In which one of the following preparations are you likely to come across cell junctions most frequently?
Ciliated epithelium.
Thrombocytes
Tendon
Tendon
A.
Ciliated epithelium.
Specialized cell junctions occur at many points of cell-cell and cell matrix contact in all tissues, but they are particularly important and plentiful in epithelium.
Which of the following pairs are correctly matched?
Animals Morphological features
(i) Crocodile - 4-chambered heart
(ii) Sea urchin - Parapodia
(iii) Obelia - Thecodont
(iv) Lemur - Thecodont
A, C and D
B, C and D
Only A and D
Only A and D
A person who is on a longer hunger strike and is surviving only on water, will have
more sodium in his urine
less amino acids in his urine
more glucose in his blood
more glucose in his blood
What is common between parrot, platypus and kangaroo?
Homeothermy
Toothless jaws
Functional post-anal tail
Functional post-anal tail
A genetically engineered micro-organism use successfully in bioremediation of oil spills is a species of
Pseudomonas
Trichoderma
Xanthomonas
Xanthomonas
Which one of the following is a matching pair of a body feature and the animal possessing it?
Post-anal tail - Octopus
Ventral Central nervous system - Leech nervous system
Pharyngeal gill slits absent in embryo
Pharyngeal gill slits absent in embryo
Which one of the following pairs, is not correctly matched?
Abscisic acid - Stomatal closure
Gibberellic acid - Leaf fall
Cytokinin - Cell division
Cytokinin - Cell division
One gene-one enzyme relationship was established for the first time in
Neurospora crassa
Salmonella typhimurium
Escherichia coli
Escherichia coli
Which pair of the following belongs to Basidiomycetes?
Birds nest fungi and Pufballs
Pufballs and Calviceps
Peziza and Stink horns
Peziza and Stink horns
