Advertisements
Advertisements
प्रश्न
What is hybrid sterility?
Advertisements
उत्तर
Hybrids develop to maturity but become sterile due to failure of proper gametogenesis (meiosis). This is called hybrid sterility. e.g. Mule is an inter-generic hybrid that is sterile.
APPEARS IN
संबंधित प्रश्न
How would the gene flow or genetic drift affect the population in which either of them happens to take place?
Short answer question.
Enlist the different factors that are responsible for changing gene frequency.
Long answer question.
Describe the different types of reproductive isolations.
The total genetic information encoded in sum total of genes in a Mendelian population is called ______.
Match the columns and choose the correct option.
| Column I | Column II | ||
| i. | Ecological isolation | a. | Sexually mature at different times of the year |
| ii. | Ethological isolation | b. | Specific mating behaviours |
| iii. | Mechanical isolation | c. | Difference in structure of mating organs |
| iv. | Seasonal isolation | d. | Same geographic region but separate habitat |
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.
____________ brings about evolutionary changes by favouring differential reproduction of genes.
Which animal was very conspicuously visible on the tree trunks after the industrial revolution (1845) in Great Britain?
Ethological isolation is due to differences in ______
Mention the name of a sterile animal produced by intergeneric hybridisation.
