Multiple Choice QuestionsThe Okazaki fragments in DNA chain growth
Results in transcription
Polymerise in the 3' to 5' direction and forms replication fork
Prove semi-conservative nature of DNA replication
Polymerise in the 5' to 3' direction and explain 3' to 5 DNA replication
One gene-one enzyme relationship was established for the first time in
Neurospora crassa
Salmonella typhimurium
Escherichia coli
Diplococcus pneumoniae
Balbiani rings are the structural features of
allosomes
polytene chromosomes
autosomes
lampbrush chromosomes
DNA element with ability to change position is called
cistron
transposon
intron
recon
B.
transposon
Transposon is a DNA segment or genetic element moving from one chromosome to another. It was introduced by R W Hedges and A E Jacob in 1974.
Cistron is the functional unit of DNA molecules as it codes for a particular gene product.
Recon is the cross- over unit or it is segment of DNA which participates in crossing over.
Introns are the interrupted genes which do not form the part of mRNA and are further removed from primary mRNA during gene expression in eukaryotes.
A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?
Introns
Exons
Both (a) and (b)
None of these
The back bone of RNA consists of which of the following sugar?
Deoxyribose
Ribose
Sucrose
Maltose
Switch
