Page 2 - 3.Home_assignment_(Obj_& Subj) Asexual_Reproduction_1

(iv) Amoeba
(a) (ii) and (iv)
(b) (i), (iii) and (iv)
(c) (i) and (iv)
(d) (ii), (iii) and (iv)

Q.7 Offspring formed as a result of sexual reproduction exhibit more variation because-
(a) Sexual reproduction is a lengthy process
(b) Genetic material comes from two parents of the same species
(c) Genetic material comes from two parents of different species
(d) Genetic material comes from many parents

Q.8 In Spirogyra, asexual reproduction takes place by -
(a) Breaking up of filaments into smaller bits
(b) Division of a cell into two cells
(c) Division of a cell into many cells
(d) Formation of young cells from older cells

Q.9 During favourable conditions, Amoeba reproduces by -
(a) multiple fission
(b) binary fission
(c) budding
(d) fragmentation

Q.10 In the process of binary fission -
(a) Cytoplasm divides first followed by division of nucleus
(b) Nucleus divides first followed by division of Cytoplasm
(c) Both nucleus and cytoplasm divide simultaneously
(d) Cell protrudes followed by division of Nucleus.

Subjective

Q. Questions Mark Level
NO
1. Why is DNA copying an essential part of the process of reproduction? 1 E
2. How does the binary fission of amoeba differ from that of 1 E
Leishmania?
3. (a) Mention about the four events that occur during binary fission in 3 Av
amoeba?
(b) Is parental identity is lost in binary fission of amoeba?
4. How does binary fission differ from multiple fission? 3 Av
5. What is fragmentation? How does fragmentation take place in 3 D
spirogyra?
6. (a) What is the importance of DNA copying in reproduction? 5 D
(b) Why is variation beneficial to the species but not necessary for the
individual?

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