Which of the following represents the class of Tubifex?
Echiurida
Archiannetida
Hirudinea
Oligochaeta
Choose the option representing the incorrect match of different feature of major classes of algae.
Class | Cell wall | Dominant pigment |
Chlorophyceae | Cellulose + pectic material | Chl a and b, and carotene |
Phaeophyceae | Silica + pectic material | Chl a and c, carotene |
Rhodophyceae | Pectic material + cellulose | Chl a and d, carotene |
Cyanophyceae | Mucopeptide + Mumaric acid | Chl a, carotene |
Select the mismatch from those given below.
Noctiluca bioluminescence
Gonyaulax catenella saxitoxin
Pyrodinum red tide
Ceratium-zygotic meiosis
Receptacle of antheridiophore and archegoniophore of Marchantia respectively are
8 lobed, 9 rays
6 lobed, 4 rays
9 lobed, 5 rays
2 lobed, 6 rays
The Floral formula of tobacco is
BrOK(5) C(5) A5 G(2)
OK6 - 5 A10 G(2)
BrOK2 + 2 C4 A2 + 4 G1(d)
OP2 A3 G1
A.
BrOK(5) C(5) A5 G(2)
Tobacco is the member of family Solanaceae, the floral formula for which is Br OK(5) C(5) A5 G2
The metrics described by whittaker which takes into account the number of species and their eveness is
Shannon index
Beta diversity
Species richness
Simpson index
Identify the correct match from the type of amino acids and their respective example.
Neutral - Proline (Pro)
Acidic - Asparagine (Asn)
Aromatic - Tryptophan (Try)
S-containing - Methionine (met)
Study the following statements with reference to drugs and choose the incorrect one
I. Barbiturates cause sleeplessness.
II. Opioids are obtained from the leaves of Erythroxylum coca.
III. Morphine is a very effective sedative and pain killer.
IV. Cocaine is obtained from Indian hemp plant.
I, II, III
II, III, IV
I, III, IV
I, II, IV
During fertilisation, zona pellucida is dissolved by
hyaluronidase
hyaluronic acid
renin
acrosin