10. Examine the pedigree from a family with a genetic disease and answer the questions below: 1:1 1:2 Il:1 I1:2 I1:3 I1:4 I1:5 I1:6 II:1 II:2 II:4 II:5 a) Does this pedigree indicate autosomal dominant, recessive or sex- linked type of inheritance? Give reasons for your choice. b) Assuming that B and b are the normal and mutant alleles respectively, what would be the genotypes of the individuals: П.1, П.2 and II.З ? c) Individual II.3 requested genetic counselling. What is the probability that her child would be affected. Explain why.

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.