MCQOPTIONS
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MCQOPTIONS
This section includes 1275 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
Conclusion of Mendels work latter became a_____________? |
| A. | Scientific hypothesis |
| B. | Theory |
| C. | Scientific law |
| D. | Productive theory |
| Answer» D. Productive theory | |
| 302. |
Which disease can be controlled by vaccination? |
| A. | Measles |
| B. | Cancer |
| C. | Diabetes |
| D. | Heart attack |
| Answer» B. Cancer | |
| 303. |
Smallest disease causing agents in plants are ? |
| A. | virion |
| B. | mycoplasma |
| C. | viroids |
| D. | prions |
| Answer» D. prions | |
| 304. |
Biological organization is_____________? |
| A. | simple |
| B. | advance |
| C. | complex |
| D. | highly complex |
| Answer» E. | |
| 305. |
The major cell infected by the HIV is lymphocyte ? |
| A. | helper-T |
| B. | B |
| C. | both T and B |
| D. | none of these |
| Answer» B. B | |
| 306. |
Nitrogen is present in___________? |
| A. | carbohydrates |
| B. | proteins |
| C. | lipids |
| D. | carbonates |
| Answer» C. lipids | |
| 307. |
Fungi resemble plants because they lack___________? |
| A. | Cell wall |
| B. | Cytoplasm |
| C. | Centriole |
| D. | Nucleus |
| Answer» D. Nucleus | |
| 308. |
Which treatment is instituted in a cancerous patient? |
| A. | Antibiotic therapy |
| B. | Radiotherapy |
| C. | Gene therapy |
| D. | None of these |
| Answer» C. Gene therapy | |
| 309. |
Which is a parasitic plant? |
| A. | cuscuta |
| B. | rose |
| C. | ferns |
| D. | mosses |
| Answer» B. rose | |
| 310. |
Operculum is present in_____________? |
| A. | bony fish |
| B. | sea fish |
| C. | cartilaginous fish |
| D. | none of these |
| Answer» B. sea fish | |
| 311. |
Which statement is incorrect for cloning? |
| A. | The nucleus of a fertilized egg is replaced by the nucleus from the cell of a fully developed individual |
| B. | Division of a single egg into one or more separate embryos. |
| C. | The individual is the mirror image of the parent organism |
| D. | It involve methods of sexual reproduction |
| Answer» E. | |
| 312. |
The arrangement of ________ speaks of the division of labour within cell? |
| A. | Molecule |
| B. | Subatomic particles |
| C. | Atoms |
| D. | Organelles |
| Answer» E. | |
| 313. |
In which animal respiratory surface are found in more than one organ? |
| A. | birds |
| B. | human |
| C. | fish |
| D. | frog |
| Answer» E. | |
| 314. |
Communities are ________ collection of organisms? |
| A. | Static |
| B. | Dynamic |
| C. | May be static or dynamic |
| D. | None of these |
| Answer» C. May be static or dynamic | |
| 315. |
Biometry is the application of_______ in biology. |
| A. | Algebra |
| B. | Statistics |
| C. | Matrix |
| D. | Geometry |
| Answer» C. Matrix | |
| 316. |
The term biology was introduced in__________ in 1800? |
| A. | Germany |
| B. | Turkey |
| C. | Italy |
| D. | Japan |
| Answer» B. Turkey | |
| 317. |
The heart is enclosed in a membrane called________? |
| A. | pleura |
| B. | pericardium |
| C. | peritoneum |
| D. | epithelium |
| Answer» C. peritoneum | |
| 318. |
Study of insects is called_________? |
| A. | Immunology |
| B. | Parasitology |
| C. | Entomology |
| D. | Paleontology |
| Answer» D. Paleontology | |
| 319. |
Removal or degradation of environmental pollutants or toxic materials by living organisms is called__________? |
| A. | Integrated disease management |
| B. | Hydroponic culture technique |
| C. | Pasteurization |
| D. | Bioremediation |
| Answer» E. | |
| 320. |
Euglena belongs to the kingdom___________? |
| A. | Fungi |
| B. | Monera |
| C. | Protista |
| D. | Non of them |
| Answer» D. Non of them | |
| 321. |
Viruses are considered living organisms because__________? |
| A. | They can be crystallized |
| B. | They occur in plants and animals |
| C. | They are microscopic |
| D. | They contain DNA and can be reproduced |
| Answer» E. | |
| 322. |
Who discovered the living cell first time? |
| A. | Robert brown |
| B. | Robert hooke |
| C. | Rudolf virchow |
| D. | Antoni van leeuwenhoek |
| Answer» C. Rudolf virchow | |
| 323. |
Which of the following is not a viral disease? |
| A. | Cowpox |
| B. | Mumps |
| C. | Tetanus |
| D. | Small pox |
| Answer» D. Small pox | |
| 324. |
Capillaries are the example of_________? |
| A. | Organ System |
| B. | Cell |
| C. | Organ |
| D. | Tissue |
| Answer» B. Cell | |
| 325. |
The number of species of organisms currently known to science is? |
| A. | 3500000 |
| B. | 35000 |
| C. | 2500000 |
| D. | 25000000 |
| Answer» D. 25000000 | |
| 326. |
From right ventricle blood is pushed into? |
| A. | pulmonary trunk |
| B. | brain |
