Exam Details
| Subject | Genetics | |
| Paper | ||
| Exam / Course | Bachelor Degree Programme (Elective Course: Life Science) | |
| Department | School of Sciences (SOS) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 8 ILSE-Osl
BACBELOROF SCIENCE (B.Sc.)
Term-End Examination
December, 2016
03124
LIFE SCIENCE LSE-03 GENETICS
Time hours Maximum Marks: 50
Note: Question· no. 1 is compulsory. Attempt any four questions from questions·no. 2 to 7.
1. Fill in the blanks in any· four of the following:
In a population the frequencies of a pair of alleles remain constant after generation.
The phenotypic variance is a measure of the of a trait.
counselling involves advising individuals about inheriting genetic disorders.
In 1952, a mutant strain of fungus called poky was identified.
During interphase the nucleus has a appearance.
Write suitable terms for any four of the following: 4
A protein molecule which recognises and binds to a foreign substance introduced into the organism.
A genetic disease in which there is blood-clotting defect.
The spread of cancer cells through blood or lymphatic vessels to other tissues where they form new growths.
A group of genes making up a regulatory or control unit which includes an operator, a promoter and structural genes.
The set of genes required to metabolise lactose in bacteria.
Match the items given under Column A and Column B correctly and rewrite them: 2
Column A Column B
HLA Heritable changes in the genetic material
T-cells Capability to develop into a complete organism
Mutation Major histocompatibility complex
Totipotency Cell mediated immunity
2. Write short notes on any four of the following: 4 x 2 1/2=10
Female Pseudohermaphroditism
Nucleosome
Down Syndrome
Chemical Mutagens
Therapy for Inherited Diseases
3. State three reasons for Mendel's success. 6
What is trihybrid cross? Explain it with the help of a diagram. 4
4. Describe the physical structure of DNA. Explain how its denaturation and renaturation occur. 5+5=10
5. Explain by citing example of a prokaryote, the process of enzyme induction and repression. 10
6. Outline the process of creating a recombinant DNA molecule mentioning the enzymes needed for this technique. Explain briefly any two applications of genetic engineering technique. 6+4=10
7. Write accounts of any two of the following: 5+5=10
Prenatal sex determination
Lytic cycle of a bacteriophage
Teratogenesis
Genetical basis of mental disorders
BACBELOROF SCIENCE (B.Sc.)
Term-End Examination
December, 2016
03124
LIFE SCIENCE LSE-03 GENETICS
Time hours Maximum Marks: 50
Note: Question· no. 1 is compulsory. Attempt any four questions from questions·no. 2 to 7.
1. Fill in the blanks in any· four of the following:
In a population the frequencies of a pair of alleles remain constant after generation.
The phenotypic variance is a measure of the of a trait.
counselling involves advising individuals about inheriting genetic disorders.
In 1952, a mutant strain of fungus called poky was identified.
During interphase the nucleus has a appearance.
Write suitable terms for any four of the following: 4
A protein molecule which recognises and binds to a foreign substance introduced into the organism.
A genetic disease in which there is blood-clotting defect.
The spread of cancer cells through blood or lymphatic vessels to other tissues where they form new growths.
A group of genes making up a regulatory or control unit which includes an operator, a promoter and structural genes.
The set of genes required to metabolise lactose in bacteria.
Match the items given under Column A and Column B correctly and rewrite them: 2
Column A Column B
HLA Heritable changes in the genetic material
T-cells Capability to develop into a complete organism
Mutation Major histocompatibility complex
Totipotency Cell mediated immunity
2. Write short notes on any four of the following: 4 x 2 1/2=10
Female Pseudohermaphroditism
Nucleosome
Down Syndrome
Chemical Mutagens
Therapy for Inherited Diseases
3. State three reasons for Mendel's success. 6
What is trihybrid cross? Explain it with the help of a diagram. 4
4. Describe the physical structure of DNA. Explain how its denaturation and renaturation occur. 5+5=10
5. Explain by citing example of a prokaryote, the process of enzyme induction and repression. 10
6. Outline the process of creating a recombinant DNA molecule mentioning the enzymes needed for this technique. Explain briefly any two applications of genetic engineering technique. 6+4=10
7. Write accounts of any two of the following: 5+5=10
Prenatal sex determination
Lytic cycle of a bacteriophage
Teratogenesis
Genetical basis of mental disorders
Other Question Papers
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- Animal Diversity-I
- Cell Biology
- Developmental Biology
- Ecology
- Electric & Magnetic Phenomena
- Genetics
- Mathematical Methods in Physics-I
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- Optics
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