NEET UG 2002 — Principles of Inheritance and Variation

There are three genes $\mathrm{a}, \mathrm{b}$ and $\mathrm{c}$. The 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?

Sequence of which of the following is used to know the phylogeny?

Which of the following is the example of pleiotropic gene?

A gene is said to be dominant if:

Which of the following is the example of sex-linked disease?

Change in the sequence of nucleotide in DNA is called as:

Which of the following is a correct match?

Reason of fast speciation in present-day crop plants is:

A diseased man marries a normal woman. They get three daughter and five sons. All the daughter were diseased and sons were normal. The gene of this disease is:

A plant is of $F_1$ generation with genotype "AABbCC". On selfing of this plant what is the phenotypic ratio in $\mathrm{F}_2$ generation?