CYCLIC EXAMINATION
CLASS XII BIOLOGY
MAX. MARKS: 40 TIME: 1.5 HRS
NAME____________ CLASS_____SECTION__________ ROLL NO.
This paper comprises of two Parts- I and II. Answer all Questions.
PART I (12 Marks)
Q.1 (a) Answer the following as per instructions (Attempt all questions) : [8x1]
i)Give TWO best methods of birth control.
ii)What are the practical applications of Mendel’s Laws.
iii)Expand ART and MTP.
iv)State Central Dogma of Genetics.
v)Enumerate the reasons for Morgan’s success in his experiments with Drosophila.
vi)Mention one significant difference between co-dominance and incomplete
dominance.
vii)What is the basis of chromosome mapping?
viii)Name any TWO Mendelian disorders in humans.
(b) Give the important contribution of the following: [4x 0.5]
i) Nirenberg and Khorana ii) Temin and Baltimore
iii)Sturtevant vi) Morgan, Correns and Tschermak
d) Give reasons for the following: [1]
Genetic Code is characterized as degenerate.
e)Multiple choice question. Choose the best option: [1]
The assisted reproductive technology in which sperm is directly
injected into ovum is called :
I. GIFT II. ICSI
III. ZIFT IV. ET
CLASS XII BIOLOGY
MAX. MARKS: 40 TIME: 1.5 HRS
NAME____________ CLASS_____SECTION__________ ROLL NO.
This paper comprises of two Parts- I and II. Answer all Questions.
PART I (12 Marks)
Q.1 (a) Answer the following as per instructions (Attempt all questions) : [8x1]
i)Give TWO best methods of birth control.
ii)What are the practical applications of Mendel’s Laws.
iii)Expand ART and MTP.
iv)State Central Dogma of Genetics.
v)Enumerate the reasons for Morgan’s success in his experiments with Drosophila.
vi)Mention one significant difference between co-dominance and incomplete
dominance.
vii)What is the basis of chromosome mapping?
viii)Name any TWO Mendelian disorders in humans.
(b) Give the important contribution of the following: [4x 0.5]
i) Nirenberg and Khorana ii) Temin and Baltimore
iii)Sturtevant vi) Morgan, Correns and Tschermak
d) Give reasons for the following: [1]
Genetic Code is characterized as degenerate.
e)Multiple choice question. Choose the best option: [1]
The assisted reproductive technology in which sperm is directly
injected into ovum is called :
I. GIFT II. ICSI
III. ZIFT IV. ET
