Nucleic acid show strong absorption at one of the wavelength: (A) 280 nm (B) 220 nm (C) 360 nm (D) 260 nm

Nucleic acid show strong absorption at one of the wavelength: (A) 280 nm (B) 220 nm (C) 360 nm (D) 260 nm
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Nucleic acids can be detected by means of their absorption maxima near 260 nm. Their absorption in this range is due to (A) Proteins (B) Purines and pyrimidines (C) Ribose (D) Deoxyribose

Description : Nucleic acids can be detected by means of their absorption maxima near 260 nm. Their absorption in this range is due to (A) Proteins (B) Purines and pyrimidines (C) Ribose (D) Deoxyribose

Last Answer : Answer : B

Nucleotides and nucleic acids concentration are often also expressed in terms of (A) ng (B) mg (C) meq (D) OD at 260 nm

Description : Nucleotides and nucleic acids concentration are often also expressed in terms of (A) ng (B) mg (C) meq (D) OD at 260 nm

Last Answer : Answer : D

A bag contains 25p coins, 50p coins and 1 rupee coins whose values are in the ratio of 8:4:2.If the total values of coins is X and the total amount in rupees is Y,then which of the following is true A) X = 840; Y = 360 B) X = 966; Y = 345 C) X = 840; Y = 280 D) X = 740; Y = 260 E) None of these

Description : A bag contains 25p coins, 50p coins and 1 rupee coins whose values are in the ratio of 8:4:2.If the total values of coins is X and the total amount in rupees is Y,then which of the following is true A) X = 840; Y = 360 B) X = 966; Y = 345 C) X = 840; Y = 280 D) X = 740; Y = 260 E) None of these

Last Answer : Answer: A Value is given in the ratio 8:4:2. By option, (8x*0.25) + (4x*0.5) + (2x*1) = 840. So X=840 Y=360

(3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorbs all wavelengths < 200 nm) through the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Description : (3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ... the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Last Answer : The advantage of detergents over soaps is – (1) Detergents are soluble in water (2) Detergents could not give much lather (3) Detergents give lather even with hard water (4) Soaps give lather with only soft water

(3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorbs all wavelengths < 200 nm) through the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Description : (3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ... the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Last Answer : The advantage of detergents over soaps is – (1) Detergents are soluble in water (2) Detergents could not give much lather (3) Detergents give lather even with hard water (4) Soaps give lather with only soft water

Which component of the protein absorb UV light at 280 nm?

Description : Which component of the protein absorb UV light at 280 nm?

Last Answer : Indole ring of tryptophan.

What is the total strength of the Rajya Sabha? (1) 250 (2) 260 (3) 270 (4) 280

Description : What is the total strength of the Rajya Sabha? (1) 250 (2) 260 (3) 270 (4) 280

Last Answer : (1) 250 Explanation: The Rajya Sabha or Council of States is the upper house of the Parliament of India. Membership of Rajya Sabha is limited by the Constitution to a maximum of 250 members, and ... . Members sit for staggered six-year terms, with one third of the members retiring every two years.

Which of the following is generally used for induced mutagenesis in crop plants? (a) X-rays (b) UV (260 nm) (c) Gamma rays (from cobalt-60) (d) Alpha particles

Description : Which of the following is generally used for induced mutagenesis in crop plants? (a) X-rays (b) UV (260 nm) (c) Gamma rays (from cobalt-60) (d) Alpha particles

Last Answer : (c) Gamma rays

different types of crops are grown in India. a) 230 b) 260 c) 250 d) 220

Description : different types of crops are grown in India. a) 230 b) 260 c) 250 d) 220

Last Answer : 250

A candidate scoring 50% in an examination fails by 60 marks , while another candidate scores 75 % mark, gets 40 marks more than the minimum pass marks . Find the minimum pass mark. a) 125 b) 220 c) 140 d) 260 e) 298

