Nuclear envelope

Double-membrane structure; the outer membrane is continuous with the endoplasmic reticulum and the two membranes are perforated by nuclear pore complexes

TLS Online TPP Program

#Id: 3594

#Unit 3. Fundamental Processes

In 1961 Marshall Nirenberg and Heinrich Matthaei reported the first breakthrough in reading nucleotide codon in amino acid frame.

TLS Online TPP Program

#Id: 8082

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 8491

#Unit 1. Molecules and their Interaction Relevant to Biology

The peptide bond is estimated to have 40% double bond character

TLS Online TPP Program

#Id: 6337

#Unit 8. Inheritance Biology

Haplodiploid sex determination

In hymenoptera insects, males are haploid, and females are diploid.  All fertilized eggs give rise to female and unfertilized eggs give rise to males.

TLS Online TPP Program

#Id: 7745

#Unit 1. Molecules and their Interaction Relevant to Biology

The noble gases are left out of the trends in atomic radii because there is great debate over the experimental values of their atomic radii.

The SI units for measuring atomic radii are the nanometer (nm) and the picometer (pm). 1 nm = 1 X 109 m; 1 pm = 1 X 10-12 m.