Plant Breeding. - Tamil Nadu Board STD 12 BIO BOTANY Questions - Vidyadip

Question types

Plant Breeding. question types

64 questions across 4 question groups — pick any mix to generate a BIO BOTANY paper with step-by-step answer keys.

64

Questions

4

Question groups

5

Question types

Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.

[ 2 Marks Questions ]

[ 3 Marks Questions ]

[ 5 Marks Questions ]

Sample Questions

Plant Breeding. questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Luxuriance is the term used on par with ________

✓
Heterosis
B
Anthesis
C
Hybrids
D
Mutant breeds

Answer: A.

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Q 2Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Atomita 2 – rice is a product by.

A
Polyploid breeding
B
Hybridization
✓
Mutation breeding
D
Clonal selection

Answer: C.

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Q 3Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Identify the correct symbiotic association

A
Rhizobium × Corolloid roots
✓
Arbuscular Mycorrhizae × Angiospermic roots
C
Azolla × Amantia
D
Azospirillum × Azolla

Answer: B.

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Q 4Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Damping-off of tomato is controlled by ________

✓
Beauveria species
B
Trichoderma species
C
Acacia species
D
Pseudomonas species

Answer: A.

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Q 5Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Identify the incorrect statement:
(i) SLF is obtained from Kelps – a brown algae
(ii) Azolla is a fern
(iii) Rhizobium is found in association with root nodules
(iv) AM forms symbiotic relation with angiosperm roots

A
i only
B
ii, iii, and iv only
✓
none of the above
D
all the above

Answer: C.

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Q 6[ 2 Marks Questions ]2 Marks

A plant breeder developed hybrid sugarcane by grafting two different varieties with desirable characters. The resultant hybrid showed excellent growth and productivity with increased sucrose content compared to its parental forms.

What does this phenomenon refer to?
How this condition can be maintained through further generation?

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Q 7[ 2 Marks Questions ]2 Marks

Who am I?

Father of the Green Revolution.
Father of Indian Green Revolution.

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Q 8[ 2 Marks Questions ]2 Marks

Yesterday, Ramu visited his friend’s Orchard, wherein he noticed few flowers of certain guava trees are covered using thin paper bags.

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Q 9[ 2 Marks Questions ]2 Marks

Why plant Breeding is carried out by farmers and scientists?

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Q 10[ 2 Marks Questions ]2 Marks

State the objective of using green manuring.

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Q 11[ 3 Marks Questions ]3 Marks

Write a short note on autopolyploidy with an example.

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Q 12[ 3 Marks Questions ]3 Marks

Give an account on clonal selection.

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Q 13[ 3 Marks Questions ]3 Marks

Point out the objectives of plant breeding.

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Q 14[ 3 Marks Questions ]3 Marks

Write a note on Green manuring.

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Q 15[ 3 Marks Questions ]3 Marks

What makes the Trichoderma and effective bio-pesticide?

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Q 16[ 5 Marks Questions ]5 Marks

Explain the steps involved in hybridization.

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Q 17[ 5 Marks Questions ]5 Marks

Give a comparative account on Seaweed liquid fertilizer.

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