21. The body of the ovule is fused within the funicle at
(1) Micropyle
(2)
Nucellus
(3) Chalaza
(4)
Hilum
22. The process of growth is maximum during
(1) Lag phase
(2) Senescence
(3) Dormancy
(4)
Log phase
23. Bilaterally symmetrical and acoelomate animals are exemplified by
(1)
Platyhelminthes
(2) Aschelminthes
(3) Annelida
(4) Ctenophora
24. Which of the following is put into Anaerobic sludge digester for further sewage treatment?
(1) Floating debris
(2) Effluents of primary treatment
(3)
Activated sludge
(4) Primary sludge
25. Match the following columns and select the correct option.
Column-I Column-II
(a) Floating Ribs (i) Located between second and seventh ribs
(b) Acromion (ii) Head of the Humerus
(c) Scapula (iii) Clavicle
(d) Glenoid cavity (iv) Do not connect with the sternum
(a) (b) (c) (d)
(1) (i) (iii) (ii) (iv)
(2) (iii) (ii) (iv) (i)
(3)
(iv) (iii) (i) (ii)
(4) (ii) (iv) (i) (iii)
26. Identify the wrong statement with regard to Restriction Enzymes.
(1) They cut the strand of DNA at palindromic sites.
(2) They are useful in genetic engineering.
(3) Sticky ends can be joined by using DNA ligases.
(4) Each restriction enzyme functions by inspecting the length of a DNA sequence.
27. Match the following columns and select the correct option.
Column-I Column-II
(a) Gregarious, polyphagous pest (i) Asterias
(b) Adult with radial symmetry and larva with bilateral symmetry (ii) Scorpion
(c) Book lungs (iii) Ctenoplana
(d) Bioluminescence (iv) Locusta
(a) (b) (c) (d)
(1)
(iv) (i) (ii) (iii)
(2) (iii) (ii) (i) (iv)
(3) (ii) (i) (iii) (iv)
(4) (i) (iii) (ii) (iv)
28. If the head of cockroach is removed, it may live for few days because
(1) the cockroach does not have nervous system.
(2) the head holds a small proportion of a nervous system while the rest is situated
along
the ventral part of its body.
(3) the head holds a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.
(4) the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
29. Which of the following regions of the globe exhibits highest species diversity?
(1) Madagascar
(2) Himalayas
(3)
Amazon forests
(4) Western Ghats of India
30. Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?
(1) Peroxisomes
(2)
Golgi bodies
(3) Polysomes
(4) Endoplasmic reticulum
Answers:
21. (4) Hilum
22. (4) Log phase
23. (1) Platyhelminthes
24. (3) Activated sludge
25. (3) (iv) (iii) (i) (ii)
26. (3) Sticky ends can be joined by using DNA ligases.
27. (1) (iv -a) (i-b) (ii-c) (iii-d)
28. (2) the head holds a small proportion of a nervous system while the rest is situated
along the ventral part of its body.
29. (3) Amazon forests
30. (2) Golgi bodies