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What are histones? What are their functions?
Biology Exemplar
Biology Exemplar

Class 11

NCERT Exemplar

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: The Living World

37 questions

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2

Chapter 2: Biological Classification

33 questions

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3

Chapter 3: Plant Kingdom

28 questions

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4

Chapter 4: Animal Kingdom

45 questions

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5

Chapter 5: Morphology of Flowering Plants

42 questions

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6

Chapter 6: Anatomy of Flowering Plants

52 questions

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7

Chapter 7: Structural Organization in Animals

48 questions

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8

Chapter 8: Cell: The Unit of Life

39 questions

Q1
What are plasmids? Describe their role in bacteria.
Q2
What are histones? What are their functions?
Q3
What structural and functional attributes must a cell have to be called a living cell?
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9

Chapter 9: Biomolecules

31 questions

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10

Chapter 10: Cell Cycle and Cell Division

43 questions

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11

Chapter 11: Transport in Plants

66 questions

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12

Chapter 12: Mineral Nutrition

39 questions

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13

Chapter 13: Photosynthesis in Higher Plants

59 questions

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14

Chapter 14: Respiration in Plants

42 questions

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15

Chapter 15: Plant Growth and Development

48 questions

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16

Chapter 16: Digestion and Absorption

34 questions

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17

Chapter 17: Breathing and Exchange of Gases

32 questions

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18

Chapter 18: Body Fluids and Circulation

42 questions

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19

Chapter 19: Excretory Products and their Elimination

44 questions

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20

Chapter 20: Locomotion and Movement

39 questions

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21

Chapter 21: Neural Control and Coordination

31 questions

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22

Chapter 22: Chemical Coordination and Integration

39 questions

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What are histones? What are their functions?

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Updated on: Oct 4, 2023

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Histones are the basic group of globular proteins that have a high content of basic amino acis, i.e., arginine and lysine. Histones forms the part of the chromosomal material in eukaryotic cells.
There are five types of histone proteins and . Four of them and ) occur in pairs to produce histone octamer called core of nucleosome.
Functions Histones bear positively charged ends, that attract negatively charged strands of DNA.
Histones provides a medium around which DNA winds, and they play a vital role in gene regulation, as they act as gene repressor. They form the chromatin material and provide stability as are not coagulated by heat.
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Question Text
What are histones? What are their functions?
Updated OnOct 4, 2023
TopicCell: The Unit of Life
SubjectBiology
ClassClass 11
Answer TypeText solution:1 Video solution: 1
Upvotes224
Avg. Video Duration9 min