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NEET 2019
Exam
NEET
Year
2019
Subject
Zoology
Chapter
Molecular Basis of Inheritance

NEET 2019 · Zoology · Molecular Basis of Inheritance

What will be the sequence of mRNA produced by the following stretch...

What will be the sequence of mRNA produced by the following stretch of DNA? 3'ATGCATGCATGCATG5' TEMPLATE STRAND 5'TACGTACGTACGTAC3' CODING STRAND

Options

  1. A3'-AUGCAUGCAUGCAUG 5'
  2. B5'-UACGUACGUACGUAC 3'
  3. C3'-UACGUACGUACGUAC 5'
  4. D5'-AUGCAUGCAUGCAUG 3'

Correct answer

B. 5'-UACGUACGUACGUAC 3'

Step-by-step solution

The mRNA will be complementary to the DNA strand, but in RNA, uracil will be present in place of thymine. If the template strand is 3′3^{\prime} - A T G C A T G C A T G C A T G - 5 then the base sequence of mRNA for the given DNA strand will be 5′−UAC5^{\prime}-\mathrm{U} \mathrm{A} \mathrm{C} GUA A G U A C G U A C - 3'.
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