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Module 4 Notes

Classical Genetics Meiosis Fertilisation Monohybrid cross Sex Determination Sex-Linkage Multiple Alleles Dihybrid Crosses Population Genetics Variation Natural Selection Speciation

http://www.mrothery.co.uk/module4/webnotes/Mod4Notes.htm - 108 kB - Mar 21, 2007
[Module%204%20Notes.doc]

Genetics Meiosis and Fertilisation The principal events associated with meiosis, to include: pairing by homologous chromosomes; formation of bivalents; chiasma formation and exchange between chromatids;

http://www.mrothery.co.uk/module4/Module%204%20Notes.doc - 6 MB - Mar 21, 2007
[blockbusters%20for%20printing.doc]

T Testosterone M Meiosis Reduction division. L Lock & Key I Induced fit Letter Word Question E Enzyme Protein molecule that have catalytis properties A Active site The region of an enzymes

http://www.mrothery.co.uk/teaching_resources/blockbusters%20for%20printing.doc - 123 kB - Mar 21, 2007
[doc14861.doc]

portions between two homologous chromosomes during meiosis The outward expression of a genotype What is a phenotype? Clones What do you call genetically identical cells? Dihybrid inheritance What is

http://www.mrothery.co.uk/teaching_resources/doc14861.doc - 32 kB - Mar 21, 2007
answers

Meiosis chromosome number is halved genetic variation / shuffling occurs

http://www.mrothery.co.uk/cellcycleandrepro/meiosisa.html - 290 B - Mar 21, 2007
keyfacts

Gametes are produced by meiosis. In this type of cell division each of the cells formed contains only one of each pair of homologous chromosomes, and therefore only one copy of each gene. Cells with

http://www.mrothery.co.uk/module2/keyfacts.htm - 14 kB - Mar 21, 2007
[handout%20gcse%20Biology%20definitions.doc]

Replication Exact copying of DNA. Meiosis Cell division, which reduces (halves) the number of chromosomes. Meiosis separates the maternal and paternal chromosomes in a cell to produce four cells with

http://www.mrothery.co.uk/gcsebiol/handout%20gcse%20Biology%20definitions.doc - 51 kB - Mar 21, 2007
[AQA-5461-WRE-Jan01.pdf]

but are not expected to know the stages of meiosis. Thus it was disturbing to find manycandidates stating that chromosomes pair during prophase of mitosis. There was a tendency to confuse words with similar

http://www.mrothery.co.uk/downloads/AQA-5461-WRE-Jan01.pdf - 140 kB - Mar 21, 2007
question

a) Mark with an X on the diagram where meiosis takes place in this life cycle. 1) b) Explain i) why the zoospores labelled X on the diagram all have the same genotype (genetic constitution)

http://www.mrothery.co.uk/cellcycleandrepro/lifecycleq2.htm - 11 kB - Mar 21, 2007
keyfactssexualreproduction

Gametes are produced by meiosis. In this type of cell division each of the cells formed contains only one of each pair of homologous chromosomes, and therefore only one copy of each gene. Cells with

http://www.mrothery.co.uk/module2/keyfactssexualreproduction.htm - 4 kB - Mar 21, 2007