Select the incorrect statement(s) from the options given below with respect to dihybrid cross.

$I.$ Tightly linked genes on the same chromosome show higher recombinations.

$II.$ Genes far apart on the same chromosome show very few recombinations.

$III.$ Genes loosely linked on the same chromosome show similar recombinations.

Alleles of different genes that are on the same chromosome may occasionally be separated by a phenomenon known as

Mendel observed that some characters did not assort independently. Later researchers found it to be due to

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

 respectively

Genetic map is one that

In Mendelism, linkage was not observed due to