what lac operon are these

Problem 14.17
For the following lac operon haploid genotypes identify the mode of transcription of operon genes and indicate determine whether the strain is lac + or lac-.

Part A
I+P+O+ Z+Y−
 
    is lac- and the genes are constitutively transcribed.
    is lac - and the genes are not transcribed.
    is lac+ and the genes are inducibly transcribed.
    is lac- and the genes are not transcribed.
    is lac + and the genes are constitutively transcribed.
    is lac + and the genes are not transcribed.
SubmitMy AnswersGive Up
Try Again; 4 attempts remaining
Part B
I+P+OC Z−Y+
 
    is lac + and the genes are inducibly transcribed.
    is lac- and the genes are constitutively transcribed.
    is lac + and the genes are constitutively transcribed.
    is lac- and the genes are inducibly transcribed.
    is lac + and the genes are not transcribed.
    is lac - and the genes are not transcribed.
SubmitMy AnswersGive Up
Part C
I−P+O+ Z+Y+
 
    is lac- and the genes are not constitutively transcribed.
    is lac + and the genes are inducibly transcribed.
    is lac- and the genes are inducibly transcribed.
    is lac + and the genes are not transcribed.
    is lac + and the genes are constitutively transcribed.
    is lac- and the genes are not transcribed.
SubmitMy AnswersGive Up
Try Again; 5 attempts remaining
Part D
I+P−O+ Z+Y+
 
    is lac+ and the genes are constitutively transcribed.
    is lac- and the genes are inducibly transcribed.
    is lac- and the genes are not transcribed.
    is lac + and the genes are not transcribed.
    is lac + and the genes are inducibly transcribed.
    is lac- and the genes are constitutively transcribed.
SubmitMy AnswersGive Up
Part E
I+P+O+ Z−Y+
 
    is lac + and the genes are not transcribed.
    is lac- and the genes are not transcribed.
    is lac- and the genes are not transcribed.
    is lac + and the genes are inducibly transcribed.
    is lac + and the genes are constitutively transcribed.
    is lac- and the genes are constitutively transcribed.
SubmitMy AnswersGive Up
Part F
I+P−O+ Z+Y+
 
    is lac- and the genes are constitutively transcribed.
    is lac- and the genes are not transcribed.
    is lac + and the genes are inducibly transcribed.
    is lac- and the genes are inducibly transcribed.
    is lac + and the genes are constitutively transcribed.
    is lac + and the genes are not transcribed.
SubmitMy AnswersGive Up
Part G
I+P+OC Z+Y+
 
    is lac- and the genes are not transcribed.
    is lac- and the genes are constitutively transcribed.
    is lac + and the genes are inducibly transcribed.
    is lac + and the genes are not transcribed.
    is lac + and the genes are constitutively transcribed.
    is lac- and the genes are inducibly transcribed.
SubmitMy AnswersGive Up