetically different haploid gametes

 The stages of meiosis are not required

3.4 Describe DNA as a polymer made up of:

a two strands coiled to form a double helix

b strands linked by a series of complementary base pairs joined together by weak hydrogen bonds

c nucleotides that consist of a sugar and phosphate group with one of the four different bases attached to the sugar

3.5 Describe the genome as the entire DNA of an organism and a gene as a section of a DNA molecule that codes for a specific protein

3.6 Explain…

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