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Mutations and Genetic Modifications TEKS BIO 6C

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Mutations and Genetic Modifications TEKS BIO 6C

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Mutations and Genetic Modifications TEKS BIO 6C

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MUTATIONS

MUTATIONS. Dr. Madhumita Bhattacharjee Assiatant Professor Botany Deptt. P.G.G.C.G. -11,Chandigarh. Mutations. Any change in the DNA sequence of an organism is a mutation. Mutations are the source of the altered versions of genes that provide the raw material for evolution.

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Mutations

Mutations. Genetic Changes. What is a mutation ?. A change in the base sequence of DNA. What causes mutations?. Mistakes in replication (spontaneous) Mistakes in base pairs Environmental factors (mutagens) High energy radiation (X rays, UV rays)

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MUTATIONS

MUTATIONS. Changes in DNA that affect genetic information. DNA Mutations. Any change in DNA sequence Can be caused by errors in replication, transcription, cell division or by external agents. Point Mutations. A change in a single base pair in DNA

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Chromosome Mutations

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DNA & RNA

DNA & RNA. DNA STRUCTURE. Double Helix Phosphate ( PO4) Deoxyribose sugar Nitrogen Bases: A-adenine, C-cytosine, T-thymine, G-guanine. NUCLEOTIDE. RNA. Single stranded Phosphate (PO4) Ribose sugar Nitrogen Bases: U-uracil, C-cytosine, G-guanine, A-adenine Three Types

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Mutations youtube/watch?v=kp0esidDr-c&safe=active

Mutations http://www.youtube.com/watch?v=kp0esidDr-c&safe=active. Can also have trisomy and monosomy. Gene mutation. Gene mutations: point vs. frameshift. Chromosomal mutations.

201 views • 9 slides