Match List-I with List-II: Choose the correct answer from the options given below:List-I List-II (A) Surgical method (I) Saheli (B) Oral contraceptive (II) Condom (C) Barrier contraceptive (III) Sterilisation (D) Natural contraceptive (IV) Lactational amenorrhea
(A)-(III), (B)-(I), (C)-(II), (D)-(IV)
This question asks us to match different categories of contraceptive methods with specific examples. Understanding the different types of contraception is key to answering this question correctly. Let's look at each category and its corresponding example.
Contraception methods are ways to prevent pregnancy. They can be broadly classified into several categories based on how they work. We need to match the type of method from List-I with the specific example from List-II.
Based on our analysis, the correct matching is:
We can also represent this matching in a table format:
| List-I (Method Type) | List-II (Example) | Match |
|---|---|---|
| (A) Surgical method | (III) Sterilisation | (A) - (III) |
| (B) Oral contraceptive | (I) Saheli | (B) - (I) |
| (C) Barrier contraceptive | (II) Condom | (C) - (II) |
| (D) Natural contraceptive | (IV) Lactational amenorrhea | (D) - (IV) |
Now we compare our correct matching (A)-(III), (B)-(I), (C)-(II), (D)-(IV) with the given options.
The matching (A)-(III), (B)-(I), (C)-(II), (D)-(IV) corresponds to Option 2.
| Contraception Method Type | Mechanism | Examples |
|---|---|---|
| Surgical Method (Sterilisation) | Permanent block/severance of reproductive ducts (vas deferens in males, fallopian tubes in females) | Vasectomy, Tubectomy (Tubal Ligation) |
| Oral Contraceptive | Pills containing hormones to inhibit ovulation or implantation, or non-hormonal methods | Combined pills, Progestogen-only pills, Saheli (Centchroman) |
| Barrier Method | Physical barrier preventing sperm from reaching the egg | Condoms (male & female), Diaphragms, Cervical Caps, Sponges |
| Natural Method | Methods based on understanding the fertile period and avoiding intercourse, or physiological states | Rhythm method, Withdrawal, Lactational Amenorrhea Method (LAM) |
Family planning involves using methods to control the number and spacing of children. Contraception is a major part of family planning. Methods can be temporary or permanent.
Choosing the right contraception method depends on individual health, lifestyle, future family plans, and effectiveness requirements.
A thermostable DNA polymerase is isolated from:
The processing of pro-insulin involves:
Sickle-cell anaemia is:
Arrange the steps of Polymerase Chain Reaction in proper sequence:
A. Selection of desired fragment of DNA
B. Annealing
C. Amplification
D. Extension
E. Denaturation
Choose the correct answer from the options given below:
The enzyme which is used to remove nucleotides from the ends of a DNA fragment is: