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Genetics Overview
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7th grade
Biology
cdbrown_86076
24 minutes ago
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  • Slide 1
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    Genetics Overview

    Body text
  • Slide 2
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    Genetics

    • Study of inheritance

    • Gregor Mendel is the “Father of Genetics”

    • He used pea plants because they had easily identifiable traits

  • Slide 3
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    Vocabulary

    Dominant- gene, trait, or allele that shows

    Recessive- gene, trait, or allele that does not show


    Homozygous- two of the same genes, traits, or alleles in the same individual (Double O’s)

    Heterozygous- two different genes, traits, or allele in the same individual

  • Slide 4
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    Vocab

    • Punnett Square- Tool used to predict two individuals offspring

    • Pedigree- History of an individuals traits

  • Slide 5
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    Vocab

    • Purebred- homozygous

    • Hybrid- heterozygous

    • Carrier- heterozygous the trait is hidden

  • Slide 6
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    Vocab

    • Genotype- the genetic makeup of an individual (the letters)

    • Phenotype- the physical characteristics of an individual (ph=ph)

  • Slide 7
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    Probability

    • A measured chance of something happening

    • In Genetics we are measuring the chance of individuals gaining dominant and recessive traits

  • Slide 8
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    Punnett Square

    • Probability in a monohybrid Punnett square is 1/4 1/2 3/4 4/4

    • You can show this in ratios, fractions, percentages, or just numbers

  • Slide 9
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    Pedigree

    • Genetic representation of a family tree

    • Shows relationships between family members

    • This can be male or female, and which members are carriers for a trait

  • Slide 10
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  • Question 11
    300 seconds
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    Q.

    The genotype bb is ...

    answer choices

    homozygous dominant

    heterozygous

    homozygous recessive

  • Question 12
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    Q.

    The genotype BB is ...

    answer choices

    homozygous dominant

    heterozygous

    homozygous recessive

  • Question 13
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    Q.

    The genotype Hh is ...

    answer choices

    homozygous dominant

    heterozygous

    homozygous recessive

  • Question 14
    30 seconds
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    Q. Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
    answer choices
    DNA
    protein
    RNA
    glucose nucleic acid (GNA)
  • Question 15
    30 seconds
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    Q. having two different genes for a trait (sometimes called hybrid).
    answer choices
    protein
    homozygous
    heterozygous
    genotype
  • Question 16
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    Q. having two of the same genes for the trait (sometimes called purebred).
    answer choices
    homozygous
    hetrozygous
    protein
    chromosome
  • Question 17
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    Q. the chances of something happening
    answer choices
    dominant
    genotype
    phenotype
    probability
  • Question 18
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    Q. genetic makeup
    answer choices
    phenotype
    genotype
    heterzygous
    allele
  • Question 19
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    Q. an organism's appearance or other detectable characteristic
    answer choices
    genotype
    phenotype
    genetics
    heterozygous
  • Question 20
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    Q. An allele whose trait only shows up when no dominant allele is present.
    answer choices
    hidden allele
    dominant allele
    recessive allele
    present allele
  • Question 21
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    Q. An allele whose trait always shows up in the organism when the allele is present.
    answer choices
    recessive allele
    dominant allele
    hidden allele
    present allele
  • Question 22
    30 seconds
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    Q.

    the passing of genetic traits from parent to offspring.

    answer choices

    heredity

    trait

    gene

    allele

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