Login


pls ans
pls ans 16. All banana plants are reproduced asexually. Biologists are concerned for their future, as new strain of fungus has appeared which is killing all the banana plants in some Plantations. l. Explain why the fungus is able to kill all banana plants in some plantations 2. Explain why this would be less likely to happen if banana plants reproduce sexually 3. Describe the benefit of producing banana plants asexually.

Dear student.

Please find the solution below.

1. As in case of asexual reproduction, only one parent is involved, there will be no genetic variation. Less variation leads to less adaptability, so when a fungus infects, it will be able to kill all banana plants as genetic constituent will be same in all the plants.

2. In case of sexual reproduction two parents are involved so more chances of genetic variation which will lead to better adaptation when the environment is not stable. Due to recombination and crossing over, sexual reproduction brings about variations in species. Variations are essential for individuality and evolution of species.

3. The greatest advantage is that a plant biotype can be retained and multiplied in deficiency without any change or variation. This method helps to produce a number of plants in a shorter period of time.

Regards.

  • 1
View Full Answer
1. Since the banana reproduce asexually, their genetic makeup remains the same. Therefore, a fungus which can infect one banana can infect all the bananas in the same way and thus can destroy some plantation having same genetic makeup.
2. If the banana plants would have reproduced sexually then the genetic makeup of all the plants would differ. In this case, a fungus which infect one plant could not infect other plants by the same method as other plants would have different genetic makeup and thus different defence systems. Thus enabling other plants to survive.
3. Asexual reproduction is fast and it also gives us uniform crop.

Hope this helps :)
  • 0
What are you looking for?