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Science
Term | Definition |
---|---|
heredity | the passing of traits from parents to offspring |
genes | small segments of chromosomes with a set of instructions donated by parents to offspring. Genes are found on chromosomes |
alleles | different forms of the same gene |
genotype | the inherited combination of alleles |
phenotype | organism's inherited physical appearance |
recessive trait | a trait that is apparent only when two recessive alleles |
dominant trait | a trait observed when at least one dominant alleles |
purebred/homozygous | an organism with two same alleles for a trait |
incomplete dominance/ heterozygous | when an offspring inherits two different dominant alleles or two different recessive alleles and the traits blend. |
hybrid/heterozygous | an organism with two different alleles for a trait |
sex chromosomes | the X and Y chromosomes that is responsible for determining an organisms gender |
Reginald Punnett | developed a square that is used to visualize all the possible combinations of alleles in offspring resulting from a genetic cross |
Gregor Mendel | is considered the father of genetics. Was the fist to discover |