What would happen if histones were to be | Class 12 Biology Chapter Molecular Basis of Inheritance, Molecular Basis of Inheritance NCERT Solutions

Question:

What would happen if histones were to be mutated and made rich in acidic amino acids such as aspartic acid and glutamic acid in place of basic amino acids such as lysine and arginine?

Answer:

If histones were mutated and made rich in acidic amino acids. They will not be able to keep the DNA coiled around them because DNA is negatively charged molecule and histones are positively charged due to basic amino acids. That is how, are attracted to each other. If histones become negatively charges, instead of binding, they will rather repel DNA. The packaging of DNA in eukaryotes would not happen. Therefore, the chromatin fibre would not be formed.

1
0
0
Report?

Report a problem on Specifications:

Email id:

Comments

< Previous Question

Next Question >

Popular questions of class 12 Biology

Q: What is spermatogenesis? Briefly describe the process of spermatogenesis.

Q: Why is reproduction essential for organisms? Answer

Q: Write a short note on
(a) Adaptations of desert plants and animals
(b) Adaptations of plants to water scarcity
(c) Behavioural adaptations in animals
(d) Importance of light to plants
(e) Effect of temperature or water scarcity and the adaptations of animals.

Q: With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte.

Q: What is DNA fingerprinting? Mention its application.

Q: Describe the structure of a seminiferous tubule.

Q: What is oogenesis? Give a brief account of oogenesis.

Q: What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.

Q: With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.

Q: Explain the Law of Dominance using a monohybrid cross.

Recently Viewed Questions of Class 12 Biology

Q: Does our blood have proteases and nucleases?

Q: Amniocentesis for sex determination is banned in our country. Is this ban necessary? Comment.

Q: What is bagging technique? How is it useful in a plant breeding programme?

Name a microbe used for statin production. How do statins lower blood cholesterol level?

Q: Name any two species of fungus, which are used in the production of the antibiotics.

Q: What is meant by emasculation? When and why does a plant breeder employ this technique?

Q: A child has blood group O. If the father has blood group A and mother blood group B, work out the genotypes of the parents and the possible genotypes of the other offsprings.

In a certain population, the frequency of three genotypes is as follows:
Genotypes: BB Bb bb
frequency: 22% 62% 16%
What is the likely frequency of B and b alleles?

Q: In which way has the study of biology helped us to control infectious diseases?

Q: What is DNA fingerprinting? Mention its application.

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

Read the question carefully and focus on the core concept being asked.
Reference examples and data from the chapter when answering questions about Molecular Basis of Inheritance.
Review previous year question papers to get an idea of how such questions may be framed in exams.
Practice answering questions within the time limit to improve your speed and accuracy.
Discuss your answers with your teachers or peers to get feedback and improve your understanding.

Comments

Comment(s) on this Question

Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 9: What would happen if histones were to be mutated and made rich in acidic amino acids such as asparti....

What would happen if histones were to be | Class 12 Biology Chapter Molecular Basis of Inheritance, Molecular Basis of Inheritance NCERT Solutions

< Previous Question

Next Question >

Popular questions of class 12 Biology

Recently Viewed Questions of Class 12 Biology

Study Tips for Answering NCERT Questions:

Comments

Comment(s) on this Question

Chapters for Class 12 Biology

Subjects for Class 12

Students Also Read

Important links

Quick Links

Resources

Support