Description :  A candidate scoring 50% in an examination fails by 60 marks , while another candidate scores 75 % mark, gets 40 marks more than the minimum pass marks . Find the minimum pass mark. a) 125 b) 220 c) 140 d) 260 e) 298

Last Answer : Answer: B  Let x be the maximum marks,  Then (50% of x)+60 = (75% of x)-40  x/2 +60 = 3x/4 -20  60+20 = 3x/4 – x/ 2 X=320  Hence maximum marks = 320  Minimum pass marks = 320/2 + 60 = 220

The minimum quantity of cement to be used in controlled concrete is (a) 120kg/cm2 (b) 160 kg/cm2 (c) 220 kg/cm2 (d) 280 kg/cm2

Description : The minimum quantity of cement to be used in controlled concrete is (a) 120kg/cm2 (b) 160 kg/cm2 (c) 220 kg/cm2 (d) 280 kg/cm2

Last Answer : (c) 220 kg/cm2

The missing number in the series : 0, 6, 24, 60, 120, ?, 336, is (A) 240 (B) 220 (C) 280 (D) 210

Description : The missing number in the series : 0, 6, 24, 60, 120, ?, 336, is (A) 240 (B) 220 (C) 280 (D) 210

Last Answer : Answer: D

The total number of bones in the human body is : (1) 206 (2) 260 (3) 306 (4) 360

Description : The total number of bones in the human body is : (1) 206 (2) 260 (3) 306 (4) 360

Last Answer : (1) 206 Explanation: At birth there are over 270 bones in an infant human's body, but many of these fuse together as the child grows, leaving a total of 206 separate bones in an adult. The largest bone in the human body is the femur and the smallest bones are auditory ossicles.

The maximum permissible deflection of a timber beam supporting a roof, is (A) L/100 (B) L/150 (C) L/260 (D) L/360

Description : The maximum permissible deflection of a timber beam supporting a roof, is (A) L/100 (B) L/150 (C) L/260 (D) L/360

Last Answer : Answer: Option D

The total number of bones in the human body is : (1) 206 (2) 260 (3) 306 (4) 360

Description : The total number of bones in the human body is : (1) 206 (2) 260 (3) 306 (4) 360

Last Answer : 206

The most of the ultraviolet absorption of proteins above 240 nm is due to their content of (A) Tryptophan (B) Aspartate (C) Glutamate (D) Alanine

Description : The most of the ultraviolet absorption of proteins above 240 nm is due to their content of (A) Tryptophan (B) Aspartate (C) Glutamate (D) Alanine

Last Answer : Answer : A

A 15-year-old girl was seen by her family physician because of increasing lethargy. She had a recent history of the "flu". Biochemistry tests show that she has renal impairement. serum sodium 140 mmol/L (137 - 144) serum potassium 4.2 mmol/L (3.5 - 4.9) serum urea 28 mol/L (2.5 - 7.5) serum creatinine 280 µmol/L (60 - 110) Her condition does not improve after several weeks on corticosteroid therapy, so a renal biopsy is performed. The biopsy demonstrates the presence of segmental sclerosis of 3 of 10 glomeruli identified in the biopsy specimen. Immunofluorescence studies and electron microscopy do not reveal evidence for immune deposits. What is the most appropriate advice to give regarding her condition? 1) She has an underlying malignancy 2) She may require a renal transplant in 10 years

Description : A 15-year-old girl was seen by her family physician because of increasing lethargy. She had a recent history of the "flu". Biochemistry tests show that she has renal impairement. ... will likely develop a restrictive lung disease 5) She will probably improve with additional corticosteroid therapy

Last Answer : Answers-2 The findings point to focal segmental glomerulosclerosis (FSGS), which leads to chronic renal failure in half of cases. The lack of resolution with corticosteroid therapy and the progression to chronic renal failure is what sets FSGS apart from minimal change disease.

