LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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T-U-G-C-G-U-A-G
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T-A-G-C-C-T-A-C
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T-U-G-G-C-T-U-G
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T-A-G-G-C-T-A-G
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Detailed explanation-1: -Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.
Detailed explanation-2: -Answer and Explanation: The correct answer is option c because the newly synthesized strand during DNA replication is complementary to the template strand and identical to the coding strand, the other strand of the original DNA.
Detailed explanation-3: -On the 5′ carbon of its terminal sugar, the 5′ end has a phosphate group. A DNA strand with the fifth carbon within the sugar ring at its terminus is said to have a five prime end. On the 3′ carbon of its terminal sugar, the 3′ end has a free hydroxyl group.
Detailed explanation-4: -The template DNA strand and RNA strand are antiparallel. RNA polymerase always builds a new RNA strand in the 5’ to 3’ direction. That is, it can only add RNA nucleotides (A, U, C, or G) to the 3’ end of the strand.