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Published on: 17/10/2025
Download CBSE Class 12th Standard CBSE Biology question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 12th Standard CBSE Biology
Questions + Answers key
Take MCQ Biology Test

1.
2.
3.
4.
5.
6.
7.
8.
9.
Choose the correct option fromA,B and C.

A - Condoms, B - Copper-T, C - Implants
A -Tubectormy, B - Implants, C - Copper-T
A - Vasectomy, B - Condoms, C - Copper-T
A - Copper-T, B - Condorms, C - Implants
10.
Embryo with more than 16 blastomeres formed due to in vitro fertilisation is transferred into
uterus
Fallopian tube
fimbriae
cervix
11.
Identify the disease which is not a sexually transmitted disease.
Gonorrhoea
Syphilis
Amoebiasis
Chlamydiasis
12.
Which of the following is hormone releasing IUD?
LNG-20
Multiload-375
Lippes loop
Cu-7
13.
ZIFT is transfer of
zygote into fallopian tube.
a mixture of sperms and ova into the fallopian tube.
a mixture of sperms and ova into the uterus.
embryo into the uterus.
14.
The method of directly injecting a sperm into ovum in assisted reproductive, technology is called
GIFT
ZIFT
ICSI
ET
15.
Intensely lactating mothers do not generally conceive due to the
suppression of gonadotropins.
hyper secretion of gonadotropins.
suppression of gametic transport.
suppression of fertilisation.
16.
In which of the following ARTs, does in vivo fertilisation occur?
ZIFT
GIFT
ICSI
IVF
17.
Which of the following is hormone-releasing?
Multiload 375
LNG-20
Lippes loop
Cu-7
18.
Which one of the following groups includes all sexually transmitted diseases?
AIDS, syphilis, cholera
HIV, malaria, trichomoniasis
Gonorrhoea, hepatitis-B, clamydiasis
Hepatitis-B, haemophilia, AIDS.
19.
The test-tube baby programme employs which one of the following techniques
Intra cytoplasmic sperm injection (ICSI)
Intra uterine insemination (IUI)
Gamete intra fallopian transfer (GIET)
Zygote intra fallopian transfer (ZIFT)
20.
What is the figure given below showing in particular?

Ovarian cancer
Uterine cancer
Tubectomy
Vasectomy
21.
Medical Termination of Pregnancy (MTP) is considered safe up to how many weeks of pregnancy?
8 weeks
12 weeks
18 weeks
6 weeks
22.
Oral contraceptive pills helps in birth control by
killing sperms
killing ova
preventing ovulation
forming barrier between sperms and ova
23.
In-vitro fertilization is a technique that involves transfer of which one of the following into the fallopian tube??
Zygote only
Embryo only, upto 8 cell stage
Either zygote or early embryo foetus
embryo of 32 cell stage
24.
Cu ions released from copper releasing Intra Uterine Devices(IUDs)
prevent ovulation
make uterus unsuitable for implantation
increase phagocytosis sperms
suppress sperm motility
25.
The correct surgical procedure as a contraceptive method is:
Ovariectomy
Hysterectomy
Vasectomy
Castration
26.
Choose the correct answer regarding the ZIFT procedure?
Ova collected from a female donor are transferred to the fallopian tube to facilitate zygote formation.
Zygote is collected from a female donor and transferred to the fallopian tube.
Zygote is collected from a female donor and transferred to the uterus
Ova collected from a female donor and transferred to the uterus
27.
Which of the following is the component of oral pills?
Progesterone
Oxytocin
Relaxin
None of these
28.
Amniocentesis is a process to
determine any disease of heart
determine any hereditary disease of the embryo
know about the disease of brain
grow cell on culture medium
29.
Given below are the four methods and their modes of action in achieving contraception.Select their correct matching from the four options that follows.
|
control measures |
Mode of Action |
| (A) Pill | 1. Prevents sperms reaching cervix |
| (B) Condom | 2. Prevents implication |
| (C)Vasectomy | 3. Prevents ovulation |
| (D) Copper T | 4. Semen contains no sperms |
| A | B | C | D |
| 3 | 4 | 1 | 2 |
| A | B | C | D |
| 2 | 3 | 1 | 4 |
| A | B | C | D |
| 3 | 1 | 4 | 2 |
| A | B | C | D |
| 4 | 1 | 2 | 3 |
30.
Which of the following birth control measures can be considered as the safest?
the rhythm method
the use of physical barriers
termination of unwanted pregnancy
sterilization techniques
1.
(d)
2.
(a)
3.
(c)
4.
(d)
5.
(b)
6.
(c)
7.
(d)
8.
(a)
9.
(a)
A - Condoms, B - Copper-T, C - Implants
10.
(a)
uterus
11.
(c)
Amoebiasis
12.
(a)
LNG-20
13.
(a)
zygote into fallopian tube.
14.
(c)
ICSI
15.
(a)
suppression of gonadotropins.
16.
(b)
GIFT
17.
(b)
LNG-20
18.
(c)
Gonorrhoea, hepatitis-B, clamydiasis
19.
(d)
Zygote intra fallopian transfer (ZIFT)
20.
(c)
Tubectomy
21.
(b)
12 weeks
22.
(c)
preventing ovulation
23.
(c)
Either zygote or early embryo foetus
24.
(d)
suppress sperm motility
25.
(c)
Vasectomy
26.
(b)
Zygote is collected from a female donor and transferred to the fallopian tube.
27.
(a)
Progesterone
28.
(b)
determine any hereditary disease of the embryo
29.
(c)
| A | B | C | D |
| 3 | 1 | 4 | 2 |
30.
(d)
sterilization techniques
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