Range of infrared ∙ A. 360 nm to 440 nm ∙ B. 670 nm to 10^3 nm ∙ C. 110 nm to 240 nm ∙ D. 770 nm to 10^6 nm

Description : Range of infrared ∙ A. 360 nm to 440 nm ∙ B. 670 nm to 10^3 nm ∙ C. 110 nm to 240 nm ∙ D. 770 nm to 10^6 nm

Last Answer : D. 770 nm to 10^6 nm

What plus 220 equals 360?

Description : What plus 220 equals 360?

Last Answer : 140

If w is the weight of water per cubic metre, Q is the discharge in cubic metres per sec and H is the total head, the required water horse power of the pump, is (A) wQH/15 (B) wQH/360 (C) wQH/220 (D) wQH/550

Description : If w is the weight of water per cubic metre, Q is the discharge in cubic metres per sec and H is the total head, the required water horse power of the pump, is (A) wQH/15 (B) wQH/360 (C) wQH/220 (D) wQH/550

Last Answer : (A) wQH/15

A parallel beam, of light of wavelength 100 nm passed through a sample of atomic hydrogen gas in ground state. (a) Assume that when a phton supplies s

Description : A parallel beam, of light of wavelength 100 nm passed through a sample of atomic hydrogen gas in ground state. (a) Assume that when a phton supplies s

Last Answer : A parallel beam, of light of wavelength 100 nm passed through a sample of atomic hydrogen gas ... of radiation that may be detected by the detector.

A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` Assuming that the entire photon energy is taken up by

Description : A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` Assuming that the entire photon energy is taken up by

Last Answer : A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` ... what kinetic energy will the electron be ejected?

What is Frequency of radiation with wavelength 436 NM?

Description : What is Frequency of radiation with wavelength 436 NM?

Last Answer : Need answer

What is the frequency of light with a wavelength of NM?

Description : What is the frequency of light with a wavelength of NM?

Last Answer : All light travels in the speed of light in vacuum, that is300,000 km/sec. The relevant formula is C = f*lambda, where C isthe speed of light, f is the frequency and lambda the wavelength ... terahertz.The color of this light, incidentally, is red. Please see thelinks. They are beautiful, anyway.

The wavelength of visible light extends from a. 0.8 to 1.0 nm b. 400 to 750 nm c. 200 to 660 nm d. 700 to 1200 nm

Description : The wavelength of visible light extends from a. 0.8 to 1.0 nm b. 400 to 750 nm c. 200 to 660 nm d. 700 to 1200 nm

Last Answer : b. 400 to 750 nm

The laser frequency when the light has the wavelength 800 nm is a. 375 x 10^12 Hz b. 475 x 10^15 Hz c. 375 x 10^9 Hz d. 375 x 10^18 Hz

Description : The laser frequency when the light has the wavelength 800 nm is a. 375 x 10^12 Hz b. 475 x 10^15 Hz c. 375 x 10^9 Hz d. 375 x 10^18 Hz

Last Answer : a. 375 x 10^12 Hz

At what particular wavelength is solar flux measured? A. 10.7 mm band B. 10.7 m band C. 10.7 cm band D. 10.7 nm band

Description : At what particular wavelength is solar flux measured? A. 10.7 mm band B. 10.7 m band C. 10.7 cm band D. 10.7 nm band

Last Answer : C. 10.7 cm band

The wavelength of light absorbed by Pr form of phytochrome is (a) 680 nm (b) 720 nm (c) 620 nm (d) 640 nm

Description : The wavelength of light absorbed by Pr form of phytochrome is (a) 680 nm (b) 720 nm (c) 620 nm (d) 640 nm

Last Answer : (a) 680 nm

A major breakthrough in the studies of cells came with the development of electron microscope. This is because (a) the electron microscope is more powerful than the light microscope as it uses a beam of electrons which has wavelength much longer than that of photons (b) the resolving power of the electron microscope is much higher than that of the light microscope (c) the resolving power of the electron microscope is 200 - 350 nm as compared to 0.1 - 0.2 nm for the light microscope (d) electron beam can pass through thick materials, whereas light microscopy requires thin sections.

Description : A major breakthrough in the studies of cells came with the development of electron microscope. This is because (a) the electron microscope is more powerful than the light microscope as it ... (d) electron beam can pass through thick materials, whereas light microscopy requires thin sections.

Last Answer : (b) the resolving power of the electron microscope is much higher than that of the light microscope

The wavelength of a visible extends from ∙ A. 0.8 to 1.6 um ∙ B. 400 to 750 nm ∙ C. 200 to 660 nm ∙ D. 700 to 1200 nm

Description : The wavelength of a visible extends from ∙ A. 0.8 to 1.6 um ∙ B. 400 to 750 nm ∙ C. 200 to 660 nm ∙ D. 700 to 1200 nm

Last Answer : B. 400 to 750 nm

How many modes possible with a multimode step-index with a core diameter of 50 um, a core refractive index of 1.6, a cladding refractive index of 1.584, and a wavelength of 1300 nm. ∙ A. 456 ∙ B. 213 ∙ C. 145 ∙ D. 372

Description : How many modes possible with a multimode step-index with a core diameter of 50 um, a core refractive index of 1.6, a cladding refractive index of 1.584, and a wavelength of 1300 nm. ∙ A. 456 ∙ B. 213 ∙ C. 145 ∙ D. 372

Last Answer : D. 372

Infrared light has a wavelength that is ∙ A. less than 400 nm ∙ B. more than 700 nm ∙ C. less than 700 nm ∙ D. a little over 400 nm

Description : Infrared light has a wavelength that is ∙ A. less than 400 nm ∙ B. more than 700 nm ∙ C. less than 700 nm ∙ D. a little over 400 nm

Last Answer : B. more than 700 nm

ange of wavelength of visible light ∙ A. 670 nm to 10^3 nm ∙ B. 440 nm to 540 nm ∙ C. 110 nm to 240 nm ∙ D. 390 nm to 770 nm

Description : ange of wavelength of visible light ∙ A. 670 nm to 10^3 nm ∙ B. 440 nm to 540 nm ∙ C. 110 nm to 240 nm ∙ D. 390 nm to 770 nm

Last Answer : D. 390 nm to 770 nm

What is the typical wavelength of light emitted from epitaxially grown LEDs? ∙ a. 840 nm ∙ b. 490 nm ∙ c. 480 nm ∙ d. 940 nm

Description : What is the typical wavelength of light emitted from epitaxially grown LEDs? ∙ a. 840 nm ∙ b. 490 nm ∙ c. 480 nm ∙ d. 940 nm

Last Answer : ∙ d. 940 nm

The wavelength of visible light extends from ∙ a. 0.8 to 1.0 nm ∙ b. 400 to 750 nm ∙ c. 200 to 660 nm ∙ d. 700 to 1200 nm

Description : The wavelength of visible light extends from ∙ a. 0.8 to 1.0 nm ∙ b. 400 to 750 nm ∙ c. 200 to 660 nm ∙ d. 700 to 1200 nm

Last Answer : b. 400 to 750 nm

The laser frequency when the light has the wavelength 800 nm is ∙ a. 375 x 1012 Hz ∙ b. 475 x 1015 Hz ∙ c. 375 x 109 Hz ∙ d. 375 x 1018 Hz

Description : The laser frequency when the light has the wavelength 800 nm is ∙ a. 375 x 1012 Hz ∙ b. 475 x 1015 Hz ∙ c. 375 x 109 Hz ∙ d. 375 x 1018 Hz

Last Answer : d. 375 x 1018 Hz

Red Laser light has a wavelength of a) 630.8 nm b) 630 cm c) 632.8 nm d) 639.9 nm

Description : Red Laser light has a wavelength of a) 630.8 nm b) 630 cm c) 632.8 nm d) 639.9 nm

Last Answer : c) 632.8 nm

The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. The smallest wavelength in the infrared region of the hydrogen Spectrum (to the nearest integer) is (A) 802nm (B) 823nm (C) 1882 nm (D) 1648 nm

