Paper: Biology (Chapter
18 to 22) Total
Marks:
Time: 2nd
Year Marks
obtained: ___
Question no. 1: Encircle
the correct option. (17)
1. In
honey bees ___________ is present
A) Haploid parthenogenesis B) Haploid Parthenocarpy C) Diploid Parthenogenesis D) Diploid Parthenocarpy
2. An
example of egg laying mammal is ___________
A) Rat B) Horse C) Human D) Duck bill platypus
3. The
Epiblast of chick embryo is presumptive for _____________
A) Ectoderm B) Mesoderm C) Endoderm D) Both A & B
4. The
study of aging is called ____________
A) Teratology B) Gerontology C) Age Biology D) None of these
5. If
G is present 40% in DNA than what will be the ratio of A?
A) 20% B) 10% C) 60% D) 80%
6. New
stand of DNA proceeds in _________ direction with reference to Parental stand.
A) 3_5 B) 5_3 C) 3_3 D) 5_5
7. The stand on which RNA polymerase
moves is called ___________
A) Sense B) Antisence C) None of these D) Coding
8. In
Prokaryote Transcription occur in __________.
A) Nucleus B) Cytoplasm C) Nuclein D) None of these
9. If
Blood Group of father is A+ and Mother is B+ than the blood group of baby may
be__________
A) A+ B) B+ C) AB+ D) All of these
10. Which
of the following is pleiotropic trait?
A) Human Height B) Human Colour C) Human Intelligence D) All of these
11. Toung
rolling ability is due to single __________ gene.
A) Dominant B) Recessive C) Polygenic D) None of these
12. Bryophytes gametophyte gametes produced are genetically
A) Haploid B) Diploid C) Triploid D) None of these
13. Developing seeds are rich source of
________
A) Auxins B) Cytokinin C) Gibberellins D) All of these
14. Which
one is absent in animal cell.
A) Spindle B) Centriole C) Chromatids D) Pharagmoplast
15. Which
phase is shortest one?
A) G1 B) G2 C) S D) Mitosis
16. The
study of aging is called.
A) Taratology B) Gerontology C) Age biology D) None of these
17. Discoidal
cleavage present in:
A) Chick B) Parrot C) Sparrow D) All of these
Question No. 2: Give Brief
answers of the following: (Any twenty two)
(44)
1.
What are phytochromes?
2.
How Pregesterone produced during menstrual cycle?
3.
Define photoperiodism.
4.
Define Growth correlation.
5.
What is menopause?
6.
What is Area pellucida?
7.
What is discoidal cleavage?
8.
What is premitive streak?
9.
Differentiate between heterochromatin and
euchromatin.
10. Define
Neucleosome.
11. Differentiate
between Primer and Promotor.
12. What
is core Enzyme?
13. What
are point mutation? Give one example.
14. What
are Opsins?
15. Differentiate
between gene ane genome.
16. A
mother is heamophilic patient and father is too. Draw a flow chart to
demonstrate what will be the frequency of haemophilia in their children.
17. What is G0 phase of interphase?
18.
What do you know about metastasis?
19.
How does prophase of meiosis I differ
from mitosis?
20.
Sketch and label cell cycle.
21.
How apoptosis differs from necrosis.
22.
Define non-disjunction.
23.
What is lagging strand?
24.
What is phosphodiester linkage? Draw
its structure.
25.
Define transformation.
26.
Define Discoidal cleavage.
27.
28.Briefly describe Henson’s Node.
28.
Define neoblasts. What is their role?
29.
What is gerontology? What is its
major goal?
30.
Define placenta. What are its
functions?
31.
How mechanism of birth is triggered?
32.
What is role of sertoli cells in man?
33.
Draw different shapes of chromosomes.
Part Three
(Any Two)
Attempt any Three of the followings questions.
Question No. 3: A) Explain
Female reproductive system with drawing diagram?
B) Describe interphase of cell cycle. (4+4=8)
Question No. 4: A) Write a
note on cancer.
B) Give an
account of Epistasis. (4+4=8)
Question No. 5: A) Explain
experiment which proof semi conservative replication.
B) Write a note on neurulation. (4+4=8)
Question No. 6: A) Discuss the process of birth in human
female.
B) Discuss
the role of nucleus in development. (4+4=8)
Question No. 7: A) Explain genetics of color blindness.
B) Write a
note on aging. (4+4=8)
.
Practical Portion Attempt and three
Question No. 8: A) Write a procedure to explain the
process of phototropism. (3+2=5)
B) Differentiate
between positive phototropism and negative phototropism.
Question No. 9: A) Write a procedure to study internal
structure of hen’s egg and draw labeled diagram. (3+2=5)
B) Why is the egg shell
porous?
Question No. 10: A) Write a differential account of
sclerenchyma cells and collenchyma cells. (3+2=5)
B) What are
different types of sclerenchyma cells?
Question No. 11: A) Show histograms of continuous and
discontinuous variations of atleast one trait treat. (3+2=5)
B) Explain
tongue rolling as hereditary trait in man.
Question No. 12: A) Draw Metaphase I, Anaphase I,
Telophase I of meiosis I. (3+2=5)
B) What are
differences of mitosis and meiosis?
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