Q21 of 21 Page 55

How many eggs do you think were released by the ovary of a female dog which gave birth to 6 puppies?

Dogs and rodents are polyovulatory species i. e. produces more than one egg at a single time. In these species, during ovulation more than one ovum is released from their ovary, hence six eggs released from the female dog’s ovary produces six puppies.


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What is parturition? Which hormones are involved in induction of parturition?

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In our society the women are often blamed for giving birth to daughters.

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How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?