Genetics Vocab Practice

Ace genetics vocab & Punnett squares! Practice genotype, phenotype, dominant/recessive traits.

Matching Match the term with the correct definition Heterozygous two different alleles, a hybrid (Tt) Heredity The passing of characteristics from parent to offspring Genotype The type of genes or alleles present in an organism Dominant The type of gene that always shows even in the presence of a recessive allele Recessive The type of gene that only shows if the dominant allele is absent. Phenotype physical apprearance of the trait Homozygous two of the same alleles, (purebred TT, tt) Alleles Different versions of the same gene, represented by letters (A, a) Phenotype practice - For each of the genotypes, determine the phenotype. Purple flowers are dominant to white flowers. Genotype Phenotype PP purple Pp purple pp white Mendelian Genetics - Fill in the blank with the correct term(s) 1. Punnett Squareis a table used to diagram the probability of getting certain genotypes.2. A monohybridcross looks at only one trait.3. The Law of Segregationstates that the 2 alleles for each trait separate as gametes form.4. The Law of Dominancestates that certain alleles overshadow other alleles in showing traits. Mendelian Genetics - Fill in the blank with the correct term(s) The F1 generation is the result of the P generation cross.Homozygous genotypeis when the alleles in a pair are identical / the same (TT or tt).Allelesare versions of genes that occupy the same locus (position on a chromosome) on homologous chromosomes and determine the variation of the same characteristic.The F2 generationis the results of the F1 generation cross.A Genomeis the whole of the genetic information of an organism.Hybridmeans the same as heterozygous.A Phenotype is the physical appearance of an organism, represented by descriptions.P generationis the parent generation of a genetic cross.A recessive allele is an allele whose effects are hidden by a dominant allele, represented with a lower-case letter. State the genotype. For each genotype, indicate whether it is heterozygous, homozygous dominant, or homozygous recessive. Genotype Answer AA Homozygous dominant Ee Heterozygous Hh Heterozygous LL Homozygous dominant bb Homozygous recessive Qq Heterozygous State the phenotype. Round seeds are dominant to wrinkled. Genotype Phenotype RR round Rr round rr wrinkled State the genotype. Pointed = TRound = t Phenotype Gentotype Pointed (homozygous) TT Pointed (heterozygous) Tt Round tt Punnett Square Practice Both parents are homozygous tall (dominant allele). Correctly fill in the punnett square. Extra Space T T T TT TT T TT TT What are the chances offspring will be short? 100% 50% 25% 75% 0% One parent is heterozygous for their brown eyes while the other is homozygous for blue. Complete the cross and find the offspring. Extra Space B b b Bb bb b Bb bb What are the chances offspring will have blue eyes? 100% 50% 25% 75% 0%