During the investigation of a murder case, the police found a few bloodstains on the body of the victim, a few bloodstains on the wall nearby, and a few hair follicles by the victim. How could this evidence be used to identify the murderer?

Answers

Answer 1
They could possibly use the hair,and get the name of the victim. Then they could search for any possible suspects in the family,or friends.
Answer 2

Answer:

This evidence can be used to identify the murderer by the technique known as DNA fingerprinting.

Explanation:

DNA fingerprinting is a molecular technique by which the individual's can be identified on the basis unique sequences by the DNA sample. The bloodstain, hairs and semen can be used as a sample for the DNA fingerprinting.

The bloodstains on the wall and hair follicles are used as a sample for the extraction of unique sequence of DNA. Variable number of tandem repeats (VNTRs) are unique DNA sequences present in the organism. Then, the blood stains fingerprinting is matched with the suspect. If DNA fingerprinting is matched, the individual is identified as murderer.

Thus, DNA fingerprinting is used to identify the murderer.


Related Questions

Should we put animals to unnatural and painful situations in the pursuit of knowledge

Answers

No if we really wanna know what animals can do is we learn and see how organism adapt to their natural environment

By _______ clusters of brain cells, scientists have discovered that damage to part of the occipital lobe results in a loss of vision.

Answers

Lesioning clusters of brain cells is a surgical way of injuring a part of the brain to regain or improve a patient's quality of life or function. Which part of the cells will depend on what disease the patient is struggling from. This might result to damaging other parts of the body, as well as losing the sense of vision.

which of the following organisms are prokaryotes? plants , animals, fungi, or bacteria ?

Answers

Prokaryotes don't have a nucleus so it's bacteria :)
Fungi and Bacteria are Prokaryotes.

A newly discovered unicellular organism isolated from acidic mine drainage is found to contain a cell wall, a plasma membrane, two flagella, and peroxisomes. based just on this information, the organism is most likely ________.

Answers

a motel eukaryote is the answer
                                                        


The result of all sin is: repentance, death, or self-determination.

Answers

Final answer:

Sin and its consequences vary depending on religious and philosophical perspectives, such as repentance, death, or self-determination.

Explanation:

The question you have asked seems to be related to the concept of sin and its consequences in various religious and philosophical traditions. Sin and its result can be understood differently depending on the religious or philosophical framework. In Christianity, sin is often seen as a transgression against God's will, and the result is repentance for forgiveness and salvation. In existentialist philosophy, sin is seen as a choice that brings responsibility and consequences, such as death or self-determination.

A similar concept exists in Hinduism, where sin is understood as bad karma that leads to negative consequences in future lives. In this belief system, individuals are responsible for their own actions and the outcome of their karma.

Therefore, the result of all sin can vary depending on the religious or philosophical perspective, and the consequences can include repentance, death, or self-determination.

A __________ examines the physiological bases of behavior in animals and humans.

Answers

A biopsychologist studies and examines the physiological basis of behavior in animals and humans. They analyze how the brain, neurotransmitters, and other different aspects of our biology influence our behaviors, thoughts, and feelings.

Apart from direct amphibian-to-amphibian contact, what is the most likely means by which the zoospores spread from one free-living amphibian to another?

Answers

The most likely means by which the zoospores spread from one free-living amphibian to another is via the flagella. The flagella is a tail-like structure on zoospores that helps them to move.

Because most plants are able to undergo photosynthesis they do not

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Plants have access to the resources they need to carry out photosynthesis, so they do not need to use chemosynthesis, which is a process that is helpful for organisms such as deep sea plant life that utilizes chemicals rather than sunlight and CO2.

Van der waals interactions may result when ________.

Answers

Van der Waals interactions may result when electrons are not symmetrically distributed in a molecule. Van der Waals forces, in physical chemistry are essentially associated with the name of a Dutch researcher Johannes Diderik van der Waals and indicate the separation of dependent interactions among particles and atoms.

Final answer:

Van der Waals interactions may result when there are weak attractions or interactions between molecules caused by slightly positively charged or slightly negatively charged atoms.

