Biology Ch7 Vocab
Chapter 7 Vocabulary Test. Polar Bear Biology Bood
Terms
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- Ovum
- a mature egg cell.
- Oogenesis
- the production, growth, and maturation of an egg, or ovum.
- Independent Assortment
- random distribution of homologous chromosomes during meiosis.
- Fertilization
- the union of a male and female gamete to form a zygote.
- Sexual Reproduction
- reproduction in which gametes from two parents unite.
- Gametophyte
- is the haploid phase that produces gametes by mitosis.
- Sporophyte
- the diploid phase in the life cycle that produces spores.
- Meiosis
- is a form of cell division that hlves the number of chromosomes when forming specialized reproductive cells.
- Spore
- is a haploid reproductive cell produced by meiosis that is capable of developing into an adult without fusing with another cell.
- Clone
- an organism that is genetically identical to its parent.
- Asexual Reproduction
- a single parent passes copies all of its genes to each of its offspring; no fusion of haploid cells
- Spore
- is a haploid reproductive cell produced by meiosis that is capable of developing into an adult without fusing with another cell.
- Spermatogenesis
- the process by which male gametes form.
- Sperm
- male gametes
- Crossing-over
- occurs when portions of a chromatid on one homologous chromosome are broken and exchanged with corresponding chromatid portions of the other homologous chromosomes.