Consider the following statements and select the correct answer from the codes given below: 1. Viruses are obligate parasites and cannot be cultured on a synthetic medium 2. The red snow phenomenon observed in some alpine and arctic regions is caused by a lichen growing in these areas 3. The red rust of tea is caused by a green alga 4. A solution of chlorophyll pigments looks red in reflected light due to the phenomenon of diffraction. Which of the above statement/s is/are true? (a) 1, 2 and 4 (b) 2 and 4 (c) 2 and 3 (d) 1 and 3

Consider the following statements and select the correct answer from the codes given below: 1. Viruses are obligate parasites and cannot be cultured on a synthetic medium 2. The red snow phenomenon observed in some alpine and arctic regions is caused by a lichen growing in these areas 3. The red rust of tea is caused by a green alga 4. A solution of chlorophyll pigments looks red in reflected light due to the phenomenon of diffraction. Which of the above statement/s is/are true? (a) 1, 2 and 4 (b) 2 and 4 (c) 2 and 3 (d) 1 and 3
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Answer :

Ans:(d)
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Related questions

Which one of the following statements about viruses is correct? (a) Viruses possess their own metabolic system. (b) All viruses contain both RNA and DNA. (c) Viruses are obligate parasites. (d) Nucleic acid of viruses is known as capsid.

Description : Which one of the following statements about viruses is correct? (a) Viruses possess their own metabolic system. (b) All viruses contain both RNA and DNA. (c) Viruses are obligate parasites. (d) Nucleic acid of viruses is known as capsid.

Last Answer : (c) Viruses are obligate parasites.

Which of the following statements is incorrect? (a) Prions consist of abnormally folded proteins. (b) Viroids lack a protein coat. (c) Viruses are obligate parasites. (d) Infective constituent in viruses is the protein coat.

Description : Which of the following statements is incorrect? (a) Prions consist of abnormally folded proteins. (b) Viroids lack a protein coat. (c) Viruses are obligate parasites. (d) Infective constituent in viruses is the protein coat.

Last Answer : (d) Infective constituent in viruses is the protein coat.

Why are viruses called obligate intracellular parasites? -Biology

Description : Why are viruses called obligate intracellular parasites? -Biology

Last Answer : answer:

Which of the following theory is supported by the genomic sequence of the obligate intracellularparasite Rickettsia prowazekii ? A- Parasitic bacteria have very large genomes B- Parasites have a definite genomic sequence similar to viruses C- Mitochondria have evolved from endosymbiotic bacteria D- All bacteria evolved from viruses

Description : Which of the following theory is supported by the genomic sequence of the obligate intracellularparasite Rickettsia prowazekii ? A- Parasitic bacteria have very large genomes B- Parasites have a ... viruses C- Mitochondria have evolved from endosymbiotic bacteria D- All bacteria evolved from viruses

Last Answer : Mitochondria have evolved from endosymbiotic bacteria

Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms. (i) Methanogens are archaebacteria which produce methane in marshy areas. (ii) Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen. (iii)Chemosynthetic autotrophic bacteria synthesize cellulose from glucose. (iv) Mycoplasma lack a cell wall and can survive without oxygenThe correct statements are (a) (ii) and (iii) (b) (i),(ii) and (iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv)..

Description : Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms. (i) Methanogens are archaebacteria which produce methane in marshy areas. (ii) Nostoc is a filamentous blue-green alga which fixes ... iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv).

Last Answer : (d) (i), (ii) and (iv)

One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of (a) violet and green light (b) indigo and green light (c) orange and yellow light (d) blue and red light.

Description : One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of (a) violet and green light (b) indigo and green light (c) orange and yellow light (d) blue and red light.

Last Answer : (d) blue and red light.