Explanation:

Van der Waals interactions may result when there are weak attractions or interactions between molecules caused by slightly positively charged or slightly negatively charged atoms. These interactions occur due to temporary partial charges that form when electrons in the electron cloud around the nucleus move about unevenly.

This results in fluctuating dipoles that can induce corresponding dipoles in neighboring atoms or molecules, creating an attraction known as London dispersion forces. Additionally, polar molecules can have permanent dipole-dipole interactions, which are a type of Van der Waals force.

These interactions are essential in biological systems, especially in contributing to the three-dimensional structure of proteins which is vital for their function. While they are weaker than other types of chemical bonds, such as ionic, covalent, and hydrogen bonds, Van der Waals interactions play a significant role in the properties and structure of many compounds.

A water molecule is polar because there is an uneven distribution of _____ between the oxygen and the hydrogen atoms

Answers

... of the electrons

According to ChooseMyPlate teenagers should exercise for 90 minutes daily, two times each day.
A. True
B. False

Answers

The answer you are looking for is A. True.
Reason: When it comes to using calories, the more you weigh the more you will use. One slice of bread and two large bagels equal one serving.

I hope this helps! :>

A health problem not associated with low intake of fruits and vegetables is _____

Answers

A health problem that is not associated with low intake of vegetables and fruits is cataracts. A cataract is a health problem concerning the eye in which it makes the vision more blurry and more cloudy and the cause of this either from smoking, eye injury, medications, obesity, high blood pressure, sun light exposure and even the increasing of age.

A health problem not associated with low intake of fruits and vegetables is obesity.

Obesity is caused by consuming excess calories and leading a sedentary lifestyle.

It is not directly linked to low fruit and vegetable intake.A health problem not associated with low intake of fruits and vegetables is obesity. Obesity is primarily caused by consuming excess calories, particularly from high-fat and high-sugar foods, and by leading a sedentary lifestyle. While a diet low in fruits and vegetables can lead to various health issues such as cardiovascular disease, cancer, and strokes, obesity results from overeating and poor dietary patterns unrelated to fruit and vegetable intake.

Two organic functional groups in a phospholipid molecule

Answers

Phospholipids are molecules that contain lipids and a phosphate group. This is usually found on the lipid bilayer which composes the cell membrane. Cell membrane is an outer covering of the cell which helps regulate the passage of different chemicals and molecules.

Two functional groups

1.       Glycerol

2.       alcohol

Neurons that carry information away from the central nervous system are called ________ neurons.

Answers

Neurons that carry information away from the central nervous system are called motor (or efferent) neurons.

In living things, most chemical reactions occur near pH 7, and changes in pH do not normally occur. Describe how buffers maintain a pH of 7 in the human body.

Answers

3 systems in the human body work together to regulate the ph. Acid base balance, chemical buffer like bicarbonate,respiratory, lungs regulate the co2 in the body and the urinary system keep the body at about 7.3, only a very small deviation is allowed, 7.5. any higher the person goes through acidosis, which is life threatening.

Answer:

Buffers usually consist of a weak acid and its conjugate base; this enables them to readily absorb excess H+ or OH–, keeping the system's pH within a narrow range. Maintaining a constant blood pH is critical to a person's well-being.

Explanation:

Running water, while occurring infrequently in deserts, _____.

Answers

does most of the erosional work

Running water, while occurring infrequently in deserts, does most of the erosional work.

Running water is the water that flows from water sources such as oceans, streams, rivers, including rain water which transports weathered rocks and other particles. Running water is the most significant agent of erosion. Erosion is a physical process caused by the action of water or wind, and it involves the wearing away of the earth’s surface by removing soil, rock, or other substances from one area on the earth, and moving it to another area.


Give some examples of rocks that would be formed through the process depicted in the figure above.



Answers

Some examples are slate and gneiss.











