Biology
Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 13, Problem 1TY
Summary Introduction

Introduction: Molecules that are formed from the transcription of DNAs but do not get translated to proteins are called non-coding RNAs (ncRNAs). nRNAs affect gene expression. Examples of ncRNAs that are involved in epigenetics are miRNAs, piRNAs and siRNAs.

Expert Solution & Answer
Check Mark

Answer to Problem 1TY

Correct answer: DNA and RNA both bind to an ncRNA through base pairing. Hence, the correct answer is option e.

Explanation of Solution

Reason for correct answer:

Many different functions are carried out by ncRNAs because they have the ability to bind with many different types of molecules, such as DNA, other mRNAs, proteins or other small molecules. ncRNAs can affect different processes, such as DNA replication, transcription, and translation by binding to the complementary base pairs of the DNAs or RNAs.

Option e. is given as “both a and b”.

The types of molecules that could bind to an ncRNA through base pairing are DNA and RNA. Hence, the correct answer is option e.

Reasons for incorrect answer:

Option a. is given as, “DNA”.

ncRNAs affect gene expression by binding to different molecules, such as DNA, mRNA, proteins, and small molecules. They play a very important role in affecting transcriptional, post-transcriptional, and epigenetic regulation. On binding to DNA molecules, ncRNAs may affect DNA replication, transcription, and translation. This is possible through complementary base pairing of ncRNAs with DNA strands. However, ncRNAs bind to both RNAs and DNAs. Hence, option a. is incorrect.

Option b. is given as, “RNA”.

By binding to different molecules, such as DNA, mRNA, proteins, and small molecules, ncRNAs affect gene expression. Transcriptional, post-transcriptional and epigenetic regulation occurs as a result of this binding. Binding of ncRNAs to other mRNAs is possible through complementary base pairing. However, ncRNAs bind to both DNAs and RNAs. Hence, option b. is incorrect.

Option c. is given as, “protein”.

ncRNAs bind to different molecules such as DNA, mRNA, proteins and small molecules. They play a very important role in affecting transcriptional, post-transcriptional, and epigenetic regulation. Binding of ncRNAs with proteins does not occur by the process of complementary base pairing as proteins do not have bases. Hence, option c. is incorrect.

Option d. is given as, “small molecule”.

Small molecules bind to ncRNAs and help in maintaining transcriptional, post-transcriptional, and epigenetic regulation. Binding of ncRNAs with small molecules does not occur by the process of complementary base pairing as small molecules do not have bases. Hence, option d. is incorrect.

Hence, the options a., b., c., and d. are incorrect.

Conclusion

Thus, DNA and RNA both bind to ncRNA through base pairing to carry out regulation of transcription, translation, and epigenetic modifications.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
When an ncRNA functions as a decoy, ita. contains binding sites for many different proteins, therebypromoting the formation of a large complex.b. recognizes other ncRNAs and sequesters them, therebypreventing them from working.c. can alter its conformation, allowing it to switch betweenactive and inactivate conformations.d. may physically prevent or block a cellular process fromhappening.
Imagine the four basic components of gene regulation are DNA, RNA, proteins, and small molecules. Which of these things can ncRNA interact with?
Given that ncRNA can have separate protein interaction sequences and nucleotide interaction sequences, do you think a single ncRNA could guide different proteins to the same DNA sequence? Why or why not?
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY