Pusa Shubhra, an improved variety of cauliflower, is resistant to:

1. White rust

2. Bacterial blight

3. Black rot

4. Leaf curl

Subtopic:  Breeding for Disease Resistance |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


To obtain a virus free plant, what can be used as an explant in micropropogation ?

1. Apical meristem

2. Axillary meristem

3. Either apical or axillary meristem

4. Embryo

Subtopic:  Plant Tissue Culture |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


In plants, somatic embryo regeneration is induced usually by a relatively high concentration of:

(1) Benzyl amino purine

(2) IAA

(3) 2,4 - D

(4) NAA

Subtopic:  Plant Tissue Culture |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Inbreeding depression in animals can be overcome by:

1. A single outcross

2. Out cross for many generations

3. Cross-breeding

4. Inter-specific hybridization

Subtopic:  Animal Husbandry |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Identify the incorrectly matched pair:

 

Crop Variety

Resistant to

1.

Himgiri

Leaf and stripe rust

2.

Karan rai

White rust

3.

Pusa sadabahar

Bacterial blight

4.

Pusa shubhra

Black rot

Subtopic:  Insect & Pest Resistance |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Meristem culture is especially important to obtain: 

(1) Drought resistant plants

(2) Virus free plants

(3) Biofortified plants

(4) Androgenic haploids

Subtopic:  Plant Tissue Culture |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Consider the following statements:

I. Hairy leaves are associated with resistance to jassids in cotton and cereal leaf beetle in wheat

II. Low aspartic acid, high nitrogen and sugar content in maize leads to resistance to maize stem borers.

III. In wheat, solid stems lead to non preference by the stem sawfly and smooth leaved and nectar-less varieties of cotton do not attract bollworms

Which of the above statements are true?

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

Subtopic:  Insect & Pest Resistance |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Match each item in Column I with one item in Column II and chose your answer from the codes given below:

Column I

Column II

I. Pusa Swarnim

II. Pusa Shubhra

III. Pusa Komal

IV. Pusa Sawani

1. Cauliflower

2. Brassica

3. Okra

4. Cow pea

 

Codes

             I           II         III         IV

(1)         1           2           3           4

(2)         2           1           4           3

(3)         2           1           3           4

(4)         1           2           4           3

Subtopic:  Breeding for Disease Resistance |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Which one is the wrong pairing for the disease and its causal organism?

(1) late blight of potato-Alternaria solani

(2) Black rust of wheat-Puccinia graminis

(3) Loose smut of wheat-Ustilago nuda

(4) Root-knot of vegetables-Meloidogyne sp.

Subtopic:  Breeding for Disease Resistance |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Consider the following four measures (A-D) that could be taken to successfully grow chick pea in an area where bacterial blight disease is common

(A) spray with Bordeaux mixture

(B) control of the insect vector of the disease pathogen

(C) use of only disease-free seeds

(D) use of varieties resistant to the disease

Which two of the above measures can control the disease?

(1) B and C

(2) A and B

(3) C and D

(4) B and D

Subtopic:  Breeding for Disease Resistance |
Please attempt this question first.

Difficulty Level: