Biology Help, Please?

1) Which of the following is correct about a codon? IT


a) conists of two nucleotidess


b) is the basic unit of the genetic code


c) catalyzes RNA synthesis


d) may code for the same amino acid as another codon


e) consists of discrete amino acid regions





2) Where is the attachment site for Rna polymerase?


a) structural gene region


b) inititation region


c) operator region


d) regulator region


e) promoter region





3) What are coding segments of a stretch of eukaryotic DNA called?


a) exons


b) codons


c) replicons


d) transposons


e) intorns

Biology Help, Please?
1. D


2. E


3. A
Reply:1. D.











2. E (When RNA polymerase bind to the promoter of a DNE gene segment transcription is intiated.





3. A.