genetics and heredity $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 mendelian genetics...

Genetics and Heredity

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MendelianGenetics

Non-Mendelian Genetics

Pedigrees Vocabulary

FINAL ROUND

Punnett Squares

Mendelian Genetics:

$100 Question

When a homozygous dominant genotype is crossed with a homozygous recessive genotype, what is the phenotypic ratio expected in the F2 generation?

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Mendelian Genetics :

$100 Answer

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3:1

Mendelian Genetics :

$200 Question

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In a dihybrid cross, a purebred dominant and a purebred recessive individual (they are purebred for both traits) are crossed. What is phenotypic ratio of the F2 generation?

Mendelian Genetics :

$200 Answer

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9:3:3:1

Mendelian Genetics :

$300 Question

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A ___________allele is one that is always expressed when that allele is present.

Mendelian Genetics :

$300 Answer

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dominant

Mendelian Genetics :

$400 Question

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What is Mendel’s Law of Segregation? Draw a diagram on the white board to illustrate this law.

Mendelian Genetics :

$400 Answer

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Alleles separate during gamete formation

Mendelian Genetics :

$500 Question

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What is the law of independent assortment? Draw a diagram to aid in the explanation.

Mendelian Genetics :

$500 Answer

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Genes are separate chromosomes assort into gametes independently

Non-Mendelian:

$100 Question

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Which blood type is the universal donor? Why?

Non-Mendelian :

$100 Answer

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Type O, it does not have any antigens on the surface of the red blood cells (they will not react with the antibodies in the other blood types)

Non-Mendelian :

$200 Question

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Skin color, eye color, and height in humans are examples of these type of traits that cause a bell shaped curve set of phenotypes

Non-Mendelian :

$200 Answer

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polygenic

Non-Mendelian :

$300 Question

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This type of inheritance exists when there exists a phenotype that is “intermediate” between those of the parents

Non-Mendelian :

$300 Answer

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Incomplete dominance

Non-Mendelian :

$400 Question

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This type of inheritance takes place when you can see both phenotypes expressed when two different alleles are inherited

Non-Mendelian :

$400 Answer

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Co-dominance

Non-Mendelian :

$500 Question

This type of inheritance will have ONLY female carriers

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Transcription :

$500 Answer

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Sex-linked

Punnett Squares:

$100 Question

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ANSWER

The ability to taste PTC is dominant over non-tasting. A non-taster and a heterozygous taster have children. What is the phenotypic ratio of the offpring?

Punnett Squares :

$100 Answer

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1 taster:1 nontaster

Punnett Squares :

$200 Question

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A person with type A blood marries a person with type B blood. They have a child with type O blood. Create the Punnett square to show this inheritance. What is the chance of having a child with type O?

Punnett Squares :

$200 Answer

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25%

Punnett Squares :

$300 Question

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Brown hair (B) is dominant blonde hair (b) is recessive.

Straight hair (S) is dominant and curly hair (s) is recessive.

A man who is homozygous for brown, straight hair mates with a woman who is homozygous for blonde, curly hair. What is the chance they will have a child with brown, straight hair?

Punnett Squares :

$300 Answer

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9/16

Punnett Squares :

$400 Question

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Colorblindess is sex-linked recessive. A man who is colorblind marries and carrier female. What is a chance they will have a child who is color blind?

Punnett Squares :

$400 Answer

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50%

Punnett Squares :500

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ANSWER

What is a test cross? What do the results of a test cross indicate?

Punnett Squares :500

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If you do not know the genotype of an individual with the dominant phenotype you can cross it with a homozygous recessive individual.

All dominant phenotype in F1 = homozygous dominant

1:1 ratio of dominant phenotype to recessive phenotype

Pedigrees:

$100 Question

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A circle represents….

Pedigrees:

$100 Answer

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female

Pedigree:

$200 Question

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ANSWER

What type of inheritance pattern?

Pedigrees:

$200 Answer

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Autosomal recessive

Pedigrees:

$300 Question

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ANSWER

What type of inheritance pattern?

Pedigrees:

$300 Answer

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Sex-Linked Recessive

Pedigrees:

$400 Question• What type of inheritance pattern?

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ANSWER

Pedigrees:

$400 Answer

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Autosomal Dominant

Pedigrees: $500 Question

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Use your white board to draw this pedigree. Label all genotypes.

Zack and Kelly have 3 children, a son and two daughters. Their son is color blind. The youngest daughter marries and also has a son who is color blind.

Pedigrees: $500 Answer

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See board

Vocab:

$100 Question

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alternative forms of a gene that occurs at the same locus on homologous chromosomes.

Vocab: :

$100 Answer

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alleles

Vocab: :

$200 Question

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ANSWER

this occurs when one gene locus masks or modifies the phenotype of a second gene locus

Vocab: : $200 Answer

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epistasis

Vocab: :

$300 Question

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occurs when a single mutant gene affects two or more distinct and seemingly unrelated traits.

Vocab: : $300 Answer

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plietropy

Vocab: :

$400 Question

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ANSWER

A diagram that traces the inheritance of a trait through generations of a family

Vocab: :

$400 Answer

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Pedigree

Vocab: :

$500 Question

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These are proteins in the plasma of blood that are responsible for blood type compatibility

Vocab: :

$500 Answer

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antibodies

FINAL ROUND Question

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Tall is dominant over short. Purple is dominant over white. A heterozygous purple, short plant is crossed with a white, heterozygous tall plant.

Complete a dihybrid cross and determine the phenotypic ratio. (must show work)

FINAL ROUND Question

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ANSWER

1:1:1:1