What is the correct sequence of the following events
$1.$Formation of the chromosome theory of heredity
$2.$Experiments which proved that $DNA$ is the hereditary material
$3.$Mendel's laws of inheritance-discovery
Code :
What is the correct sequence of the following events
$1.$Formation of the chromosome theory of heredity
$2.$Experiments which proved that $DNA$ is the hereditary material
$3.$Mendel's laws of inheritance-discovery
Code :
- A
$1, 3$ and $2$
- B
$1, 2$ and $3$
- C
$3, 1$ and $2$
- D
$2, 1$ and $3$
Similar Questions
Select incorrect statement
$(A)$ Linked genes cause absolute lethality
$(B)$ Persons affected by $PKU$ do not show mental disorder
$(C)$ $F_{2}$ ratio in codominance and incomplete dominance are same
$(D)$ Sex of male Drosophila is dependent on $Y-$chromosome
Select incorrect statement
$(A)$ Linked genes cause absolute lethality
$(B)$ Persons affected by $PKU$ do not show mental disorder
$(C)$ $F_{2}$ ratio in codominance and incomplete dominance are same
$(D)$ Sex of male Drosophila is dependent on $Y-$chromosome
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
$(d)\; 3:1$
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 | $(d)\; 3:1$ |
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 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 |
- [AIIMS 2019]
Which of the following is true about linkage
$I.$ It is phenomenon in which more recombinants are produced in $F_{2}$-generation
$II.$ More parental combination are produced in $F_{2}$-generation
$III.$ Genotype which are present in $F_{1}$ hybrid. Reappear in high frequency in $F_{2}$-generation
$IV.$ It is a phenomenon in which two chromosome are linked
Which of the following is true about linkage
$I.$ It is phenomenon in which more recombinants are produced in $F_{2}$-generation
$II.$ More parental combination are produced in $F_{2}$-generation
$III.$ Genotype which are present in $F_{1}$ hybrid. Reappear in high frequency in $F_{2}$-generation
$IV.$ It is a phenomenon in which two chromosome are linked
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
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 |
- [NEET 2016]