Consider the following statements and select the correct answer from the code given below: i. Rajasthan receives the highest solar radiation in the country. ii. India has the fifth largest installed wind power in the world. iii. The maximum amount of wind power is contributed by Tamil Nadu. iv. The primary source of uranium in India is Jaduguda. Codes: (A) i and ii (B) i, ii and iii (C) ii and iii (D) i and iv

Description : Consider the following statements and select the correct answer from the code given below: i. Rajasthan receives the highest solar radiation in the country. ii. India has the fifth largest installed wind power in the world. iii. The ... (A) i and ii (B) i, ii and iii (C) ii and iii (D) i and iv

Last Answer : Answer: D

Which of the following plant disease/s is/are caused by fungi? 1. Brown rot of potatoes 2. Foot rot of paddy 3. Heart rot of beets 4. Tikka disease of peanut Select the correct answer using codes given below: (a) Only 1 (b) 1 and 3 (c) 2 and 4 (d) Only 4

Description : Which of the following plant disease/s is/are caused by fungi? 1. Brown rot of potatoes 2. Foot rot of paddy 3. Heart rot of beets 4. Tikka disease of peanut Select the correct answer using codes given below: (a) Only 1 (b) 1 and 3 (c) 2 and 4 (d) Only 4

Last Answer : Ans:(c)

Consider the following two statements on power sharing and select the answer using the codes given below: -SST 10th

Description : Consider the following two statements on power sharing and select the answer using the codes given below: -SST 10th

Last Answer : b - Above given both the points are true as or any democratic country it is necessary to share its powers between various groups which maintains its stability and this sharing also reduces the possibilities of conflicts between various social groups. Hence, option (b) is correct

Which of the following statement(s) is/are correct about the powers of the Governor of a State ? (a) He has the power to dissolve the Legislative Assembly. (b) He has the power to appoint judges of the State High Court. (c) He has the power to grant pardon in case of death sentence. (d) He has diplomatic powers. Select the correct answer from the codes given below : Codes : (A) (a) only (B) (a) and (b) (C) (a), (b) and (d) (D) (a), (b) and (c)

Description : Which of the following statement(s) is/are correct about the powers of the Governor of a State ? (a) He has the power to dissolve the Legislative Assembly. (b) He has the power to appoint judges of the State High Court. (c) He has ... a) and (b) (C) (a), (b) and (d) (D) (a), (b) and (c)

Last Answer : Answer: A

Which of the following statement(s) is/are correct about a Judge of the Supreme Court of India? 1. A Judge of the Supreme Court is appointed by the President of India. 2. He holds office during the pleasure of the President. 3. He can be suspended, pending an inquiry. 4. He can be removed for proven misbehavior or incapacity. Select the correct answer from the codes given below: Codes: (A) 1, 2 and 3 (B) 1, 3 and 4 (C) 1 and 3 (D) 1 and 4

Description : Which of the following statement(s) is/are correct about a Judge of the Supreme Court of India? 1. A Judge of the Supreme Court is appointed by the President of India. 2. He holds office during the pleasure of the President. 3. He ... A) 1, 2 and 3 (B) 1, 3 and 4 (C) 1 and 3 (D) 1 and 4

Last Answer : (D) 1 and 4

Which of the following genetic disorders in man are caused by a dominant gene? 1. Edwards Syndrome 2. Huntington's disease 3. Marfan Syndrome 4. Thalassemia Select the correct answer using codes given below: (a) 1 and 3 (b) 1 and 4 (c) 2 and 3 (d) 2 and 4

Description : Which of the following genetic disorders in man are caused by a dominant gene? 1. Edwards Syndrome 2. Huntington's disease 3. Marfan Syndrome 4. Thalassemia Select the correct answer using codes given below: (a) 1 and 3 (b) 1 and 4 (c) 2 and 3 (d) 2 and 4

Last Answer : Ans:(c)

Following are the statements regarding the Usar soil - 1. It is reclaimed by adding lime. 2. This soil has pH more than seven. 3. Paddy crop can be grown in this soil. Select the correct answer from the codes given below - a) 1 and 2 are correct b) 2 and 3 are correct c) Only 3 is correct d) Only 1 is correct

Description : Following are the statements regarding the Usar soil - 1. It is reclaimed by adding lime. 2. This soil has pH more than seven. 3. Paddy crop can be grown in this soil. Select the correct answer from the codes ... and 2 are correct b) 2 and 3 are correct c) Only 3 is correct d) Only 1 is correct

Last Answer : b) 2 and 3 are correct

Which of the following statements are correct about deemed universities? (a) The Governor of the State is the chancellor of deemed universities. (b) They can design their own syllabus and course work. (c) They can frame their own guidelines regarding admission and fees. (d) They can grant degrees. Select the correct Answer from the codes given below (A) (A), (B) and (C) (B) (B), (C) and (D) (C) (A), (C) and (D) (D) (A), (B), (C) and (D)

Description : Which of the following statements are correct about deemed universities? (a) The Governor of the State is the chancellor of deemed universities. (b) They can design their own syllabus and course work. (c) They can frame their own guidelines ... (C) (A), (C) and (D) (D) (A), (B), (C) and (D)

Last Answer : Answer: B

Which of the following statements are correct about distance education in India ? (a) It supplements formal education. (b) It reduces the cost of education.+ (c) It replaces the formal education. (d) It enhances access to education. Select the correct answer from the codes given below : Codes : (A) (a), (b), (c) and (d) (B) (a), (c) and (d) (C) (a), (b) and (d) (D) (b), (c) and (d)

Description : Which of the following statements are correct about distance education in India ? (a) It supplements formal education. (b) It reduces the cost of education.+ (c) It replaces the formal education. (d) It enhances access to education. ... ) and (d) (C) (a), (b) and (d) (D) (b), (c) and (d)

Last Answer : Answer: C

Which of the following statements are correct in respect of Niti Aayog? (a) It is a constitutional body. (b) It is a statutory body. (c) It is neither a constitutional body nor a statutory body. (d) It is a think-tank. Select the correct answer from the codes given below: (A) (a) and (d) (B) (b) and (d) (C) (c) and (d) (D) (b), (c) and (d)

Description : Which of the following statements are correct in respect of Niti Aayog? (a) It is a constitutional body. (b) It is a statutory body. (c) It is neither a constitutional body nor a statutory body. (d) It is a think-tank. Select the ... (d) (B) (b) and (d) (C) (c) and (d) (D) (b), (c) and (d)

Last Answer : Answer: C 

Which of the following statements about the Indian political system is/are correct? (a) The president is both Head of the State and Head of the Government. (b) Parliament is Supreme. (c) The Supreme Court is the guardian of the Constitution. (d) The Directive Principles of State Policy are justiciable. Select the correct answer from the codes given below: (A) (a), (b), (c) and (d) (B) (b), (c) and (d) (C) (b) and (c) (D) (c) only

Description : Which of the following statements about the Indian political system is/are correct? (a) The president is both Head of the State and Head of the Government. (b) Parliament is Supreme. (c) The Supreme Court is the guardian of the ... (d) (B) (b), (c) and (d) (C) (b) and (c) (D) (c) only

Last Answer : Answer: C

Which of the following statements about teaching aids are correct? (a) They help in retaining concepts for longer duration. (b) They help students learn better. (c) They make teaching learning process interesting. (d) They enhance rote learning. Select the correct answer from the codes given below: (A) (a), (b) and (d) (B) (a), (b), (c) and (d) (C) (a), (b) and (c) (D) (b), (c) and (d)

Description : Which of the following statements about teaching aids are correct? (a) They help in retaining concepts for longer duration. (b) They help students learn better. (c) They make teaching learning process interesting. (d) They enhance rote learning. ... (d) (C) (a), (b) and (c) (D) (b), (c) and (d)

Last Answer : Answer: C

Which of the following statements are correct ? 1. There are seven Union Territories in India. 2. Two Union Territories have Legislative Assemblies 3. One Union Territory has a High Court. 4. One Union Territory is the capital of two States. Select the correct answer from the codes given below : (A) 1 and 3 only (B) 2 and 4 only (C) 2, 3 and 4 only (D) 1, 2, 3 and 4

Description : Which of the following statements are correct ? 1. There are seven Union Territories in India. 2. Two Union Territories have Legislative Assemblies 3. One Union Territory has a High Court. 4. One Union Territory is the capital of two ... (B) 2 and 4 only (C) 2, 3 and 4 only (D) 1, 2, 3 and 4

Last Answer : (D) 1, 2, 3 and 4

Which of the following statements are correct about the National Assessment and Accreditation Council ? 1. It is an autonomous institution. 2. It is tasked with the responsibility of assessing and accrediting institutions of higher education. 3. It is located in Delhi. 4. It has regional offices. Select the correct answer from the codes given below : Codes : (A) 1 and 3 (B) 1 and 2 (C) 1, 2 and 4 (D) 2, 3 and 4

Description : Which of the following statements are correct about the National Assessment and Accreditation Council ? 1. It is an autonomous institution. 2. It is tasked with the responsibility of assessing and accrediting institutions of higher education. 3 ... and 3 (B) 1 and 2 (C) 1, 2 and 4 (D) 2, 3 and 4

Last Answer : (B) 1 and 2

Which of the following statements are correct about the National Advisory Council (NAC) ? 1. The National Advisory Council is a statutory body. 2. It is headed by the Prime Minister of India. 3. It facilitates constant interaction with the leaders of civil society. 4. It provides policy and legislative inputs to the Government of India. Select the correct answer from the code given below : Codes : (A) 1, 2 and 3 (B) 2, 3 and 4 (C) 1, 3 and 4 (D) 3 and 4

Description : Which of the following statements are correct about the National Advisory Council (NAC) ? 1. The National Advisory Council is a statutory body. 2. It is headed by the Prime Minister of India. 3. It facilitates constant interaction with the ... 1, 2 and 3 (B) 2, 3 and 4 (C) 1, 3 and 4 (D) 3 and 4

Last Answer : Answer: D 

Which of the following plant pigments absorbs in red and far-red region of light? (1) Carotenoide (2) Chlorophyll (3) Phytochrome (4) elyptochrome

Description : Which of the following plant pigments absorbs in red and far-red region of light? (1) Carotenoide (2) Chlorophyll (3) Phytochrome (4) elyptochrome

Last Answer : (3) Phytochrome Explanation: Phytochrorne is a photoreceptor, a pigment that plants use to detect light. It is a protein with a bilin chromophore. It detects mainly red and far-red region of the visible spectrum and regulates germination of seeds.

Which of the following plant pigments absorbs in red and farred region of light? (1) Carotenoide (2) Chlorophyll (3) Phytochrome (4) Cryptochrome

Description : Which of the following plant pigments absorbs in red and farred region of light? (1) Carotenoide (2) Chlorophyll (3) Phytochrome (4) Cryptochrome 

Last Answer : Phytochrome

Which of the following statements regarding red soils of India is/are correct? 1. The colour of the soil is-red due to ferric oxide content. 2. Red soils are rich in lime, humous and potash. 3. They are porous and have friable structure. Select the correct answer using the code given below: [(OS2011] (a) 1 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

Description : Which of the following statements regarding red soils of India is/are correct? 1. The colour of the soil is-red due to ferric oxide content. 2. Red soils are rich in lime, humous and potash. 3. They are porous and have friable ... OS2011] (a) 1 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

Last Answer : Ans: (b)

Match List I (Vegetation zones) with List II (Mean Annual Temperature Range) and select the correct anwer using the code given below: L i st I L i st I I (Vegetati on (M ean Annual Zones) Temper atur e Range) A. Alpine I. Above 24C B. Temperate II. 17 to 24C C. Tropical III. Below 7C D. Sub-tropical IV. 7C to 17C

Description : Match List I (Vegetation zones) with List II (Mean Annual Temperature Range) and select the correct anwer using the code given below: L i st I L i st I I (Vegetati on (M ean Annual Zones) Temper atur e ... 24C B. Temperate II. 17 to 24C C. Tropical III. Below 7C D. Sub-tropical IV. 7C to 17C

Last Answer : IV. 7C to 17C

Relationship between an alga and the fungus in lichen? -Biology

Description : Relationship between an alga and the fungus in lichen? -Biology

Last Answer : answer:

