25. a)What is “dihybrid cross”? b) Consider two traits color and height. For color, let Y=yellow be dominant over y=green; for height, let T=tall be dominate over t=short. i. Set up the P1 generation  ii. enumerate the possible gametes in the sex cells iii. Put the possible gametes along the top and sides of a Punnett square. iv. Hence, or otherwise, find a) the proportion (in percentage) of the F1 are yellow and tall with genotype YyTt b) The probability of obtaining, the genotype YyTt

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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.