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प्रश्न
What is Genetic variations?
उत्तर
Genetic variations are caused due to various aspects of mutation, recombination, and migration. The change in gene and gene frequencies is known as genetic variation.
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संबंधित प्रश्न
State the following:
Theory of recapitulation
From the visible spectrum of light, which component is reflected by the given leaves?
How would the gene flow or genetic drift affect the population in which either of them happens to take place?
Long answer question.
Explain the different factors responsible for genetic variations.
The total genetic information encoded in sum total of genes in a Mendelian population is called ______.
______ changes the genes rearrangement (order or sequence) resulting in variation.
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 |
Physical isolation is also called ______.
Domestic wheat, which has 42 chromosomes, is probably hexaploid (6n), whereas the haploid number in the ancestral ones was 7. Find out the right reason as to how are such plants produced?
Mention the name of a sterile animal produced by intergeneric hybridisation.
