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Tcecarenko [31]
3 years ago
13

blank is a point in a cladogram where a single ancestral lineage breaks into two or more descendants lineages

Biology
1 answer:
irina1246 [14]3 years ago
4 0

Answer:

NODE

Explanation:

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If thymidine dimers created by UV irradiation persist until DNA replication, DNA polymerase is likely to make a mistake reading
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Thymidine dimers is likely to be repair as soon as it is originated but if left unrepaired then it causes  frame shift mutations.

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In case of Bacterium if UV irradiation induces covalent linkage of two thymidine present adjacently to each other or on a single strand to make thymidine dimers.

These either excised via DNA repair enzyme like Endonuclease V and the proof reading activity of DNA polymerase I enzyme help in incorporation of nucleotide by taking the unmutated original strand as a template.

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Why does a cell carry out cellular respiration?
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