Genetics

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

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NGSS.HS-LS3-1

NGSS.HS-LS3-3

The man who studied genetics and came up with genetics is

• Watson
• Crick
• Mendel
• Darwin

What is a phenotype

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

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NGSS.HS-LS3-1

the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• homozygous
• hetrozygous
• protein
• chromosome

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NGSS.HS-LS3-1

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

• protein
• homozygous
• heterozygous
• genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• 0 %
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

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

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

Which of the following genotypes is a purebred?

• Bb
• Gg
• bb
• Dd

What is the definition of phenotype?

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

Tags

NGSS.HS-LS3-1