| C. | aorta |
| D. | body |
| Answer» B. brain | |
| 327. |
What is the branch of biology in which structure and function of tissues are studied___________? |
| A. | Cell Biology |
| B. | Taxonomy |
| C. | Histology |
| D. | Morphology |
| Answer» D. Morphology | |
| 328. |
True roots absent in_____________? |
| A. | ferns |
| B. | bryophytes |
| C. | gymnosperms |
| D. | angiosperms |
| Answer» C. gymnosperms | |
| 329. |
Which of the following statement is incorrect about antibiotics? |
| A. | They are used against microorganisms |
| B. | They are always effective against bacteria |
| C. | They are used in diseases like tuberculosis and pneumonia |
| D. | They are derived from bacteria only |
| Answer» E. | |
| 330. |
In human body 99% of total mass is formed of_____________? |
| A. | 16 Bio-elements |
| B. | 12 Bio-elements |
| C. | 10 Bio-elements |
| D. | 6 Bio-elements |
| Answer» E. | |
| 331. |
The mechanism for ATP synthesis is_____________? |
| A. | Chemosynthesis |
| B. | Photosynthesis |
| C. | Phosphorylation |
| D. | Chemiosmosis |
| Answer» E. | |
| 332. |
Pigment present in red algae is_____________? |
| A. | fucoxanthin |
| B. | phycocyanin |
| C. | phycoerythrin |
| D. | bilirubin |
| Answer» D. bilirubin | |
| 333. |
Enzyme present in the saliva is_____________? |
| A. | lipase |
| B. | trypsin |
| C. | ptyalin |
| D. | invertase |
| Answer» D. invertase | |
| 334. |
Vaccine was first developed by_______________? |
| A. | Louis Pasture |
| B. | Edward Jenner |
| C. | Jaber Ibn Hayan |
| D. | Aristotle |
| Answer» C. Jaber Ibn Hayan | |
| 335. |
Nutrition in fungi is___________? |
| A. | Photosynthetic |
| B. | Chemosynthetic |
| C. | Completely parasitic |
| D. | Absorptive heterotrophs |
| Answer» E. | |
| 336. |
Which disease has been totally eradicated from the world because of effective vaccination? |
| A. | Measles |
| B. | Polio |
| C. | Small pox |
| D. | Hepatitis |
| Answer» D. Hepatitis | |
| 337. |
Most cell membranes are composed principally of ? |
| A. | DNA ad protein |
| B. | Protein and Lipids |
| C. | Protein and Chitin |
| D. | Protein and RNA |
| Answer» C. Protein and Chitin | |
| 338. |
Messenger RNA is formed in_________? |
| A. | nucleus |
| B. | chloroplast |
| C. | mitochondria |
| D. | none of these |
| Answer» B. chloroplast | |
| 339. |
Co-enzyme is often formed from ? |
| A. | lipid |
| B. | protein |
| C. | inorganic ion |
| D. | vitamin |
| Answer» E. | |
| 340. |
Production of genetically identical copies of organisms/cells by asexula reproduction is called ? |
| A. | Mitosis |
| B. | Replication |
| C. | Cloning |
| D. | Biological control |
| Answer» D. Biological control | |
| 341. |
Number of chromosomes in E.coli ? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 342. |
Astronauts may use which technique to grow fruits and vegetables ? |
| A. | Tissue culture techniques |
| B. | Cloning |
| C. | Pasterisation |
| D. | Hydroponic culture technique |
| Answer» E. | |
| 343. |
Biological sciences have a set methodology and it is based on ? |
| A. | Experimental inquiry |
| B. | Esthetic preference |
| C. | Philosophical ideas |
| D. | Imaginations |
| Answer» B. Esthetic preference | |
| 344. |
Which statement is incorrect for pasteurization? |
| A. | It is used to preserve yogurt and milk |
| B. | It was developed by Louis Pasteur. |
| C. | It involves heating the substance at high temperature for just few sec. |
| D. | It can be used to preserve vegetables and meat. |
| Answer» E. | |
| 345. |
Which of the following pathogen type cause disease that can be treated with antibiotics ? |
| A. | bacteria |
| B. | fungi |
| C. | virus |
| D. | none of these |
| Answer» B. fungi | |
| 346. |
Which is an organic compound found in most cells ? |
| A. | Water |
| B. | Glucose |
| C. | Oxygen |
| D. | Sodium chloride |
| Answer» C. Oxygen | |
| 347. |
A series of hypothesis supported by the results of many tests is called ? |
| A. | Scientific law |
| B. | Theory |
| C. | Data |
| D. | Deduction |
| Answer» C. Data | |
| 348. |
Which are the four most abundant elements in living cells ? |
| A. | carbon, oxygen, nitrogen, sulfur |
| B. | carbon, oxygen, hydrogen, nitrogen |
| C. | carbon, oxygen, sulfur, phosphorus |
| D. | carbon, sulfur, hydrogen, magnesium |
| Answer» C. carbon, oxygen, sulfur, phosphorus | |
| 349. |
A group of similar cells that perform a specific function is: |
| A. | Organ |
| B. | Tissues |
| C. | Organelle |
| D. | Organ System |
| Answer» C. Organelle | |
| 350. |
A large regional community primarily determined by climate is called ? |
| A. | Population |
| B. | Community |
| C. | Biome |
| D. | Habitat |
| Answer» D. Habitat | |