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
$(1), (3)$ and $(4)$ are correct.
- B
$(1), (2)$ and $(3)$ are correct.
- C
$(1) $ and $(4) $ are correct.
- D
$(2)$ and $(4)$ are correct.
Similar Questions
Select the correct statement:
Select the correct statement:
- [NEET 2018]
Marriages between close relatives and cousins is not advisable because
Marriages between close relatives and cousins is not advisable because
How many sentence are correct ?
$(i)$ Every gene contains the information to express a particular trait.
$(ii)$ Gene responsible for $\beta$ - thalassemia is present on $21^{st}$ pair of autosomal chromosome.
$(iii)$ Mendel's approach of using mathematics to explain biological phenomena was totally new and unacceptable to many of the biologists of his time.
How many sentence are correct ?
$(i)$ Every gene contains the information to express a particular trait.
$(ii)$ Gene responsible for $\beta$ - thalassemia is present on $21^{st}$ pair of autosomal chromosome.
$(iii)$ Mendel's approach of using mathematics to explain biological phenomena was totally new and unacceptable to many of the biologists of his time.
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 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 |