Download PTU B.Sc-BT 2020 March 6th Sem 47073 Plant Biology Question Paper

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Roll No. Total No. of Pages : 02

Total No. of Questions : 09

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B.Sc.(BT) (2014 to 2017) (Sem.-6)

PLANT BIOLOGY

Subject Code : BSBT-304

M.Code : 47073

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTION TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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Q1. Define :

1. Induced mutations
2. Cryopreservation
3. Embryo Rescue
4. Somaclonal Variations

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5. Agar cultures
6. Cryoprotectants
7. Anther culture
8. Germplasm
9. Micropropagation

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10. Callus

SECTION-B

Q2. Discuss the somatic embryo genesis and its advantages.

Q3. What are virus free plants?

Q4. What are artificial seeds? What are their advantages?

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Q5. Write about the homozygous lines.

Q6. How adventitious buds are induced?

SECTION-C

Q7. Describe large scale culture and the problems associated with large scale Culture of plant cells.

Q8. Define Virus Indexing. How virus free stocks are maintained. Give their applications and limitations.

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Q9. What do you know about the following :

1. Recovery of interspecific hybrids.
2. Analytical breeding and production of only male population.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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