Which of the following is true for nucleolus ?
(1) Larger nucleoli are present in dividing cells.
(2) It is a membrane-bound structure.
(3) It takes part in spindle formation.
(4) It is a site for active ribosomal RNA synthesis.

AGGTATCGCAT is a sequence from the coding
strand of a gene. What will be the corresponding
sequence of the transcribed mRNA ?
(1) AGGUAUCGCAU
(2) UGGTUTCGCAT
(3) ACCUAUGCGAU
(4) UCCAUAGCGUA

Select the correct match.
(1) Haemophilia - Y linked
(2) Phenylketonuria - Autosomal
dominant trait
(3) Sickle cell anaemia - Autosomal
recessive trait,
chromosome-11
(4) Thalassemia - X linked

The oxygenation activity of RuBisCo enzyme in
photorespiration leads to the formation of :
(1) 2 molecules of 3-C compound
(2) 1 molecule of 3-C compound
(3) 1 molecule of 6-C compound
(4) 1 molecule of 4-C compound and 1 molecule
of 2-C compound