UPSC Prelims 2001 Q131: Science & Technology – Biology
Match List I with List II
and select the correct answer using the codes given below the Lists:
List I (Bone)
I. Breast - bone
II. Collar - bone
III. Knee - cap
IV. Shoulder blade
List II (Name)
A) Clavicle
B) Patella
C) Scapula
D) Sternum
- (a) I - D, II - A, III - C, IV - B
- (b) I - A, II - D, III - C, IV - B
- (c) I - A, II - D, III - B, IV - C
- (d) I - D, II - A, III - B, IV - C
Answer: (d) I - D, II - A, III - B, IV - C
Explanation
Matching common names of bones with their scientific names
| Bone (List I) | Name (List II) |
|---|---|
| I. Breast-bone | D. Sternum |
| II. Collar-bone | A. Clavicle |
| III. Knee-cap | B. Patella |
| IV. Shoulder blade | C. Scapula |
The breast-bone is the sternum, the collar-bone the clavicle, the knee-cap the patella and the shoulder blade the scapula. The code is I-D, II-A, III-B, IV-C.
Answer: (d) I - D, II - A, III - B, IV - C.
Why each option is right or wrong
- (a) Incorrect. The knee-cap is the patella and the shoulder blade the scapula, not the reverse.
- (b) Incorrect. Breast-bone and collar-bone are swapped, and so are knee-cap and shoulder blade.
- (c) Incorrect. Breast-bone and collar-bone are swapped.
- (d) CORRECT. Sternum, clavicle, patella, scapula.
Key point
Longest bone: femur; smallest bone: stapes (in the ear). Adults have 206 bones.
Remember
Sternum breast, clavicle collar, patella knee, scapula shoulder.
Common mistakes
- Swapping patella and scapula.
- Swapping sternum and clavicle.
- Not using the 'clavicle = collar' link.
Exam tip
Patella sounds like 'pat' on the knee; scapula is the flat blade on the back.
Sources
- NCERT Class XI — Biology, chapter 'Locomotion and Movement' (skeletal system)
- Gray's Anatomy — Skeletal system overview