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Question
Biology
Posted 10 months ago
A certain allele of a VNTR locus has the following sequence:CCTAGCCTAGCCTAG. In the space below, write out the sequence of a different allele of this same locus.
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Answer from Sia
Posted 10 months ago
Answer
CCTAGCCTAGCCTAGCCTAG
Solution
a
VNTR alleles: Variable Number Tandem Repeat (VNTR) loci are regions of DNA where a short nucleotide sequence is organized as a tandem repeat. Different alleles of a VNTR locus have a different number of repeats of this sequence
b
Allele variation: Given the sequence CCTAGCCTAGCCTAG, a different allele at the same locus could have more or fewer repeats of the CCTAG sequence. For example, adding one more repeat would give the sequence CCTAGCCTAGCCTAGCCTAG
Key Concept
VNTR Allele Variation
Explanation
Different alleles at a VNTR locus vary by the number of repeats of a short nucleotide sequence.
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