3121: Phenylketonuria is an example of an in born error of metabolism. This error refers to

(a) hormonal overproduction

(b) atrophy of endocrine glands

(c) inherited lack of an enzyme

(d) non-disjunction
3122: Six roads lead to a country. They may be indicated by letters X, Y, Z and digits 1, 2, 3. When there is storm, Y is blocked. When there are floods X, 1 and 2 will be affected. When road 1 is blocked, Z also is blocked. At a time when there are Hoods and a storm also blows, which road(s) can be used ?
(a) Z and 2
(b) Only Z
(c) Only 3
(d) Only Y
3123: The 1929 Session of Indian National Congress is of significance in the history of the Freedom Movement because the

(a) Attainment of Self-Government was declared as the objective of the Congress
(b) Attainment of Poorna Swaraj was adopted as the goal of the Congress
(c) Non-Cooperation Movement was launched
(d) Decision to participate in the Round Table Conference in London was taken
3124: Match the following research institutes A, B, C and D with their respective location labelled as 1 to 6 in the given rough outline map

A. Central Drug Research Institute
B. National Atlas and Thematic Mapping Organisation
C. National Institute of Ocean Technology
D. Temperate Forest Research Centre

Select the correct answer using the codes given below :

Codes:

(a) A-4, B-3, C-2, D-6
(b) A-4, B-5, C-1, D-6
(c) A-2, B-3, C-4, D-5
(d) A-1, B-6, C-2, D-3
3125: With reference to 'Near Field Communication (NFC) Technology', which of the following statements is/are correct?

1. It is a contactless communication technology that uses electromagnetic radio fields.
2. NFC is designed for use by devices which can be at a distance of even a metre from each other
3. NFC can use encryption when sending sensitive information.

Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 Only
(c) 1 and 3 only
(d) 1, 2 and 3