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Unit2Topic4Vocab

TermDefinition
Asexual Reproduction Reproduction that only involves one cell. Results in at least 2 identical daughter cells.
Sexual Reproduction Reproduction using an egg and sperm cell to create a zygote that eventually matures into a complete organism.
Chromosome Organized structure of DNA that carries genetic instructions.
Chromatid Half of a chromosome.
Gene Specific sequence of DNA that affects a certain trait of an individual (ex. eye color, hair color, freckles)
Allele Parts of a gene that actually determine the aforementioned traits.
Meiosis Cell splitting process for making reproductive cells. Results in four haploid cells.
Homologous chromosomes Chromosomes that are identical in size, shape, and purpose.
Tetrad A pair of homologous chromosomes.
Crossing Over Chromosomes in a tetrad "passing" certain genes and alleles to it's pair for genetic diversity
Gamete Cell made by meiosis; is for reproduction and only has 23 chromosomes
Diploid Cell with two sets of chromosomes, equaling a total of 46 chromosomes in humans
Haploid Cell with only one set of chromosomes, equaling only 23 in humans.
Created by: user-2051852
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