Genes, Alleles, and Meiosis

What is Bb

• Homozygous
• Heterozygous
• Recessive
• Dominant

What is bb

• Homozygous Dominant
• Heterozygous
• Homozygous Recessive
• Genes

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

What is the definition of phenotype?

• The physical expression of a trait
• The genetic combination of alleles
• A gene on the DNA strand

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One form of a gene is called_______________

• a DNA
• a Phenotype
• a trait
• an allele

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Which of the following is a phenotype?

• Bb
• Black fur

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Trait

• the study of heredity

• a person's version of a trait

• a feature or characteristic of a person

• the passing of traits from parents to offspring

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Genetics can be described as passage of genetic instructions from one generation to the next generation.  Which scientist studied the cross breeding of traits in pea plants? 

•  Charles Darwin  
• Gregor Mendel 
• Robert Hook  
• Sir Isaac Newton

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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Why do sexually reproducing organisms look like their parents?

• Boys look more like their dads and girls look more like their moms
• They get half of their genetic material from one parent and half from the other parent
• They get more genetic material from the parent they most resemble
• They only get genetic material from one parent

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