If the sequence of nucleotides in a template | vedclass

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(B) During transcription,the enzyme $RNA$ polymerase synthesizes mRNA using the $DNA$ template strand. According to the principle of complementarity,t

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$5'-UACGAAGGCCUU-3'$

Vedclass · Answer

(B) During transcription,the enzyme $RNA$ polymerase synthesizes mRNA using the $DNA$ template strand. According to the principle of complementarity,the nitrogenous bases in the mRNA are complementary to the template strand of $DNA$. In $DNA$,Adenine $(A)$ pairs with Thymine $(T)$,and Cytosine $(C)$ pairs with Guanine $(G)$. However,in $RNA$,Uracil $(U)$ replaces Thymine $(T)$. Therefore,the base pairing rule for transcription is: $A$ $(DNA)$ $\rightarrow$ $U$ (mRNA) $T$ $(DNA)$ $\rightarrow$ $A$ (mRNA) $C$ $(DNA)$ $\rightarrow$ $G$ (mRNA) $G$ $(DNA)$ $\rightarrow$ $C$ (mRNA) Given $DNA$ template strand: $3'-ATGCTTCCGAAT-5'$ Complementary mRNA sequence: $5'-UACGAAGGCCUU-3'$ Thus,the correct option is $B$.

If the sequence of nucleotides in a template strand of $DNA$ is $3'-ATGCTTCCGAAT-5'$. Write the sequence in the corresponding region of the transcribed mRNA.

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