Advertisements
Advertisements
प्रश्न
Write short note on Gene pool.
टीपा लिहा
Advertisements
उत्तर
- The total genetic information encoded in sum total of genes in a Mendelian population is called gene pool.
- Simply, gene pool means the total number of genes of all individuals in a population.
- It contains both expressed genes and non-expressed genes.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Define the term gene flow.
Match the following:
| Column- I | Column- II |
| 1. August Weismann | a. Mutation theory |
| 2. Hugo de vries | b. Germplasm theory |
| 3. Charl Darwin | c. Theory of acquired characters |
| 4. Lamark | d. Theory of natural selection |
Long answer question.
By taking industrial melanism as one example. Explain the concept of natural selection.
Identify the INCORRECT statement.
Which of the following is TRUE for genetic drift?
Match the columns and choose the correct option.
| Column I | Column II | ||
| i. | Zygote mortality | a. | Hybrid develops to maturity but becomes sterile |
| ii. | Hybrid sterility | b. | Egg is fertilized but zygote dies |
| iii. | Gamete mortality | c. | Union of two gametes does not occur in the iven time |
Chromosomal aberration causing no loss or gain of gene complement of the chromosome is called ____________.
Which statements are TRUE regarding genetic recombination?
- It occurs in asexually and sexually reproducing organisms.
- They occur due to random union of gametes, anaphasic separation of chromosomes, and crossing over.
- New genetic combinations result in variation.
Natural selection of black winged moth (Biston carbonaria) over white winged moth (Biston betularia) occurred due to ____________.
Define the term:
Genetic drift
