Which of the following characterizes parthenogenesis?

An individual may change its sex during its lifetime

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Specialized groups of cells may be released and grow into new individuals

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An egg develops without being fertilized

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Both members of a mating pair have male and female reproductive organs

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Solution

The correct option is C An egg develops without being fertilized
Parthenogenesis, a reproductive strategy that involves the development of a female gamete (sex cell) without fertilization. An egg produced parthenogenetically may be either haploid (i.e., with one set of dissimilar chromosomes) or diploid (i.e., with a paired set of chromosomes). Parthenogenesis has received considerable attention as a tool for the production of stem cells. The possibility of deriving stem cells from parthenogenetic embryos could eliminate the requirement to produce and destroy viable embryos and may reduce the ethical concerns surrounding stem cell research.
So the correct option is 'an egg develops without being fertilized'.

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Q. Are individuals of all species either male or female (unisexual)? Or are there species which possess both the reproductive organs (bisexual)?

Parthenogenesis is a mode of reproduction in which a haploid cell develops into an individual without undergoing fertilisation. This is an asexual mode of reproduction.

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