Answer:

mica or chlorite, gneisses and other coarse-grained rocks

Explanation:

This process of rock formation is called as foliation. In foliation, when pressure is applied the rock minerals which are disoriented gets aligned in a particular direction and thus leads to formation of a new organized planar rock form. This is  a common  process that occurs in sheety mineral such as mica or chlorite, gneisses and other coarse-grained rocks

Mr. randolph has multiple sclerosis (ms). he experiences muscle weakness, loss of coordination and speech, and visual disturbances that result from the slowdown or interruption of neural transmission. the cause of these symptoms probably involves the degeneration of his _____.

Answers

Final answer:

The cause of Mr. Randolph's symptoms probably involves the degeneration of his myelin sheaths in multiple sclerosis (MS), an autoimmune disease where the immune system attacks the myelin in the central nervous system. This leads to impaired signal transmission and various neurological symptoms.

Explanation:

The cause of Mr. Randolph's symptoms probably involves the degeneration of his myelin sheaths.

The myelin sheaths surround the nerve fibers and play a crucial role in signal transmission in the nervous system. When the myelin sheaths are damaged or destroyed, as in the case of multiple sclerosis (MS), signal transmission is impaired, resulting in symptoms such as muscle weakness, loss of coordination and speech, and visual disturbances.

The degeneration of myelin sheaths in MS is typically caused by the body's own immune system attacking the myelin in the central nervous system. This autoimmune reaction leads to inflammation, demyelination, and disruption of neuronal signaling.

Which cells are considered excitable cells because they are able to produce electrical signals?

Answers

These are excitable and action potential cells, because when they receive a stimulus they activate an action potential, these stimuli are electrical, chemical, mechanical and photonic. The action potential changes rapidly in the membrane potential in response to a stimulus and returns a resting potential. The action potential has several stages, and its main characteristics are that nothing is produced or produced when generated is maintained and propagated, the time of the voltage-dependent channels remain open. The types of the action potential are spike potential, plateau potential, potential and rhythmic potentials.

A person can eat when hunger is absent because:​
a. ​the hypothalamus signals availability of food in the environment.
b. ​the hypothalamus monitors the availability of nutrients.
c. the stomach intensifies its contractions and creates hunger pangs.​
d. ​the conscious mind of the cortex can override body signals.
e. the digestive tract sends messages to the hypothalamus.

Answers

The answer of your question is
D. The conscious mind of the cortex can override body signals.

A person can eat when hunger is absent because  ​the conscious mind of the cortex can override body signals. The outermost layer that covers your cerebrum is called the cerebral cortex. The largest part of your brain is called your cerebrum. Your brain is divided into two halves, or hemispheres, by your cerebrum.

Regarding both sensory and motor function, specific thalamic relay nuclei communicate with the cerebral cortex. As a result, it is believed that the thalamus, with its numerous nuclei connections, is in charge of all individual consciousness contents.

Learn more about the cerebrum cortex, here:

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How many variables are tested in any controlled experiment?

Answers

there are 3 controlled variable
2 variables the independent variable and the dependent variable

The "milk" in Milkweed is really _________.
Select one:
a. a byproduct of photosynthesis
b. sugar water
c. fat
d. latex

Answers

cardenolide toxin,and latex fluid.answer D

Which kind of cells can become any type of cell in the body ?

Answers

For a discussion of the different kinds of stem cells, such as embyronic stem cells, adult stem cells, or induced pluripotent stem cells, see Stem Cell Basics. Pluripotent stem cells can give rise to any type of cell in the body except those needed to support and develop a fetus in the womb.

The practice of _____ was an early approach to explaining the functions of the brain that involves analyzing the pattern of bumps on a person's skull.

Answers

The answer in the space provided is phrenology. This is an approach of studying the skull of a human that will contribute into studying the person’s mental abilities with the use of the size and shape the skull has provided.

Phrenology

The practice of phrenology was an early approach to explaining the functions of the brain that involves analyzing the pattern of bumps on a person's skull.

