CUET Biology Mock Test: [Absolutely free test website with instant result]

The method of producing thousands of plants through tissue culture is called as:

Which of the following is NOT a category of waste generated by human beings in daily practice?

Fresh water animals cannot live for long in sea water and vice versa as they face:

Identify the organism which is a source of single cell protein and is grown on commercial scale.

Which of the following statements are correct regarding decomposition?
A. Decomposition is largely oxygen-requiring process
B. The rate of decomposition is controlled by chemical composition of detritus and climatic factors
C. Dry and cold environment favour the decomposition
D. If detritus is rich in lignin and chitin, the decomposition rate is faster
Choose the correct answer from the options given below:

Out of the following which one is not a hermaphrodite?

Select the correct statement/s from the following:
A. Spermatogonia always undergo meiotic cell division.
B. Primary spermatocytes divide by mitotic cell division.
C. Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
D. Spermatozoa are transformed into spermatids.
Choose the correct answer from the options given below:

The natural interconnections of food chain is :

Inbreeding is carried out in animal husbandry because it:

Which of the following metal cannot be recovered from manual recycling process of e-wastes?

Select the hormone which is not secreted by human placenta?

Antibiotic resistance gene in a vector helps in the selection of :

Mammals are able to survive in Antarctica or in the Sahara Desert as they are

Single step large mutation leading to speciation is also called:

Mature mRNA is a fully processed -----

The first instance of construction of an artificial recombinant DNA molecule was carried out on the plasmid of

Which forest also known as the 'lungs of the planet earth'?

Which is known as ‘Terror of Bengal’?

Bt toxin produced by Bacillus thuringiensis is resistant to:

In gel electrophoresis the separated DNA fragments can be visualised:

Read the passage and answer the question given below.
Exposure of a host to antigens, whether from living or deceased microbes or other proteins, triggers the production of antibodies within the host's body, resulting in what is known as active immunity. Active immunity operates gradually, requiring time to reach its full effectiveness. Introducing microbes deliberately through immunization or through natural infection allows for the induction of active immunity. Conversely, when antibodies are administered directly to shield the body against foreign agents, it constitutes passive immunity. Colostrum, produced by the mother during the initial stages of lactation, offers passive immunity due to its richness in antibodies.

Exposure to antigens, whether from living or deceased microbes or other proteins, prompts the host body to produce antibodies, resulting in active immunity. Active immunity operates gradually, requiring time to achieve its full effectiveness. The deliberate injection of microbes during immunization or the infiltration of infectious organisms into the body during natural infection induces active immunity. Conversely, when antibodies are administered directly to shield the body against foreign agents, it is referred to as passive immunity.
Which of the following is passive immunisation?

Arrange the following events in correct sequence.
A. Formation of zygote
B. Formation of blastocyst
C. Implantation
D. Formation of morula
Choose the correct answer from the options given below:

In which process unusual nucleotide (methyl guanosine triphosphate) is added to the 5' end of hnRNA.

(p+q)² = p² + 2pq + q² = 1 represents Hardy Weinberg equation. It is used in:

Succession occurring after flood is:

In some organisms, male has ZZ chromosomes and female has ZW chromosomes. This type of sex-determination is found in:

The puffed up appearance of dough is due to the production of :

Threatened animals and plants are taken out from their natural habitat and placed in special settings, protected and given special care is

Parthenogenesis does not occur in:

Identify the terminal method used to prevent pregnancy is:

Select the statements which do not hold true for Cancer:
A. Cancerous cells show a property of contact inhibition.
B. Metastasis is the most feared property of malignant tumors.
C. Malignant tumor cells invade and damage the surrounding tissue.
D. Malignant tumor cells grows slowly.
Choose the correct answer from the options given below :

Which of the following area is India’s one of the biodiversity hot spots?

Which of the following is used to make the bacterial cell as ‘Competent cell’ to take up DNA?

In DNA N-glycosidic linkage is present between ----.

Biofertilisers are the organisms that enrich the nutrient quality of the soil. Which of the following is not a source of biofertiliser?