Download App

STD 12 - 3. reproductive health — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 3. reproductive health1 Mark
MCQ
Natural methods of contraception
  • A
    Increase spermicidal activity
  • ✓
    Prevent fertilisation
  • C
    Decrease mortality
  • D
    Increase mortality
✓

Answer

Correct option: B.
Prevent fertilisation
b
Natural method of contraceptive are the natural ways to prevent fertilisation. These methods are $(i)$ Periodic Abstinence Couple avoid coitus or intercourse from day $10$ to $17$ of the menstrual cycle when ovulation is expected to occur $(ii)$ Coitus interruption or withdrawl method Withdraw of penis from the vagina just before ejaculation so as to avoid insemination $(iii)$ Lactational Amenorrhoea (Absence of menstruation) This method is based on the fact that ovulation and therefore the cycle don't occur during the period of intense following parturition. Therefore, as long as the mother breast feeds the child, chances of conception are almost nil

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 12 - 3. reproductive health→STD 12 - 3. reproductive health — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Male child will be born if
→
$A$ : Dominance is not an autonomous feature of a gene.
$R$ : It depends as much on the gene product and the production of a particular phenotype from this product
→
The technique in which foreign DNA is precipitated over surface of metal particles for passing into target cells is __________:
→
In the exponential growth equation $\mathrm{N}_{\mathrm{t}}=\mathrm{N}_{0} \mathrm{e}^{\mathrm{rt}}$, $e$ represents :
→
Ravi, who lived at sea level, had around $5$ million $RBC$ per cubic millimeter of his blood. Later when he lived at an altitude of $18,000 ft$, showed around $8$ million $RBC$  per cubic millimeter of blood. This is an adaptation because
→
Consider the following four conditions $(1- 4)$ and select a correct pair of them as adaptations to environment in desert lizards.

Conditions:

$1$. Burrowing in soil to escape high temperature.

$2$. Losing heat rapidly from the body during high temperature.

$3$. Bask in sun when temperature is low.

$4$. Insulating body due to thick fatty dermis.

→
Both deoxyribose and ribose belong to a class of sugars called.
→
The function of $tRNA$ is
→
Which type of curve will be for the coming century
→
Which of the following statement is incorrect about Leydig cells
→