Introduction to Genetics

The man who studied genetics and came up with genetics is

• Watson
• Crick
• Mendel
• Darwin

An offspring will receive how many alleles from each parent to determine a specific trait?

• one

• two

• three

• five

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

What is a phenotype

• The genetic make up (code)
• The physical trait

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the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

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having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

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having two different genes for a trait (sometimes called hybrid).

• protein
• homozygous
• heterozygous
• genotype

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G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

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Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

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An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele