Principle of inheritance and variation practice · Mixed difficulty

What is the probability of production of dwarf offsprings in a cross between two heterozygous tall pea plants.

Frequency of recombination between gene pairs on same chromosome as a measure of the distance
between genes to map their position on chromosome, was used for the first time by

Human females have

Pedigree analysis indicated that Mendel’s principal are also applicable to …A… genetics with some modifications find out like …B… inheritance, sex linked inheritance and others.
Choose the correct option for $A$ and $B$

Probability of genotype TTrr in ${\mathrm{F}_2}$-generation of a dihybrid cross is

An individual homozygous for genes $\text{cd}$ is crossed with wild type and $F_1$ crossed back with
the double recessive. The appearance of the offspring is as follows.
$\begin{array}{cccccccccccccccccccc} { + + }& \to &{903} \\ {{\text{cd}}}& \to &{897} \\ { + {\text{d}}}& \to &{98} \\ {{\text{c}} + }& \to &{102} \end{array}$
The distance between the genes $\text{c}$ and $\text{d}$ is

Which of the following statement is true for colour blindness?

Blood grouping is the example of

Jumping genes in maize were discovered by

Mendelism was rediscovered by
I. Morgan
II. De Vries
III. Correns
IV. Tschermark
Choose the correct option

Linkage group in E .coli is/are

Emasculation is the removal of

Choose the incorrect statement regarding $F_2$ generation of Mendelian dibybrid cross.

In fruit flies, dumpy wings are shorter and broader than normal wings. The allele for normal wings (D) is dominant to the allele for dumpy wings (d). Seventy five normal-winged and twenty five dumpy-winged flies. The genotype of parents would be

In the previous question, find out the chances of fifth child to be albino

The total number of progeny obtained through dihybrid cross of Mendel is 1280 in ${\mathrm{F}_2}$-generation. How many are recombinants?

Who clearly proved and define linkage?

Assertion (A): In a person with AB-blood group, the erythrocytes carry both A and B antigen on their surface.

Reason (R): The alleles $\mathrm{I}^{\mathrm{A}}$ and $\mathrm{I}^{\mathrm{B}}$ that produce AB blood group are codominant and both are expressed.

Sexual reproducation leads to

A pure tall and a pure dwarf plant were crossed to produced offsprings. Offsprings were self crossed, then find out the ratio between true breeding tall to true breeding dwarf?

A marriage between normal visioned man and colourblind woman will produce, which of the following types of offspring’s?

In case of incomplete dominance, what will be the phenotypic ratio of ${F_2}$generation?

How many pairs of contrasting characters in pea pod were chosen by Mendel?

Incomplete linkage is …A… . Complete linkage is …B… . Choose correct option for A and B

The phenotype of F1 hybrid resemble both of the parents in

Principle or laws of inheritance were enunciated by

A plant heterozygous for three allelic pairs, undergoes selfing, then how many genotypes regarding these alleles will be produced in $F_1$ generation?

Mendel was a

Which one of the following was the rediscoverer of Mendel’s work?

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