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slsbio11 Genetics CP

SLS Bio11 genetics CP

TermDefinition
allele Variant forms of the same gene
autosome A chromosome that is not a sex chromosome
codominance The relationship between two versions of a gene
dihybrid A cross between two pure lines that differ in two observed traits
dominant allele A relationship in which one allele masks the effects of the other
genotype An individual's collection of genes
heterozygous Having dissimilar pairs of genes for any hereditary characteristic
homozygous Having similar pairs of genes for any hereditary charachteristic
monohybrid The mating of individuals with different alleles
multiple allele A series of three or more alternative forms of a gene
phenotype The composite of an organisms observable characteristics
punnet square A diagram used to predict an outcome of a particular cross
recessive allele An allele that only produces its characteristic phenotype when its paired allele is identical
sex chromosome A chromosome that is involved with determining the sex of an organism
sex linked trait A trait that is carried only by the male or female parent
test cross A genetic cross between a homozygous recessive individual and a corresponding suspected heterozygote to determine the genotype of the latter
apoptosis The death of cells that occurs as a normal and controlled part of an organism's growth and development
cell cycle The process that takes place as a cell grows and divides
centriole A minute cylindrical organelle near the nucleus in animal cells that produces spindle fibers during cell division
centromere The point on a chromosome that is attached to a spindle fiber during cell division
chromatin The material of which the chromosomes are composed
chromosome A threadlike structure of nucleic acids and protein found in the nucleus of most living cells
crossing-over The exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristic in offspring
cytokinesis The cytoplasmic division of a cell at the end of mitosis or meiosis.
diploid(2n) chromosome number Containing two complete sets of chromosomes.
gamete A mature haploid male or female that is a integral part of sexual reproduction.
haploid(n) Chromosome number A cell that has half the usual number of chromosomes.
homologous chromosome A pair of similar chromosomes from the mother and the father.
meiosis A type of cell division that produces 4 daughter cells with half the number of chromosomes as the parent
mitosis A type of cell division that results in two identical daughter cells
nondisjunction The failure for homologous chromosomes to separate.
somatic cell Any cell that is not a reproductive cell
synapsis The fusion of chromosome pairs at the start of meiosis
Created by: 1471728316490208