AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

STRUCTURE OF NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following would be the mRNA sequence made during transcription from the DNA sequence ATGGCTCGATCA
A
UACCGAGCUAGU
B
TACGCATUTCUTC
C
UACCGCUCACCA
D
TACGCATACAGCA
Explanation: 

Detailed explanation-1: -During transcription, the enzyme RNA polymerase (green) uses DNA as a template to produce a pre-mRNA transcript (pink). The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene.

Detailed explanation-2: -Final answer: The sequence of mRNA produced by 3’ ATCGGTTAAC 5’ template strand, 5’ TAGCCAATTG 3’ stretch of DNA in coding strand will be 3’ GUUAACCGAU 5’.

Detailed explanation-3: -Explanation: The template strand of DNA has AAA sequence, which will be transcribed to mRNA as UUU.

Detailed explanation-4: -During transcription, a piece of DNA that codes for a specific gene is copied into messenger RNA (mRNA) in the nucleus of the cell. The mRNA then carries the genetic information from the DNA to the cytoplasm, where translation occurs.

There is 1 question to complete.