In plant breeding, the process typically involves several structured steps to ensure the development of new plant varieties with improved traits. The correct sequence of steps is as follows:
Given the options, the correct sequence is:
(B) Creation of variation
(A) Selection of superior variants
(D) Evaluation of variants
(C) Multiplication and distribution
Therefore, the correct answer is: (B), (A), (D), (C)
The correct answer is (3) (B), (D), (A), (C).
Here’s the correct sequence of steps in plant breeding:
(B) Creation of variation: The first step in plant breeding is to create genetic variation, which can be done through various methods like cross-breeding, mutation, or introducing new genetic material.
(D) Evaluation of variants: Once the variation is created, the next step is to evaluate the new variants for desirable traits, such as resistance to disease, improved yield, or better nutritional content.
(A) Selection of superior variants: After evaluating the variants, the superior ones that show the most beneficial traits are selected for further breeding.
(C) Multiplication and distribution: Finally, the selected superior variants are multiplied and distributed to farmers or growers for cultivation on a larger scale.
Thus, the correct sequence is (B), (D), (A), (C). Therefore, the correct answer is (3) (B), (D), (A), (C).
| LIST I Weed type | List II Meaning | ||
| A | Annual weed | I | They occur almost at any time of the year |
| B | Biennial weed | II | They require more than two years to complete |
| C | Perennial weed | III | They live for two seasons |
| D | Multi season weed | IV | They grow, mature within a season |
Select the statements that are CORRECT regarding patterns of biodiversity.
Which of the following hormone is not produced by placenta ?
List - I | List - II | ||
| A | Streptokinase | I | Blood-Cholestrol lowering agents |
| B | Cyclosporin | II | Clot Buster |
| C | Statins | III | Propionibacterium sharmanii |
| D | Swiss Cheese | IV | Immuno suppressive agent |
Which of the following option determines percolation and water holding capacity of soils ?