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Byju's Answer

Standard XII

Biology

Artificial Hybridisation

Find the corr...

Question

Find the correct match
I II
(a) Use of bisexual flowers as female flowers i. Clonal selection
(b) Incorporation of several desirable characters into a single variety ii. Pure line selection
(c) Exploiting hybrid vigour for several generations iii. Emasculation
(d) Improving local varieties of self pollinated plants iv. Hybridisation
v. Polyploidy breeding

a-iv, b-v, c-iii, d-i

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a-ii, b-iii, c-iv, d-v

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a-iii, b-iv, c-i, d-ii

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a-i, b-v, c-ii, d-iv

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Solution

The correct option is C a-iii, b-iv, c-i, d-ii
So the correct option is 'a-iii, b-iv, c-i, d-ii'
I II
A)Use of bisexual flowers as female
flowers Emasculation
(The process in which the anther of the flower is removed)

B)Incorporation of several desirable characters into a single variety Hybridization (The process in which the introduction of several desired genes is carried out by genetic engineering).
C)Exploiting hybrid vigor for several generations Clonal Selection(used for asexual reproduction of plants)
D)Improving local varieties of self-pollinated plants Pure line selection (used to keep certain characters throughout generations)

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Similar questions

Question 5
Find out the correct sentence

(i) Hybridization means crossing between genetically dissimilar plants
(ii) Cross between two varieties is called as interspecific hybridization
(iii) Introducing genes of the desired character into a plant gives a genetically modified crop
(iv) Cross between plants of two species is called as inter varietal hybridisation

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

Q. Match the column I with column II:

Column I Column II
(Variety) (Plant)
a. Jaya (i) Wheat
b. Himgiri (ii) Mustard
c. Pusa Sawani (iii) Rice
d. Pusa Swarnim (iv) Okra (Lady finger)

Q. Which of the following statements are true for flowers?
(i) flowers are always bisexual
(ii) they contain sexual reproductive organs
(iii) they are produced in all groups of plants
(iv) after fertilisation they give rise to fruits

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

Q. Match the items in column I to those in column II to find the correct set of answers.

Column I	Column II
(A) flower	(i) can grow without seeds
(B) potato	(ii) contains many seeds
(C) mango	(iii) grows into fruit
(D) pea	(iv) contains one seed

(a) A- iii; B- i; C- iv; D- ii
(b) A- i; B- iii; C- iv; D- ii
(c) A- iii; B- i; C- ii; D- iv
(d) A- iv; B- ii; C- iv; D- i

Tick (√ ) the correct answer:

(a) The reproductive part of a plant is the

(i) leaf

(ii) stem

(iii) root

(iv) flower

(b) The process of fusion of the male and female gametes is called

(i) fertilisation

(ii) pollination

(iii) reproduction

(iv) seed formation

(i) seed

(ii) stamen

(iii) pistil

(iv) fruit

(d) A spore producing plant is

(i) rose

(ii) bread mould

(iii) potato

(iv) ginger

(e) Bryophyllum can reproduce by its

(i) stem

(ii) leaves

(iii) roots

(iv) flower

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	I		II
(a)	Use of bisexual flowers as female flowers	i.	Clonal selection
(b)	Incorporation of several desirable characters into a single variety	ii.	Pure line selection
(c)	Exploiting hybrid vigour for several generations	iii.	Emasculation
(d)	Improving local varieties of self pollinated plants	iv.	Hybridisation
		v.	Polyploidy breeding

I	II
A)Use of bisexual flowers as female flowers	Emasculation (The process in which the anther of the flower is removed)
B)Incorporation of several desirable characters into a single variety	Hybridization (The process in which the introduction of several desired genes is carried out by genetic engineering).
C)Exploiting hybrid vigor for several generations	Clonal Selection(used for asexual reproduction of plants)
D)Improving local varieties of self-pollinated plants	Pure line selection (used to keep certain characters throughout generations)