MCQ
Action of vaginal diaphragm is
- APrevent the ova to come in the uterus
- ✓Prevent the sperm to come in contact with ova
- CSpermicidal
- DAnti-implantational
(b) Diaphragm and cervical cap are dom-shaped rubber plastic covers that are fitted on the cervix in the females vegina and check the entry of sperms into the uterus.
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Statement $I$: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement $II$: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements, choose the correct answer from the options given below: