Vocabulary Genetics Review

Master genetics vocabulary: heredity, genes, traits, alleles, and more. Essential for 8th-grade science.

Match the following terms with their definitions heredity the passing of genetic material from parent to offspring gene segments of DNA found in chromosomes that give instructions trait different forms of a characteristic. For example: curly hair, straight hair. allele alternative versions of the same gene; offspring inherit one from each parent genetics the study of heredity. "Gregor Mendel is known as the father of genetics. mutations Mistakes in DNA. Can be good, bad, or neutral Gametes Sex cells (egg or sperm) Punnett Square Diagram that can be used to predict the genotype and phenotype combinations of a genetic cross genotype the combination of alleles inherited from parents represented in LETTERS (GG) phenotype an organism’s physical appearance dominant the allele that is fully expressed whenever the allele is present in an individual. This is represented in a capital letter. recessive an allele that will be masked unless the organism is homozygous for the trait. This is represented by a lower case letter homozygous an organism containing two copies of the SAME allele for a particular trait heterozygous an organism that contains two DIFFERENT alleles for a particular trait Sort the following into the following categories: Homozygous FF tt AA bb QQ Heterozygous Ww Oo Kk Sort the following into the following categories: Genotype Bb WW tt Pp Phenotype Widow's Peak Tall Brown eyes Purple flowers