Pedigree Chart Flashcards
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Questions and Answers

What is the phenotype for the genotype AA?

normal

What is the phenotype for the genotype Aa?

normal

What is the phenotype for the genotype aa?

albino

Fill out blank 1 on the pedigree: __________

<p>aa</p> Signup and view all the answers

Fill out blank 2 on the pedigree: __________

<p>Aa</p> Signup and view all the answers

Fill out blank 3 on the pedigree: __________

<p>Aa</p> Signup and view all the answers

Fill out blank 4 on the pedigree: __________

<p>Aa</p> Signup and view all the answers

Fill out blank 5 on the pedigree: __________

<p>aa</p> Signup and view all the answers

How many children does this family have?

<p>3</p> Signup and view all the answers

What are the sexes of the children?

<p>female</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #1: __________

<p>Aa</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #2: __________

<p>Aa</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #3: __________

<p>aa</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #4: __________

<p>Aa</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #5: __________

<p>Aa</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #6: __________

<p>aa</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #7: __________

<p>Aa</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #8: __________

<p>aa</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #9: __________

<p>A__</p> Signup and view all the answers

Fill out the blanks of the pedigree (Aa, Aa, or aa) #10: __________

<p>aa</p> Signup and view all the answers

Indicate the genotype for #1 in Tay-Sachs inheritance:

<p>Tt</p> Signup and view all the answers

Indicate the genotype for #2 in Tay-Sachs inheritance:

<p>Tt</p> Signup and view all the answers

Indicate the genotype for #3 in Tay-Sachs inheritance:

<p>tt</p> Signup and view all the answers

Indicate the genotype for #4 in Tay-Sachs inheritance:

<p>Tt</p> Signup and view all the answers

Indicate the genotype for #5 in Tay-Sachs inheritance:

<p>Tt</p> Signup and view all the answers

Indicate the genotype for #6 in Tay-Sachs inheritance:

<p>tt</p> Signup and view all the answers

Indicate the genotype for #7 in Tay-Sachs inheritance:

<p>Tt</p> Signup and view all the answers

Indicate the genotype for #8 in Tay-Sachs inheritance:

<p>Tt</p> Signup and view all the answers

Indicate the genotype for #9 in Tay-Sachs inheritance:

<p>tt</p> Signup and view all the answers

Indicate the genotype for #10 in Tay-Sachs inheritance:

<p>tt</p> Signup and view all the answers

Indicate the genotype for #11 in Tay-Sachs inheritance:

<p>T__</p> Signup and view all the answers

Indicate the genotype for #1 in cystic fibrosis inheritance:

<p>Ff</p> Signup and view all the answers

Indicate the genotype for #2 in cystic fibrosis inheritance:

<p>Ff</p> Signup and view all the answers

Indicate the genotype for #3 in cystic fibrosis inheritance:

<p>ff</p> Signup and view all the answers

Indicate the genotype for #4 in cystic fibrosis inheritance:

<p>F__</p> Signup and view all the answers

Indicate the genotype for #5 in cystic fibrosis inheritance:

<p>F__</p> Signup and view all the answers

Indicate the genotype for #6 in cystic fibrosis inheritance:

<p>ff</p> Signup and view all the answers

Indicate the genotype for #7 in cystic fibrosis inheritance:

<p>Ff</p> Signup and view all the answers

Indicate the genotype for #8 in cystic fibrosis inheritance:

<p>Ff</p> Signup and view all the answers

Indicate the genotype for #9 in cystic fibrosis inheritance:

<p>ff</p> Signup and view all the answers

Indicate the genotype for #10 in cystic fibrosis inheritance:

<p>ff</p> Signup and view all the answers

Indicate the genotype for #11 in cystic fibrosis inheritance:

<p>Ff</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #1:

<p>dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #2:

<p>Dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #3:

<p>dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #4:

<p>Dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #5:

<p>dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #6:

<p>D__</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #7:

<p>dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #8:

<p>dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #9:

<p>Dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #10:

<p>Dd</p> Signup and view all the answers

Fill out the pedigree of polydactyly for #11:

<p>Dd</p> Signup and view all the answers

Study Notes

Albinism

  • Albinism is a recessive genetic trait characterized by a lack of pigment in skin, hair, and eyes.
  • Individuals with albinism typically have pale skin, white hair, and pale blue eyes.
  • In genetic notation:
    • Genotype AA results in a normal phenotype.
    • Genotype Aa also results in a normal phenotype.
    • Genotype aa results in an albino phenotype.

Tay-Sachs Disease

  • Tay-Sachs is a recessive disorder affecting enzyme function in lysosomes, leading to the accumulation of waste material in brain cells.
  • Progressive damage occurs, ultimately leading to death.
  • In genetic notation:
    • Genotype Tt and Tt yield normal function, while genotype tt results in Tay-Sachs.

Cystic Fibrosis

  • Cystic fibrosis is a recessive condition caused by mucus buildup in the lungs, resulting in breathing difficulties.
  • Affected individuals have genotypes ff, while those without the disorder may have genotypes Ff or FF.

Polydactyly

  • Polydactyly is a dominant condition where individuals have extra fingers or toes.
  • Genotypes Dd or DD result in the presence of extra digits, while genotype dd denotes normal digits.

Pedigree Analysis

  • Key to analyzing genetic inheritance is filling in pedigrees based on observed traits and known genotypes.
  • Pedigrees aid in visualizing how traits pass through generations, clarifying recessive and dominant patterns.

Key Terms

  • Recessive Trait: A genetic trait that requires two copies of the allele for expression.
  • Dominant Trait: A genetic trait that can be expressed with only one copy of the allele.
  • Genotype: The genetic constitution of an individual.
  • Phenotype: The observable characteristics or traits of an individual.

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Explore the genetics of albinism with this Pedigree Chart worksheet flashcards. Learn about normal and albino phenotypes through various genotypes. Perfect for students studying genetics in biology.

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