Class 12BiologyPrinciples of Inheritance and VariationMix Examples- Principles of Inheritance and Variation
EasyThe $HLA$ antigen present on human white blood cells is expressed by which chromosome?
- A$4^{th}$ chromosome
- B$6^{th}$ chromosome
- C$21^{st}$ chromosome
- D$22^{nd}$ chromosome
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The offspring from a cross between two individuals differing in at least one set of characters is called
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View SolutionWhich of the following is a dominant trait?
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View SolutionWhat is true for the expression of recessive characters?
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View SolutionWhich of the following phenomena leads to variation in $DNA$?
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View SolutionMatch the following columns correctly:
Column-$I$ Column-$II$ $(a)$ $1 : 2 : 1$ $(i)$ Test cross $(b)$ $3 : 1$ $(ii)$ Law of Dominance $(c)$ $9 : 3 : 3 : 1$ $(iii)$ Incomplete Dominance $(d)$ $1 : 1 : 1 : 1$ $(iv)$ Law of Independent Assortment $(v)$ Law of Segregation
| Column-$I$ | Column-$II$ |
| $(a)$ $1 : 2 : 1$ | $(i)$ Test cross |
| $(b)$ $3 : 1$ | $(ii)$ Law of Dominance |
| $(c)$ $9 : 3 : 3 : 1$ | $(iii)$ Incomplete Dominance |
| $(d)$ $1 : 1 : 1 : 1$ | $(iv)$ Law of Independent Assortment |
| $(v)$ Law of Segregation |
Medium
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