Question

What is polymorphism explain it by taking example of obelia

Answer 1

The medusae of most Obelia species do not grow well on a diet of Artemia salina nauplii, the usual food for laboratory‐reared hydrozoans, and their rearing is often difficult. Previous observations reported that Obelia medusae might eat phytoplankton, driven to the mouth by movements of both the bell and the tentacles

Answer 2

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• Polymorphism is a form of genetic variation in which distinct nucleotide sequence can exist at different sites in a DNA molecule.
• This heritable mutation is observed at a high frequency in a population.
• It arises due to mutation either in somatic cell or in the germ cells.
• The germ cell mutation can be transmitted from parents to their offsprings.
• This results in accumulation of various mutations in a population, leading to variation and polymorphism in the population.
• This plays a very important role in the process of evolution and speciation.