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1. Determine the ph of a 0.30 M NaH2PO4 and 0.20 M H3PO4 solution. pka is 2.16. А. 1.3 В. 2.3 С. 3.3 D. 4.3 2. This is a type of RNA with an adaptor molecule that carries specific AA to the site of protein synthesis. A. Ribosomal RNA. B. Transfer RNA C. Messenger RNA D. Main RNA 3. In the interpretation of thin-layer chromatography results, Rf is the A. Ratio of distance transverse by the solvent front: Distance transverse by the compound subtracted by the distance transverse by the solvent front. B. Ratio of Distance transverse by the Solvent front: Distance transverse by the compound C. Ratio of Distance transverse by the compound: Distance transverse by the solvent front. D. Ratio of distance transverse by the solvent front: Distance transverse by the compound added to the distance transverse by the solvent front. 4. Arrange the correct sequence in DNA cloning. I. Bacteria grown in presence of antibiotics. II. Recombinant DNA is introduced into the bacterial cell by transformation. II. Cleaved plasmid and DNA of interest is combined by DNA ligase. IV. Bacteria are lysed and hybrid plasma are isolated. V. Plasmids are cut with EcoRI releasing copies of DNA of interest. A. I, II, III, IV, V. B. II, I, II, IV, V C. IV, I, III, II, V D. II, II, I, IV, V 5. Bial's- Orcinol test is A. Used to detect the presence of galactose and lactose. B. Used for general identification of carbohydrates. C. Used to differentiate between sugars containing ketone and aldehyde groups. D. Used to detect the presence of pentoses and pentosans. 6. A restriction endonuclease that produces blunt ends А. Тaql В. Нeall C. Both A and B D. None of the above.

1. Determine the ph of a 0.30 M NaH2PO4 and 0.20 M H3PO4 solution. pka is 2.16. А. 1.3 В. 2.3 С. 3.3 D. 4.3 2. This is a type of RNA with an adaptor molecule that carries specific AA to the site of protein synthesis. A. Ribosomal RNA. B. Transfer RNA C. Messenger RNA D. Main RNA 3. In the interpretation of thin-layer chromatography results, Rf is the A. Ratio of distance transverse by the solvent front: Distance transverse by the compound subtracted by the distance transverse by the solvent front. B. Ratio of Distance transverse by the Solvent front: Distance transverse by the compound C. Ratio of Distance transverse by the compound: Distance transverse by the solvent front. D. Ratio of distance transverse by the solvent front: Distance transverse by the compound added to the distance transverse by the solvent front. 4. Arrange the correct sequence in DNA cloning. I. Bacteria grown in presence of antibiotics. II. Recombinant DNA is introduced into the bacterial cell by transformation. II. Cleaved plasmid and DNA of interest is combined by DNA ligase. IV. Bacteria are lysed and hybrid plasma are isolated. V. Plasmids are cut with EcoRI releasing copies of DNA of interest. A. I, II, III, IV, V. B. II, I, II, IV, V C. IV, I, III, II, V D. II, II, I, IV, V 5. Bial's- Orcinol test is A. Used to detect the presence of galactose and lactose. B. Used for general identification of carbohydrates. C. Used to differentiate between sugars containing ketone and aldehyde groups. D. Used to detect the presence of pentoses and pentosans. 6. A restriction endonuclease that produces blunt ends А. Тaql В. Нeall C. Both A and B D. None of the above.

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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1. Determine the ph of a 0.30 M NaH2PO4 and 0.20 M H3PO4 solution. pka is 2.16. А. 1.3 В. 2.3 С. 3.3 D. 4.3 2. This is a type of RNA with an adaptor molecule that carries specific AA to the site of protein synthesis. A. Ribosomal RNA. B. Transfer RNA C. Messenger RNA D. Main RNA 3. In the interpretation of thin-layer chromatography results, Rf is the A. Ratio of distance transverse by the solvent front: Distance transverse by the compound subtracted by the distance transverse by the solvent front. B. Ratio of Distance transverse by the Solvent front: Distance transverse by the compound C. Ratio of Distance transverse by the compound: Distance transverse by the solvent front. D. Ratio of distance transverse by the solvent front: Distance transverse by the compound added to the distance transverse by the solvent front. 4. Arrange the correct sequence in DNA cloning. I. Bacteria grown in presence of antibiotics. II. Recombinant DNA is introduced into the bacterial cell by transformation. III. Cleaved plasmid and DNA of interest is combined by DNA ligase. IV. Bacteria are lysed and hybrid plasma are isolated. V. Plasmids are cut with EcoRI releasing copies of DNA of interest. A. I, II, III, IV, V. B. III, I, II, IV, V C. IV, I, III, II, V D. II, II, I, IV, V 5. Bial's- Orcinol test is A. Used to detect the presence of galactose and lactose. B. Used for general identification of carbohydrates. C. Used to differentiate between sugars containing ketone and aldehyde groups. D. Used to detect the presence of pentoses and pentosans. A restriction endonuclease that produces blunt ends А. Тaql В. Нeall C. Both A and B 6. D. None of the above.
Transcribed Image Text:1. Determine the ph of a 0.30 M NaH2PO4 and 0.20 M H3PO4 solution. pka is 2.16. А. 1.3 В. 2.3 С. 3.3 D. 4.3 2. This is a type of RNA with an adaptor molecule that carries specific AA to the site of protein synthesis. A. Ribosomal RNA. B. Transfer RNA C. Messenger RNA D. Main RNA 3. In the interpretation of thin-layer chromatography results, Rf is the A. Ratio of distance transverse by the solvent front: Distance transverse by the compound subtracted by the distance transverse by the solvent front. B. Ratio of Distance transverse by the Solvent front: Distance transverse by the compound C. Ratio of Distance transverse by the compound: Distance transverse by the solvent front. D. Ratio of distance transverse by the solvent front: Distance transverse by the compound added to the distance transverse by the solvent front. 4. Arrange the correct sequence in DNA cloning. I. Bacteria grown in presence of antibiotics. II. Recombinant DNA is introduced into the bacterial cell by transformation. III. Cleaved plasmid and DNA of interest is combined by DNA ligase. IV. Bacteria are lysed and hybrid plasma are isolated. V. Plasmids are cut with EcoRI releasing copies of DNA of interest. A. I, II, III, IV, V. B. III, I, II, IV, V C. IV, I, III, II, V D. II, II, I, IV, V 5. Bial's- Orcinol test is A. Used to detect the presence of galactose and lactose. B. Used for general identification of carbohydrates. C. Used to differentiate between sugars containing ketone and aldehyde groups. D. Used to detect the presence of pentoses and pentosans. A restriction endonuclease that produces blunt ends А. Тaql В. Нeall C. Both A and B 6. D. None of the above.
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