NEET UG 2004 — Principles of Inheritance and Variation

The recessive genes located in $X$ chromosome humans are always:

A self-fertilizing trihybrid plant forms:

In mutational event, when adenine is replaced by guanine. it is a case of:

A nutritionally wild type organism, which does not required any additional growth supplement is known as:

In a plant, red fruit $(R)$ is dominant over yellow fruit $(r)$ and tallness $(T)$ is dominant over shortness $(t)$. If a plant with RRTt genotype is crossed with a plant that is rrtt,

In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be:

Lack of independent assortment of two genes A and B in fruit fly Drosophila is due to:

Extranuclear inheritance is the consequence of presence of genes in:

A male human is heterozygous for autosomal genes $\mathrm{A}$ and $\mathrm{B}$ and is also hemizygous for hemophilic gene $h$. What proportion of his sperms will be $a b h$ ?

One of the parents of a cross has a mutation in its mitochondria. In that cross, that parent is taken as male. During segregation of $\mathrm{F}_2$ progenies that mutation is found in:

Crossing over that results in genetic recombination in higher organisms occurs between:

A normal woman, whose father was colour-blind is married to a normal man. The sons would be: