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schepotkina [342]
3 years ago
8

Archaeologists unearthed a human skull with a small dried fragment of the scalp still attached. They extracted a tiny amount of

DNA from the scalp tissue. How could they obtain sufficient DNA for an analysis of the ancient human's genes?A. Subject the DNA to electrophoresis.B. Use a nucleic acid probe.C. Subject the specimen to amniocentesis.D. Use the polymerase chain reaction.E. Subject the DNA to restriction enzymes.
Biology
1 answer:
puteri [66]3 years ago
5 0

Answer:

D. Use the polymerase chain reaction.

Explanation:

<em>Option A is incorrect because subjecting the DNA to electrophoresis will only identify, purify or quantify the DNA.</em>

<em>Option B is incorrect because nucleic acid probes are only useful in detecting mRNA.</em>

<em>C is incorrect because amniocentesis is just a medical procedure involving the removal of amniotic fluid for the purpose of analysis.</em>

<em>Option E is not correct because restriction enzymes will only cut the DNA at specific points.</em>

The correct option is D. Polymerase chain reaction is a procedure in molecular biology that is utilized to amplify or multiply a copy of DNA.

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A method of biological taxonomy that organizes taxa in a branching hierarchy so that all members of a given taxon share the same ancestors and defines taxa uniquely by shared traits not present in ancestral groupings.

  • Cladistics is a method of biological classification in which groups of species (or "clades") are assigned based on theories of most recent shared ancestry.
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Molecule structure is used in molecular phylogeny to shed light on an organism's evolutionary connections.

  • A so-called phylogenetic tree represents the findings of a molecular phylogenetic research. DNA, RNA, and proteins are components of all living things.
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Using anatomical features, morphological phylogenetics infers evolutionary trees. Node: A branching point when an ancestral lineage splits into two (or more) daughter lineages in an evolutionary tree.

The ability to discuss the phylogeny of fossil taxa and how they relate to modern taxa is the unquestionable benefit of morphological data. However, their strategy prevents us from addressing the situation of extinct taxa for which there is no way to gather DNA data (i.e., almost all of them).

To know more about Phylogeny please click here ; brainly.com/question/64686

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