1.How does binary fission differ from multiple fission?
2.How will an organism be benefited if it reproduces through spores?
3.Can you think of reasons why more complex organisms cannot give
rise to new individuals through regeneration?
4.Why is vegetative propagation practised for growing some types of
plants?
5.Why is DNA copying an essential part of the process of reproduction?
Answers
Answer:
1 Both binary fission and multiple fission are asexual reproduction and occur with the presence of only one parent. In binary fission, the parent cell divides itself into two equal and identical daughter cells. ... In multiple fission, a single parent cell is divided into many daughter cells.
2 Reproduction through spores gives several advantages to an organism. ... Spores can remain dormant till favourable conditions become
available. Spores help an organism to tide over the bad phase. Spores can be spread through water, air or animals and thus is good for the spread of an organism to more places.
3 Higher complex organisms cannot give rise to new individuals through regeneration because complex organisms have organ-system level of organization. All the organ systems of their body work together as an interconnected unit. They can regenerate their lost body parts such as skin, muscles, blood, etc
4 Plants that have lost their capability to produce seeds can be propagated by this method.
It helps to grow plants bearing superior traits, as they are genetically identical to the parent plant.
5 DNA copying is an essential part of the reproduction process because an organism's entire genetic information is contained within the DNA. If the DNA mutates, then there is a chance that the resulting organism may be born with a deformity or other genetic abnormality.