Biology lecture 6

What Are Mutations? ,[object Object],[object Object],[object Object]

Are Mutations Helpful or Harmful? ,[object Object],[object Object]

Types of mutations ,[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Change in genotype ,[object Object],[object Object],[object Object]

Chromosome Mutations ,[object Object],[object Object],[object Object]

Chromosome Mutations ,[object Object],[object Object],[object Object],[object Object],[object Object]

Deletion ,[object Object],[object Object]

Inversion ,[object Object],[object Object],[object Object]

Translocation ,[object Object],[object Object]

Gene Mutations ,[object Object],[object Object],[object Object]

Types of Gene Mutations ,[object Object],[object Object],[object Object],[object Object],[object Object]

Point Mutation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Point Mutation ,[object Object],[object Object],[object Object],[object Object],[object Object]

Frameshift Mutation ,[object Object],[object Object],[object Object]

Frameshift Mutation ,[object Object],[object Object],[object Object],[object Object]

Nondisjunction ,[object Object],[object Object]

Non-disjunction during meiosis ,[object Object],[object Object],[object Object],[object Object]

Down’s Syndrome ,[object Object],[object Object],[object Object],[object Object],[object Object]

Non dis-junction of sex chromosomes

Turner’s syndrome ,[object Object],[object Object],[object Object],[object Object]

Klinefelter’s syndrome ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Complete non-disjunction and polyploidy ,[object Object],[object Object],[object Object],[object Object]

Polyploidy ,[object Object],[object Object],[object Object]

A: the strawberry plant is exposed to a chemical B: due to the effect of chemical, total non-disjunction at meiosis produces diploid gametes(2n) C: two diploid gametes fuse at fertilisation D: a new plant develops which has four sets of chromosomes (4n)

Economic significance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Effects of polyploidy ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Biology lecture 6

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Biology lecture 6