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4.Principles of Inheritance and Variation
medium
Match the following columns.
| Column $- I$ | Column $- II$ |
| $(w)$ Blood group | $(a)$ Polygenic inheritance |
| $(x)$ Skin colour | $(b)$ Aneuploidy |
| $(y)$ Mendelian disorder | $(c)$ Incomplete dominance |
| $(z)$ Chromosomal disorder | $(d)$ Sickle-cell anaemia |
| $(e)$ Co-dominance |
A
$w-e, x-a, y-d, z-b$
B
$w-c, x-a, y-d, z-b$
C
$w-a, x-b, y-c, z-d$
D
$w-b, x-c, y-d, z-e$
Solution
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Standard 12
Biology
Similar Questions
Match the following:
| Column $- I$ | Column $- II$ |
| $(1)$ Inheritance of two genes | $(a)\; ABO$ blood group |
| $(2)$ Incomplete dominance | $(b)\; 1:2:1$ |
| $(3)$ Codominance | $(c)\;9:3:3:1$ |
| $(4)$ Inheritance of one gene | $(d)\; 3:1$ |
medium
Match the Column – $I$ with $II$
| Column – $I$ | Column – $II$ |
| $(a)$ Pleiotropic gene | $(i)$ Both allele express equally |
| $(b)$ Co-dominance | $(ii)$ Change in nucleotide |
| $(c)$ Epistasis | $(iii)$ One gene shows multiple phenotypic expression |
| $(d)$ Mutation | $(iv)$ Rust disease |
Match the terms in column $I$ with their description in column $II$ and choose the correct option.
| Column $-I$ | Column $-II$ |
| $(A)$ Dominance | $(i)$ Many genesgovern a single character |
| $(B)$ Codominance | $(ii)$ In a heterozygousorganism only one allele expresses itself |
| $(C)$ Pleiotropy | $(iii)$ In a heterozygousorganism both alleles express themselves fully |
| $(D)$ Polygenic | $(iv)$ A single gene inheritanceinfluences many characters |
