Blood Relations – Quick Study Notes
(For Assam Forest Guard – Reasoning Ability)
1. What Are Blood Relations?
- Blood relations are people who are connected by family ties.
- Think of a tree:
- Roots → Your parents.
- Branches → Your siblings, cousins, etc.
Every relation on the tree can be traced back to a common ancestor.
2. Basic Terms (Easy, Everyday Words)
| Term | Simple Picture | Tiny Example |
|---|---|---|
| Father | The man who gave you life | “My father is a teacher.” |
| Mother | The woman who gave you life | “My mother is a nurse.” |
| Son / Daughter | Your child | “She is my daughter.” |
| Brother / Sister | Your sibling | “My brother is 5 years older.” |
| Uncle | Your parent’s brother | “My uncle lives in Guwahati.” |
| Aunt | Your parent’s sister | “My aunt cooks well.” |
| Grand‑father / Grand‑mother | Parent of your parent | “My grandfather is 70.” |
| Grand‑son / Grand‑daughter | Child of your child | “My grandson loves cricket.” |
| Cousin | Child of your aunt/uncle | “My cousin and I play chess.” |
| Niece / Nephew | Child of your sibling | “My niece is 3.” |
| Brother‑in‑law / Sister‑in‑law | Your spouse’s sibling or your sibling’s spouse | “My brother‑in‑law is a lawyer.” |
3. Direction of Relation
| Direction | How It Looks |
|---|---|
| Forward | From you to your child (Son / Daughter) |
| Backward | From you to your parent (Father / Mother) |
| Lateral | Same generation (Brother / Sister, Cousin) |
| Parallel | Same level, but through a different parent (e.g., your cousin’s child is also a cousin, but one level up) |
4. Simple Rules to Use
- Same Generation
- If two people share the same parents → they are siblings.
- One Generation Apart
- Your parent’s sibling → your uncle/aunt.
- Your child’s sibling → your son/daughter’s brother/sister.
- Two Generations Apart
- Your parent’s child → you.
- Your child’s child → your grandchild.
- Same Lineage, Different Branch
- Parent’s sibling’s child → your cousin.
5. Quick Test – Tiny Example
Question
A and B are brothers. B’s son is C. Who is C to A?
| Step | Reason | Answer |
|---|---|---|
| 1 | A and B are brothers → same parents | Same generation |
| 2 | B’s son = C → C is one generation below B | C is B’s child |
| 3 | A is B’s brother → A is C’s uncle | C is A’s nephew |
6. Practice Question (Try It)
Question
D is the daughter of E. E’s brother is F.
Who is F to D?
| Step | Reason | Answer |
|---|---|---|
| 1 | D’s parent → E | D is child of E |
| 2 | E’s brother → F | F is a sibling of D’s parent |
| 3 | Sibling of parent → uncle | F is D’s uncle |
7. Quick Tips for the Exam
- Draw a tiny tree when the question is complex.
- Mark generations as “↑” for parents, “↓” for children.
- Remember:
- Same parents → siblings.
- Parent’s sibling → uncle/aunt.
- Child of sibling → niece/nephew.
- Practice a few more questions to get comfortable.
Final Thought
Think of blood relations like a family photo album.
Each picture (person) is linked with clear lines (parent‑child, sibling, cousin).
The more lines you follow, the clearer the family map becomes.
Happy studying!