Welcome to the DNA Structure and Function MCQs with Answers. In this post, we have shared DNA Structure and Function Online Test for different competitive exams. Find practice DNA Structure and Function Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding DNA Structure and Function.
| DNA, or deoxyribonucleic acid, is the molecule that carries the genetic instructions for life. To describe the structure of DNA, we must begin with its basic building blocks: nucleotides. Each nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base. The basic structure of DNA is a double helix, resembling a twisted ladder. The sides of the ladder are formed by alternating sugar and phosphate groups, while the rungs consist of paired nitrogenous bases. There are four types of nitrogenous bases in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair specifically (A with T and C with G) through hydrogen bonds, forming the rungs of the ladder. This specific pairing is crucial for DNA’s function in replication and transcription, ensuring that genetic information is accurately passed on. DNA as the genetic material plays a fundamental role in heredity and cellular function. It stores the instructions for building proteins, which are essential for the structure and function of cells. The sequence of bases in DNA determines the genetic code, which is transcribed into messenger RNA (mRNA) and then translated into proteins by ribosomes. The structure of DNA allows it to perform its function efficiently. During cell division, the double helix unwinds, and each strand serves as a template for creating a new complementary strand. This ensures that genetic information is accurately copied and transmitted to daughter cells. |
DNA Structure and Function Online Quiz
By presenting 3 options to choose from, DNA Structure and Function Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of DNA Structure and Function Questions and Answers and click over the correct answer.
- Test Name: DNA Structure and Function MCQ Quiz Practice
- Type: Quiz Test
- Total Questions: 40
- Total Marks: 40
- Time: 40 minutes
Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.
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