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Chapters
2: Reproduction in Lower and Higher Animals
3: Inheritance and Variation
▶ 4: Molecular Basis of Inheritance
5: Origin and Evolution of Life
6: Plant Water Relation
7: Plant Growth and Mineral Nutrition
8: Respiration and Circulation
9: Control and Co-ordination
10: Human Health and Diseases
11: Enhancement of Food Production
12: Biotechnology
13: Organisms and Populations
14: Ecosystems and Energy Flow
15: Biodiversity, Conservation and Environmental Issues
![Balbharati solutions for बायोलॉजी [अंग्रेजी] कक्षा १२ महाराष्ट्र राज्य बोर्ड chapter 4 - Molecular Basis of Inheritance - Shaalaa.com](/images/biology-english-standard-12-maharashtra-state-board_6:429f7f9009264240a77c8945f6342a63.JPG "Balbharati solutions for बायोलॉजी [अंग्रेजी] कक्षा १२ महाराष्ट्र राज्य बोर्ड chapter 4 - Molecular Basis of Inheritance")
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Solutions for Chapter 4: Molecular Basis of Inheritance
Below listed, you can find solutions for Chapter 4 of Maharashtra State Board Balbharati for बायोलॉजी [अंग्रेजी] कक्षा १२ महाराष्ट्र राज्य बोर्ड.
Balbharati solutions for बायोलॉजी [अंग्रेजी] कक्षा १२ महाराष्ट्र राज्य बोर्ड 4 Molecular Basis of Inheritance Exercises [Pages 92 - 93]
Multiple Choice Question:
Griffith worked on ____________.
Bacteriophage
Drosophila
Frog eggs
Streptococci
Multiple Choice Question:
The molecular knives of DNA are _______.
Ligases
Polymerases
Endonucleases
Transcriptase
Multiple Choice Question:
Translation occurs in the _______.
nucleus
cytoplasm
nucleolus
lysosomes
The enzyme required for transcription is _______.
DNA polymerase
RNA polymerase
Restriction enzyme
RNAase
Multiple Choice Question:
Transcription is the transfer of genetic information from _______.
DNA to RNA
tRNA to mRNA
DNA to mRNA
mRNA to tRNA
Multiple Choice Question:
Which of the following is NOT part of protein synthesis?
Replication
Translation
Transcription
All of these
Multiple Choice Question:
In the RNA molecule, which nitrogen base is found in place of thymine?
Guanine
Cytosine
Thymine
Uracil
How many codons are needed to specify three amino acids?
3
6
9
12
Multiple Choice Question:
Which out of the following is not an example of an inducible operon?
Lactose operon
Histidine operon
Arabinose operon
Tryptophan operon
Multiple Choice Question:
Place the following event of translation in the correct sequence
i. Binding of met-tRNA to the start codon.
ii. Covalent bonding between two amino acids.
iii. Binding of second tRNA.
iv. Joining of small and large ribosome subunits.
iii, iv, i, ii
i, iv, iii, ii
iv, iii, ii, i
ii, iii, iv, i
What is the function of an RNA primer during protein synthesis?
Very Short Answer Question:
Why the genetic code is considered as commaless?
What is genome?
Which enzyme does remove supercoils from replicating DNA?
Very Short Answer Question:
Why are Okazaki fragments formed on lagging strand only?
Very Short Answer Question:
When does DNA replication takes place?
Define the term codon.
Define the term codogen.
What is degeneracy of genetic code?
Very Short Answer Question:
Which are the nucleosomal 'core' histones?
Short Answer Question:
Write a short note on DNA packaging in the eukaryotic cell.
Enlist the characteristics of genetic code.
Write a note on applications of DNA fingerprinting.
Short Answer Question:
Explain the role of lactose in ‘Lac Operon’.
Short Answer Question:
Write a note on Human genome project (HGP).
Short Answer Question:
Describe the structure of ‘Operon’.
Short Answer Question:
In the figure below A, B and C are three types of ______.
Short Answer Question:
Identify the labeled structures on the following diagram of translation.
- Part A is the _______
- Part B is the _______
- Part C is the _______
Short Answer Question:
Match the entries in column I with those of column II and choose the correct answer.
| Column I | Column II |
| A. Alkali treatment | i. Separation of DNA fragments on gel slab |
| B. Southern blotting | ii. Split DNA fragments into single strands |
| C. Electrophoresis | iii. DNA transferred to nitrocellulose sheet |
| D. PCR | iv. X-ray photography |
| E. Autoradiography | v. Produce fragments of different sizes |
| F. DNA treated with REN | vi. DNA amplification |
Long Answer Question:
Explain the process of DNA replication.
Describe the process of transcription in protein synthesis.
Long Answer Question:
Describe the process of translation in protein synthesis.
Long Answer Question:
Describe the ‘Lac-operon’.
Long Answer Question:
Justify the statement. If the answer is false, change the underlined word(s) to make the statement true
The DNA molecule is double-stranded and the RNA molecule is single-stranded.
True
False
Long Answer Question:
Justify the statement. If the answer is false, change the underlined word(s) to make the statement true
The process of translation occurs at the ribosome.
True
False
Long Answer Question:
Justify the statement. If the answer is false, change the underlined word(s) to make the statement true
The job of mRNA is to pick up amino acids and transport them to the ribosomes.
True
False
Long Answer Question:
Justify the statement. If the answer is false, change the underlined word(s) to make the statement true
Transcription must occur before translation may occur.
True
False
Long Answer Question:
Guess (i) the possible location of DNA on the collected evidence from a crime scene and (ii) the possible sources of DNA.
| Evidence | Possible location of DNA on the evidence | Sources of DNA |
| e.g. Eyeglasses | e.g. Ear pieces | e.g. Sweat, Skin |
| Bottle, Can, Glass | Sides, mouthpiece | __________ |
| __________ | Handle | Sweat, skin, blood |
| Used cigarette | Cigarette butt | ____________ |
| Bite mark | ____________ | Saliva |
| __________ | Surface area | Hair, semen, sweet, urine |
Solutions for 4: Molecular Basis of Inheritance
Balbharati solutions for बायोलॉजी [अंग्रेजी] कक्षा १२ महाराष्ट्र राज्य बोर्ड chapter 4 - Molecular Basis of Inheritance
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Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in बायोलॉजी [अंग्रेजी] कक्षा १२ महाराष्ट्र राज्य बोर्ड chapter 4 Molecular Basis of Inheritance are Overview of Molecular Basis of Inheritance, Deoxyribonucleic Acid (DNA), Griffith’s Experiment, Avery, McCarty and MacLeod’s Experiment, The Hershey-Chase Experiment, Packaging of DNA Helix, DNA Replication, Mechanism of DNA Replication, Mechanism of Translation, Regulation of Gene Expression, Operon Concept, The Lac Operon, Genomics, Human Genome Project, DNA Fingerprinting, Semi-Conservative Replication, Protein Synthesis, Transcription, Transcription Unit and the Gene, Genetic Code, Characteristics of the Genetic Code, Mutations and Genetic Code, tRNA – the Adapter Molecule, Translation.
Using Balbharati बायोलॉजी [अंग्रेजी] कक्षा १२ महाराष्ट्र राज्य बोर्ड solutions Molecular Basis of Inheritance exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board बायोलॉजी [अंग्रेजी] कक्षा १२ महाराष्ट्र राज्य बोर्ड students prefer Balbharati Textbook Solutions to score more in exams.
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