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  • Please help! - Genetics and Evolution - NEET

Match the following genes of the Lac operon with their respective products :

(a)\; i \; gene \; \; \; \; \: \; (i)\; \beta -galactoridase

(b)\; z \; gene \; \; \; \; \: \; (ii)\; Permease

(c)\; a \; gene \; \; \; \; \: \; (iii)\; Repressor

(d)\; y \; gene \; \; \; \; \: \; (iv)\; Transacetylase

Select the correct option.

     

  • Option 1)

    (a)\; \; \; \; (b)\; \; \; \; (c)\; \; \; \; (d)

    (i)\; \; \; \; (iii)\; \; \; \; (ii)\; \; \; \; (iv)

     

     

     

  • Option 2)

    (a)\; \; \; \; (b)\; \; \; \; (c)\; \; \; \; (d)

    (iii)\; \; \; \; (i)\; \; \; \; (ii)\; \; \; \; (iv)

  • Option 3)

    (a)\; \; \; \; (b)\; \; \; \; (c)\; \; \; \; (d)

    (iii)\; \; \; \; (i)\; \; \; \; (iv)\; \; \; \; (ii)

  • Option 4)

    (a)\; \; \; \; (b)\; \; \; \; (c)\; \; \; \; (d)

    (iii)\; \; \; \; (iv)\; \; \; \; (i)\; \; \; \; (ii)

Answers (1)

best_answer

 

The lac operon -

In lac operon, a polycistronic structural gene is regulated by a common promoter and regulatory genes. 

- wherein

Such arrangements are very common in bacteria and is referred to as operon. 

 

 

 

(a)  i\; gene codes for Repressor protein

(b)  z\; gene codes for \beta-galactosidase

(c)  a\; gene codes for Transacetylase

(d)  y\; gene codes for Permease


Option 1)

(a)\; \; \; \; (b)\; \; \; \; (c)\; \; \; \; (d)

(i)\; \; \; \; (iii)\; \; \; \; (ii)\; \; \; \; (iv)

 

 

 

Option 2)

(a)\; \; \; \; (b)\; \; \; \; (c)\; \; \; \; (d)

(iii)\; \; \; \; (i)\; \; \; \; (ii)\; \; \; \; (iv)

Option 3)

(a)\; \; \; \; (b)\; \; \; \; (c)\; \; \; \; (d)

(iii)\; \; \; \; (i)\; \; \; \; (iv)\; \; \; \; (ii)

Option 4)

(a)\; \; \; \; (b)\; \; \; \; (c)\; \; \; \; (d)

(iii)\; \; \; \; (iv)\; \; \; \; (i)\; \; \; \; (ii)

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