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Holt chap 6 sect 1

Polar Bear Book Chromosomes

TermDefinition
gametes an organism's reproductive cells, such as sperm and egg
binary fission a form of asexual reproduction that produces identical offspring
gene a segment of DNA that codes for a protein or RNA molecule
chromosome in a eukaryotic cell, one of the structures in the nucleus that is made up of DNA and protein; in a prokaryote, the main ring of DNA
chromatid ne of the two strands of a chromosome
centromere the point where two chromatids of a chromosome attach
homologous chromosome chromosomes that are similar in size, shape, and genetic content
diploid a cell that contains two haploid sets of chromosomes
haploid a cell, nucleus, or organism that has only one set of unpaired chromosomes
zygote the cell that results from the fusion of gametes; a fertilized egg
autosome any chromosome that is not a sex chromosome
sex chromosome one of the pair of chromosomes that determine the sex of an individual
karyotype an array of the chromatids found in an individual's cells at metaphase and arranged in homologous pairs
Created by: mrsnieves
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