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Karnataka Board PUCPUC Science 2nd PUC Class 12

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

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Question

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

Short Answer
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Solution

Dogs have multiple births, so several eggs are released and develop at the same time. If fertilised, each egg implants in the uterine wall and develops into a puppy. The gestation period in dogs is about 56 to 72 days, and a typical litter contains approximately six puppies, although this number may vary depending on the breed. Therefore, it can be concluded that approximately 6 eggs were released by the ovary, resulting in the birth of 6 puppies.

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Chapter 2: Human Reproduction - EXERCISES [Page 40]

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NCERT Biology [English] Class 12
Chapter 2 Human Reproduction
EXERCISES | Q 21. | Page 40

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Figure A

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C Blastocyst Fertilized egg Unfertilized egg
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