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Biology
Posted 7 months ago
How many reading frames are there? When a mutation occurs that changes the reading frame of a gene it is called a important that a gene be read in frame? mutation. Why is it so
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Answer from Sia
Posted 7 months ago
Answer
There are 6 reading frames in total. A mutation that changes the reading frame of a gene is called a frameshift mutation. It is important for a gene to be read in frame to ensure the correct protein is produced.
Solution
a
There are 3 reading frames for each strand of DNA, making a total of 6 reading frames (3 on the forward strand and 3 on the reverse strand)
b
A mutation that changes the reading frame of a gene is called a frameshift mutation
c
It is crucial for a gene to be read in frame because the reading frame determines the grouping of nucleotides into codons, which in turn determines the sequence of amino acids in the protein. A shift in the reading frame can result in a completely different and usually nonfunctional protein
Key Concept
Reading frames and frameshift mutations
Explanation
The reading frame is the way nucleotides in DNA or RNA are grouped into codons, each of which codes for a specific amino acid. A frameshift mutation alters the grouping, leading to incorrect protein synthesis.

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