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Science · 2022 · 2 marks
CBSE 2022 · Region 1 · Set 3 · Q4
(a)What happens when in a human female the egg released by the ovary is not fertilised ?(b)Name one bacterial and one viral infection caused due to unsafe sex. $\displaystyle 1$+$\displaystyle 1$
(a)
What happens when in a human female the egg released by the ovary is not fertilised ?
(b)
Name one bacterial and one viral infection caused due to unsafe sex. $\displaystyle 1$+$\displaystyle 1$
Marking-scheme solution
(a) If the egg is not fertilized, it lives for about one day and the uterine lining formed to receive the fertilized egg slowly breaks and comes out through the vagina as blood and mucous along with unfertilized egg.
(b) Bacterial infection: Gonorrhoea/Syphilis. Viral infection: Warts / AIDS.
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CBSE Class 10 Science past-paper question from the 2022board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.