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
Transcription and Translation 1. What is the main function of transcription and translation? (2 marks) 2. How is transcription different in eukaryotic and prokaryotic cells? (2 marks) 3. Explain the difference between pre-mRNA and post-transcript mRNA. (2 marks) 4. What is the function of the following: (4 marks) i. the cap ii. spliceosome iii. Poly A tail iv. termination sequence 5. What are advantages to the wobble feature of the genetic code? (2 marks) 6. Explain the difference between the: (3 marks) i. A site & P site ii. codon & anticodon iii. gene expression and gene regulation 7. Explain how the stop codon allows for termination. (1 mark) 8. In your own words, summarize the process of translation. (2 marks)
In this activity you will research performance enhancers that affect the endocrine system or nervous system. You will submit a 1 page paper on one performance enhancer of your choice. Be sure to include: the specific reason for use the alleged results on improving performance how it works how it affect homeostasis and improves performance any side-effects of this substance
Neurons and Reflexes 1. Describe the function of the: a) dendrite b) axon c) cell body d) myelin sheath e) nodes of Ranvier f) Schwann cells g) motor neuron, interneuron and sensory neuron 2. List some simple reflexes. Explain why babies are born with simple reflexes. What are they and why are they necessary. 3. Explain why you only feel pain after a few seconds when you touch something very hot but you have already pulled your hand away. 4. What part of the brain receives sensory information? What part of the brain directs you to move your hand away? 5. In your own words describe how the axon fires.
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
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY