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

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.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

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