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Genetics – Study of how traits are inherited

Genetics – Study of how traits are inherited. Gregor Mendel – known as the “father of genetics” because of his discoveries studying pea plants . Heredity – passing of traits from generation to generation through genetic material. Dad. Mom . Chromosome of offspring. Grandmother.

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Genetics – Study of how traits are inherited

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  1. Genetics – Study of how traits are inherited

  2. Gregor Mendel – known as the “father of genetics” because of his discoveries studying pea plants

  3. Heredity– passing of traits from generation to generation through genetic material Dad Mom Chromosome of offspring Grandmother Mother Daughter

  4. Chromosome – structure found in the nucleus of a cell that contains genetic material

  5. DNA(Deoxyribonucleic Acid) – (looks like a twisted ladder) makes up a chromosome Gene – a section of DNA that codes for a specific trait

  6. Trait – characteristic passed from parent to offspring; eye color, face shape

  7. Offspring – result of reproduction; children or young of a parent

  8. Genotype – the actual genetic makeup found on a chromosome; scientist represent a genotype as two letters (EE, Ee, ee) Ee

  9. Allele– a letter in a gene pair; you receive one allele from each parent Allele from mom Allele from dad t T Tt Offspring’s Gene Pair

  10. Homozygous – alleles in a gene pair are the same (TT or tt); also called purebred EE ee

  11. Heterozygous –alleles in a gene pair are different (Tt); also called hybrid Ee

  12. Classify each gene pair as Homozygous (Purebred) or Heterozygous (Hybrid) Homozygous / Purebrid 1 2 3 4 5 6 7

  13. Phenotype – the physical characteristic shown; short, tall, brown hair Red eyes White eyes

  14. Dominant– trait shown any time it is present in a gene pair; represented by a capital letter, and always written first EE Ee

  15. Recessive– trait that is only seen when 2 alike alleles are present (tt); represented by a lowercase letter ee

  16. Classify each gene pair as DOMINANT or recessive Dominant 8 9 10 11 12 13 14

  17. Punnett Square– (created by Reginald Punnett) used by scientist to predict traits of an offspring

  18. Probability – possibility that something will take place; represented as a fraction Yellow 2/4

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