Q. No.Resistance to the yellow mosaic virus in bhindi (Abelmoschus Esculentus) was possible by:
1.
Conventional hybridization
2.
Mutations
3.
Genetic engineering
4.
Tissue culture
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Breeding crops with higher levels of vitamins and minerals, or higher protein and healthier fats is called:
| 1. | Bioremediation | 2. | Biofortification |
| 3. | Food adulteration | 4. | Biomagnification |
Any part of a plant taken out and grown in a test tube under sterile conditions in special nutrient media for generating new plants is called:
| 1. | Implant | 2. | Explant |
| 3. | Supplant | 4. | Plantlet |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The management of animals for milk and its products for human consumption is called:
| 1. | Animal breeding | 2. | Dairying |
| 3. | Domestication | 4. | Animal husbandry |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Consider the following statements regarding inbreeding in animal husbandry:
| I. | Inbreeding refers to the mating of more closely related individuals within the same breed for 4-6 generations. |
| II. | Inbreeding increases homozygosity and is necessary if we want to evolve a pure line in any animal. |
| III. | Inbreeding exposes harmful recessive genes that are eliminated by selection and helps in the accumulation of superior genes. |
| IV. | Continued inbreeding usually reduces fertility and even productivity, called inbreeding depression, which can be overcome by mating selected animals of the breeding population with unrelated superior animals of the same breed. |
The correct statements are:
| 1. | I, II and III only | 2. | II, III and IV only |
| 3. | I, II and IV only | 4. | I, II, III and IV |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
There are several species of honeybees that can be reared. From the options given below identify the species reared in India:
| 1. | Apisindica | 2. | Apisdorsata |
| 3. | Trigonairidipennis | 4. | Apismellifera |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Classical plant breeding involves:
| 1. | Crossing or hybridization of pure lines and hardening |
| 2. | Crossing or hybridization of wild varieties and artificial selection |
| 3. | Crossing or hybridization of wild varieties and inbreeding |
| 4. | Crossing or hybridization of pure lines and artificial selection |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Identify the variety of sugarcane from which [with hybrids] about 70% of the sugar produced worldwide comes:
| 1. | Saccharumbarberi | 2. | Saccharumsinense |
| 3. | Saccharumofficinarum | 4. | Saccharumspontaneum |
Insect resistance in host crop plants may be due to morphological, biochemical, or physiological characteristics. Identify the correct statements:
| I: | Hairy leaves in several plants are associated with resistance to jassids in cotton and cereal leaf beetle in wheat. |
| II: | In wheat, solid stems lead to non-preference by the stem sawfly and smooth-leaved and nectar-less cotton varieties do not attract bollworms. |
| III. | High aspartic acid, low nitrogen and sugar content in maize lead to resistance to maize stem borers. |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Match biofortified crops in Column I with enriched nutrients in Column II and select the correct answer from the codes given:
|
|
Column I |
|
Column II |
|
A. |
Maize hybrids |
a. |
lysine and tryptophan |
|
B. |
Atlas 66 |
b. |
high protein content |
|
C. |
Golden rice |
c. |
Vitamin A |
Code
| A | B | C | |
| 1. | a | b | c |
| 2. | a | c | b |
| 3. | b | a | c |
| 4. | c | a | b |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
© 2024 GoodEd Technologies Pvt. Ltd.