The bases are at the interior of the double helix and are neatly stacked.
The phosphate groups groups are at the exterior of the DNA molecule
The sugar groups are at the interior of the DNA molecule
Answer:
A. Type I is part of innate, nonspecific immunity, while type II is part of adaptive, specific immunity.
Explanation:
Type I interferons: Are produced early on during infection and are responsible for activation of the innate immune response, e.g Natural Killer cells.
Type II interferons: Are produced as part of the innate immune response and act as a link between innate immune response and activation of the adaptive immune response.
Answer:
double helix
Explanation:
The double helix is a description of the molecular shape of a double-stranded DNA molecule. In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they called a "double helix," in the journal Nature.
Answer:tailing at 3' end protects mRNA from attack by 3' exonuclease and 5' capping is useful for recognition of mRNA
Explanation:
The mRNA formed and released from the DNA template is known as primary transcript. In mammalian system, it undergoes intensive modification to become the mature mRNA.
Post transcription processing includes removal of Introns, splicing of exons, poly-A tailing at 3'end and capping at 5' end.
The Poly-A tailing at 3' end occurs in the nucleoplasm, the 3' end is polyadenlated involves with 20-250 nucleotides long. This tail protects mRNA from attack by 3' exonuclease activity
5' end capping end also is done in the nucleus. The cap is useful in recognition of mRNA by the translating machinery.
Answer:
1 and 3
Explanation:
Magnetic waves always go from north to south. So judging by the arrows you can tell the left/yellow pole is the north one. And since that is the north one, the green/right one is the south pole.
