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CBSE Class 12-science Answered

Explain why all copulations do not result in pregnancy. 
Asked by Topperlearning User | 13 Jun, 2014, 10:55: AM
answered-by-expert Expert Answer

Fertilization takes place in the fallopian tube. The copulation is timed such that the sperms reach the fallopian tube when ovum is still there and will then only be able to cause effective fertilization. Hence, all copulations do not result in pregnancy.

Answered by | 13 Jun, 2014, 12:55: PM
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