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The linkage map of the X-chromosome of fruitfly has 66 units, with yellow body gene (y) at one end and bobbed hair (b) gene at the other end. The recombination frequency between these two genes (y and b) should be:

The chromosomal theory of inheritance was proposed by:

Select the correct statement from the ones given below with respect to dihybrid cross:

The acceleration due to gravity on the planet A is $9$ times the acceleration due to gravity on planet B. A man jumps to a height of $2 \text{ m}$ on the surface of A. What is the height of jump by the same person on the planet B?

A molecule/ion among the following species that does not exist under normal conditions is:

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

Select the correct statements about sickle cell anemia: A: There is a change in the gene for beta-globin B: In beta-globin, there is a valine in place of Lysine C: It is an example of point mutation D: In the normal gene, U is replaced by A Choose the correct answer from the options given below:

Match List-I with List-II: List-I (Type of cross) (A) Monohybrid cross (B) Dihybrid cross (C) Incomplete dominance (D) Test cross List-II (Phenotypic ratio) (I) 1:1 (II) 1:2:1 (III) 3:1 (IV) 9:3:3:1

A body falling from a high Minaret travels $40 \text{ m}$ in the last $2 \text{ s}$ of its fall to the ground. The height of the Minaret in meters is: (take $g=10 \text{ m/s}^2$)

Match List-I with List-II.

Which of the following characteristics represent the 'Inheritance of blood groups' in humans?

Broad palm with single palm crease is visible in a person suffering from-

In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant type offspring. This indicates:

Which of the following pairs is wrongly matched?

A body is falling freely in a resistive medium. The motion of the body is described by $\frac{dv}{dt} = (4 - 2v)$, where $v$ is the velocity of the body at any instant (in $\text{m s}^{-1}$). The terminal velocity in this case refers to the velocity the body approaches as time $t \to \infty$. The initial acceleration and terminal velocity of the body, respectively, are:

Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as

Assuming that fur colour of an animal ranges from dark, intermediates shades, to white. A cross is made between a male (AABBCC) with dark fur colour and a female (aabbcc) with white fur colour. What would be the fur colour of F1 generation?

In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of black seed plant, with which of the following genotype will you cross it?

A cross in which an organism showing a dominant phenotype is crossed with the recessive parent in order to know its genotype is called:

The final proof for DNA as the genetic material came from the experiments of: