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  4. The accompanying diagram shows the uterine tubes of four women (P, Q, R and S). <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/biology/ff8c0fc57ce0c98a1776cf37891e2abf-.png /> In which two women is fertilisation impossible at present?

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Q. The accompanying diagram shows the uterine tubes of four women ($P, Q, R$ and $S$).
image
In which two women is fertilisation impossible at present?

Reproductive Health

Solution:

Figure $'R'$ is showing complete blockage of Fallopian tubes and figure$S'$ is showing tubectomy which is a surgical method of contraception in females. When both the Fallopian tubes are blocked or cut and tied, there will be no transport of gametes and thus no fertilisation.