MCQOPTIONS
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MCQOPTIONS
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.
| 4701. |
Sequence-base change within a gene is called? |
| A. | impersonation |
| B. | Reproduction |
| C. | combination |
| D. | mutation |
| Answer» E. | |
| 4702. |
Which of the following is used for embossing on the colored surface of fingerprints? |
| A. | manganese dioxide |
| B. | golden mistake |
| C. | fluorescent powder |
| D. | charcoal |
| Answer» D. charcoal | |
| 4703. |
In the context of biological evolution, the loss of limbs in snakes is explained by? |
| A. | by inheritance of acquired traits |
| B. | use and disuse of organs |
| C. | friendly to living on the bills |
| D. | by natural selection |
| Answer» C. friendly to living on the bills | |
| 4704. |
Thalassemia is a hereditary disease that affects: |
| A. | Blood |
| B. | heart |
| C. | Lungs |
| D. | none of these |
| Answer» B. heart | |
| 4705. |
What is the source of genetic variation in organisms? |
| A. | natural selection |
| B. | effects of hormones |
| C. | sexual reproduction |
| D. | mutation |
| Answer» E. | |
| 4706. |
Which of the following is used in genetic engineering? |
| A. | ribosome |
| B. | plastid |
| C. | plasmid |
| D. | none of these |
| Answer» D. none of these | |
| 4707. |
According to Neo Darwinism, which factor is responsible for biological evolution? |
| A. | Beneficial variations |
| B. | mutation |
| C. | Mutation and Natural Selection |
| D. | hybridization |
| Answer» D. hybridization | |
| 4708. |
Which blood group is the universal donor for human blood transfusion? |
| A. | O group |
| B. | B+ group |
| C. | A+ group |
| D. | AB group |
| Answer» B. B+ group | |
| 4709. |
What is the peripatus coordinating? |
| A. | Annelida and Arthropoda |
| B. | mollusca and arthropoda |
| C. | reptiles and mammals |
| D. | flatworms and annelida |
| Answer» B. mollusca and arthropoda | |
| 4710. |
Archeopteryx was the coordinator of? |
| A. | birds and mammals |
| B. | reptiles and mammals |
| C. | amphibians and reptiles |
| D. | reptiles and birds |
| Answer» E. | |
| 4711. |
The terms hypoglycemia and hyperglycemia are related to which of the following? |
| A. | cancer |
| B. | body fat |
| C. | blood sugar |
| D. | none of these |
| Answer» D. none of these | |
| 4712. |
Which organization issues the Red List for the endangered species? |
| A. | United Nations Environment Program |
| B. | world wide fund for nature |
| C. | International Union for Conservation of Nature |
| D. | world conservation monitoring center |
| Answer» D. world conservation monitoring center | |
| 4713. |
What is the main factor of development? |
| A. | natural selection |
| B. | mutation |
| C. | acquired qualities |
| D. | sexual reproduction |
| Answer» B. mutation | |
| 4714. |
What are the plants that grow in highly salty soils called? |
| A. | mesophyta |
| B. | halophyta |
| C. | Thalophyta |
| D. | Xerophyta |
| Answer» C. Thalophyta | |
| 4715. |
In which part of the body is glycogen found? |
| A. | gut |
| B. | skin |
| C. | liver |
| D. | pancreatic |
| Answer» D. pancreatic | |
| 4716. |
Panda is also a member of the family to which it belongs? |
| A. | cat |
| B. | dog |
| C. | rabbit |
| D. | Bear |
| Answer» E. | |
| 4717. |
Sankalp Project is designed for the treatment of which disease? |
| A. | HIV |
| B. | Malaria |
| C. | TB |
| D. | cancer |
| Answer» B. Malaria | |
| 4718. |
Sericulture is called? |
| A. | apiculture |
| B. | PCculture |
| C. | sericulture |
| D. | none of these |
| Answer» D. none of these | |
| 4719. |
Which vitamin contributes to blood clotting? |
| A. | Vitamin B |
| B. | vitamin C |
| C. | Vitamin K |
| D. | Vitamin A |
| Answer» D. Vitamin A | |
| 4720. |
Which is the largest number in the food chain? |
| A. | primary consumer |
| B. | producer |
| C. | decomposer |
| D. | secondary consumer |
| Answer» D. secondary consumer | |
| 4721. |
Do you study muscles? |
| A. | in biology |
| B. | in Mastrology |
| C. | in mycology |
| D. | none of these |
| Answer» B. in Mastrology | |
| 4722. |
Which of the following bacteria forms endosymbiotic nitrogen fixing association which helps in nitrogen fixation? |
| A. | Clostridium |
| B. | Rhizobium |
| C. | salmonella |
| D. | none of these |
| Answer» C. salmonella | |
| 4723. |
What is the function of ribosomes in the cell? |
