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
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]
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]
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
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 |
Pick out the correct statements.
$(1)$ Haemophilia is a sexlinked recessive disease.
$(2)$ Down’s syndrome is due to aneuploidy.
$(3)$ Phenylketonuria is an autosomal recessive gene disorder.
$(4)$ Sickle cell anaemia is an $X$-linked recessive gene disorder.
Pick out the correct statements.
$(1)$ Haemophilia is a sexlinked recessive disease.
$(2)$ Down’s syndrome is due to aneuploidy.
$(3)$ Phenylketonuria is an autosomal recessive gene disorder.
$(4)$ Sickle cell anaemia is an $X$-linked recessive gene disorder.
- [NEET 2016]
A man can inherit his $X-$chromosome from his
A man can inherit his $X-$chromosome from his