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A series of multiple-choice and short-answer questions related to biochemistry, specifically focusing on nucleic acids, dna, and rna. It covers topics such as base pairing, nucleotide structure, and the differences between dna and rna forms. The questions are designed to test understanding of key concepts in molecular biology and biochemistry, making it a useful resource for students studying these subjects. It includes questions about the structure and function of dna and rna, including base pairing rules, the components of nucleotides, and the differences between a-form and z-form dna. It also covers topics such as the role of trna, the function of codons, and the contribution of noncovalent interactions to rna structure. Suitable for students preparing for exams or quizzes in biochemistry or molecular biology.
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3 / 3 pts . In RNA, guanine always pairs with Thymine Guanine Cytosine Uracil Both A and B CYSTOSINE
3 / 3 pts DNA is built from which of the following? Nucleosides Genes Purines Nucleotide Codons NUCLEOTIDE
3 / 3 pts The Z-form helix of DNA is stabilized mainly by. Ionic bonds Covalent bonds Hydrogen bonds Ion-dipole bonds Hydrogen covalent bonds
3 / 3 pts HYDROGEN BONDS
Guanine-Thymine
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3 / 3 pts Guanine-Adenine Cytosine-Uracil ADENINE-THYMINE How many hydrogen bonds are made between T and its complementary nucleotide? 2 3 4 5 6 2 The base sequence along one strand of DNA of 5โ-GCATGAGCC-3โ. What is thesequence of the complementary strand of DNA? 5โ-CTAGTCCGC-3โ 3โ-CGTACTCGG-5โ 3โ-CTAGTCCGC-5โ 3โ-CAGTCAGCT-5โ
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Which of the following types of RNA functions as the molecule to bring amino acids toribosomes? mRNA gRNA rRNA snRNA tRNA tRNA Which of the following is the set of three sequential nucleotides that encodes for aparticular amino acid? Codon Anticodon Allele Gene Chromosome CODON A type of DNA that has a right-handed helix is theA-form X-Form C-form L-form Z-form A-FORM Which of the following is a second messenger in cells?
0 / 3 pts FAD cAMP AMP dATP UTPcAMP functions as a protein coenzyme. ATP AMP FADcAMP GGG FAD rRNA makes up about percent of ribosomes. 35 65 20 90 15 65 The conclusion that G and C are present in DNA in equimolar amounts is credited to . James Watson
3 / 3 pts A Besides ATP, which other nucleotide is part of energy storage in cells? ATP UTP TTP CTP GTP GTP Which of the following is a nucleoside?
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D. Both B and C E. None of the above C A major component of RNA but not DNA is: AMP GMP UMP CMP TMP UMP
5 / 5 pts On the following molecule, which letter (A, B, C, D, or E) indicates the 5โ end? B (Short answer) Scientists say that two DNA strands are complementary. Briefly describewhat is meant by complementary. Show one example in your response.
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In DNA, the pentose E serves as the monosaccharides. A) Nucleotides B) adenine and guanine C) Uracil D) G-C E) 2 - deoxyribose
5 / 5 pts (Short answer) The monomers of RNA nucleic acids, called nucleotides, consistof three parts. What are those three parts? (Give three) Your Answer: phosphoric acid, ribose (a pentose sugar) and an organic base.
