Explore topic-wise MCQs in Biology.

This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

4201.

In which of the following plant Bt toxin gene is expressed?

A. Bt cotton
B. Bt corn
C. Bt Bringal
D. All the above
Answer» B. Bt corn
4202.

Which therapy is used for modification of germ cells (sperms and eggs)?

A. sperm line therapy
B. Germ line therapy
C. Egg line therapy
D. Germ line gene therapy
Answer» E.
4203.

Which technology was used to produce human Insulin in E. coli ?

A. Gene therapy
B. Recombinant gene technology
C. Polymerase chain reaction
D. All the above
Answer» E.
4204.

In which therapy, vectors are used to introduce desired gene into the body of patients?

A. In vivo, gene therapy
B. Germ line therapy
C. Ex vivo gene therapy
D. Foreign gene therapy
Answer» B. Germ line therapy
4205.

Where from Bt toxin gene has been obtained?

A. plant
B. virus
C. Bacteria
D. Fungi
Answer» D. Fungi
4206.

The animals whose genome is altered by introduction of transgene is known as -

A. modified animal
B. Hybrid animals
C. cross breed animals
D. Transgenic animal
Answer» E.
4207.

Bt stands for -

A. Biotechnology
B. Bacteria tolerant
C. Bacillus thuringiensis
D. Bollworm toxin
Answer» D. Bollworm toxin
4208.

Edible marine fishes are

A. Hilsa, Pomfret, Catla
B. Catla, Mackerel, Mrigal
C. Sardin, Mackerel, Mrigal
D. Sardin, Pomfret, Mackerel
Answer» E.
4209.

The hybridization to obtain higher level of protein and minerals is..........

A. Pasturization
B. Biofortification
C. Antibiosis
D. Symbiosis
Answer» C. Antibiosis
4210.

Which is corrcet for plant breeding.

A. Collection of variabilityselection of recombinationhybridization among parentstesting and commercilization of new cultivation.
B. Collection of variabilityselection of parentshybridization among parents selection of recombinationtesting and commercialization of new cultivation.
C. Selection of recombinationcollection of variabilityselection and hybridization of parentstesting and commercialization of new cultivation.
D. Selection of parentshybridization among parentscollection of variability selection of recombinationtesting and commercialization of new cultivation.
Answer» C. Selection of recombinationcollection of variabilityselection and hybridization of parentstesting and commercialization of new cultivation.
4211.

Callus is obtaind during which time in tissue cultare ?

A. 2 to 3 days
B. 2 to 3 months
C. 2 to 3 weeks
D. 2 to 3 hours
Answer» D. 2 to 3 hours
4212.

Which is improper pair ?

A. Breeding female honey bee - Worker
B. Non breeding female hoey bee - Worker
C. Breeding male honey bee - Drone
D. Breeding female honey bee - Queen
Answer» B. Non breeding female hoey bee - Worker
4213.

Which microorganism produces same quantity of protein per day ?

A. Spirokits helophylls
B. Methenogens
C. Methylophillus methylotrophs
D. Thermo acidophylls
Answer» D. Thermo acidophylls
4214.

Which method can be used for hybrid plantlet of interspecific ?

A. Embryo culture
B. Tissue culture
C. Suspension culture
D. Callus culture
Answer» B. Tissue culture
4215.

Which type of hybridization is done for mule ?

A. In breeding hybridization
B. Out breeding hybridization
C. Inter specific hybridization
D. Intra specific hybridization
Answer» E.
4216.

At temperature is carried for the explant in tissue cultare?

A. 02.4oc
B. 0.24oc
C. 024.0oc
D. 0240oc
Answer» D. 0240oc
4217.

Who is known as the father of modern bee science ?

A. Fahian
B. Kurian
C. Whenson
D. Huber
Answer» E.
4218.

Which sentence is not proper for the uses of single cell protein ?

A. Use as human or animal protein supplement
B. At’s utilization reduces enviornmental pollution
C. Use as a production of human gene
D. At has a high contens of protein, lipid, carbohycrate & vitamins
Answer» D. At has a high contens of protein, lipid, carbohycrate & vitamins
4219.

Which substance is twice amount of in maize hybrids.

A. Lysine
B. Leusine
C. Iso leusine
D. Glycine
Answer» B. Leusine
4220.

Cattle keepers are in center position in dairy industry because........

A. They carries good varieties of cattles.
B. They prepare different type of milk products.
C. Their products are sold at national in dairy industry.
D. They have brought white revolution in dairy industry.
Answer» B. They prepare different type of milk products.
4221.

The plant tissue or organ that produce callus by division is called.......

A. Explant
B. Sepling
C. Embryo
D. Clone
Answer» B. Sepling
4222.

The cow contain 250 kg weight produce how much protei=n per day.

