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Given the DNA strand sequence: TCA

Biology

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Answer

C

Step-by-step solution

3 steps

The base pairing rules for DNA are:

  • Adenine (A) pairs with Thymine (T)
  • Guanine (G) pairs with Cytosine (C)

Given the DNA strand sequence: TCA

  1. Find the complementary base for T.

    T pairs with A.

  2. Find the complementary base for C.

    C pairs with G.

  3. Find the complementary base for A.

    A pairs with T.

    Combining these, the complementary strand sequence is AGT.

    Comparing this with the given options:
    A. ATG
    B. GAT
    C. AGT
    D. TAG

    The correct option is C.

    The complementary strand must be C) AGT.

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