Biology Chapter 6

also known as body cells, make up most of your body tissues and organs

are sex cells - ova, or eggs, in the female, snd spermatozoa, or sperm cells, in males

are two chromosomes - one ingerited from the mother, one from the father - that have the same length and general appearance

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

Control the development of sexual charactaristics that most sexually reproducing that most sexually reproducing species have

involves the fusion of two gametes that results in offspring that are a genetic mixture of both

Is the actual fusion of an egg an a sperm cell. When this occurs, the nuclei of the egg and sperm cell fuse to form one nucleus, that must have the correct number of chromosomes for a healthy organism to develop.

Cells have two copies of each chromosome: one copy from the mother and one from the father. Can be represented by 2n.

Cells have only one copy of each chromosome. This is represented by n.

is a form of nuclear division that divides a diploid cell into haploid cells. This is essential for sexual reproduction.

is the production of gametes. Includes both meiosis and other changes that produce a mature cell.

the male gamete, is so much smaller than the egg. It swims to the egg to fertilize it. Has a tail named flagellum.

The female gamete. The formation of this is not over until the ___ is fertilized many years later. The process includes periods of active development and long periods of inacticity.

Cells with little more than DNA that are eventually broken down. Is produced by meiosis I and does not undergo meiosis II.