CBSE 12 Biology Question Paper-2024 Set-4

In a fertilized ovule of an angiosperm, the cells in which n, 2n and 3n conditions respectively occur are:

Select the option that gives the correct identification of ovum, morula and blastocyst in a human female reproduction system as shown in the following diagram:

Select the option where contraceptive/contraceptive method are correctly matched with their mode of action.

Which of the options has correct identification of 'P', 'Q' and 'R' in the illustration of 'Central Dogma' given below?

Turner's syndrome in humans occurs due to

Select the option that gives the correct identification of 'A', 'B' and 'C' in the illustration of 'Transverse Section of a young anther of an angiosperm' given below:

Turner's syndrome in humans occurs due to

Which of the options has correct identification of 'P', 'Q' and 'R' in the illustration of 'Central Dogma' given below?

Identify the category of genetic disorder depicted in the pedigree chart given below:

Which was the last of the 24 human chromosome to be completely sequenced?

What is the process of shedding of the uterine lining along with blood known as?

Where does fertilization typically occur in humans?

Which hormone is responsible for maintaining the lining of the uterus during pregnancy?

Which of the following is an example of an oviparous animal?

What is the pH of semen?

The synthesis of proteins involves the polymerization of:

The genetic material of a bacterial virus that enters the host cell is:

Which enzyme is responsible for adding telomeres at the ends of eukaryotic chromosomes?

Which of the following statements is true about DNA replication?

The ability of a cell to divide into two equal daughter cells is called: