Bio Ch 6

Body cells

Sex cells

Two chromosomes-one from the mother and one from the father- that have the same length and general appearance

Chromosomes that contain genes for characteristics not directly related to the sex of an organism

Chromosomes that control development of sexual characteristics

The fusion of an egg and sperm cell

A cell has two copies of each chromosome: one from the mother and one from the father. Diploid chromosome number is 46.

A cell has only 1 copy of each chromosome.

A form of nuclear divison that divides diploid into haploid cells

Production of gametes

Cells with little more than DNA that are eventually broken down

Distinguishing characteristics that are inherited

The mating of two organisms

A piece of DNA that provides a set of instructions to a cell to make a certain protein

An alternative forms of a gene that may occur at a specific locus.

Two of the same alleles at a specific locus

Two different alleles at a specific locus

All of an organisms genetic material

The genetic makeup of a specific set of genes

Collection of an organisms physical characteristics

Allele that is expressed when two different alleles or two dominant alleles are present

An allele that is expressed when only two copies are present

A grid system fr predicting all possible genotypes resulting from a cross