A. 250 gm
B. 250 kg
C. 200 gm
D. 200 kg
Answer» D. 200 kg
4223.

In which method rotary shaker is used ?

A. Embryo culture
B. Biofortification
C. Suspension culture
D. Symbiosis
Answer» E.
4224.

In which plant the seeds do not contain stored food ?

A. Atropa beladona
B. Canbis sataiva
C. Orchids
D. Opium
Answer» D. Opium
4225.

Where Imperial Veterinary Research Institute is located ?

A. New delhi
B. Izatnagar
C. Channai
D. Kolkata
Answer» C. Channai
4226.

What is carried out in apiary (apiculture) ?

A. Honey bee brings nectar
B. Manufacture of colours, polish, cosmeties from wax
C. The rearing of honey bee colonies
D. All the above
Answer» D. All the above
4227.

Which statement is improper for intraspecific hybridization.

A. Animals of two different species are interbreed.
B. The offspring show characters quite different form those obsreved in both parents.
C. In some cases fertility of offsprings gradually discreases.
D. Some times, the offsprings may posess all the desirable characters.
Answer» D. Some times, the offsprings may posess all the desirable characters.
4228.

Which genetically engineered technique is used to reduce enviornmental pollution to solve human nutrition problem.

A. Single cell protein.
B. Biofortification.
C. Bio gas production.
D. Pasturization.
Answer» B. Biofortification.
4229.

Write full form of IVRI ?

A. Internation veterinary research institute.
B. Indian veterinary research institute.
C. Imperial veterinary research institute.
D. Imperial viral research institute.
Answer» D. Imperial viral research institute.
4230.

Write full form of IARI ?

A. International agricultural research institute.
B. Indian agricultural research institute.
C. Imperial agricultural research institute.
D. Indian aronitical research institute.
Answer» C. Imperial agricultural research institute.
4231.

Who was pioneer of dairy industry in Gujarat ?

A. Fahian
B. Haber
C. Varges kurian
D. Venus (whenson)
Answer» D. Venus (whenson)
4232.

Single cell protein is produced by

A. Anaerobic respiration (fermentation)
B. Aerobic respiration
C. Biofortication
D. Paturization
Answer» B. Aerobic respiration
4233.

What is the most important food produced from?

A. from stems
B. from leaves
C. from fruits
D. from the roots
Answer» D. from the roots
4234.

From what does the seed develop?

A. from ovaries
B. from seeds
C. from anthers
D. none of these
Answer» C. from anthers
4235.

Which one of the following is a code fruit?

A. Mango
B. Cashew
C. Apple
D. Betel
Answer» D. Betel
4236.

What is rice grain?

A. a seed
B. monogamous fruit
C. fruit
D. all these
Answer» C. fruit
4237.

Which part of the pear is eaten?

A. pod
B. spore
C. Pulp Pushasana
D. all these
Answer» D. all these
4238.

Parthenogenesis is often seen in

A. in litchi
B. in the grapes
C. in all kinds of fruits
D. in common
Answer» C. in all kinds of fruits
4239.

Which one of the following is cultivated by transplanting a plant?

A. Soybean
B. sorghum
C. onion
D. maize
Answer» D. maize
4240.

Does a true fruit grow?

A. from Pushpasana
B. from parties
C. from ovary
D. none of these
Answer» D. none of these
4241.

What is the edible part of coconut?

A. Embryo
B. whole seed
C. seed coat
D. Fruit wall
Answer» B. whole seed
4242.

Which plant has seed but no fruit?

A. almond
B. Sycus
C. Peanut
D. reed
Answer» C. Peanut
4243.

Stem cutting is usually used for the propagation of

A. Did
B. Cotton
C. Sugarcane
D. lychee
Answer» D. lychee
4244.

Pollination in fragrant flowers takes place by?

A. insect
B. Bird
C. water
D. Wind
Answer» B. Bird
4245.

The fruit of which plant is found under the ground?

A. carrot
B. potato
C. Peanut
D. all these
Answer» D. all these
4246.

Who produces the largest flower in the world?

A. by loranthus
B. by rafflesia
C. by Drosera
D. none of these
Answer» C. by Drosera
4247.

Which is the largest flower in the world?

A. Reflexia
B. cactus
C. Lotus
D. none of these
Answer» B. cactus
4248.

Which is called a living organism?

A. ginkgo
B. sykes
C. Pinus
D. none of these
Answer» B. sykes
4249.

From whom is the drug Ephedrine, which is used in the diseases of asthma and cough, obtained?

A. Pinus
B. Juniperus
C. Sycus
D. ephedra
Answer» E.
4250.

Which is the most important part of the plant from the point of view of life cycle?

A. stem
B. root
C. flower
D. leaf
Answer» D. leaf