CBSE 12 Biology Question Paper-2020 Set-4

Which one of the following is not found in a female gametophyte of an angiosperm?

The autosomal disorder/disease in humans is

Choose the chromosome, in a human, that possesses the least number of genes.

Filiform apparatus in the embryo sac of an angiosperm is present at the micropyler tip of

It is observed that, the species diversity decreases as we

Which of the following is a non-renewable resource?

The process of conversion of glucose to ethanol is called

In which phase of cell division, chromosomal material is duplicated?

Which of the following is responsible for the exchange of gases in plants?

Which organelle is responsible for protein synthesis?

Which of the following is an example of a monocot plant?

Which of the following is an example of a biotic factor in an ecosystem?

The process by which green plants prepare food is called

Which of the following processes occurs in the mitochondria?

Which is the longest phase of the cell cycle?

Which of the following is a characteristic of prokaryotic cells?

What is the primary function of phloem in plants?

Which of the following is a direct result of cellular respiration?

Which of the following is an example of a genetic disorder?

The oxygen we breathe is produced by which of the following?

Which of the following is not a plant hormone?

Which part of the plant absorbs most of the water and minerals from the soil?

Which organ is responsible for filtering blood?

Which part of the brain controls balance and coordination?

What is the primary role of red blood cells?

Which of the following is not a function of the liver?

Which of the following organs is involved in the production of digestive enzymes?

Which of the following is a function of white blood cells?

Which system in the human body is responsible for the production of hormones?

The main function of the circulatory system is to