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Practice Questions: Blood Relations | Science Olympiad Class 6 PDF Download

Q1: How is P related to N in the given family tree?
Practice Questions: Blood Relations | Science Olympiad Class 6

(a) Father
(b) Paternal uncle
(c) Maternal uncle
(d) Son
Ans: (c)
Explanation:
Option [c] is correct because the family tree makes it clear that M is the mother of N and P is the brother of N's mother (M). Therefore, brother of mother (M) will definitely be maternal uncle who is P. Rest of the options is incorrect because of the correctness of option [c].

Q2: How many males are there in the following family tree?
Practice Questions: Blood Relations | Science Olympiad Class 6
(a) 3
(b) 5
(c) 1
(d) 4
Ans: 
(d)
Explanation: Option [d] is correct because in the given family tree PT, RN, DS and ME are the pairs of Brother and sister in which T, R, S and M are males. Rest of the options is incorrect because of the correctness of option [d].

Q3: See the following family tree and find the total number of female members in the family.
Practice Questions: Blood Relations | Science Olympiad Class 6
(a) 3
(b) 1
(c) 2
(d) Can't say
Ans:
 (d)
Explanation: Option [d] is correct because there is no sign of ′+′ or ′−′ for R. Therefore, R's gender is not known. Rest of the options is incorrect because of the correctness of option [d].

Q4: Who is the son in law of P and I in the family tree given below?
Practice Questions: Blood Relations | Science Olympiad Class 6
(a) S
(b) T
(c) E
(d) N
Ans: (b)
Explanation: 
Option [b] is correct because it is clear from the family tree that D is the daughter of P and L and T is the husband of D. Therefore, daughter's (D's) husband (T) will be the son in law. Rest of the options is incorrect because of the correctness of option [b].

Q5: In the following family tree??.is the paternal grandfather D.
Practice Questions: Blood Relations | Science Olympiad Class 6
(a) X
(b) C
(c) D
(d) P
Ans: (d)
Explanation: Option [d] is correct because in the given family tree X is the son of P and D is the daughter of X. Therefore, it is clear that P is the father of D's father and father of father is grandfather Here, P is the grandfather of D. Rest of the options is incorrect because of the correctness of option [d].

Q6: Reena said, "The man going on the road is my mother's husband". How is the man related to Reena?
A) Brother
B) Son
C) Father
D) Uncle
Ans: (c)
Explanation:
Reena states, "The man going on the road is my mother's husband." In familial terms, "mother's husband" refers to Reena's father. Therefore, the man is Reena's father. Hence, the correct answer is C) Father.

Q7: Pointing to a man in a photograph, Priya said, "He is the father of the brother of my sister." How is the man related to Priya?
(a) Father
(b) Uncle
(c) Brother
(d) Grandfather (maternal)
Ans:
(c)
Explanation: Priya mentions, "He is the father of the brother of my sister."
Breaking it down:

  • "Brother of my sister" refers to Priya's brother.
  • "Father of the brother" would be the father of Priya's brother.

Therefore, the man in the photograph is Priya's father. Hence, the correct answer is C) Brother.

Q8: Pointing to a girl playing in the park, Mrs. Kapoor said, "She is the daughter of my daughter." How is that girl related to Mrs. Kapoor?
(a) Daughter
(b) Sister
(c) Granddaughter
(d) Mother
Ans: 
(c)
Explanation: Mrs. Kapoor states, "She is the daughter of my daughter."
This implies that the girl is Mrs. Kapoor's granddaughter. Therefore, the correct answer is C) Granddaughter.

Q9: In a family consisting of four members - A, B, C, and D, where A is the father of B, and C is the wife of A. D is the grandson in the family. How is B related to D?
(a) Grandfather
(b) Son
(c) Brother
(d) Father
Ans:
(b)
Explanation: In the family:

  • A is the father of B.
  • C is the wife of A (implying she is B's mother).
  • D is the grandson, which means D is the son of B.

Therefore, B is the father of D. Hence, the correct answer is B) Son.

Q10: Pointing to a boy in a photograph, Rahul said, "He is the only son of my mother's husband." Here, Rahul is talking about...
(a) Himself
(b) His brother
(c) His cousin
(d) His nephew
Ans: 
(a)
Here, "my mother's husband" refers to Rahul's father. So, the boy in the photograph is the only son of Rahul's father, which means he is Rahul's brother. Therefore, Rahul is talking about himself. Hence, the correct answer is (a) Himself.

The document Practice Questions: Blood Relations | Science Olympiad Class 6 is a part of the Class 6 Course Science Olympiad Class 6.
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FAQs on Practice Questions: Blood Relations - Science Olympiad Class 6

1. What are blood relations?
Ans. Blood relations refer to the relationships that exist between individuals due to their biological connections. These relationships include parents, siblings, children, grandparents, grandchildren, aunts, uncles, nephews, and nieces.
2. How do blood relations affect inheritance?
Ans. Blood relations play a crucial role in inheritance as they determine who has the right to inherit the property or assets of a deceased person. In most cases, the closest blood relatives, such as children or spouses, have priority in inheritance rights.
3. Can blood relations be determined through DNA testing?
Ans. Yes, DNA testing can determine blood relations accurately. Through DNA analysis, scientists can identify genetic similarities between individuals, establishing their biological relationship. This is particularly useful in cases where paternity or maternity needs to be confirmed.
4. Are blood relations important in medical history?
Ans. Yes, blood relations are essential in medical history as they provide valuable information about the risk of inherited diseases or genetic conditions. Knowing the medical history of blood relatives can help healthcare professionals assess an individual's susceptibility to certain illnesses and recommend appropriate preventive measures.
5. Can blood relations impact immigration applications?
Ans. Yes, blood relations can have an impact on immigration applications. Many countries have specific immigration policies that allow family members to sponsor or join their relatives who are already residing in the country. In such cases, blood relations are considered when assessing eligibility for immigration.
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