Question { 3229 }

What are low-density lipoproteins?what are their functions?

Answer

Major carriers of cholesterol in blood has a diametre of 22
nm and a mass of 3000kd contains a core about 1500
esterified cholesterol molecules.
highly hydrophobic core is covered by shell of phospholipids .
role of LDL is to transport cholesterol to peripheral
tissues and regulate denovo cholesterol synthesis at these
sites.

Question { 5261 }

what is the concept behind central dogma of molecular
genetics?

Answer

PROCESS OF understanding protein synthesis through central
dogma of molecular genetics postulates that information
flows from nucleic acids to protein.the first step is
replication is the copying of parental dna to form daughter
molecules having same nucleotide sequences.the second step
is trancription in which genetic message in dna copied in
the form of rna.
transcription may be defined as dna dependent rna synthesis .
third step is translation in which genetic message in mrna
is translated on the ribosomes into protein with specific
sequence of aminoacids.