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

  • A

    Only $I$

  • B

    Only $II$

  • C

    $I$ and $III$

  • D

    $III$ and $IV$

Similar Questions

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 :

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 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

Which of the following pairs is $wrongly$ matched?

  • [NEET 2018]

Marriages between close relatives and cousins is not advisable because