Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
The time of reverberation of a room $A$ is one second. What will be the time (in seconds) of reverberation of a room, having all the dimensions double those of room $A$?
The best example of pleiotropy is:
Alleles are:
XO type of sex determination can be found in:
Select the correct statement from the ones given below with respect to dihybrid cross:
The chromosomal theory of inheritance was proposed by:
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?