Home
Class 12
BIOLOGY
Many ribosomes may associate with a sing...

Many ribosomes may associate with a single mRNA to form mutiple copies of a poolypeptide simultaneously. Such strings of ribosomes are termed as

A

Nucleosome

B

plastidome

C

Polyhedral bodies

D

Polysome

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • NCERT Exemplar Questions +2 (STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION)

    TRUEMAN BIOLOGY|Exercise MCQs|25 Videos

  • NEET (UG) -2019 (Conducted by CBSE on 05-05-2019)

    TRUEMAN BIOLOGY|Exercise MCQs|83 Videos

Similar Questions

Explore conceptually related problems

Several ribosomes may attach to a single mRNA and form a chain called

Assertion (A) : DNA code is copied in the synthesis of m-RNA. Reason ( R ) : t-RNA moves out of nucleus and after attaching on ribosomes form the template.

The following features occur during protein synthesis: (a) Movement of mRNA from the nucleus into the cytoplasm, where it binds to the ribosomes (b) Formation of tRNA-amino acid complex (c) Transcription of specific segments of DNA into mRNA molecules in the nucleus (d) Binding of N-terminal amino acid, methionine tRNA to the 'P' site of the ribosome. The tRNA anticodon 'pairs with AUG on mRNA' (e) Formation of peptide bond between first and second amino acids at the A site (f) Release of the complete polypeptide chain from mRNA and the ribosomes (g) Migration of dipeptide to form a tripeptide and then a polypeptide The correct order of events is:

Geometry of organic compound is often described in terms of the valence shell electron pair repulsion theory. The VSEPR model rests on the premise that an electron pair, either bonded pair or an unshared pair, associated with a particular atom will be as far away from the atom's other electron pairs as possible. The tricoordinate carbon atoms of an alkene or carbonyl group also form bonds with angles near 120^(@) . In these compounds, unsaturated double bonds have two electron pairs-those of the sigma and pi bonds. Repulsion by these two pairs are some what greater than those between single bonds, so that deviation from exact 120^(@) trigonal geometry is observed. Another factor which has important influence on shapes is non bonded repulsion between the atoms within the molecule. Such repulsion is also referred to as steric effects. Select the correct sequence of bond angles indicated in the above molecules.