Heredity and Genetics Quiz

This is the passing of traits from parents to offspring?

• Mutation

• Heredity

• Environment

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Who is known as the father of genetics?

• Charles Darwin

• Gregor Mendel

• James Watson

Molecules that contain the genetic code that is unique to every individual. 

• Inherited Trait

• DNA

• Heredity

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What term describes an organism with two identical alleles for a trait? (TT, or tt)

• Heterozygous

• Homozygous

• Hybrid

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What is a Punnett square used for?

• To predict the outcome of genetic crosses

• To measure the length of a gene

• To identify mutations in genes

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If a parents have the genotype AA and Aa, How many offspring will have the dominant A?

• 1

• 2

• 3

• 4

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In the DNA molecule, Adenine always pairs with......

• Guanine

• Thymine

• Cytosine

In a Punnett square, what does a capital letter represent?

• A recessive allele

• A dominant allele

• A carrier of a trait

What is the term for the physical appearance of an organism as a result of its genotype? (what it actually looks like)

• Phenotype

• Genotype

• Chromosome

How many PAIRS of chromosomes do humans normally have?

• 23

• 46

• 12

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