WorksheetsLAC OPERON
Total questions: 5
Worksheet time: 3mins
Name
Class
Date
1.
how many components in lac operon ?
a)
2
b)
3
c)
4
2.
state 3 structural gene of lac operon ?
a)
lacW /lacY / lacZ
b)
lacY / lacX / lacZ
c)
lacA / lacZ / lacY
d)
lacY / lacA / lacC
3.
what is the isomer of lactose ?
a)
Allolactose
b)
Allolac
c)
Aloperon
d)
alololololo comelnya single
4.
in lac operon mechanism, when lactose is present, lac repressor is active or inactive ?
a)
active
b)
inactive
5.
what are the enzymes (produced by lacY/ lacZ/ LacA) involves in lac operon mechanism ?
a)
β-galactocidase
b)
permease
c)
transacetylase
d)
lipase
e)
amilase
100 %
