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IGNOU LSE-06
- Developmental Biology,
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(January 2024 - December 2024)

LSE-06 Assignment

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IGNOU LSE-06 January 2024 - December 2024 - Solved Assignment

Are you looking to download a PDF soft copy of the Solved Assignment LSE-06 - Developmental Biology? Then GullyBaba is the right place for you. We have the Assignment available in English language.

This particular Assignment references the syllabus chosen for the subject of Life Science, for the January 2024 - December 2024 session. The code for the assignment is LSE-06 and it is often used by students who are enrolled in the B.Sc. Degree.

Once students have paid for the Assignment, they can Instantly Download to their PC, Laptop or Mobile Devices in soft copy as a PDF format. After studying the contents of this Assignment, students will have a better grasp of the subject and will be able to prepare for their upcoming tests.

IGNOU LSE-06 (January 2024 - December 2024) Assignment Questions

Part-I (Plant Developmental Biology)

1. Define megasporogenesis. Why is it considered important for the sexually reproducing plants?

2. Differentate between gametophytic and sporophytic incompatibility.

3. What is vivipary? How does it help the mangrove species to survive in their saline/estuarine habitat?

4. Define dormancy. What is the importance of seed coat in contracting dormancy?

5. Write short note on the following:

a) Parthenocarpy
b) Cellular Totipotency
c) Senescence of Chloroplasts
d) Techniques of Plant Tissue Culture

Part-II (Animal Developmental)

6. Describe the following briefly:

i) Fate of CFU-M, L stem cells in mammals
ii) Test of genomic equivalence
iii) Role of morphogenetic field in development of eye
iv) Role of prothoracic gland in insect metamorphosis

7. Answer the following briefly:

i) List out the different germ layers present in the gastrula.
ii) Name the three zones from the outer to the inner side of neural retina.
iii) List the secondary egg envelopes in chick.
iv) What is blastema? What is its role in the regeneration of the limb in urodele (salamander)?
v) How does the Rubella virus infection in a 4-5 weeks pregnant woman affect the unborn baby?

8. Describe the following briefly:

i) Allometric and isometric growth
ii) Totipotency and pluripotency
iii) Holoblastic and meroblastic cleavage
iv) Morphollaxis and epimorphosis

9. Explain with neat, labelled diagrams the following:

i) Stages in vertebrate spermatogenesis
ii) Circulatory system changes during human development from foetal to infant stage
iii) Incomplete extensive metamorphosis in dragon files
iv) The process of cell death in the control of pattern formation of limbs

IGNOU LSE-06 (January 2023 - December 2023) Assignment Questions

Part-I (Plant Developmental Biology) 

1. Differentiate between: 

(i) Heartwood and sapwood
(ii) Composite and ruminate endosperm
(iii) Recurrent and non-recurrrent apomixis
(iv) Amoeboid and secretory tapetum

2. (a) What is apical dominance? Discuss the role of chemical factors in controlling it.
(b) Define polyembryony and describe its various types. 

3. Make well labelled diagrams of the following: 

(i) Types of ovules
(ii) Secondary growth in dicot stem
(iii) Syngamy and triple fusion
(iv) Structure of periderm

4. (a) What are cambial variants? Describe some of them with examples.
(b) Describe the major applications of plant tissue and organ culture. (5) (5) 

5. Write short notes on the following: 

(i) Cellular totipotency
(ii) Commercial cork
(iii) Physiological effects of two naturally occurring plant growth regulators (PGRs)
(iv) Parthenocarpy 

Part-II (Animal Developmental) 

6. (a) What are the major differences in the development and differentiation of an egg and a sperm?
(b) Define the following terms: 

(i) Morphogenetic movements
(ii) Epiblast 

7. Discuss the differentiation of an erythrocyte from a pluripotent CFU-S cell.

8. Discuss the process of mesoderm induction in amphibian embryos. 

9. What is neoteny? Briefly discuss neoteny in different species of urodeles. What is the significance of neoteny in evolutionary process?

10. Write short notes on: 

(i) Interstitial cells of Hydra
(ii) Neoblasts of Planaria

11. Explain that cancer is a multicausal and multistep process.

12. How is the placenta formed? What are its functions?

LSE-06 Assignment Details

  • University IGNOU (Indira Gandhi National Open University)
  • Title Developmental Biology
  • Language(s) English
  • Session January 2024 - December 2024
  • Code LSE-06
  • Subject Life Science
  • Degree(s) B.Sc.
  • Course Core Courses (CC)
  • Author Gullybaba.com Panel
  • Publisher Gullybaba Publishing House Pvt. Ltd.

Assignment Submission End Date

The IGNOU open learning format requires students to submit study Assignments. Here is the final end date of the submission of this particular assignment according to the university calendar.

  • 30th April (if Enrolled in the June Exams)
  • 31st October (if Enrolled in the December Exams).

Download Files & Sessions Details

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English Language

  • January 2024 - December 2024 22 Pages (0.00 ), PDF Format SKU: IGNGB-AS-BS-LSE06-EN-416
  • January 2023 - December 2023 26 Pages (0.00 ), PDF Format SKU: IGNGB-AS-BS-LSE06-EN-275

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  • All Solved Answers By IGNOU Experts.
  • Available for 3 Times for Download.
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  • Print Ready Format: A4 (21 x 29 x .20 cm (Width x Length x Height)

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