Heredity
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Heredity. DNA . DNA stores all of the information that makes each of us who we are. Controls the traits we possess Trait=Physical Characteristic Examples include skin color, eye color, height, eye sight, hair color, etc. Heredity.

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DNA

  • DNA stores all of the information that makes each of us who we are.

  • Controls the traits we possess

  • Trait=Physical Characteristic

  • Examples include skin color, eye color, height, eye sight, hair color, etc....


Heredity1
Heredity

  • Heredity= The passing of genetic material from parent to offspring.

  • Gene= Basic unit of heredity; a group of DNA

  • Inherited traits are controlled by genes

    • Example: eye color

  • Allele= Variation of a gene

    • Example: Blue eyes or Brown Eyes


Asexual reproduction
Asexual Reproduction

  • Reproduction that occurs when one organism produces offspring with identical DNA as the parent

  • Advantage: Quick and only requires one organism to reproduce.

  • Disadvantage: All offspring are identical or “clones” of the parent, no genetic diversity



Sexual reproduction
Sexual Reproduction

  • Reproduction that occurs between two organisms that result in the offspring getting DNA from both parents

  • Advantages: Greater genetic diversity

  • Disadvantages: Takes two organisms and more energy.



Dominant and recessive alleles
Dominant and Recessive Alleles

  • In sexual reproduction, offspring receive one allele from each parent.

  • One allele is dominant to the other allele

  • The dominant allele is always expressed when present in an offspring

    • Example: Eye Color

    • Brown is dominant=B

    • Blue is recessive=b

    • If one brown allele is present the offspring will have brown eyes


Punnet squares
Punnet Squares

  • Punnet Squares are used to predict the traits of the offspring between two parents based on their alleles.

Parent 1

Parent 2


Punnet squares continued
Punnet Squares continued

Parent 1

Parent 2


Punnet squares continued1
Punnet Squares Continued

Parent 1

Parent 2


Punnet squares continued2
Punnet Squares Continued

Parent 1

Parent 2


Punnet squares continued3
Punnet Squares Continued

Parent 1

Parent 2


Punnet squares continued4
Punnet Squares Continued

Parent 1

Parent 2


Punnet squares continued5
Punnet Squares Continued

Parent 1

Parent 2


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