If a DNA strand has a base sequence TCA, its complementary strand must be?

Assessment: JAMB UTME - Biology - 2021 Subject: Biology

Question 1 Report

If a DNA strand has a base sequence TCA, its complementary strand must be?
Answer Details
The complementary strand of a DNA strand with base sequence TCA is AGT. In DNA, each nucleotide base pairs with a specific partner: adenine (A) with thymine (T) and guanine (G) with cytosine (C). The base pairing rules dictate that the complementary strand of a DNA strand with base sequence TCA would have a base sequence of AGT, because adenine (A) pairs with thymine (T) and guanine (G) pairs with cytosine (C). Therefore, the correct answer is AGT.
Read lesson note on DNA Structure And Replication, RNA Transcription (WAEC)
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