REPRODUCTION
REPRODUCTION IN ORGANISMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Development of new organism from sperm without fertilization
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It is found in certain lizards and turkey
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Syngamy do not occur
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In rotifers and honeybees, female gametes develops directly into new organism without fertilization
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Detailed explanation-1: -Parthenogenesis is one of the known means of asexual reproduction. Grafting (of plants) is also a type of asexual reproduction. Hence statements 2 and 3 are incorrect.
Detailed explanation-2: -Parthenogenesis is a natural form of asexual reproduction found most commonly in lower organisms and plants. It is shown by honeybee, where male honeybees (drones) are produced parthenogenetically from unfertilized eggs. The only function of drones is to fertilize the queen bee. Hence, option A is correct.
Detailed explanation-3: -Parthenogenesis is an adaptive strategy that allows organisms to reproduce when sexual reproduction is not possible due to environmental conditions. Parthenogenesis that happens by apomixis involves the replication of an egg by mitosis resulting in diploid cells that are clones of the parent.
Detailed explanation-4: -parthenogenesis, a reproductive strategy that involves development of a female (rarely a male) gamete (sex cell) without fertilization. It occurs commonly among lower plants and invertebrate animals (particularly rotifers, aphids, ants, wasps, and bees) and rarely among higher vertebrates.
Detailed explanation-5: -Parthenogenesis is not observed in frogs.