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27 August, 12:37

Two chromosomes have the following segments, where - represents the centromere: K L M • N O P Q R S T U V • W X Y Z What type of chromosome mutation would result in the following chromosomes? K L M • N O P Q R S T U V • W Z

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  1. 27 August, 13:03
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    deletion

    Explanation:

    The type of chromosome mutation that will make the chromosome segment K L M • N O P Q R S T U V • W X Y Z to become K L M • N O P Q R S T U V • W Z is deletion of nucleotide bases.

    Mutation is generally defined as a change to the DNA sequence of an organism and this can happen by outright deletion of one or more nucleotide bases, insertion of new bases, inversion of base sequence or substitution of one or more nucleotide bases with another.

    Deletion is the outright removal of segments of chromosome or DNA sequence.

    In the segment K L M • N O P Q R S T U V • W X Y Z, the removal of the two nucleotides 'XY' will result in the segment K L M • N O P Q R S T U V • W Z.

    Hence, the type of chromosomal mutation is deletion of segments.
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