BZYCT-133 EM 2026 SOLVED ASSIGNMENT

Description

Bachelor’s Degree Programme (BSCG0
(COMPARATIVE ANATOMY AND DEVELOPMENTAL
BIOLOGY OF VERTEBRATES)
Valid from 1st January, 2026 to 31st December, 2026

ASSIGNMENT (Tutor Marked Assignment)

Course Code: BZYCT-133

Assignment Code: BZYCT-133/TMA/2026

Maximum Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it.

1.. i) List the primary divisions of the nervous system and their subdivisions.

ii) List the cranial nerves of special senses and the nerves that innervate the eye muscles.

2.Describe specialised sensory organs of vertebrates and relate their role to their habitat.

3.How is the respiratory system of birds modified to meet their high oxygen requirement? How is it different from the respiratory system of mammals?

4.Answer the following questions in short.

i) What are the three sets of paired veins present in the early embryonic stage of vertebrates?

ii) What are the veins in fishes that bring blood from the fins?

Iii) What is the fate of lateral abdominal veins in teleosts and lung fishes?

Iv) What are precaval veins?

V) Why are large cutaneous veins present in amphibians?

5.Briefly write the functions of the following hormones secreted in mammals.

a) Adrenocoricotropic hormone

b) Parathormone

c) Aldosterone

d) Testosterone

e) Progesterone

6.Explain the role of fate maps and patterns of development.

7.i) How would you define a ligand in cell-to cell signalling?

ii) What is the difference between juxtacrine and paracrine signalling?

iii) How is EMT used in the embryo and in the adult?

8.List at least three stages in gene expression that can be regulated to result in differentiated cell types? Explain any one of them with the help of an example.

9.Describe the process of neurulation in frog

10.Define the following terms:

i) Blastoderm

ii) Morphogenetic movements

iii) Fate maps

iv) Epiblast

v) Inner cell mass