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Help with introns and exons please!

Biostudent510

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10 years ago

Help with introns and exons please!

I really have no idea how to go about thinking about this problem. Is it really as hard as it looks, or is it more simple? I am thinking it might be alternative splicing or exon shuffling but I really do not know. Here is the problem:

A human gene was initially identified as having three exons and two introns. The exons are 456, 224, and 524 bp, whereas the introns are 2.3 kb and 4.6 kb. Surprisingly, this gene is found to encode not one but two mRNAs that have only 224 nucleotides in common. The original mRNA is 1204 nucleotides, and the new mRNA is 2524 nucleotides. Explain how this one region of DNA can encode these two transcripts. Also make sure to explain the length of 1204 and 2524 nucleotides

Would be much appreciated! Thank you.

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padre

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masterchef

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10 years ago

Thank you guys!

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padre

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10 years ago

Marking this solved then.

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Mastering in Nutritional Biology
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srigowri

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3 years ago

thanks

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