Advertisements
Advertisements
प्रश्न
Lysine and tryptophan are ______.
विकल्प
proteins
non-essential amino acids
essential amino acids
aromatic amino acids
Advertisements
उत्तर
Lysine and tryptophan are essential amino acids.
APPEARS IN
संबंधित प्रश्न
Identify ‘a’, ‘b’ and ‘c’ in the following table:
| S. No. | Crop | Variety | Insect Pests |
| 1. | Brassica | Pusa Gaurav | ‘a’ |
| 2. | Flat bean | Pusa Sem 2 Pusa sem 3 |
‘b’ |
| 3. | ‘c’ | Pusa Sawani Pusa A-4 |
Shoot and fruit borer |
In Brassica (rapeseed, mustard)........................ varietys is resistant to Aphids.
(a) Pusa A-4
(b) Pusa Gaurav
(c) Pusa Sawni
(d) . Pusa Shubra
With the help of suitable diagram define 'bagging' and 'tagging' of flower.
Definition and importance of Imbibition
Answer each question in ‘One’ sentence only:
Define stock and scion.
Give a reason for the following:
Bagging is essential in artificial hybridisation.
Answer the following question.
How did plant breeding techniques help north Indian farmers to develop cane with desired characters?
While studying the history of the domestication of various cultivated plants _______ were recognized earlier.
Plants having similar genotypes produced by plant breeding are called
Crosses between the plants of the same variety are called
Give any four advantages of mutation breeding.
Breeding of crops with high levels of minerals:
Mutations in plant cells can be induced by ______
Several South Indian states raise 2-3 crops of rice annually. The agronomic feature that makes this possible is because of ______.
It is said, that diseases are spreading faster due to globalisation and increased movement of people. Justify the statement taking the example of H5N1 virus.
Define the term ‘stress’ for plants. Discuss briefly the two types of stress encountered by plants.
Discuss natural selection and artificial selection. What are the implications of the latter on the process of evolution?
What are A, B in the following table:
| Transgenic Crop | Substance | Transgene | |
| (i) | A | Flavonoids | Chalone isomerase |
| (ii) | Rice | B | Ferritin |
