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Genome & Genome Mutations (Comparison (Pig= 19 chromosomes, Genome…
Genome & Genome Mutations
Genome Size
Humans= 3 billion bp
Simple Multicellular= 100m bp
Simple Eukaryote= 50m bp
1 million bp = min size
Level of complexity=larger genome
Can be filled with 'junk' DNA= makes it v. large
Eukaryote Genome
Centromere= middle (important in meiosis)
Long arm (q)
Is comprised of linear chromosomes (coloured body)
Short arm (p)
(p for petite)
Humans= range of sizes
Chromosome 1 - largest @ 249 million bp
Chromosome 21= Smallest @ 48million bp
Numbered due to size
Changes to the Genome
Fission
Fusion
Rearrangement
Comparison
Pig
= 19 chromosomes, Genome size =2.8 Gb :
Cat
= 19 chromosomes, Genome size= 2.7 Gb
Mouse
= 20 chromosomes, Genome size 2.1 Gb
Human= 23 chromosomes, Genome size=3.1Gb
Chimp
= 24 chromosomes, Genome size= 3.3 Gb
Sheep
= 27 Chromosomes, Genome size=2.6 Gb
Cow
= 30 chromosomes, Genome size= 2.9 Gb
Horse
= 32 chromosomes, Genome size=2.7 Gb
Dog
= 39 chromosomes, Genetic size= 2.4 Gb