If gene exchange rate is $30\%$ of the two linked genes, then the distance between these two genes is

  • A

    $30$ unit

  • B

    $15$ unit

  • C

    $60$ unit

  • D

    $45$ unit

Similar Questions

In a certain plant, red flowers $(R)$ are dominant to white flowers $(r)$ and tallness $(T)$ is dominant to dwarfness $(t)$. A heterozygous plant $(RrTt)$ is backcrossed with a double recessive plant $(rrtt)$. If the gene loci for colour and size and situated very close together on the same chromosome, the expected percentage of offsprings could be approximately

tall red

tall white

dwarf red

dwarf white

 respectively

Crossing over in diploid organism is responsible for

  • [AIPMT 1998]

Two heterozygous parents are crossed. If the two loci are linked what would be the distribution of phenotypic features in $\mathrm{F}_{2}$ generation for a dihybrid cross?

The linkage map of $X$-chromosome of fruit fly has $66$ units with yellow body gene $(y)$ at one end and bobbed hair $(b)$ gene at the other end. The recombination frequency between these two genes ($y$ and $b$) should be

  • [AIPMT 2003]

The theory of recombination of linked gene due to crossing over of chromosome during zygotene of meiosis was put forwarded by