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Gregor Mendel founded this field that studies heredity...

• genetics

• molecular biology

• physiology

• ecology

Answer explanation

He got this started by observing offspring of hundreds of thousands of pea plants...

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Different forms or versions of a particular gene are known as...

• genes

• alleles

• chromosomes

• DNA

Answer explanation

For each of your traits, you inherit one allele from your mother and one from your father. These may be similar (homozygous) or different (heterozygous)

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Refers to the observable characteristics of a trait (appearance, behavior, etc) that may be influenced by both genes and environments.

• genotype

• characteristic

• phenotype

• anomaly

Answer explanation

PHenotype = PHysical

GEnotype = GEnes

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Refers to the unique combination of alleles whose expression produces a phenotype.

• phenotype

• genotype

• characteristic

• trait

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When alleles in a pair are identical we can say they are...

• heterozygous

• hemizygous

• homozygous

Answer explanation

homo- = "same"

hetero- = "different"

When alleles in a pair are NOT identical, we can say the genotype is...

• heterozygous

• homozygous

• hemizygous

Answer explanation

homo- = "same"

hetero- = "different"

Describes an allele that produces a dominant phenotype in individuals who have one or more copies of that allele.

• recessive

• codominant

• dominant

Answer explanation

When a genotype contains at least one dominant allele, a dominant phenotype is produced.

Describes an allele that causes a recessive phenotype to be expressed when dominant alleles are not present.

• dominant

• codominant

• recessive

Answer explanation

A genotype with two recessive alleles will produce a recessive phenotype.

A tool used by geneticists to predict offspring genotypes and phenotypes in mating.

• protractor

• graduated cylinder

• codon chart

• punnett square

Answer explanation

Watch the punnett square gif to see how one is completed.

These haploid cells are created by meiosis & contain a single allele (gene) for each trait.

• somatic cells

• gametes

• stem cells

Answer explanation

In meiosis homologous chromosome pairs separate, ensuring that each gamete receives only one gene for each trait.

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