Heredity

What is genetics?

• The study of DNA nucleotides
• The study of heredity
• The study of a cell dividing into 2
• The study of eye color

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The study of how physical characteristics are passed from parents to offspring is called

• Generation

• Heredity

• Inheritance

• Traits

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Chromosomes are found in the ____________ of the cell

• Chloroplast
• Nucleus
• Cytoplasm
• Mitochondria

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What is a gene?

• An entire chromosome that  codes for a trait
• a piece of clothing
• a piece of a DNA on chromosome that codes for a trait
• Chemical messengers in your brain that code for a trait

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What is a recessive allele?

• A trait that is always shown (capital letter)
• A trait that can be hidden (lower case letter)
• Alleles that are the same
• Alleles that are different

What is a dominant allele?

• A trait that is always shown (capital letter)
• A trait that can be hidden (lower case letter)
• Alleles that are the same
• Alleles that are different

The physical traits of an organism

• Teletype
• Genotype
• Mesotype
• Phenotype

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Genes always appear in pairs. Your parents each donate ________ allele for every trait.

• 1

• 2

• 23

• 46

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____________________ are used to make predictions about the genotypes and phenotypes of offspring.

• Dominant Squares
• Punnett Grids
• Punnett Squares
• Recessive Squares

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What is Bb?

• Homozygous
• Heterozygous
• Recessive
• Alleles

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