Class 12BiologyPrinciples of Inheritance and VariationMix Examples- Principles of Inheritance and Variation
MediumMatch the following columns:
Column-$I$ Column-$II$ $A$. Mendel $i$. Allele $B$. Bateson $ii$. Factors $C$. Johannsen $iii$. Chromosome $D$. Sutton and Boveri $iv$. Gene
| Column-$I$ | Column-$II$ |
|---|---|
| $A$. Mendel | $i$. Allele |
| $B$. Bateson | $ii$. Factors |
| $C$. Johannsen | $iii$. Chromosome |
| $D$. Sutton and Boveri | $iv$. Gene |
- A$A-iv, B-ii, C-iii, D-i$
- B$A-iii, B-i, C-iv, D-ii$
- C$A-i, B-iii, C-ii, D-iv$
- D$A-ii, B-i, C-iv, D-iii$
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In hexaploid wheat, what are the haploid $(n)$ and basic $(x)$ chromosome numbers?
Medium
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
View SolutionMatch the terms in column-$I$ with their description in column-$II$ and choose the correct option.
Column-$I$ Column-$II$ $(A)$ Dominance $(i)$ Many genes govern a single character $(B)$ Codominance $(ii)$ In a heterozygous organism only one allele expresses itself $(C)$ Pleiotropy $(iii)$ In a heterozygous organism both alleles express themselves fully $(D)$ Polygenic inheritance $(iv)$ $A$ single gene influences many characters
| Column-$I$ | Column-$II$ |
|---|---|
| $(A)$ Dominance | $(i)$ Many genes govern a single character |
| $(B)$ Codominance | $(ii)$ In a heterozygous organism only one allele expresses itself |
| $(C)$ Pleiotropy | $(iii)$ In a heterozygous organism both alleles express themselves fully |
| $(D)$ Polygenic inheritance | $(iv)$ $A$ single gene influences many characters |
MediumNEET 2016
View SolutionIn an organism,pink spot is a sex-linked recessive trait and black hair is dominant to white. If a pink spotted black heterozygous female is mated to a white male which is not spotted,the phenotypic ratio of the offspring would be
Medium
View SolutionExplain the following terms with examples:
$(a)$ Co-dominance
$(b)$ Incomplete dominance
$(a)$ Co-dominance
$(b)$ Incomplete dominance
Medium
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