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mafiozo [28]
2 years ago
8

How is mitochondrial DNA (mtDNA) typing used in forensic science?

Biology
2 answers:
Pepsi [2]2 years ago
5 0
MtDNA is a genome inside the mitochondria outside the cell's nucleus 
valuable tool used to get the source of dna from small or damaged biological samples <span />
sineoko [7]2 years ago
5 0

Answer:

The crime scene has many evidences which can help to identify the criminal. The DNA sample that is found at the crime scene is matched with the unknown DNA.

This is the method by which the  Mitochondrial DNA can be used for knowing the criminal.

The unknown sample of DNA is matched with the sample of DNA after amplification. The amplified sample might match with the sample or might not match with the unknown sample.

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Which substance can enter a cell by diffusion without having to be digested
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The answer is water. It is mainly absorbed in the ileum and re absorbed in the colon. But note that not all water you take in is absorbed, as the faeces is wet.
4 0
2 years ago
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Loss of biodiversity matters not only with regard to mammals or other vertebrates, but also microbes. What statement below would
Romashka [77]

Answer:

B. Microbes may produce unique proteins useful in genetic research

Explanation:

Biodiversity refers to the diversity of living beings present on Earth. The biodiversity is a very important component of the ecosystem as these living organisms are interlinked with each other. Therefore, the loss of biodiversity will affect the ecosystem.

When we look at the biodiversity a layman considers the living organisms which can be seen with eyes but the diversity also exists at the level of the micro-organisms.

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Thus, Option-B is correct.

8 0
2 years ago
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Aleks04 [339]
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A sample of well water is tested for its bacterial content in a plate count assay. A one-milliliter sample of the water is dilut
Sholpan [36]

Answer:

The original water sample contains 830,000 cells per milliliter.

Explanation:

A sample of well water is tested for its bacterial content in a plate count assay. A one-milliliter sample of the water is diluted in a 1:10 dilution series. One milliliter of the fourth dilution tube is plated in a pour plate. After incubation, the plate has 83 colonies, indicating that the original water sample contained 830,000 cells per milliliter.

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Q. A person’s blood glucose level fluctuates during the day, asrepresented in Figure 1. Two hormones, insulin and glucagon,are di
Minchanka [31]

Answer:

If the person has another meal after 5 pm, the glucose level in the blood will increase, and the insulin level too.

Several hours after the meal, the glucose levels will decrease, and the glucagon levels will increase.

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When a person ingests another meal after 5 p.m, the glucose levels in the blood will increase, as the body does not need all that glucose right now the insulin levels in the blood will increase to store glucose for later. The glucagon levels after a meal are very low because the aim is to store glucose not use it.

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