14.1 Part 1

Multiple Choice

Alleles are what?

• Alleles are the physical traits of an organism.
• Alleles are the same as chromosomes.
• Alleles are proteins that help in gene expression.
• Alleles are different forms of a gene.

Multiple Choice

The specific characteristic of an organism is known as the

• feature
• attribute
• characteristic
• trait

Multiple Choice

The first generation of offspring in a genetic cross are the

• P1 generation
• F2 generation
• F1 generation
• Parental generation

Multiple Choice

The second generation of offspring in a genetic cross are the

• F2 generation
• P generation
• F3 generation
• F1 generation

Multiple Choice

Alleles represented by a capital letter are

• recessive alleles
• dominant alleles
• incomplete alleles
• neutral alleles

Multiple Choice

Alleles represented by a lowercase letter are

• dominant alleles
• homozygous alleles
• heterozygous alleles
• recessive alleles

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Homozygous means

• Having two different alleles for a specific gene.
• Having one allele for a specific gene.
• Having no alleles for a specific gene.
• Having two identical alleles for a specific gene.

Multiple Choice

Heterozygous means

• An organism with two different alleles for a gene.
• An organism with three different alleles for a gene.
• An organism with no alleles for a gene.
• An organism with two identical alleles for a gene.

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What you see in an individual from their alleles is the

• phenotype
• DNA sequence
• chromosome
• genotype

Multiple Choice

The allele pairs of an individual are the

• genotype
• phenotype
• chromosome
• allele

Predict the outcome of a cross of a dad who is homozygous dominant for hair color brown (BB) and a mom who is homozygous recessive for hair color red (bb)