| A. | synthesis of |
| B. | synthesis of proteins |
| C. | synthesis of carbohydrates |
| D. | synthesis of |
| Answer» C. synthesis of carbohydrates | |
| 4724. |
Plasmodium fosiparum causes malaria. Where is it found? |
| A. | bacteria |
| B. | fungus |
| C. | protozoan |
| D. | Virus |
| Answer» D. Virus | |
| 4725. |
What is seed therapy used for? |
| A. | cancer |
| B. | asthma |
| C. | Tuberculosis |
| D. | AIDS |
| Answer» B. asthma | |
| 4726. |
Who is credited with first coining the term ecology? |
| A. | Of Brown |
| B. | to reiter |
| C. | to khurana |
| D. | to Aristotle |
| Answer» C. to khurana | |
| 4727. |
Which branch of science is studied by neurology? |
| A. | sew |
| B. | nipples |
| C. | eyes |
| D. | nerve fibers |
| Answer» E. | |
| 4728. |
Myxedema occurs in the human body due to the malfunction of which of the following? |
| A. | adrenal gland |
| B. | Thyroid gland |
| C. | pancreas gland |
| D. | liver |
| Answer» C. pancreas gland | |
| 4729. |
Which gland of human body is called master gland? |
| A. | pancreas |
| B. | please |
| C. | Piyush |
| D. | Avatu |
| Answer» D. Avatu | |
| 4730. |
Which chromosome determines the sex of children? |
| A. | from father |
| B. | from mother |
| C. | of both parents |
| D. | by no one |
| Answer» B. from mother | |
| 4731. |
Which hormone is injected into the udders of cows and buffaloes for milking? |
| A. | oxytocin |
| B. | insulin |
| C. | Sametotropin |
| D. | none of these |
| Answer» B. insulin | |
| 4732. |
Which of the following is a non-living component of an ecosystem? |
| A. | bacteria |
| B. | human |
| C. | water |
| D. | Clarela |
| Answer» D. Clarela | |
| 4733. |
What are the primary consumers in a chain? |
| A. | producer |
| B. | decomposer |
| C. | non-vegetarian |
| D. | Vegetarian |
| Answer» E. | |
| 4734. |
The secretion of glands without ducts is called? |
| A. | Juice |
| B. | emissions |
| C. | solution |
| D. | hormones |
| Answer» E. | |
| 4735. |
Which of the following is the smallest animal? |
| A. | Mycoplasma |
| B. | Yeast |
| C. | Virus |
| D. | bacteria |
| Answer» B. Yeast | |
| 4736. |
Which of the following glands found in the human body is ductless? |
| A. | liver |
| B. | Kidney |
| C. | endocrine gland |
| D. | sweat gland |
| Answer» D. sweat gland | |
| 4737. |
Which bacterium is found in human intestine? |
| A. | Escherichia coli |
| B. | corino bacterium |
| C. | vibrio cholerae |
| D. | none of these |
| Answer» B. corino bacterium | |
| 4738. |
What was the name of the first test tube baby? |
| A. | Faith |
| B. | Lewis |
| C. | dolly |
| D. | indira |
| Answer» C. dolly | |
| 4739. |
Antibiotics are mostly found in? |
| A. | in angiosperms |
| B. | in fungi |
| C. | in viruses |
| D. | in bacteria |
| Answer» E. | |
| 4740. |
The bacteria which are the smallest in size are called? |
| A. | vibrio |
| B. | Sperm |
| C. | Dandanu |
| D. | Spirilla |
| Answer» C. Dandanu | |
| 4741. |
The study of fruits is called? |
| A. | phenology |
| B. | pomology |
| C. | agrotology |
| D. | anthology |
| Answer» C. agrotology | |
| 4742. |
What are the plants that produce seeds but do not produce flowers called? |
| A. | bryophytes |
| B. | terifites |
| C. | angiosperms |
| D. | angiosperm |
| Answer» E. | |
| 4743. |
Who discovered bacteria first? |
| A. | Robert Koch |
| B. | Louis Pasteur |
| C. | Leuvenhawk |
| D. | robert hook |
| Answer» D. robert hook | |
| 4744. |
What is the general shape of bacteria? |
| A. | spiral |
| B. | round |
| C. | rod shaped |
| D. | comma-shaped |
| Answer» D. comma-shaped | |
| 4745. |
Who is the proponent of the Dhinama system? |
| A. | Darwin |
| B. | Theophrastus |
| C. | Linnaeus |
| D. | hippocrates |
| Answer» D. hippocrates | |
| 4746. |
What is sabudana made from? |
| A. | Pinus |
| B. | cedrus |
| C. | Juniperus |
| D. | Sycus |
| Answer» E. | |
| 4747. |
Where are the pineal glands located? |
| A. | liver |
| B. | Uterus |
| C. | kidney |
| D. | Brain |
| Answer» E. | |
| 4748. |
Microorganisms found? |
| A. | in sandy soil |
| B. | in saline water |
| C. | in swampy land |
| D. | in all these |
| Answer» E. | |
| 4749. |
Is insulin a type? |
| A. | Salt |
| B. | Vitamins |
| C. | Enzyme |
| D. | hormones |
| Answer» E. | |
| 4750. |
Which of the following glands secretes tears? |
| A. | lacrimal |
| B. | pancreas |
| C. | Avatu |
| D. | Piyush |
| Answer» B. pancreas | |