Question

A short sequence of bases on one strand of DNA is AGTCTACCGATAGT. If this sequence serves as a template for the formation of a new strand of DNA, what will be the corresponding base sequences in the new strand?
A. AGTCTACCGATAGT
B. TCAGATGGCTATCA
C. TGATAGCCATCTGA
D. GACATCGATTCGAT

Answer 1

Hint: The DNA sequence that can replicate itself during mRNA production is referred to as a "template strand." To create mRNA, the cell uses a non-coding/antisense DNA sequence as a template.
Complete step by step solution:
Adenine (A), cytosine (C), guanine (G), and thymine (T) are the four bases of DNA (T). These bases come in particular pairs (A with T, and G with C). Base pair can also refer to the actual number of base pairs in a sequence of nucleotides, such as 8 base pairs.
The nitrogen-containing bases adenine (A), thymine (T), and cytosine (C), as well as guanine (G), couple together under normal conditions. The structure of DNA is created by the binding of these base pairs. A and C form exclusive connections with T and G, respectively, within the DNA molecule. Thymine is swapped out for uracil in RNA (U).
Alternative hydrogen-bonding patterns can be seen in non-Watson-Crick base-pairing models, such as Hoogsteen base pairs, which are analogs of A-T or C-G. Base pairs are frequently used to estimate a gene's size within a DNA molecule. The sum of the base pairs is equal to one strand's number of nucleotides (each nucleotide consists of a base pair, a deoxyribose sugar, and a phosphate group). Adenine (A) will always be balanced by thymine (T) on the opposite strand in complementary strands, and cytosine will always be balanced by guanine (G) on the opposite strand. As a result, TCAGATGGCTATCA is the strand that complements AGTCTACCGATAGT.
So, option (B) is correct.

Note:
The sense strand, also known as the template strand, is the only strand that is actively employed as a template during transcription. The nonsense or antisense strand is the complementary DNA strand that is not utilized.