Molecular Genetics MCQs with Answers

adminJune 13, 2024

0 9 2 minutes read

Welcome to the Molecular Genetics MCQs with Answers. In this post, we have shared Molecular Genetics Online Test for different competitive exams. Find practice Molecular Genetics Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Molecular Genetics.

Molecular genetics is a specialized branch of genetics that focuses on the structure and function of genes at a molecular level. It explores how genetic information is encoded, replicated, and expressed, providing critical insights into the mechanisms underlying inheritance and gene regulation.

Key areas within molecular genetics include gene structure, function, and regulation. Researchers study the DNA sequence of genes, how they are transcribed into RNA, and how RNA is translated into proteins. This understanding helps to elucidate how genetic variations contribute to diseases and traits. Techniques such as PCR (polymerase chain reaction), gel electrophoresis, and DNA sequencing are fundamental for analyzing genetic material.

One of the significant advancements in molecular genetics is the development of CRISPR-Cas9, a revolutionary tool for gene editing. This technology allows scientists to make precise changes to DNA, offering potential cures for genetic disorders and enabling the creation of genetically modified organisms (GMOs).

Molecular genetics also plays a crucial role in genomics, which involves studying entire genomes to understand genetic diversity and disease susceptibility. This field is integral to personalized medicine, where genetic information is used to tailor treatments to individual patients.

Molecular Genetics Online Quiz

By presenting 3 options to choose from, Molecular Genetics 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 Molecular Genetics Questions and Answers and click over the correct answer.

Test Name: Molecular Genetics 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.

Molecular Genetics

Please fill out the form before starting Quiz.

1 / 40

The region of a gene that is transcribed into RNA is the ____.

Coding sequence

Promoter

Terminator

2 / 40

The sequence of nucleotides in mRNA that specifies the order of amino acids in a protein is a ____.

Gene

Anticodon

Codon

3 / 40

The molecule that carries amino acids to the ribosome during protein synthesis is ____.

rRNA

tRNA

mRNA

4 / 40

The molecule that carries genetic information in cells is ____.

RNA

DNA

Protein

5 / 40

The process by which genes are turned off or on in response to environmental changes is ____.

Gene regulation

DNA replication

Chromosome packing

6 / 40

The process by which DNA is copied into RNA is called ____.

Translation

Replication

Transcription

7 / 40

The process by which a cell uses information from mRNA to synthesize a protein is ____.

Transcription

Translation

Replication

8 / 40

The sequence of three nucleotides in mRNA that codes for a specific amino acid is ____.

Gene

Codon

Anticodon

9 / 40

The process by which RNA molecules are used to inhibit gene expression is ____.

Transcription

Translation

RNA interference

10 / 40

The molecule that carries the genetic code from the nucleus to the cytoplasm during protein synthesis is ____.

rRNA

tRNA

mRNA

11 / 40

The type of mutation that results in a single nucleotide change in DNA is ____.

Chromosomal mutation

Frameshift mutation

Point mutation

12 / 40

The molecule that carries genetic information from generation to generation in most organisms is ____.

RNA

DNA

Protein

13 / 40

The process by which mRNA is decoded and a protein is synthesized is ____.

Transcription

Replication

Translation

14 / 40

The enzyme responsible for cutting DNA at specific sequences during recombinant DNA technology is ____.

Polymerase

Restriction enzyme

Ligase

15 / 40

The enzyme responsible for adding nucleotides to a growing DNA strand during replication is ____.

Ligase

DNA polymerase

RNA polymerase

16 / 40

The process by which a cell makes a copy of its DNA is ____.

Transcription

Translation

Replication

17 / 40

The process by which a single gene can code for multiple proteins is ____.

Alternative splicing

RNA interference

DNA methylation

18 / 40

The sequence of nucleotides in DNA that provides instructions for making a protein is a ____.

Gene

Codon

Chromosome

19 / 40

The region of a gene that does not code for protein and is removed during RNA processing is ____.

Intron

Codon

Exon

20 / 40

The enzyme responsible for sealing nicks in the sugar-phosphate backbone of DNA is ____.

Polymerase

Ligase

Helicase

21 / 40

The type of mutation that results from the insertion or deletion of nucleotides in DNA is ____.

Frameshift mutation

Silent mutation

Point mutation

22 / 40

The building blocks of DNA and RNA are ____.

Amino acids

Nucleotides

Monosaccharides

23 / 40

The enzyme responsible for joining Okazaki fragments during DNA replication is ____.

Helicase

Polymerase

Ligase

24 / 40

The structure of DNA was first described by ____.

Watson and Crick

Mendel

Darwin

25 / 40

The enzyme responsible for unwinding DNA ahead of the replication fork is ____.

Polymerase

Ligase

Helicase

26 / 40

The enzyme responsible for unwinding DNA during replication is ____.

Ligase

Polymerase

Helicase

27 / 40

The type of RNA that forms part of the ribosome and helps translate mRNA into a protein is ____.

tRNA

mRNA

rRNA

28 / 40

The base that pairs with adenine in DNA is ____.

Cytosine

Thymine

Guanine

29 / 40

The process by which a cell makes an RNA copy of a gene sequence is called ____.

Transcription

Replication

Translation

30 / 40

The process by which RNA is synthesized from a DNA template is ____.

Replication

Transcription

Translation

31 / 40

The complementary sequence to the DNA strand: 5'-ATCGTACG-3' is ____.

5'-TAGCATGC-3'

3'-TAGCATGC-5'

3'-UAGCAUGC-5'

32 / 40

The site on the tRNA molecule that binds to a specific amino acid is the ____.

Amino acid

Anticodon

Codon

33 / 40

The enzyme responsible for synthesizing RNA from a DNA template is ____.

RNA polymerase

Helicase

DNA polymerase

34 / 40

The type of RNA that carries amino acids to the ribosome during protein synthesis is ____.

tRNA

rRNA

mRNA

35 / 40

The enzyme responsible for proofreading and correcting errors in newly synthesized DNA is ____.

RNA polymerase

Ligase

DNA polymerase

36 / 40

The process by which segments of pre-mRNA are removed and remaining segments are spliced together is ____.

DNA splicing

Protein splicing

RNA splicing

37 / 40

The process by which information from mRNA is used to synthesize proteins is ____.

Transcription

Translation

Replication

38 / 40

The enzyme responsible for synthesizing RNA primers during DNA replication is ____.

Ligase

Helicase

Primase

39 / 40

The DNA sequence where RNA polymerase binds to initiate transcription is the ____.

Terminator

Enhancer

Promoter

40 / 40

The DNA sequence that signals the end of transcription is the ____.

Terminator

Enhancer

Promoter

Download Certificate of Quiz Molecular Genetics

On the end of Quiz, you can download the certificate of the quiz if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn) and get more job offers.

If you are interested to enhance your knowledge regarding English, Physics, Chemistry, and Computer please click on the link of each category, you will be redirected to dedicated website for each category.

adminJune 13, 2024

0 9 2 minutes read