Carrageenan monosaccharides are joined by alternating 1,3 and 1,4 glycosidic bonds.
Suggest how the alternating 1,3 and 1,4 glycosidic bonds affect the
structure of the carrageenan polysaccharide.
[1 mark]

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

What best describes emerging scientific ideas