Dictionary » G » Galactoside



a compound in which the H of the OH group on carbon-1 of galactose is replaced by an organic radical.

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Re: IBO 2003 questions- please help me out

C: The lactose operon of E.coli consists of three genes: lacZ encodes β-galactosidase, lacY encodes galactosidepermease which carries out lactose transport to the cell, lacA encodes galactoside-transacetylase. Lac operon is under the control of LacI (repressor), which is ...

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by tittu
Mon May 12, 2008 2:41 pm
Forum: Cell Biology
Topic: IBO 2003 questions- please help me out
Replies: 9
Views: 11211

Re: help with report on Plasmid Properties

... z gene 2) y gene, Lac y 3) a gene or Lac a Lac Z encodes for beta-galactosidase that is a lactase: cleaves lactose (the sugar). Lac y encodes for Galactoside permease that promotes the entry of lactose into the cell. lac a encodes for transacetylase, that adds an acetyl group to the lactose molecule ...

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by Biologista
Fri Oct 26, 2007 6:19 pm
Forum: Molecular Biology
Topic: Re: help with report on Plasmid Properties
Replies: 4
Views: 3736

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