Genetics terms (Gene-Allele)

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Presentation transcript:

Genetics terms (Gene-Allele)

Gene A section of DNA that codes for traits Ex: eye color, hair color, etc…

Meiosis Form of nuclear division that divides a diploid cell into haploid cells; forms gametes for sexual reproduction

Crossing Over Exchange of chromosome segments between homologous chromosomes during meiosis 1

Haploid (n) Cells have only one copy of each chromosome

Diploid (2n) Cells have two copies of each chromosome: one copy from mom and one from dad

Karyotype Image of all chromosomes in a cell

Pedigree Chart of the phenotype and genotypes in a family that is used to determine whether an individual is a carrier of a recessive allele

DNA Fingerprinting The analysis of DNA from samples of the body conducted in order to identify individuals.

Allele different form of the same gene Represented by capital and lowercase letters Ex: blonde hair, brown hair (B or b)