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Classification

Question 122

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Classification. Answer the questions in reference to the five processes listed below. Note that to answer these questions you need to know that the sequence of amino acids directly reflects the sequence of genes that coded for their placement.

Premises:
A small region of a protein from three species is sequenced and found to be as follows: species X is alanine, glycine, glycine, threonine, alanine species Y is alanine, glycine, threonine, alanine species Z is alanine, valine, glycine, threonine, alanine The difference in the amino acid sequence of species Y is most likely due to ____.
A small region of a protein from three species is sequenced and found to as follows: species X is alanine, valine, threonine, alanine species Y is alanine, glycine, threonine, alanine species Z is alanine, valine, glycine, threonine, alanine The differences in the amino acid sequence of species Z is most likely due to ____.
The nucleotide sequences of homologous regions of DNA of two species is AATGCCCCGTTA and AATGCCCCGCTTA. If this is not the result of a nucleotide base-pair addition, then it is most likely the result of ____.
Homologous sets of genes ABCDEF and AEDCBF are located on homologous chromosomes. Crossing over between them is suppressed because of ____.
Homologous sets of genes ABCDEF and aBCdEF are located on nonhomologous chromosomes. Crossing over between them is suppressed because their locations are the result of ____.
Responses:
an addition.
an addition
a translocation
a gene duplication
a deletion
a deletion.
a translocation.
an inversion.
an inversion

Correct Answer:

an addition.
an addition
a translocation
a gene duplication
a deletion
a deletion.
a translocation.
an inversion.
an inversion
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