7th Grade Science Genetics

What is an organism's physical representation of it's genotype?

• elle

• heredity

• dominant

• phenotype

One set of instructions for an inherited trait

• sexual reproduction

• gene

• homozygous

• heterozygous

Physical characteristics, shown by an organism, based on the allele combination

• traits

• punnett squares

• reproduction

One of the alternative forms of a gene that governs a characteristic.

• reproduction

• allele

• punnett square

The entire genetic makeup of an organism; also the combination of genes for one or more specific trait. (ex. Bb)

• genes

• traits

• genotype

• phenotype

A graphic used to predict the results of a genetic cross.

• punnett square

• reproduction

• heterozygous

• homozygous

An allele that is fully expressed whenever the allele is present in an individual.

• reproductive

• heterozygous

• heredity

• dominant

Describes an allele that will be masked unless the organism is homozygous for the trait.

• recessive

• punnett square

• heterozygous

• allele

When an organism has the same two alleles for a trait. (example: TT)

• homozygous

• heterozygous

• gene

• trait

Structures in the nucleus made up of DNA and protein

• asexual reproduction

• chromosomes

• punnett squares

• finch