Genetics intro

the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

An allele whose trait always shows up in the organism when the allele is present.

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

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

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

one set of instructions for an inherited trait

• heredity
• allele
• trait
• gene

one of the alternative forms of a gene that governs a characteristic, such as hair color

• allele
• gene
• trait
• DNA

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

• homozygous
• hetrozygous
• protein
• chromosome

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

• protein
• homozygous
• heterozygous
• genotype

father of genetics

• Gregor Mendel
• James Watson
• Dr. Robbins
• Francis Crick

Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.

• DNA
• protein
• RNA
• glucose nucleic acid (GNA)

Pea plants can have green or yellow seeds. In a pea plant that is heterozygous for seed color, the allele for yellow seeds masks the effects of the allele of green seeds. Which of the following terms best describes the allele for yellow seeds?

• codominant
• recessive
• dominant
• sex-linked