Description
Bachelor’s Degree Programme
(BSCG)
BZYCT-133 : COMPARATIVE ANATOMY AND DEVELOPMENTAL BIOLOGY
OF VERTEBRATES)
Valid from 1st January, 2025 to 31st December, 2025
ASSIGNMENT
(Tutor Marked Assignment)
Course Code: BZYCT-133
Assignment Code: BZYCT-133/TMA/2025
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
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Explain keratinization in terrestrial vertebrates.
Give five features that you can use to distinguish between the skulls of
frog and rabbit.
Explain the major differences between reptilian and avian digestive
systems.
Describe the structure of the respiratory system of cartilaginous fishes and
state how does it differ from that of bony fishes.
Discuss lymphatic system in different vertebrates.
Write short notes on:
i)
Blood filteration in kidney
ii)
Types of mammalian uteri
Which part of the brain is well developed in all vertebrates and why?
What are pit organs in reptiles? How do vipers and boas locate prey?
Briefly write the functions of the following hormones secreted in mammals.
a)
Adrenocorticotropic hormone
b)
c)
d)
e)
Parathormone
Aldosterone
Testosterone
Progesterone
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.
Describe the mechanisms evolved by eggs to prevent polyspermy.
Make a flow chart to show the events in metamorphosis.
Discuss the process of development of extra embryonic membranes in chick.
a)
b)
Draw a flow chart to show how the three germinal layers are derived from
the zygote.
How do genetic and environmental defects cause problems in embryonic
development?
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