Litmus is obtained from – (1) a bacterium (2) a fungus (3) an alga (4) lichen

Description : Litmus is obtained from – (1) a bacterium (2) a fungus (3) an alga (4) lichen

Last Answer : (4) lichen Explanation: Litmus is a water-soluble mixture of different dyes extracted from lichens, especially Roccellatinctoria. It is often absorbed onto filter paper to produce one of the ... litmus paper is purple. Litmus can also be prepared as an aqueous solution that functions similarly

There exists a close association between the alga and the fungus within a lichen. The fungus (a) provides protection, anchorage and absorption for the algae (b) provides food for the alga (c) fixes the atmospheric nitrogen for the alga (d) releases oxygen for the alga.

Description : There exists a close association between the alga and the fungus within a lichen. The fungus (a) provides protection, anchorage and absorption for the algae (b) provides food for the alga (c) fixes the atmospheric nitrogen for the alga (d) releases oxygen for the alga.

Last Answer : (a) provides protection, anchorage and absorption for the algae

Litmus is obtained from (1) a bacterium (2) a fungus (3) an alga (4) lichen

Description : Litmus is obtained from (1) a bacterium (2) a fungus (3) an alga (4) lichen

Last Answer : lichen

Instead of holding the office during the pleasure of the President who among the following hold (s) office during good behavior? (a) Governor of State (b) Attorney General of India (c) Judges of high court (d) Administrator of Union Territories Select the correct Answer from the codes given below: (A) (a) only (B) (c) Only (C) (a) and (c) (D) (a), (b), (c) and (d)

Description : Instead of holding the office during the pleasure of the President who among the following hold (s) office during good behavior? (a) Governor of State (b) Attorney General of India (c) Judges of high court (d) Administrator of Union ... ) (c) Only (C) (a) and (c) (D) (a), (b), (c) and (d)

Last Answer : Answer: B 

Which of the following is/are a minority institution(s) ? 1. Punjabi University, Patiala 2. Osmania University, Hyderabad 3. Kashmir University, Srinagar 4. St. Stephens College, Delhi Select the correct answer from the code given below : Codes : (A) 1 and 2 (B) 2 and 4 (C) 2 only (D) 4 only

Description : Which of the following is/are a minority institution(s) ? 1. Punjabi University, Patiala 2. Osmania University, Hyderabad 3. Kashmir University, Srinagar 4. St. Stephens College, Delhi Select the correct answer from the code given below : Codes : (A) 1 and 2 (B) 2 and 4 (C) 2 only (D) 4 only

Last Answer : Answer: D

Match List-I with List-II and select answer from the codes given below— List-I (a) White Revolution (b) Grey Revolution (c) Blue Revolution (d) Green Revolution List-II 1. Fertilizer production 2. Fish production 3. Cereal production 4. Milk production Codes :(a) (b) (c) (d) (A) 4 1 2 3 (B) 1 2 3 4 (C) 2 4 3 1 (D) 1 3 4 2

Description : Match List-I with List-II and select answer from the codes given below- List-I (a) White Revolution (b) Grey Revolution (c) Blue Revolution (d) Green Revolution List-II 1. Fertilizer production 2. Fish production 3. Cereal production 4. Milk ... (A) 4 1 2 3 (B) 1 2 3 4 (C) 2 4 3 1 (D) 1 3 4 2

Last Answer : (A) 4 1 2 3

Diffuse porous woods are characteristic of plants growing in (a) alpine region (b) cold winter regions (c) temperature climate (d) tropics.

Description : Diffuse porous woods are characteristic of plants growing in (a) alpine region (b) cold winter regions (c) temperature climate (d) tropics.

Last Answer : (d) tropics.

