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zimovet [89]
3 years ago
10

The Metro Police are investigating a murder scene the killer was scratched by his victim and some of his skin cells are found un

der the victim's fingernail the police have arrested four suspects and have taken DNA samples from each of the suspects for analysis the DNA pattern generator from the killer skin cell sample found in the crime scene did not match any of the DNA's patterns of the suspects which conclusion can be drawn?
A- only one of the suspects can be ruled out

B- None of the suspects can be ruled out

C- all of the suspects cab be ruled out

D- a mistake must have been made and the test will have to be run again.
Biology
2 answers:
blagie [28]3 years ago
8 0
I'm not that sure, but I think it's D.
Elenna [48]3 years ago
4 0

Answer:

the answer is C

Explanation:

All the suspects can be ruled out!!!

                                       Hope this helpsss

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A cell is mostly made up of what substance?
denis23 [38]
Most of the cells are made of mostly Cytoplasm. It contains all the living materials in a cell except for the nucleus. This gel-like area of the cell contains the chemical needed by the cell it resembles the white part of a raw egg.
Hope this helps ^^!
3 0
3 years ago
Describe the general types of diagnostic tests used to diagnose patients infected with HIV.
GenaCL600 [577]

AIDS

This disease leads to death by weakening the immune system of the human body.  Common symptoms are related to the nervous system like dementia, anxiety, depression and insomnia.

TESTS

The tests for AIDS are discussed below.

The most common test for any disease is the blood test.  

When human body is infected with the virus, the body produces anti-bodies to combat this infection. The blood test is positive if these anti-bodies are present in the blood sample of the infection person. However, it takes time for these anti-bodies to appear in the blood stream, hence, blood test should be done at regular intervals.

The tests specifically developed for AIDS are as follow.

ELISA or Enzyme-linked immunosorbent assay

If this test is positive, this is followed by a Western Blot test. The blot test is done in order to confirm the disease.

As said before, anti bodies take time to develop. If the test is done during this phase, it will be negative despite of the presence of virus in the blood stream.

HOME

Only one home test is approved. This is called Home Access Express Test. The kit of this home test is available at pharmacies.

SALIVA

The saliva from the patient’s cheek is obtained on a cotton pad. This pad is put in a vial which is then sent to the lab for testing.  If the result is positive, blood test is done to confirm the disease.

VIRAL LOAD

As the name suggests, this test measures the quantity of virus present in the blood. This test is done to either test the presence of HIV or to track the progress of the treatment of HIV.

WESTERN BLOT

This test is done when the result of ELSA test is positive. This test confirms the disease.

All the above test if turn out negative and the patient still doesn’t recovers, this testing should be done periodically until the disease is confirmed.

6 0
3 years ago
Which of the following is an example of an adaptation that allows similar species to live in the same environment?
Andrei [34K]

Answer:

B. Both mussels and barnacles live in the tidal ecosystems.

Explanation:

Mussels are <u>small bivalve molluscs that are adapted to both marine and freshwater ecosystems</u>. Barnacles, on the other hand, <u>are arthropods that are adapted to marine ecosystems. However, both are adapted to shallow and </u><u>tidal</u><u> zones</u>.

Both organisms are small and have the capacity to live in tidal ecosystems where they thrive and play important ecological roles. For instance, barnacles are filtering organisms, which is extremely important for the food chain, and mussels filter out significant amounts of excess nutrients and metals, that is, they make the water more suitable and clean for organisms to live.

As they are both adapted to tidal ecosystems, this would be an example of an adaptation that allows similar species, in this case mussels and barnacles, to live in the same environment.

4 0
3 years ago
If a male dog has 20 chromosomes in his sperm cell, how many does he have in his body cell?
LUCKY_DIMON [66]
40 a body cell has twice the number of chromosomes than in a gamete
4 0
4 years ago
How are mature and newborn skull different regard to composition
prisoha [69]

Answer:

Explanation:

Su cabeza es proporcionalmente mucho más grande.La cabeza de un recién nacido representa aproximadamente 1/4 parte de su masa corporal, mientras que la de un adulto entre 1/7 y 1/8 parte. b) La musculatura de un bebé es muchísimo más débil que la de un adulto, especialmente en la zona cervical.

8 0
3 years ago
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