Multiple choice questions HOTS XXVI — task. Science CBSE, Class 9.

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1. Structural elements and arrangements of Flagella, Centrioles, Cilia and Basal Bodies are similar, leading to a probable hypothesis.

Survival for motility must be selected for microtubular arrays in circular patterns
Motor proteins like dynein must have evolved before any of those four sorts of structures.
Loss of basal bodies should cause loss of all cilia, flagella, and centrioles.
Disruption of one of these types of structures should necessarily disrupt each of the others as well.

2. The process of association of more than one ribosome with a single molecule of mRNA complex is known as ________.

Polypeptide
Polysaccharide
Polysome
Polymer

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