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.
| 751. |
In the lytic cycle of bacteriophage the host DNA is__________? |
| A. | Replicated |
| B. | Turn off by the protein coat |
| C. | Digested into its nucleotides |
| D. | Turned on by the removal of the protein coat |
| Answer» D. Turned on by the removal of the protein coat | |
| 752. |
Deficiency of K+ causes_____________? |
| A. | Stunted growth & strong chlorosis |
| B. | No electron transport chains |
| C. | Premature death of leaves |
| D. | Stunted growth of roots |
| Answer» D. Stunted growth of roots | |
| 753. |
Temperate phage may exist as_____________? |
| A. | Prophage |
| B. | Capsid |
| C. | Viron |
| D. | Retrovirus |
| Answer» B. Capsid | |
| 754. |
Pepsinogen is produced from__________? |
| A. | Mucous cells |
| B. | Parietal cells |
| C. | Zymogen cells |
| D. | All of these |
| Answer» D. All of these | |
| 755. |
Loss of appetite due to the fear of becoming obese is____________? |
| A. | Anorexia nervosa |
| B. | Bulimia nervosa |
| C. | Piles |
| D. | Dyspepsia |
| Answer» B. Bulimia nervosa | |
| 756. |
Masses of dilated tortuous veins in the anorectal mucosa are known as___________? |
| A. | Bulimia |
| B. | Ulcer |
| C. | Adipose tissue |
| D. | Hemorrhoids |
| Answer» E. | |
| 757. |
Carbohydrates, fats & proteins are essential for_______________? |
| A. | Metabolic processes of an organism |
| B. | Providing energy |
| C. | Formation of sturctures |
| D. | All of these |
| Answer» E. | |
| 758. |
An illness which largely affects girls usually just after the onset of puberty. |
| A. | Bulimia nervosa |
| B. | Obesity |
| C. | Anorexia nervosa |
| D. | None of these |
| Answer» D. None of these | |
| 759. |
Puccinia is a parasitic___________? |
| A. | Plant |
| B. | Fungus |
| C. | Animal |
| D. | Algae |
| Answer» C. Animal | |
| 760. |
Autotrophic organisms can exist in an exclusively ________________ environment? |
| A. | Organic |
| B. | Inorganic |
| C. | Wet |
| D. | Terrestrial |
| Answer» C. Wet | |
| 761. |
Of the following, which one has more variety of nutrition________________? |
| A. | Animals |
| B. | Bacteria |
| C. | Plants |
| D. | Fungi |
| Answer» B. Bacteria | |
| 762. |
Strong chlorosis is due to the deficiency of _____________ in plants? |
| A. | Magnesium |
| B. | Nitrogen |
| C. | Potassium |
| D. | Phosphorus |
| Answer» C. Potassium | |
| 763. |
All of the insectivorous plants are true________________? |
| A. | Heterotrophs |
| B. | Autotrophes |
| C. | Carnivores |
| D. | Saprotrophs |
| Answer» C. Carnivores | |
| 764. |
Oyster mushroom is an example of predator fungi which attack on______________? |
| A. | Pin warms |
| B. | Tape worms |
| C. | Round worms |
| D. | Platehelminthes |
| Answer» D. Platehelminthes | |
| 765. |
Parasites capable of living independently of its host at times is called as ___________ parasite? |
| A. | Obligate |
| B. | Strict |
| C. | Facultative |
| D. | Endoparasite |
| Answer» D. Endoparasite | |
| 766. |
Earthworm is an example of ______________feeder? |
| A. | Detritus |
| B. | Fluid |
| C. | Macrophageus |
| D. | Filter |
| Answer» B. Fluid | |
| 767. |
Incomplete or imperfect digestion is known as________? |
| A. | Obesity |
| B. | Dyspepsia |
| C. | Anorexia nervous |
| D. | Bulimia nervosa |
| Answer» C. Anorexia nervous | |
| 768. |
The leaf is bilobed with midrib between them. The plant is____________? |
| A. | Saraccnia |
| B. | Dionaea |
| C. | Pitcher plant |
| D. | None of these |
| Answer» C. Pitcher plant | |
| 769. |
Midgut in cockroach is a short narrow tube called____________? |
| A. | Hepatic caeca |
| B. | Gizzard |
| C. | Stomach |
| D. | Rectum |
| Answer» D. Rectum | |
| 770. |
Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is___________? |
| A. | Creatin |
| B. | Gastrin |
| C. | Secretin |
| D. | Pepsin |
| Answer» D. Pepsin | |
| 771. |
A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is__________? |
| A. | Pyrolysis |
| B. | Pyrosis |
| C. | Peristalsis |
| D. | Dyspepsia |
| Answer» C. Peristalsis | |
| 772. |
In planaria, numerous small branches which end blindly are called as__________? |
| A. | Digestive tract |
| B. | Intestinal caeca |
| C. | Hepatic caeca |
| D. | Both B & C |
| Answer» C. Hepatic caeca | |
| 773. |
Lichen is a symbiotic mutualistic association of fungi with______________? |
| A. | Autotrophs |
| B. | Roots of vascular plants |
| C. | Green algae and cyanobacterium |
| D. | Leguminous plants |
| Answer» D. Leguminous plants | |
| 774. |
All such fungi in which sexual phase has not been observed are present in___________? |
| A. | Zygomycota |
| B. | Ascomycota |
| C. | Basidiomycota |
| D. | Deuteromycota |
| Answer» E. | |
| 775. |
The partly digested food is stored in________in cockroach? |
| A. | Gizzard |
| B. | Crop |
| C. | Hepatic caeca |
| D. | Rectum |
| Answer» C. Hepatic caeca | |
| 776. |
How many species of fungi are known till now? |
| A. | 10000 |
