Class 12BiologyPrinciples of Inheritance and VariationMix Examples- Principles of Inheritance and Variation
EasyWhat is $HbA_2$ composed of?
- A$\alpha_2 \beta_2$
- B$\alpha_2 \gamma_2$
- C$\alpha_2 \delta_2$
- D$\alpha_2 \alpha_2$
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Similar Questions
If a modified allele produces a non-functional enzyme or no enzyme,then the phenotype will not be affected in which of the following cases?
Medium
View SolutionWhich of the following is an example of codominance?
Medium
View SolutionTheoretically,the phenotype is expressed only when an enzyme converts a substrate into its product. During which of the following conditions is the phenotype affected?
Match the terms in Column-$I$ with their descriptions in Column-$II$ and select the correct option.
Column-$I$ Column-$II$ $(A)$ Dominance $(1)$ Many genes govern a single character. $(B)$ Co-dominance $(2)$ In a heterozygous organism, only one allele expresses itself. $(C)$ Pleiotropy $(3)$ In a heterozygous organism, both alleles express themselves fully. $(D)$ Polygenic inheritance $(4)$ $A$ single gene influences many characters.
| Column-$I$ | Column-$II$ |
| $(A)$ Dominance | $(1)$ Many genes govern a single character. |
| $(B)$ Co-dominance | $(2)$ In a heterozygous organism, only one allele expresses itself. |
| $(C)$ Pleiotropy | $(3)$ In a heterozygous organism, both alleles express themselves fully. |
| $(D)$ Polygenic inheritance | $(4)$ $A$ single gene influences many characters. |
Medium
View SolutionMatch the items of column $I$ with column $II$:
Column $I$ Column $II$ $(a) XX-XO$ method of sex determination $(i)$ Turner's syndrome $(b) XX-XY$ method of sex determination $(ii)$ Female heterogametic $(c)$ Karyotype $45$ $(iii)$ Grasshopper $(d) ZW-ZZ$ method of sex determination $(iv)$ Female homogametic
Select the correct option from the following:
| Column $I$ | Column $II$ |
| $(a) XX-XO$ method of sex determination | $(i)$ Turner's syndrome |
| $(b) XX-XY$ method of sex determination | $(ii)$ Female heterogametic |
| $(c)$ Karyotype $45$ | $(iii)$ Grasshopper |
| $(d) ZW-ZZ$ method of sex determination | $(iv)$ Female homogametic |
Select the correct option from the following:
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