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SLS Bio11 Gen AB

SLS Bio Genetics AB

TermDefinition
Allele An alternative form of a gene that is made by a mutation in the same place as the chromosomes.
Autosome A chromosome that is not a sex chromosome.
Codominance The relationship between the dominant allele and the recessive received from your parents.
Dihybrid The offspring of parents differing in two specific pairs of genes.
Dominant allele The gene from one of your parents that is can overpower the other gene if it is different.
Genotype The genetic makeup of an organism.
Heterozygous Having different pairs of genes for any inherited characteristic.
Homozygous Having identical pairs of genes for any inherited characteristic
Monohybrid The offspring of individuals that differ in a certain gene
Multiple allele a series of more than two allele genes
Phenotype The observable constitution of an organism
Punnet square The chart used to determine probability of getting a certain genotype
Recessive allele The allele that can easily be covered up by a dominant allele
Sex chromosone The chromosome that decides the sex of an organism
Sex linked trait Certain traits that are known to be linked to the X and Y chromosomes
Test cross A genetic test for heterozygosity where an organism of dominant phenotype but unknown genotype is crossed to an organism recessive for all
Apoptosis The process of programmed cell death
Cell cycle The series of events as the cell grows and divides
Centriole The thing that makes spindle fibers
Centromere The part on the chromosome where the spindle fibers grab
Cromatin The stuff that the chromosome is made of
Chromosome The things in the nucleas that hold the genetic code for the cell
Crossing-over The exchange of genes in homologous chromosomes
Cytokinesis The cytoplasm separation at the end of mitosis or meiosis
Diploid (2n) A cell containing two complete sets of chromosomes from each parent
Chromosome number The characteristic number of a chromosome found in the cell nuclei
Gamete A mature male or female sex cell
Haploid (n) A cell with a single set of unpaired chromosomes
Homologous Pairing at meiosis and having the same structure and pattern of genes
Meiosis The process of cell division where four haploid daughter cells are created
Mitosis the process of cell division where two daughter cells are made
Nondisjunction When chromosomes don't separate in cell division
Somatic cell Any cell in an organism that is not a sex cell
Synapsis The fusion of chromosome pairs at the beginning of meiosis
Created by: angusbrownie