Frequency of crossing over in a chromosome is an index of

  • A

    Relative distance between its genes only

  • B

    Structural affinity between its genes only

  • C

    Strength linkage between its genes only

  • D

    $(a)$ and $(b)$ both are correct

Similar Questions

Which of the following statements is not trueof two genes that show $50\%$ recombination frequency ?

  • [NEET 2013]

There are three genes $a,\,b,\,c$. Percentage of crossing over between $a$ and $b$ is $20\%$, $b$ and $c$ is $28\%$ and $a$ and $c$ is $8\%$. What is the sequence of genes on chromosome ?

  • [AIIMS 2015]

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

When two genes are situated very close to each other in a chromosome

  • [AIIMS 1980]

Give differences : Crossing over and Linkage