Description : The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. The smallest wavelength in the infrared region of the hydrogen Spectrum (to the nearest integer) is (A) 802nm (B) 823nm (C) 1882 nm (D) 1648 nm

Last Answer : (B) 823nm

Amount of phenylacetic acid excreted in the urine in phenylketonuria is (A) 100–200 mg/dL (B) 200–280 mg/dL (C) 290–550 mg/dL (D) 600–750 mg/dL

Description : Amount of phenylacetic acid excreted in the urine in phenylketonuria is (A) 100–200 mg/dL (B) 200–280 mg/dL (C) 290–550 mg/dL (D) 600–750 mg/dL

Last Answer : Answer : C

In PS I the reaction centre chlorophyll a has an absorption peak at 700 nm, hence is called (A)____ while in PS II it has absorption maxima at 680 nm

Description : In PS I the reaction centre chlorophyll a has an absorption peak at 700 nm, hence is called (A)____ while in PS II it has absorption maxima at 680 nm

Last Answer : In PS I the reaction centre chlorophyll a has an absorption peak at 700 nm, hence is called (A) ... absorption maxima at 680 nm and is called (B)____

In organic molecules, fluorescence seldom results from absorption of UV radiation of wavelengths lower than (A) 350 nm (B) 200 nm (C) 300 nm (D) 250 nm

Description : In organic molecules, fluorescence seldom results from absorption of UV radiation of wavelengths lower than (A) 350 nm (B) 200 nm (C) 300 nm (D) 250 nm

Last Answer : (A) 350 nm

Along the α-helix each amino acid residue advances in nm by (A) 0.15 (B) 0.10 (C) 0.12 (D) 0.20

Description : Along the α-helix each amino acid residue advances in nm by (A) 0.15 (B) 0.10 (C) 0.12 (D) 0.20

Last Answer : Answer : A

Orcinol method is employed in the quantitation of (A) Nucleic acid (B) DNA (C) RNA (D) Proteins

Description : Orcinol method is employed in the quantitation of (A) Nucleic acid (B) DNA (C) RNA (D) Proteins

Last Answer : Answer : C

Diphenylamine method is employed in the quantitation of (A) Nucleic acid (B) RNA (C) DNA (D) Proteins

Description : Diphenylamine method is employed in the quantitation of (A) Nucleic acid (B) RNA (C) DNA (D) Proteins

Last Answer : Answer : C

If in a nucleic acid there are more than 8000 nucleotides it is most likely (A) RNA (B) DNA (C) Both (A) and (B) (D) None of these

Description : If in a nucleic acid there are more than 8000 nucleotides it is most likely (A) RNA (B) DNA (C) Both (A) and (B) (D) None of these

Last Answer : Answer : B

Which of the following statements about nucleic acid is most correct? (A) Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines (B) Both pentose nucleic acid and deoxypentose nucleic acid and deoxypentose nucleic acid Contain the same purines (C) RNA contains cytosine and thymine (D) DNA and RNA are hydrolysed by weak alkali

Description : Which of the following statements about nucleic acid is most correct? (A) Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines (B) Both pentose nucleic acid and deoxypentose ... (C) RNA contains cytosine and thymine (D) DNA and RNA are hydrolysed by weak alkali

Last Answer : Answer : B

The nucleic acid base found in mRNA but not in DNA is (A) Adenine (B) Cytosine (C) Guanine (D) Uracil

Description : The nucleic acid base found in mRNA but not in DNA is (A) Adenine (B) Cytosine (C) Guanine (D) Uracil

Last Answer : Answer : D

An enzyme is a (A) Carbohydrate (B) Lipid (C) Protein (D) Nucleic acid ENZYMES 171

Description : An enzyme is a (A) Carbohydrate (B) Lipid (C) Protein (D) Nucleic acid ENZYMES 171

Last Answer : Answer : C