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| Nucleic acids are essential biomolecules that store and transmit genetic information in living organisms. They are composed of nucleotide monomers, each consisting of a phosphate group, a pentose sugar (ribose in RNA or deoxyribose in DNA), and a nitrogenous base (adenine, guanine, cytosine, thymine in DNA, and uracil in RNA). The sequence of these nitrogenous bases along the nucleic acid strand determines the genetic code and plays a crucial role in protein synthesis and cellular function.
DNA (deoxyribonucleic acid) is double-stranded and forms a double helix structure, while RNA (ribonucleic acid) is usually single-stranded. DNA stores genetic information and undergoes replication to pass this information to daughter cells during cell division. RNA, on the other hand, acts as a messenger carrying genetic instructions from DNA to guide protein synthesis. In MCQs on nucleic acids, students are tested on various aspects such as the structure and function of DNA and RNA, the differences between them, the base pairing rules, the role of nucleic acids in genetic inheritance, and their involvement in cellular processes like transcription and translation. Understanding nucleic acids is crucial in fields like genetics, molecular biology, biotechnology, and medicine, as it provides insights into how genetic information is encoded, expressed, and inherited across generations. These MCQs help students grasp these fundamental concepts and prepare effectively for exams and assessments in related disciplines. |
Nucleic Acids Online Quiz
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- Test Name: Nucleic Acids MCQ Quiz Practice
- Type: Quiz Test
- Total Questions: 40
- Total Marks: 40
- Time: 40 minutes
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Nucleic Acids Flashcards
What is the function of mRNA in protein synthesis?
Carries genetic information from DNA to ribosomes
What is the significance of the genetic code being degenerate?
Multiple codons can code for the same amino acid
Which of the following is a function of microRNAs (miRNAs) in gene regulation?
Post-transcriptional gene silencing
What is the enzyme responsible for adding nucleotides to the growing RNA chain during transcription?
RNA polymerase
What is the function of DNA ligase in DNA replication?
Joins Okazaki fragments on the lagging strand
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