Phrenology is a scientific concept that explains how the shape of a person’s skull is associated with his character. This concept was started by the anatomist Franz Joseph Gall in the early 1790s. Phrenology involves examining the structure or pattern of unevenness (bumps) on an individual’s skull to determine intellectual aptitudes and character traits of the person. In the mid-19th century, phrenology was discredited and its practice was later stopped.

A substance needed to convert an inactive form of an enzyme to an active form is called what

Answers

A substance needed to convert an inactive form of an enzyme to an active form is called a Coenzyme

what happen to matter if we add or take away energy?

Answers

If energy is added or subtracted, a state change might occur. However, there will not be a net addition or subtraction of matter: matter is always conserved even through state changes. This can be seen when water freezes or vaporizes, depending on the beginning phase and the amount of energy applied.

Do you think glucose is being actively transported or transported by facilitated diffusion in this experiment?

Answers

Glucose istransported by facilitated diffusion because no ATP was used during its transport.

Which is a difference between bacteria and viruses that showed that bacteria are living organisms and viruses are not?

Answers

The difference between bacteria and viruses that show bacteria are living and not viruses is that viruses, unlike bacteria, lack what is considered a living organism. For Example, viruses cannot reproduce without the help of a host, and don't use the normal way of cell-division for replication. Unlike bacteria, which can reproduce without the aid of a host.

So basically viruses don't have what it need to be a living organism, like reproducing without and host and aren't in the norm for cell-division for replication. 

1.Biomolecules

Biomolecule Elements
A C H O
B C H O and sometimes P
C C H O N S
D C H O N P

Biomolecues are essential to all living things. Which biomolecule is "A" from the above table?
A) lipid
B) protein
C) carbohydrate
D) nucleic acid


Biomolecule Elements
A C H O
B C H O and sometimes P
C C H O N S
D C H O N P

2.Biomolecues are essential to all living things. Which biomolecule is "C" from the above table?
A) lipid
B) protein
C) carbohydrate
D) nucleic acid



3.Who developed the first correct model of DNA?
A) Rosalind Franklin
B) Oswald Avery
C) Hershey and Chase
D) Watson and Crick

Answers

1. The right answer is C) carbohydrate

Lipids is not a correct answer because some like phospholipids can contain phosphorus.

IUPAC defines carbohydrates as a class of organic compounds containing a carbonyl group (aldehyde or ketone) and at least two hydroxyl groups (-OH).

They are so called because their chemical formula was based on the model Cn (H2O) p.


2. The right answer is B) protein

The structure of proteins is the amino acid composition and the three-dimensional conformation of proteins. It describes the relative position of the different atoms that make up a given protein.

Among the amino acids, 19 amino acids contain only four chemical elements: carbon, hydrogen, oxygen and nitrogen; two amino acids additionally contain a sulfur atom, and a rather rare amino acid contains a selenium atom.


3. The right answer is D) Watson and Crick

While many biologists seek to understand how DNA forms copies of itself, James Watson and Francis Crick will be interested in the shape of DNA.

At a congress in Naples, Maurice Wilkins presents the first X-ray photographs of DNA. Despite the very limited clarity of the photo, it is the regular structure of DNA that challenges James Watson ...

The photograph of Rosalind Franklin's X-ray DNA shows that this macromolecule is cross-shaped. After a year and a half of team research, Crick and Watson finally understand that this form of cross reveals that DNA is a double helix.


B. how could you label another part of the dna and repeat these tests with another component?

Answers

Final answer:

To label another part of the DNA and repeat the tests with another component, you can use techniques such as fluorescent or radioactive labeling. These techniques allow you to track and study the behavior of specific molecules or components in the DNA.

Explanation:

To label another part of the DNA and repeat the tests with another component, you can use different techniques such as fluorescent labeling or radioactive labeling. For example, fluorescent dyes or radioactive isotopes can be attached to specific molecules or components in the DNA, allowing you to track and study their behavior.

Once another part of the DNA is labeled, you can repeat the tests by subjecting it to different chemical procedures or experimental conditions. These tests can help you understand the function, structure, or interactions of the labeled DNA component.

Learn more about Labeling and repeating tests on different parts of the DNA here:

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