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Check your score! If your score is
> 90% ExcELLEnT wOrk! You are well prepared to take the challenge of final exam.
90-75%^ GOOD wOrk!^ You can score good in the final exam.
74-60% sATIsfAcTOrY! You need to score more next time.
< 60% nOT sATIsfAcTOrY! Revise thoroughly and strengthen your concepts.
No. of questions attempted ......
No. of questions correct ......
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- Identify the correct statement.
(a) Morphallaxis is the regeneration of a lost body part.
(b) Gemmules in fresh water sponges forms new colony.
(c) In a pollen grain, exine is pecto-cellulosic in nature.
(d) Polygonum type of embryo-sac contains 9 nuclei and 8
cells.
- Fusion of two organisms that themselves act as gametes is
called
(a) endogamy (b) conjugation
(c) oogamy (d) hologamy.
- Match column I with column II and select the correct option.
Column I Column II
A. Bud grafting (p) Pineapple
B. Stimulative parthenocarpy (q) Pear
C. Trench layering (r) Apple
D. Vegetative parthenocarpy (s) Grapes
E. Bulbils (t) Walnut
(a) A-r, B-s, C-t, D-q, E-p (b) A-s, B-p, C-r, D-q, E-t
(c) A-q, B-p, C-s, D-t, E-r (d) A-t, B-q, C-p, D-s, E-r
- The seeds may become non-viable due to
(i) denaturation of enzymes
(ii) premature RNA exhaustion
(iii) damage to embryo
(iv) excessive dry weather.
(a) (i) and (iii) only (b) (i), (ii) and (iv) only
(c) (ii) and (iii) only (d) All of these
- Which of the following is not an event that occurs during
double fertilisation?
(a) A diploid zygote is formed from the fusion of male and
female gamete.
(b) A triploid endosperm is formed after vegetative
fertilisation.
(c) Formation of nutritive tissue starts before the embryo
formation.
(d) Growth of female gametophyte stops at 7-celled or
8-nucleate stage.
- Ornithophilous flowers are usually
(a) bright, secrete abundant nectar and scent is absent
(b) dull coloured, have strong fruity odour and secrete
abundant nectar
(c) bright, secrete abundant nectar and strongly scented
(d) dull coloured, odourless and secrete abundant nectar.
- Which of the following pairs are monocarpic plants?
(a) Strobilanthus, Grape vine
(b) Rice, China rose
(c) Bambusa, Orange
(d) Carrot, Wheat
- Read the given statements and select the correct option.
Statement 1 : In Salvia, a lever-mechanism promotes
cross pollination.
Statement 2 : Salvia has protandrous and anemophilous
flowers.
(a) Both statements 1 and 2 are true and statement 2 is
the correct explanation of statement 1.
(b) Both statements 1 and 2 are true but statement 2 is
not the correct explanation of statement 1.
(c) Statement 1 is true but statement 2 is false.
(d) Both statements 1 and 2 are false.
- Refer to the given table about transformation of flower parts
and select the option that correctly fills the blanks in it.
Pre-fertilisation Post-fertilisation
Micropyle of ovule A
B Pericarp
Outer integument C
Nucellus D
A B C D
(a) Perisperm Ovary wall Perisperm Tegmen
(b) Micropyle of Ovule Perisperm Disappear
seed
(c) Micropyle of Ovary wall Testa Perisperm
seed
(d) Thalamus Ovule Testa Disappear
- If the numbers of chromosomes in the aleurone layer
of a seed is 60, what must have been the number of
chromosomes present in megaspore mother cell?
(a) 30 (b) 20
(c) 10 (d) 40
