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SLSBio11GeneticsTZ
SLS Bio11 Genetics TZ
Term | Definition |
---|---|
Allele | One of the possible types of a gene. Most genes have a dominant and recessive one. |
Autosome | Any chromosome that is not a sex chromosome. |
Codominance | Is when two genes are evenly shown |
Dihydrid | An organism that is heterozygous for 2 traits |
Dominant Allele | It is more influential over the recessive allele |
Genotype | An organism's unique genetics |
Heterozygous | having a recessive and dominant allele. Two differents ones |
Homozygous | “Homo” Having the same alleles |
Monohybrid | hybrid that is heterozygous for one trait |
Multiple Allele | There are more than 2 alleles |
Phenotype | appearance that is the way it is because of the environment and genotype |
Punnet Square | a machine used to forecast the product of easy genetic crosses |
Recessive Allele | innate factor shown in phenotype but only when genotype is homozygous |
Sex Chromosome | chromosome that decides sex so either male XY or female XX |
Sex-linked Trait | a certain trait that is with the sex chromosome but not to do with sexual stuff |
Test Cross | crossing of the dominant and recessive phenotype |
Apoptosis | the cell dies because a lot of cellular events have pushed the cell to dying |
Cell Cycle | a cycle that has cell growth as well as division |
Centriole | Is cell organelle. Found in pairs. Can organize spindle fibres during division |
Centromere | area where sister chromatids bind to each other where fibres attach |
Chromatin | Holds DNA. Is what chromosomes are made of |
Chromosome | Hold your genes. See during division |
Crossing-Over | transfer of genes between homologous chromosome .Makes offspring unique |
Cytokinesis | splitting of the cell in either meiosis or mitosis |
Diploid(2n) | double # of chromosomes in gametes |
Chromosome Number | characteristic # of chromosome in cell in certain species |
Gamete | sexual reproduction cell that makes zygote |
Haploid(n) Chromosome Number | haploid number (n) is the # of chromosomes in a gamete |
Homologous Chromosomes | Chromosomes that pair up for meiosis |
Meiosis | a type of cell division used for sexual reproduction |
Mitosis | cell division where daughter has same genetic makeup. Used for growth and repair. |
Nondisjunction | homologous chromosomes failing to split during meiosis |
Somatic Cell | Any cell that is not a reproductive cell |
Synapsis | homologous chromosomes pair in meiosis in prophase 1 |