DEVELOPMENTAL BIOLOGY PRACTICAL

Paper Code: 
24CZOL512
Credits: 
2
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 
Course objectives:  This course will enable the students to –
1. Analyze frog developmental stages on permanent slides, including cleavage, blastula, gastrula, neurula, and tadpole stages.
2. Examine metamorphic changes during the transition of tadpoles into frogs.
3. Investigate developmental stages of chick embryos through window preparation and study placenta sections to understand its structure and function.
 
Course Outcomes: 

Course

Learning outcomes

(at course level)

Learning and 

teaching strategies

Assessment

Strategies

 Course Code

Course Title

24 CZOL 512

Practical

The students will be able to

CO:103 Analyze frog developmental stages on permanent slides, including cleavage, blastula, gastrula, neurula, and tadpole stages.

CO:104 Examine metamorphic changes during metamorphosis of tadpoles into frogs.Investigate developmental stages of chick embryo through window preparation.

CO:105 Study placenta sections to understand its structure and function.

CO:106 Prepare a project report summarizing observations on chick embryo development.

CO:107 Demonstrate skills and record the concepts in the form of  practical file and reflect on personal learning experiences and experimental outcomes during viva voce.

CO:108 Contribute effectively in course-specific interaction

The approach in  teaching:

Demonstration,

Lectures,  Discussion, 

Tutorials, Reading  assignments, 

Team teaching

 

Learning activities  for the students:

Self-learning 

assignments, 

Effective questions,  Simulation, Seminar  presentation, Giving  tasks, Chart 

preparation

Assessment 

Strategies

Semester end  examinations,  Solving  problems in 

tutorials,  Presentation.

 

1. Study of whole mounts and sections of developmental stages of frog through permanent  slides: Cleavage stages, blastula, gastrula, neurula, tail-bud stage , tadpole (external and  internal gill stages) 
2. Study of whole mounts of developmental stages of chick through permanent slides:  Primitive streak (13 and 18 hours), 21, 24, 28, 33, 36, 48, 72, and 96 hours of incubation (Hamilton and Hamburger stages) 
3. Window preparation and blastoderm mounting in chick 
4. Study of different sections of placenta (photomicrograph/ slides) 
5. Project report on chick embryo development 
 

SCHEME FOR PRACTICAL EXAMINATION:

Scheme for CA  End Practical Examination

Exercise  1

Exercise II

File

Viva

Attendance

Total

 

 

5

 

 

5

 

10

 

5

 

5

 

30

 

Scheme for Semester End Practical Examination

Exercise I

Exercise II

Exercise III

Exercise IV

Spotting

File

Viva

Total

8

8

8

8

6x3=18

10

10

70

 

Essential Readings: 
ESSENTIAL READINGS: 
● A manual of Zoology Part I and II Ekambarnath Ayyar and Ananthakrishnan. Viswanathan Pvt. Ltd, Madras.
● Practical Zoology, Vertebrates, Lal, S.S. Rastogi Publications, Merrut. 
● Carlson, R. F. Patten's Foundations of Embryology. 
 
SUGGESTED READINGS: 
● Biology of Animals. C.P. Hickmann, L.S. Roberts and A. Larson. McGraw Hill  Company, New York. 
● Practical Zoology, Jacob, D., Bhatia,A.L., Kohli,K.S., Vyas,D.K. Ramesh Book Depot, New Delhi. 
● A manual of practical zoology: chordates.P.S.Verma. S Chand publishers. 
e-RESOURCES: 
0baffalo.html 
 
JOURNAL: 
● Journal of Developmental Biology 
● International Journal of Developmental Biology
 
Academic Year: