Answered

At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

EOC Biology. 
A strand of DNA contains the sequence GGC-CAT. What is the complementary strand of mRNA for this sequence? Please help


Sagot :

CCG-GUA :) (because its an mRNA strand it can't have the amino acid Thymine or (T) so we replace it with a U.
GGC-CAT - strand of DNA
 xxx- xxx  - strand of mRNA
---------------------------------------------------------------------------
The first, let's see what connect with what:
when we talk about DNA and complementary strand of DNA:
guanine connects to cytosine (and vice versa)
thymine connects to adenine (and vice wersa)

when we talk about DNA and complementary strand of RNA:
guanine connects to cytosine (and vice wersa)
adenine (in DNA) connects to uracil (in RNA)
thymine (in DNA) connects to adenine (in RNA)
-----------------------------------------------------------------------------------------------
GGC- CAT - strand of DNA
CCG- GUA - complementary strand of mRNA

complementary strand of DNA would be: CCG- GTA
(in complementary strand of RNA: thymine is replaced with uracil)

Greetings, 
n00nst00p :)