On a corpse, there are beetles, cockroaches, and ants, which is the correct pmi? postmortem interval (days) | insects present | 0-3 | blowflies 4-7 | fly larvae and beetles 8-18 | ants, cockroaches, beetles, and flies 19-30 | beetles and mites 31+ | none a) 8-18 days b) 0-3 days c) 19-30 days d) 4-7 days

The correct answer is option A.

Explanation:

Postmortem interval is defined as the time elapsed since the person died.In order to estimate the time since death experts carefully studies the breeding of insects on the dead body of the person .

According to question , on a corpse there are beetles , cockroaches and ants.

According to table given ,:

The correct PMI is 8 - 18 days because beetles, ants and cockroaches all are present on a corpse.

Hence ,correct answer is option A.

you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

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