Biochem Module 6 questions and answers well illustrated.

Biochem Module 6 questions and answers well illustrated. In DNA, adenine always pairs with ________. - Thymine - Guanine - Uracil - Cytosine - correct answers.- Thymine DNA is built from which of the following? - Nucleosides - Genes - Purines - Nucleotide - Codons - correct answers.- Nucleotide The double helix of DNA is stabilized mainly by __________. - Ionic bonds - Covalent bonds - Ion-dipole bonds - Hydrogen bonds - Hydrogen covalent bonds - correct answers.- Hydrogen bonds Which of the following pentose sugars is a constituent of DNA? - Xylose - Ribitol - 2-deoxyribose - Arabinose - Ribose - correct answers.- 2-deoxyribose Pyrimidines have ________ ring(s), (each) containing ______ nitrogen(s), whereas purines have ________ ring(s), (each) containing ______ nitrogen(s). - 1; 1; 1; 1 - 1; 2; 2; 2 - 2; 2; 1; 2 - 2; 1; 1; 2 - 2; 2; 1; 1 - correct answers.- 1; 2; 2; 2 Identify the base guanine from among the following structures. - correct answers.5 NH in rings with a double bonded O Which of the following nucleic acids is responsible for using the encoded genetic information to produce of proteins found in living organisms? - Peptide nucleic acid - Ribonucleic acid - Ribitol nucleic acid - Deoxyribonucleic acid - Glycerol nucleic acid - correct answers.- Ribonucleic acid Identify the complementary bases from the following. - Adenine-Cytosine - Adenine- Thymine - Guanine-Thymine - Guanine-Adenine - Cytosine-Uracil - correct answers.- Adenine- Thymine How many hydrogen bonds are made between G and its complementary nucleotide? - 1 - 2 - 3 - 4 - 5 - correct answers.- 3 The base sequence along one strand of DNA of 5'-GCATGAGCC-3'. What is the sequence of the complementary strand of DNA? - 5'-CTAGTCCGC-3' - 3'-CGTACTCGG-5' - 3'-CTAGTCCGC-5' - 3'-CAGTCAGCT-5' - 5'-CTGACTACG-3' - correct answers.- 3'-CGTACTCGG-5' Which of the following types of RNA functions to carry genetic information from the DNA to ribosome? - mRNA - gRNA - rRNA - snRNA - tRNA - correct answers.- mRNA Which of the following is the set of three sequential nucleotides that encodes for a particular amino acid? - Codon - Anticodon - Allele - Gene - Chromosome - correct answers.- Codon A type of DNA that has a right-handed helix is the __________. - t-form - X-Form - B-form - L-form - Z-form - correct answers.- B-form Which of the following is a second messenger in cells? - FAD - cAMP - AMP - dATP - UTP - correct answers.- cAMP Which of the following acts a coenzyme? - FAD - ATP - AMP - cAMP - GGG - correct answers.- FAD rRNA makes up about _________ percent of ribosomes. - 35 - 65 - 20 - 90 - 15 - correct answers.- 65 The conclusion that G and C are present in DNA in equimolar is credited to ______. - James Watson - Francis Crick