MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

Which of the following statements about DNA is/are correct?
1. DNA is the hereditary material of all living organisms.
2. All segments of DNA code for the synthesis of proteins.
3. Nuclear DNA is double-helical with two nucleotide chains that run antiparallel.
4. DNA is also found in mitochondria.

Select the correct answer using the codes given below.

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Important Questions on Biology

EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 2>Q 79
Who synthesized DNA in vitro?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 2>Q 80
Down's syndrome is characterized by
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 2>Q 81
Assertion (A) Sex chromatin body is an inactivation of one X-chromosome in diploid females.
Reason (R) Sex chromatin is simply called Barr body.
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 2>Q 83
A diseased man marries a normal woman and they get three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 2>Q 84
A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughters and 5 sons). Three of the sons suffer from the given disease but none of the daughters are affected. Which one of the following mode of inheritance do you suggest for this disease?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 2>Q 85
Match List 1 (Genetic Disease) with List II (Causes)
     List I                                              List II
A. Duchene-muscular dystrophy   1. Autosomal recessive
B. Hypertrichosis                           2. Autosomal dominant
C. Tay-Sach's disease                   3. Y-linked inheritance
D. Nai-Patella syndrome                4. X-Linked inheritance
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 2>Q 86
Consider the following statements
1. Ribosomal RNA derived from nucleolar DNA.
2. Transfer RNA synthesized in nucleus on DNA template.
3. Messenger RNA convey genetic information from DNA of chromosomes to the ribosomes.
Which of the statements given above are correct about RNA?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 11 - Biology>Exercise 2>Q 87
Which of the following features of DNA make if unequally suited to store and transmit genetic information from generation to generation?