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3 years ago

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

Biology

1 answer:

Rudiy273 years ago

3 0

Explanation:

<em>Mitochondrial DNA typing</em><em> </em><em>-</em>

This method is mainly used by forensic scientist who investigate crime scenes.

It involves the use of DNA from an unknown sample to match a DNA collected from a crime scene.

This method is normally used in special scenarios.

These scenarios include:

1) When the DNA is discarded.

2) When the sample does not contain nuclear DNA.

From the description above we can now answer the question as follows:

an unknown nuclear mtDNA is matched to a nuclear mtDNA found at a crime scene.

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How many dna molecules are present in a synapsed pair of homologous chromosomes?

uranmaximum [27]

Answer:

The answer is 4

Explanation:

The answer is 4 because we are talking about pairs of homologous chromosomes and there two copies are held together and they are located in the centromere.

Synapsis is two homologous chromosomes pairing. During the event of <em>meiosis </em>homologous chromosomes are being pared but then also separated because of reducing the genetic content of the resulting haploid cells.

7 0

3 years ago

at which level of biological organization does muscle tissue and nervous tissues work together to carry out a specific function?

Monica [59]

Answer:

organ level

Explanation: because multiple types of tissues are working together.

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2 years ago

An animal cell lacking carbohydrates on the external surface of its plasma membrane would likely be impaired in which function?

PilotLPTM [1.2K]

An animal cell lacking carbohydrates on the external surface of its plasma membrane would likely be impaired in CELL TO CELL RECOGNITION.
Carbohydrates have diverse functions, one of their functions is that they serve as a recognition signal at the surface of cells.
Carbohydrates located on the surface of cells enable cells to recognize and communicate with one another.

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3 years ago

Am I correct??????????

inn [45]

Yes you are correct, can you put me as brainliest PLEASEEE

5 0

3 years ago

Read 2 more answers

Jonathan used the following soil triangle to identify a sample of soil as sandy clay.

sineoko [7]

The description of soil according to Jonathan is as follows:

Mostly large grains, with a gritty texture, 45% sand, 5% clay, and 45% silt ---- Silty loam soil.
Mostly large grains, with a sticky texture, 55% sand, 40% clay, and 5% silt ----- Sandy clay soil.
Mostly small grains, with a sticky texture, 30% sand, 50% clay, and 20% silt ----- Clay soil.
Mostly small grains, with a smooth texture, 30% sand, 5% clay, and 65% silt ----- Silty loam soil.

<h3>What is Soil Texture?</h3>

Soil texture may be defined as a classification of soil on the basis of its physical appearance, texture, and properties.

In this question, the texture and composition of other soil are illustrated briefly with respect to each common soil type.

Therefore, it is well described above.

To learn more about Soil texture, refer to the link:

brainly.com/question/946875

#SPJ1

6 0

2 years ago