Microtubules are the constituents of (a) centrioles, spindle fibres and chromatin (b) centrosome, nucleosome and centrioles (c) cilia, flagella and peroxisomes (d) spindle fibres, centrioles and cilia.
The Golgi complex participates in : (1) Respiration in bacteria (2) Formation of secretory vesicles (3) Fatty acid breakdown (4) Activation of amino acid
Which of the following is true for nucleolus? (1) It takes part in spindle formation. (2) It is a membrane-bound structure. (3) Larger nucleoli are present in dividing cells. (4) It is a site for active ribosomal RNA synthesis.
A taxon is (a) a group of related families (b) a group of related species (c) a type of living organisms (d) a taxonomic group of any ranking.
The term “New Systematics” was introduced by (a) Bentham and Hooker (b) Linnaeus (c) Julian Huxley (d) A.P. de Candolle.
Which one is a wrong statement? (a) Haploid endosperm is typical feature of Gymnosperms. (b) Brown algae have chlorophyll a and c and fucoxanthin. (c) Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms. (d) Mucor has biflagellate zoospores.