1 )what do the differently written term 'Cry' and 'cry' represent 2 ) how does the gene of - Biology - Biotechnology and its Applications

Question

1 )what do the differently written term 'Cry' and 'cry'
represent ?
2 ) how does the gene of an enzyme a-galactosidase can be used
as selectable marker? how is it better then other traditional
marker like antibiotic resistance genes?

Kunal Sharma · Accepted Answer

@Nivedita: For first part part of your question you may refer to
the answer provided by your friend
Î² galactosidase acts as a selectable marker as it
can be used for insertional inactivation which leads to selection
of recombinant DNA Recombinant colonies are white in colour because
of inactivation of Î² galactosidase while non
recombinants are blue in colour Colour makes it easy to distinguish
between recombinant and non recombinant cells
Antibiotic resistance method requires a lot of screening and
since number of recombinants is very low, this process becomes very
tedious as there is no colour difference and naked eye cannot
differentiate between recombinant and non recombinant DNA
@Archana: Good! Keep it up

1.)what do the differently written term 'Cry' and 'cry' represent ? 2.) how does the gene of an enzyme a-galactosidase can be used as selectable marker? how is it better then other traditional marker like antibiotic resistance genes?

1.)what do the differently written term 'Cry' and 'cry' represent ?

2.) how does the gene of an enzyme a-galactosidase can be used as selectable marker? how is it better then other traditional marker like antibiotic resistance genes?