On a rainy day, small oil films on water show brilliant colors'. This is due to A. dispersion B. interference C. diffraction D. Polarization 49.The critical angle for a beam of light passing from water into air is 48.8 °. This means that all light rays with an angle of incidence greater than this angle will be A. absorbed B. totally reflected C. Partially reflected and partially transmitted D. Totally transmitted

Description : On a rainy day, small oil films on water show brilliant colors'. This is due to A. dispersion B. interference C. diffraction D. Polarization 49.The critical angle for a beam of light ... A. absorbed B. totally reflected C. Partially reflected and partially transmitted D. Totally transmitted

Last Answer : C. Partially reflected and partially transmitted

Which of the statements is not true? (1) K2Cr2O7 solution becomes yellow on increasing the pH beyond 7 (2) On passing H2 S through acidified K2Cr2O7 solution, a milky colour is observed (3) Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis (4) K2Cr2O7 solution in acidic medium is orange

Description : Which of the statements is not true? (1) K2Cr2O7 solution becomes yellow on increasing the pH beyond 7 (2) On passing H2 S through acidified K2Cr2O7 solution, a milky colour is observed (3) Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis (4) K2Cr2O7 solution in acidic medium is orange

Last Answer : Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis

The main objectives of student evaluation of teachers are: (a) To gather information about student weaknesses. (b) To make teachers take teaching seriously. (c) To help teachers adopt innovative methods of teaching. (d) To identify the areas of further improvement in teacher traits. Identify the correct answer from the codes given below: (A) (a) and (b) only (B) (b), (c) and (d) only (C) (a), (b) and (c) only (D) (a) only

Description : The main objectives of student evaluation of teachers are: (a) To gather information about student weaknesses. (b) To make teachers take teaching seriously. (c) To help teachers adopt innovative methods of teaching. (d) To identify the ... (c) and (d) only (C) (a), (b) and (c) only (D) (a) only

Last Answer : Answer: B 

The photosynthetic pigments used by the green sulfur bacteria and some archaeal species are a. Chlorophyll b. Bacteriochlorophyll c. Cytochrome d. Sulfate

Description : The photosynthetic pigments used by the green sulfur bacteria and some archaeal species are a. Chlorophyll b. Bacteriochlorophyll c. Cytochrome d. Sulfate

Last Answer : b. Bacteriochlorophyll

Which of the following statements are always true ? (a) A wooden table is a table (b) Now, it is raining or not raining (c) The sun rises in the East every day (d) A chicken comes out of a hen's egg Choose the correct answer from the codes given below : Codes: (A) (a) and (c) (B) (a), (c) and (d) (C) (a) and (b) (D) (b) and (c)

Description : Which of the following statements are always true ? (a) A wooden table is a table (b) Now, it is raining or not raining (c) The sun rises in the East every day (d) A chicken comes out of a hen's egg Choose the correct answer ... and (c) (B) (a), (c) and (d) (C) (a) and (b) (D) (b) and (c)

Last Answer : Answer: B

Select the two correct statements out of the four (i – iv) statements given below about lac operon. (i) Glucose or galactose may bind with the repressor and inactivate it. (ii) In the absence of lactose, the repressor binds with the operator region. (iii)The z-gene codes for permease. (iv) This was elucidated by Francois Jacob and Jacques Monod. The correct statements are (a) (ii) and (iii) (b) (i) and (iii) (c) (ii) and (iv) (d) (i) and (ii)

Description : Select the two correct statements out of the four (i - iv) statements given below about lac operon. (i) Glucose or galactose may bind with the repressor and inactivate it. (ii) In the absence of lactose, the repressor binds with the ... (iii) (b) (i) and (iii) (c) (ii) and (iv) (d) (i) and (ii)

Last Answer : (c) (ii) and (iv)

Which of the codes given below contains only the correct statements? Select the code: Statements: (a) Venn diagram represents the arguments graphically. (b) Venn diagram can enhance our understanding. (c) Venn diagram may be called valid or invalid. (d) Venn diagram is clear method of notation. Codes: (A) (a), (c) and (d) (B) (a), (b) and (c) (C) (a), (b) and (d) (D) (b), (c) and (d)

Description : Which of the codes given below contains only the correct statements? Select the code: Statements: (a) Venn diagram represents the arguments graphically. (b) Venn diagram can enhance our understanding. (c) Venn diagram may be called valid or ... and (c) (C) (a), (b) and (d) (D) (b), (c) and (d)

Last Answer : Answer: C