9. Individuals of genotypes AaBb were mated to individuals of genotype aabb. One thousand offspring were counted with the following results: 474 Aabb, 480 aaBb, 20 AaBb, 26 aabb ● ● a. What is the general term for this type of genetic cross (when a parent is mated with another that has all recessive traits)? b. Are these genes linked? c. If these genes are linked, identify the parental genotypes and the recombinant genotypes. d. If these genes are linked, how many map units apart are they? e. Draw a chromosome map for the AaBb parent showing the position of the genes, the appropriate alleles and the map distance between the genes.

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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.