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Molecular Basis of Inheritance

This document contains an exam on molecular genetics with 11 questions covering topics like DNA structure, transcription, translation, gene regulation, DNA packaging, DNA fingerprinting techniques, and the functions of various enzymes involved in DNA replication and processing. It tests understanding of concepts like mRNA transcription, the lac operon in E. coli, DNA compaction in the nucleus, using DNA fingerprinting to identify a criminal, and distinguishing exons from introns in eukaryotic gene expression.

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Biju Mylachal
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608 views1 page

Molecular Basis of Inheritance

This document contains an exam on molecular genetics with 11 questions covering topics like DNA structure, transcription, translation, gene regulation, DNA packaging, DNA fingerprinting techniques, and the functions of various enzymes involved in DNA replication and processing. It tests understanding of concepts like mRNA transcription, the lac operon in E. coli, DNA compaction in the nucleus, using DNA fingerprinting to identify a criminal, and distinguishing exons from introns in eukaryotic gene expression.

Uploaded by

Biju Mylachal
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Molecular Basis of Inheritance

HSE II UNIT TEST


ZOOLOGY Time.1hrs Marks.30

1. The sequence of coding strand in a transcription unit is written as follows: 5 ATGCATGCATGCATGCATGC 3 Write down the sequence of m RNA (1) 2.

7. Human Genome Project is a mega project in favour of Mankind a) Why HGP is called as a mega project ? b) What are the goals of this project ? c) List any four salient features of HGP. (5) 8. Schematic structure of a transcription unit is given below .Identify A, B, C &D (2)

9. Observe the diagram and answer the following questions.

The above figure is the representation of lac operon in E.coli a) Name the components of lac operon. b) Name the substance which acts as inducer. c) Explain what happens when inducer is present in the medium of E.coli d)Name the enzyme denoted by A,B & C (4) 3. The length of DNA is far greater than the dimension of the nucleus. Mention how the DNA is packed within the cell. (1) 4.Three DNA samples from a crime scene is given below. (4)

a) Name the above experiment b) What is the importance of this experiment.? c) What are the steps involved in this experiment ? (4) 10. . Observe the diagram and answer the following questions

DNA of Ramu

DNA of Rajesh

Sample DNA collected from the crime scene a) Identify the culprit b) Which technique helped you to identify the culprit ? c) What is the principle behind the above technique ? d) What are important steps involved in the technique 5. Name A, B, C & D (1)

a) Name the process shown in the above diagram. b) Differentiate exons from introns. c) Compare the above process with Prokaryotes. (4) 6. 11. Mention the functions a) Operator gene b)DNA polymerase c) DNA ligase d) Restriction endonuclease (4)

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