Fisheries level-2; semester-2 FBG-204 [ Principles of Genetics] Quesion 2014-2018

 

 


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Fisheries level-2; semester-2 FBG-204 [ Principles of Genetics] Quesion 2014-2018

 

 L2 S2 [FISH]

 

 

 

 Hajes Mohammad Danesh Science and Technology University, Dinajpur B.Sc. Fisheries (Hons) Level 2 Semester II (July-December 2014) Course Title: Principles of Genetics Course Code: FBG 204 Credit Hours: 3.0 Full marks: 90.0

Time: 3.6 hour

Split answering of any question is unacceptable

Use separate answer script for answering each of the sections.

SECTION-A

Answer any five (05) questions

5x9-45.0

1) Definu genetics and heredity.

2.0

(b) Briefly describe the branches of genetics. (n) How can knowledge of genetics contribute to the aquaculture of Bangladesh?

4.0

3.0

2.0

3.0

2.

(a) What are meant by monohybrid cross and dihybrid cross?

(b) State the "Mendel's laws of Inheritance". (c) Briefly discuss the "Mendel's law of segregation" with an example.

4.0

20

3.

4.0

(s) Distinguish mitosis from meiosis. 16) Diagrammatically show the melosis cell division.

fo) Mention the genetic significance of mitosis and meiosis.

3.0

3.0

4

(a) Define sex-linked, sex influenced and sex limited inheritance

(b) Explain Y-linked gene inheritance in fishes.

6.0

3.0

SNAY What are meant by mutation, mutant, and mutagen?

(b) Describe mutation at molecular level.

6.0

2.0

2.0

(a) What do you mean by chromosome?

(by State the chromosome theory of inheritance. (c) Classify chromosome on the basis of position of centromere, essentiality and

role in sex determination.

5.0

3×3- 9.0

Write short notes (any three): Historical background of genetics

(b) Gregor Johan Mendel

(0) Sex determination system

(d) DNA double helix