| B. | 100000 |
| C. | 10000000 |
| D. | 1000 |
| Answer» C. 10000000 | |
| 777. |
Death cap/death angel (Amanita) and Jack O Latern mushroom are examples of__________? |
| A. | Edible mushrooms |
| B. | Poisonous mushrooms |
| C. | Both of these |
| D. | None of these |
| Answer» C. Both of these | |
| 778. |
Hunger contractions are _____ contractions? |
| A. | Antiperistalsis |
| B. | Peristalsis |
| C. | Voluntary |
| D. | None of these |
| Answer» C. Voluntary | |
| 779. |
Which one of the following is the largest group of fungi? |
| A. | Zygomycota |
| B. | Ascomycota |
| C. | Basidiomycota |
| D. | Deuteromycota |
| Answer» C. Basidiomycota | |
| 780. |
Fungi which get their food directly from dead organic matter are called______________? |
| A. | Parasitic fungi |
| B. | Predators |
| C. | Mutualists |
| D. | Decomposers |
| Answer» E. | |
| 781. |
Which of the following group represent pathological fungi______________? |
| A. | Mushrooms morels and truffles |
| B. | Rusts smuts and molds |
| C. | Penicillium |
| D. | All of these |
| Answer» C. Penicillium | |
| 782. |
How many species of mushrooms are edible? |
| A. | 100 |
| B. | 200 |
| C. | 3000 |
| D. | 4000 |
| Answer» C. 3000 | |
| 783. |
By which of the following mechanism unicellular yeast reproduce? |
| A. | Sporing |
| B. | Conidiation |
| C. | Budding |
| D. | Fragmentation |
| Answer» D. Fragmentation | |
| 784. |
Root like structure in saprotrophic fungi are called_______________? |
| A. | Rhizodis |
| B. | Haustoria |
| C. | Hyphae |
| D. | Constricting rings |
| Answer» B. Haustoria | |
| 785. |
Penicillium reproduce via___________? |
| A. | Spores |
| B. | Conidia |
| C. | Budding |
| D. | Fragmentation |
| Answer» C. Budding | |
| 786. |
How many species of ascomycota occur in lichen symbiotic association? |
| A. | 30% |
| B. | 40% |
| C. | 50% |
| D. | 60% |
| Answer» D. 60% | |
| 787. |
Constricting ring around nematode is formed by_____________? |
| A. | Arthrobotrys |
| B. | Pleurotus ostreatus |
| C. | Mildews |
| D. | All of these |
| Answer» B. Pleurotus ostreatus | |
| 788. |
In which of the following example of fungi dikaryotic hyphae exist for long period? |
| A. | Deuteromycota |
| B. | Basidiomycota |
| C. | Zygomycota |
| D. | All of these |
| Answer» C. Zygomycota | |
| 789. |
Both radial and bilateral symmetry is found in the phylum____________? |
| A. | Protozoa |
| B. | Porifera |
| C. | Echinodermata |
| D. | None of these |
| Answer» D. None of these | |
| 790. |
Coenocytic hyphae are also known as______________? |
| A. | Septate |
| B. | Perforated hyphae |
| C. | Aseptate |
| D. | Uninucleate hyphae |
| Answer» D. Uninucleate hyphae | |
| 791. |
The Kingdom of recyclers is known as kingdom_____________? |
| A. | Algae |
| B. | Bacteria |
| C. | Fungi |
| D. | Embryophata |
| Answer» D. Embryophata | |
| 792. |
Tetany is caused by__________? |
| A. | Hypocalcemia |
| B. | Hypercalcemia |
| C. | Clostridum tetani |
| D. | Low O2 level |
| Answer» B. Hypercalcemia | |
| 793. |
Unicellular fungi which is non-hyphal is___________? |
| A. | Mushroom |
| B. | Yeast |
| C. | Penicillium |
| D. | Mold |
| Answer» C. Penicillium | |
| 794. |
Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called___________? |
| A. | Mildew |
| B. | Constricting ring |
| C. | Haustoria |
| D. | All of these |
| Answer» D. All of these | |
| 795. |
Which of the following is responsible for Irish potato famine? |
| A. | Dinoflagellates |
| B. | Kleps |
| C. | Physarum polycephalum |
| D. | Phytophthora infestans |
| Answer» E. | |
| 796. |
Spores in sporangia are produced by process? |
| A. | Sexual |
| B. | Asexual |
| C. | Both of these |
| D. | None of these |
| Answer» C. Both of these | |
| 797. |
Of the following which one is not the characteristic of dinoflagellates? |
| A. | Most of them are unicellular |
| B. | They have blooms |
| C. | Their cells are often covered with shells of interlocking cellulose plates impregnated with calcium |
| D. | None of these |
| Answer» D. None of these | |
| 798. |
Who first separated bacteria from other protists as a group_____________? |
| A. | John Hogg |
| B. | Ernst Haeckel |
| C. | Margulis and Schwartz |
| D. | Herbert Copeland |
| Answer» E. | |
| 799. |
Which of the following statement about Kingdom Protista is incorrect_______________? |
| A. | Their members have characteristics which separate them from other kingdoms |
| B. | They only include unicellular aquatic eukaryotic organisms |
| C. | They do not develop from Blastula or embryo |
| D. | They contain ancestors for fungi plants & animals |
| Answer» C. They do not develop from Blastula or embryo | |
| 800. |
All phostosynthetic euglenoids lose their chlorophyll when grown in dark and obtain their nutrients heterotrophically this statement is___________? |
| A. | True |
| B. | False |
| C. | May be true may be false |
| D. | Unpredictable |
| Answer» C. May be true may be false | |