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dedylja [7]
3 years ago
5

Describe one of the main challenges in extracting DNA from cells found at a crime scene.

Biology
2 answers:
Dominik [7]3 years ago
6 0

Answer:

There can be many challenges while collecting DNA from the cells that is found at the crime scene.

One of the main problem is the minute amount or less amount of DNA that is found at the time of crime scene. this small amount is not sufficient for the reactions that is carried out.

Even PCR needs a detectable amount of DNA for the reactions to take place. The DNA that is found is contaminated most of the time. It is made of protein which gets denatured and then it becomes useless.

Serhud [2]3 years ago
3 0
Not enough DNA, starts to break down when exposed to environmental factors like change in temperature
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5 0
3 years ago
Both insects and roundworms exhibit ______, whereas sponges, snails, and leeches do not.
erik [133]
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3 years ago
Most respiration occurs in oragnelles called
frozen [14]

Answer:

mitochondrion

Explanation:

8 0
3 years ago
Es
True [87]

Answer:

Ribosomes,cytoplasm ,cell wall and circular DNA could be used to justify that the cell is a prokaryote.

Explanation:

Ribosome  Ribosome is present in both prokaryotic cell and eukaryotic cell.The prokaryotic cell 70S ribosome which contain 2 subunits the larger subunit is 50S and the smaller subunit is 30s

Cell wall  Prokaryotes such as bacterial cell contain cell wall.Cell wall  of bacteria contain various carbohydrates which are crosslinked with peptides resulting in the formation of peptidoglycan.

Cytoplasm The cytoplasm of prokaryotic cell such as bacteria contain ribosomes,chromosome and extracellular genetic material called plasmid.

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5 0
3 years ago
Read 2 more answers
When DNA is copied sometimes a new incorrect base pairing appears within the structure of a new DNA molecule replacing original
statuscvo [17]
I believe you meant to say is this mistake called a base pair and if that is your question then no. it would be called Mutation. But you can double check that answer.
6 0
3 years ago
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