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Given DNA: 3'-A T G A C C T T T G G G C A-5'

Biology

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Answer

5′−TACTGGAAACCCGT−3′5'-\text{TACTGGAAACCCGT}-3'

5′−UACUGGAAACCCGU−3′5'-\text{UACUGGAAACCCGU}-3'

Step-by-step solution

2 steps

  1. Design the complementary DNA strand.

    The given DNA strand is 3′−ATGACCTTTGGGCA−5′3'-\text{ATGACCTTTGGGCA}-5'.
    For complementary DNA, Adenine (A) pairs with Thymine (T), and Guanine (G) pairs with Cytosine (C). The complementary strand will run in the antiparallel direction (5′→3′5' \to 3').

    Given DNA: 3′−A T G A C C T T T G G G C A−5′3'-\text{A T G A C C T T T G G G C A}-5'
    Complementary DNA: 5′−T A C T G G A A A C C C G T−3′5'-\text{T A C T G G A A A C C C G T}-3'

    The complementary DNA strand is:

    5′−TACTGGAAACCCGT−3′\boxed{5'-\text{TACTGGAAACCCGT}-3'}

  2. Design the complementary RNA strand.

    For RNA synthesis (transcription), the DNA strand serves as a template. The base pairing rules are: Adenine (A) in DNA pairs with Uracil (U) in RNA, Thymine (T) in DNA pairs with Adenine (A) in RNA, Guanine (G) in DNA pairs with Cytosine (C) in RNA, and Cytosine (C) in DNA pairs with Guanine (G) in RNA. The RNA strand is synthesized in the 5′→3′5' \to 3' direction, using the 3′→5′3' \to 5' DNA strand as a template.

    Given DNA template: 3′−A T G A C C T T T G G G C A−5′3'-\text{A T G A C C T T T G G G C A}-5'
    Complementary RNA: 5′−U A C U G G A A A C C C G U−3′5'-\text{U A C U G G A A A C C C G U}-3'

    The complementary RNA strand is:

    5′−UACUGGAAACCCGU−3′\boxed{5'-\text{UACUGGAAACCCGU}-3'}
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