4126: With reference to 'stem cells', frequently in the news, which of the following statements is/are correct?

1. Stem cells can be derived from mammals only.

2. Stem cells can be used for screening new drugs.

3. Stem cells can be used for medical therapies.

Select the correct answer using the codes given below :

(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
4127: Which of the following are in Agasthyamala Biosphere Reserve?

(a) Neyyar, ldl Peppara and Shendurney Wildlife Sanctuaries; and Kalakad Mundanthurai Tiger Reserve

(b) Mudumalai, Sathyamangalam and Wayanad Wildlife Sanctuaries; and Silent Valley National Park

(c) Kaundinya, Gundla Brahmeswaram and Papikonda Wildlife Sanctuaries; and Mukurthi National Park

(d) Kawal and Sri Venkateswara Wildlife Sanctuaries; and Nagarjunasagar-Srisailam Tiger Reserve
4128: Estuaries possess distinct blooms of excessive growth of a pigmented dinoflagellates. These blooms are called

(a) red tides
(b) sea tides
(c) black tides
(d) sea flowers
4129: Fat is stored in the human body in:

(a) Muscular tissue

(b) Connective tissue

(c) Adipose tissue

(d) Epithelial tissue
4130: While delivering the presidential address, the Congress President who advocated the introduction of Roman script for Hindi language was

(a) Mahatma Gandhi

(b) Jawaharlal Nehru

(c) Abul Kalam Azad

(d) Subhas Chandra Bose