Name: Section: Worksheet 3 Extensions of Mendelian Genetics1) The accompanying figure is a pedigree of a fairly common human hereditary trait in which the boxes represent males and the circles represent females. Shading symbolizes the abnormal phenotype. Given that one gene pair is involved:a) Is the inheritance pattern X-linked or autosomal, recessive or dominant?b) Give the genotype of each individual in the pedigree. If more than one genotypic possibility exists, present all possible alternatives.2) Is the inheritance pattern X-linked or autosomal, recessive or dominant? Explain.13) Is the inheritance pattern X-linked or autosomal, recessive or dominant? Explain. 4) Is the inheritance pattern X-linked or autosomal, recessive or dominant? Explain. 5) A situation in which there are more than two alternative forms of a given gene would be called ________.A) multiple allelesB) alternation of generationsC) codominanceD) incomplete dominanceE) hemizygosity26) How many different alleles can a gene have?7) What distinguishes sex-limited from sex-influenced inheritance? Explain. 8) (a) In a three-point mapping experiment, what three general classes of offspring are expected (assuming crossovers occur)? (b) How many different genotypic classes are expected?9) Two different female Drosophila were isolated, each heterozygous for the autosomally linked genes b (black body), d (dachstarsus), and c (curved wings). These genes are in the order d–b–c, with b being closer to d than to c. Shown below is the genotypic arrangement for each female along with the various gametes formed by both:Identify which categories are noncrossovers (NCOs), single crossovers (SCOs), and double crossovers (DCOs) in each