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3 years ago

Question 7

Biology

1 answer:

pogonyaev3 years ago

8 0

Answer: Additional features required to make Consumer version of the gene database user-friendly includes:

• The access of these databases should be able to maintain the privacy of it users at all times and more safety measures should be included.

•Datas should not be difficult to learn or understand (keep it simple)

• Data redundancy should be maintained.

Explanation: Consumer version of the gene database is a public database which provides access to people about their genetic information without involvement of healthcare provider or other services.

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You walk up to the crime scene. A dead body is lying on the bank of the river, just a few miles outside of the city. There is a

vlada-n [284]

Answer: 1.

As the first responder, you should:

Explanation:

Protect the crime scene.

This means that the first responder should protect the public and the crime scene and also control the changes made to the crime scene to the best of their ability.

Protection of the public means the evacuation of the public from the crime scene to a safer area.

The crime scene should be protected against evidence distortion.

The control of changes made to the crime scene maintains the original evidence present at the crime scene.

Answer:

Fire arm safety measures shall be taken

The gun should not be transported by placing a pencil in the barrel or inside the trigger guard.

There shall be documentation of the location of the gun.

Photos of the location of the gun should be taken.

There after the gun shall be retrieved from the river safely.

Since the gun shall be wet at the time of collection, it shall be kept in a plastic bag.

The gun shall then be transported to the evidence receiving area.

The gun should not be held in the plastic bag for more than two hours since this could lead to the growth of microorganisms which can destroy evidence.

Answer:

Things to keep in mind

Fire arm safety mechanisms should be put in place.

Evidence packed in plastic material should not be held in the packing material for more than two hours.

Only large quantities of dry powder should be collected and stored in plastic bags.

Any items which may cross contaminate each other must be packaged separately to avoid evidence contamination

The containers should be closed and secured to avoid the mixture of evidence during the transportation process.

Each container should have:

The collecting person's initials

Date and time it was collected

Complete description of the evidence and where it was found

The investigating agency's name and their file number.

Answer

Bullets from near the body of the victim should:

Be packaged separately and placed in paper envelopes or small cardboard pillboxes.

Handled carefully to prevent alter of evidence such as fingerprints.

The bullets have to be submitted to the crime lab for identification of any evidence present on them that could help in investigation.

Be kept safe and separate from the gun.

The container should be labeled to warn that the contents are precautions should be taken to prevent anyone from being injured.

Answer:

The gun and bullet might help us out in finding out:

The fingerprints of the user: The gun can be checked to retrieve the fingerprints of its handler if any.

The bullet cartilages shall reveal the owner of the bullets, this shall lead to the identification of a suspect.

Blood, hair that might be found on the gun and bullets might help in DNA analysis. This shall in turn lead us to a suspect.

The guns registration number shall lead us to the owner of the gun used thereby the suspect in the crime.

Answer:

The officer who arrested Oscar Pistorius on the night Reeva Steenkamp was killed last year testified Friday that police at the crime scene mishandled evidence, including a ballistics expert who handled the murder weapon without gloves.

This in turn led to confusion in evidence of the case.

The police should have instead used gloves in handling the pistol at the crime scene.

This would have prevented the intoxication of evidence.

Explanation:

6 0

2 years ago

In a multi-paragraph essay, explain how the activity of individual neurons enables you to perform a simple action like answering

maria [59]

There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism's body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

3 0

3 years ago

Contrast the major differences between the organization of DNADNA in viruses and bacteria versus eukaryotes. Drag the appropriat

telo118 [61]

Answer:

Quantity, information content, packing and replication of chromosome.

Explanation:

Quantity, information content, packing and replication of chromosome are the major differences that is present between the organization of DNA in viruses and bacteria as compared to eukaryotes. The quantity of DNA in bacteria and virus is less than eukaryotes. In virus and bacteria, DNA is arranged into a single circular chromosome while on the other hand, in eukaryotes, DNA is arranged into several linear chromosomes.

3 0

2 years ago

Is the breakdown of glucose in cellular respiration exergonic or endergomic

lutik1710 [3]

The breakdown is exergonic. The net release of energy and heat is greater than what was put in.

Please brainliest me if this helped; trying to level up!

7 0

3 years ago

Read 2 more answers

Which example is an organism?

ss7ja [257]

The answer is A.
Why: The heart is part of an organism, so that doesn't exactly count. Soil is not alive, and neither is clay. Therefore, Bacteria must be it. Bacteria is a living thing, and can function by itself.

5 0

3 years ago