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Chapter 17 Mind Map, DNA Replication, UV Radiation, Incomplete Dominance,…

- - - - certain chemicals
      - ultraviolet light
      - x-rays
      - radiation from radioactive substances
    - - causes of insertion and deletion mutations
      - insertion sequences
        
        few thousand base pairs long
        
        genes code for enzymes involved in cutting and splicing
      - transposon
        
        like a longer insertion sequence
        
        genes code for proteins
      - transposable elements may be a powerful tool for genetic engineering
- - - - parents are called parental generation (P)
      - offspring of parental crossbreeding is first filial generation (F1)
      - If F1 interbreed, their offspring is F2 generation
      - homozygous individuals have identical alleles for a gene
      - heterozygous individuals have different alleles for a gene
      - dominant alleles "dominate" and are shown in the phenotype
      - recessive genes are not shown in the phenotype
- - - - variegation is the presence of white, red, or orange spot or sectors on a plant that is otherwise green