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]
  • A

    $A-(iv),B-(i),C-(ii),D-(iii)$

  • B

    $A-(iv),B-(iii),C-(i),D-(ii)$

  • C

    $A-(ii),B-(i),C-(iv),D-(iii)$

  • D

    $A-(ii),B-(iii),C-(iv),D-(i)$

Similar Questions

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]

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.

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]

Which of the following characteristics represent ‘Inheritance of blood groups’ in humans?
$(a)$ Dominance
$(b)$ Co-dominance
$(c)$ Multiple allele
$(d)$ Incomplete dominance
$(e)$ Polygenic inheritance

  • [NEET 2018]

Choose correct answer :

$(i)$ Queen Elizabeth shows a number of haemophilic descendents.

$(ii)$ Variation in blood group prevalences due to incomplete dominance.

$(iii)$ Drosophila has three pairs of autosomal chromosomes.

$(iv)$ In birds, female is heterozygous.