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Essential vocab 3-A

TermDefinition
chromatid one of the two identical halves of a chromosome
cytokinesis the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
haploid having a single set of unpaired chromosomes.
meiosis a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes
diploid containing two complete sets of chromosomes, one from each parent.
chromosome a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
histone any of a group of basic proteins found in chromatin.
sexual reproduction Two parents produce offspring non-identical
asexual reproduction only needs one parent, offspring is identical
sex chromosomes a chromosome involved with determining the sex of an organism, typically one of two kinds.
crossing over the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring.
homologous having the same relation, relative position, or structure.
autosomes chromosomes one of the numbered chromosomes, as opposed to the sex chromosomes.
somatic cells any cell of a living organism other than the reproductive cells.
synapsis the fusion of chromosome pairs at the start of meiosis.
cell cycle series of events that takes place in a cell as it grows and divides.
tetrad a group or set of four.
Created by: zaniya whipple16
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