List of top five numerical problems on sex-linked inheritance. Q.1. Of what type will be the children with reference to colour blindness, when a man is colour-blind and his wife is normal? Solution: The cause of the colour blindness is the presence of recessive (c) gene on the X chromosome. Because man is colour-blind (XcY) and his wife is normal [...]
List of sixteen numerical problems on monohybrid cross. Q.1. What will be the appearance of (a) F1 and (b) F2 progenies when a pure (homozygous) tall pea plant is crossed with a pure (homozygous) dwarf pea plant? Tallness (T) gene is dominant over dwarfness (t) gene. Solution: Pure (homozygous) tall pea plant = TT Pure (homozygous) dwarf pea plant = [...]
The following points highlight the three main laws of genetics proposed by Mendel. The laws are: 1. Law of Dominance and Recessive 2. Factors and their Segregation 3. Dihybrid Cross. Law # 1. Law of Dominance and Recessive: Mendel designated dominant, the character which appears in F1 masking the effect of the factor for the other character, the character which [...]