Meiosis & Fertilization Flashcards
1. There are 7 errors in the flashcards below. Find and correct each of the 7errors.
2. Transcribe (rewrite ) the information below onto index cards and use them to review
for your next unit exam.
Haploid (1n) Means half or “one set” of chromosomes
Diploid (2n) Means “two sets” of chromosomes
Gamete Cells produced in meiosis and then are involved in sexual reproduction.
Also known as sex cells or reproductive cells. In females, gametes are
eggs. In males, gametes are sperm.
Homologous Pair Word used to describe a pair of chromosomes where one chromosome
came from the mother and one chromosome came from the father.
(or chromosomes) They are usually the same size.
Meiosis Process of cell division where the number of chromosomes per cell is
cut in half (23 chromosomes for humans). Occurs only in
reproductive cells. Results in the formation of four genetically
different, haploid, daughter cells.
Mitosis Process of cell division that occurs in somatic (body) cells. Results in
the formation of two genetically identical, diploid daughter cells.
Asexual Reproduction Process whereby a single parent reproduces by itself. Produces
genetically identical offspring.
Sexual Reproduction Process whereby two cells (sperm and egg) from two different parents
unite to form the first cell of a new organism.
Reproductive Cells Also known as sex cells, involved in sexual reproduction.
Crossing-Over When homologous chromosomes exchange genetic information and
produce new combinations of DNA.
Fertilization Process in sexual reproduction in which male and female reproductive
cells (sperm and egg) join to form a new cell.
Zygote An egg that has been fertilized by sperm. After fertilization, these new
cells begin to undergo mitosis (cell division)!
Somatic Cell Cells that make up the body (such as muscle cells, skin cells, nerve
cells). New somatic cells are made through mitosis.
Germ Cells Cells that are involved in reproduction (sperm and egg). Germ cells
are made through meiosis.