Mendel Law YouTube Lecture Handouts
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3 Mendelian Laws of Inheritance - Fundamentals of Genetics
Mendel՚s Laws of Inheritance
- How Mendel began his work
- Law of Dominance
Hybrids show Dominant trait (Phenotype)
- Law of Segregation
Each allele retain itself distinct identity even though they remain together
- When dominant AA and recessive aa is crossed, the percentage ratio of the hybrid showing the parental genotypes is
(A) 0% (B) 25% (C) 50% (D) 75%
- Which cross would produce phenotypic ratios that would illustrate the Law of Dominance?
How many gametes would be formed from Aa Bb Cc?
- How many gametes would be formed from Aa Bb cc?
Law of Independent Assortment pendent Assortment
when two pairs of traits are combined in a hybrid, segregation of one pair
of characters is independent of the other pair of characters
How many different types of phenotypes would be formed from a cross of RrYy x RrYy?
Assuming complete dominance, what is the phenotypic ratio of the offspring of the cross
(a) 1: 1 (b) 3: 1 (c) 1: 1: 1: 1 (d) 9: 3: 3: 1
- AA, Aa-Red
- aa-white
- BB-, Bb-Big
- bb-small
✍ Manishika