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U2T4 meiosis vocab

TermDefinition
asexual reproduction A mode of reproduction where a single parent organism produces genetically identical offspring (clones) without the fusion of gametes or a change in chromosome number
sexual reproduction A biological process where a male sperm and female egg fuse during fertilization to create a genetically unique, diploid zygote
chromosome A thread-like structure made of protein and a single molecule of DNA that carries genomic information from cell to cell
chromatid One of the two identical halves of a duplicated chromosome formed during cell division
gene The basic physical and funcional unit of heredity made up of a specific sequence of DNA
allele One of two or more alternative versions of a gene found at a specific location on a chromosome
meiosis A soecialized type of cell division that rudeces the chromosome number by half, turning a diploid cell into four genetically distinct haploid gametes
homologous chromosomes A pair of matching chromosomes-one inheritied from the mother and one from the father-that have the same length,centromere position, and gene sequence
tetrad A group of four closely associated chromatids formed when two paired homologous chromosomes come together during meiosis
crossing over The physical exchange of genetic material between non-sister chromatids of hommologous chromosomes during prophase 1 of meiosis
gamete a mature reproductive or sex cell (the sperm or egg)
diploid two complete sets of chromosomes, witg one set inherited from each parent
haploid One cell or organism that contains a single complete set of chromosomes
Created by: user-2051411
 

 



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