CSS past paper

CSS Zoology Past Paper 2021

CSS Zoology 2021 carries 100 marks over 3 hours. It has 7 questions.

Years

How to attempt: Attempt ONLY FOUR questions from PART-II. ALL questions carry EQUAL marks.

Question 1 (Part I) is the paper's MCQs, which are not reproduced here.

Q. 2
Explain X-linked inheritance with the description of hemophilia disease in humans.
(20)
Q. 3
Describe cellular processes that occur in various phases of cell cycle.
(20)
Q. 4
How the theory of evolution was incorporated into the science of Taxonomy?
(20)
Q. 5
Discuss the evidence that link hemichordate with chordate animals.
(20)
Q. 6
Discuss the integumentary system in invertebrates.
(20)
Q. 7
How evolution is reflected in body plans of animal kingdom?
(20)
Q. 8
Explain the action of hormones on membrane bound and nuclear receptors.
(20)

Part-II is to be attempted on the separate Answer Book.
Attempt ONLY FOUR questions from PART-II. ALL questions carry EQUAL marks.
All the parts (if any) of each Question must be attempted at one place instead of at different places.
Write Q. No. in the Answer Book in accordance with Q. No. in the Q.Paper.
No Page/Space be left blank between the answers. All the blank pages of Answer Book must be crossed.
Extra attempt of any question or any part of the question will not be considered.