how many sets of primers are needed for dna profiling?

Answers

Answer 1
Primers are small snippets of DNA homologous to different regions in a target gene. For any targeted DNA gene at least two primers are necessary to delimitate a DNA variable segment targeted to be amplified.

Related Questions

A genius IQ is considered anything over 144. Let's pretend that
this is a genetic condition and that it is recessive. Genius IQ
is found in approximately 1 in 625 people worldwide (this is a
true statistic). Calculate the following:
1. The frequency of the recessive allele (genius IQ).
2. The frequency of the dominant allele (normal).
3. The percentage of heterozygous individuals (carriers).

Answers

According to the question, The percentage of heterozygous individuals (carriers). Thus, option "C" is correct.

What is the Hardy-Weinberg equilibrium theory?

The Hardy-Weinberg equilibrium theory states that the allelic frequencies in a locus are represented as p and q. Assuming a diallelic gene,  

p is the frequency of the dominant allele,  

q is the frequency of the recessive allele.

The genotypic frequencies after one generation are  

p² (H0m0zyg0us dominant genotypic frequency),  

2pq (Heter0zyg0us genotypic frequency),  

q² (H0m0zyg0us recessive genotypic frequency)

Thus, option "C" is correct.

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How is a plant cell built?

Answers

Answer:

Plant cells are eukaryotic cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae. Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or centrioles, except in the gametes, and a unique method of cell division involving the formation of a cell plate or phragmoplast that separates the new daughter cells.

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A fired worker who fakes mental harassment by his boss in order to explain his unfair treatment
o is insane
o is malingering
o is psychotic
o has a mental illness

Answers

Is psychotic and needs help

Marshall made the following table to compare the functions of physical structures in plants and animals:


Function Animal Structure Plant Structure
Provides support for the organism Skeleton
Exoskeleton Stem
Reproductive organs Testes
Ovaries Stamen
Pistil
X Skin
Fur
Feathers Waxy Covering
Bark


Which of the following should replace X?
Protect the internal organs of the organism
Protect the organism from harsh conditions
Transports water throughout the organism
Involved in reproduction of the organism

Answers

Answer:

The answer is Pistil

:}

Explanation:

in human digestion system trachea and oesophagus both connect to the
a large intestine
b stomach
c pharynx
d rectum

Answers

Explanation:

In human digestion system trachea and oesophagus both connect to the :-

b) Stomach

Answer:

b) stomach

Explanation:

In the human digestion system, the trachea and esophagus both connect to the stomach.

Nick is smiling even though he does not feel happy. After a short time he feels happier. The best explanation for Nick's change in mood is
O bottom-up processing
o facial feedback
selective encoding
O justification of effort

Answers

o facial feedback

When someone replicates a emotion, they tend to feel it

Nick is smiling even though he does not feel happy and after a short time he feels happier too. This change in mood is due to facial feedback. Therefore, the correct statement is option B.

What is the facial feedback mechanism?

Facial feedback is a psychological theory that suggests that the expression on a face of a person can influence their emotions and mood also. Therefore, when a person smiles even when they are not feeling happy, it can trigger positive emotions in the brain that change in mood.

Nick is smiling even though he is not feeling happy. Therefore, this act of smiling can trigger positive emotions in his brain and changes his mood because of the facial feedback mechanism.

However, bottom-up processing is the processing of sensory information from the environment to create a perception, while selective encoding is a process of selectively attending to and encoding certain aspects of a stimulus while ignoring others.

Therefore, Nick is smiling even though he does not feel happy and feels happy after a short time due to facial feedback.

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Which scientist argued that the mind and body were completely separate entities?

Question 14 options:

Walter Cannon


Descartes


Kurt Lewin


Hans Seyle

Answers

Answer:

Walter Cannon

Explanation:

as he came up with the theory on how to separate the mind and body

H
Animals store most of their excess energy reserves as _____
and this is explained because

Answers

Animals store the extra energy as the complex carbohydrate glycogen.

What is glycogen?

Glycogen is a polysaccharide of glucose. It serves as a form of energy storage in fungi as well as animals and is the main storage form of glucose in the human body.

The excess energy reserve as starch in case of plants and glycogen in case of animals.

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2. Explain how the distribution and availability of resources might influence population density?

Answers

Answer:

The availability of natural resources encourages a higher population density as these can be processed and used in industry and manufacturing. Regions that experience no or few natural disasters are more likely to have a lower population density as they are safer.

Which structure allows the diaphysis of the bone to increase in length until early childhood?.

Answers

Answer:

Epiphyseal Plate

Explanation:

State similarities and differences between the laboratory thermometer and the clinical thermometer

Answers

Answer:

Its simple

Explanation:

Answer: Similarities Both thermometers are used to measure temperature and both of them use mercury. Differences Clinical thermometer is used to measure human body temperature whereas laboratory thermometer is used to measure temperature of other object which has higher temperature than human body temperature.

Suppose that somite stem cells commit to their cell fates by three days post fertilization. Which result would be MOST likely in the chick embryos receiving somites transplanted in the reverse order

Answers

The organs arising from quail somites develop in the reverse order because transcriptional programs activated in the nucleus can't be reversed.

What is a Nucleus?

This is referred to as the part of the cell which is membrane bound and contains chromosomes.

The fate of the chick embryos receiving somites transplanted in the reverse order is mentioned above.

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Which are correct examples of physical (P), chemical (C), and biological (B) barriers? P: complement system; C: saliva; B: coughing P: coughing; C: saliva; B: complement system P: coughing; C: sneezing; B: complement system P: complement system; C: saliva; B: sneezing

Answers

The correct examples of physical (P), chemical (C), and biological (B) barriers is P: coughing; C: saliva; B: complement system.

What are barriers?

Barriers are the immune defence mechanisms used by the body to prevent the invasion of microorganisms from causing harm.

Examples of immune barriers include:

Physical barrier: Example is coughing

Chemical barrier: Example is saliva

Biological barrier: complement system.

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The graph below shows the number of occupied
bald eagle nesting in North America between
1960 and 2007.
Which human activity most likely had the greatest
influence on the trends shown in the graph?
A. Breeding eagles in captivity
B. Allowing the hunting of eagle predators in
national forests
C. Releasing eagles into North American forests
from other continents
D.Conservation efforts, including a ban on
certain pesticides

Answers

Answer:

This is just a guess because I can't see the graph, but I think the answer is B. Don't use this though, as it's only a guess.

Explanation:

Can you please give some example's of endangered animal's ? :<​

Answers

Answer:

axolotls and other few species of fish

giant panda (Ailuropoda melanoleuca) ...

tiger (Panthera tigris) ...

whooping crane (Grus americana) ...

blue whale (Balaenoptera musculus) ...

Asian elephant (Elephas maximus) ...

sea otter (Enhydra lutris) ...

snow leopard (Panthera uncia) ...

gorilla (Gorilla beringei andGorilla gorilla)

how many chromosomes are in the daughter cells after meiosis is completed?

Answers

Answer:

23 chromosomes

Explanation:

Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II.

Answer:23. Just take half of 46 away and there's your answer.

Explanation:

Insulin, a nonsteroid hormone, binds with a cell membrane receptor causing activation of proteins inside the cell. What would you consider insulin to be in this example

Answers

We consider insulin to be Protein activator  because it is responsible for the activation of protein inside the cell.

What is activator?

Activators are those molecules that bind themselves to a substance and increase their activity. These molecules are the opposite of inhibitors that prevent a substance from doing its function.

So we can conclude that we consider insulin to be Protein activator  because it is responsible for the activation of protein inside the cell.

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The blind mole rat is a close relative of other rats. however, mole rats live underground for their entire lives. as a result, their eyes have evolved into useless structures. presumably, mole rats will not have eyes at all in the distant future. what type of structures are the mole rats eyes?

a.
vestigial structure
b.
developmental structure
c.
homologous structure
d.
analogous structure

Answers

Answer:

A.  vestigial structures

Explanation:

Vestigial structures are those that serve no purpose in current organisms, but were useful to ancestors of those organisms.

Compare and contrast the left and right hemispheres of the brain, briefly describing their primary functions.

Answers

The Split-brain theory describes the differences between left brain and right brain characteristics, functions, and understand the dominance brain.

What is split-brain theory?

The split-brain phenomenon is caused by the surgical severing of the corpus callosum, the main route of communication between the cerebral hemispheres. The classical view of this syndrome asserts that conscious unity is abolished

The left brain handles reading, writing, and calculations. Some call it the logical side of the brain whereas The right brain is more visual and deals in images more than words. It processes information in an intuitive and simultaneous manner.

The left hemisphere controls the muscles on the right side of the body while the right hemisphere controls those on the left.

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If a researcher tried shotgun sequencing with a single chromosome from a single cell, would the process work?.

Answers

Answer: No, there would be no overlap because there is only one piece of double-stranded DNA that is fragmented.

Explanation:

Asthma is a condition that causes the airways to constrict, limiting the amount of air that can make it into the lungs. Asthma attacks are generally caused by allergens in the environment and
the overreaction of which body system?

A.Circulatory
B.Digestive
C.Integumentary
D. Immune

Answers

Answer:

immune.

the answer is D.

hope it helps you.

molecules can have each of these forms of energy except

Answers

Light energy hope that helps :)

Molecules can have each of these forms of energy except light energy. The correct option is A.

What are molecules?

A molecule is the smallest unit of a substance that keeps its content and properties. It is made up of two or more atoms that are joined together by chemical bonds.

Chemistry is built on molecules. The element symbol and a subscript indicating the number of atoms are used to identify molecules.

Single, neutral particles make up an atom. As neutral objects consisting of two or more atoms joined together, molecules are. A positively or negatively charged particle is called an ion.

There are three different kinds of molecules: atom-sized molecules, element-sized molecules, and compound-sized molecules.

Except for light energy, molecules can possess all of these types of energy.

Thus, the correct option is A.

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Your question seems incomplete, the probable complete question is:

Molecules can have each of these forms of energy, except:

A. light energy

B. Chemical energy

C. Sound energy

D. Kinetic Energy

Which process do scientists think provided Earth with an oxygen-rich atmosphere?


photosynthesis


respiration


radiometric dating


spontaneous generation

Answers

Answer:

Photosynthesis

Explanation:

Tiny organisms known as cyanobacteria, or blue-green algae conducted photosynthesis using sunshine, water and carbon dioxide to produce carbohydrates and oxygen.

23. Power equals
A.Speed plus endurance
B. Strength times speed
C. Speed times velocity

Answers

Neither, power= energy/time

How might human population growth result in a tragedy of the commons?

A. Each birth is a common resource for the population.

B. All people use natural resources to survive.

C. People are the most important resource on Earth.

D. People have more in common than they realize.

Answers

Answer:

B: all people use natural resources to survive.

Explanation:

What is thought to have caused the extinction at the end of the Cretaceous period

Answers

Answer:

To answer your question the most common belief of the mass extinction of the Cretaceous period was due to an asteroid impact.

Explanation:

Which one of the following human activities is the greatest threat to biodiversity?

A. Habitat destruction
B. Climate change
C. Introduced species
D. Pollution
E. Overharvesting

Answers

Answer:

Overharvesting

Explanation:

Too much harvest and planting causes the soil to wear down and be less useful.

Answer:

B) Climate Change

Explanation:

LOVE YOUU :)

if glucose levels get too high in our body, what diseases may occur because of it?

Answers

Answer:

Hyperglycemia or high blood glucose

Explanation:

Hyperglycemia or high blood glucose occurs when there is too much sugar in the blood. This happens when your body has too little insulin (the hormone that transports glucose into the blood), or if your body can't use insulin properly. The condition is most often connected with diabetes.

Hope I helped

:)

why photosynthesis is known as the pathway for energy

Answers

Answer:

Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die. It transforms light to chemical energy.

that's why it's called the pathway to energy.

Explanation:

hope it helps...

3. A cell with 10 chromosomes undergoes mitosis.
(b) How many chromosomes does each daughter cell have?

Answers

Answer:

In a cell with 10 chromosomes undergoes mitosis, the result are 2 daughter cells each with 10 chromosomes

Explanation:

Cells have the ability to reproduce or replicate through 2 processes:

Mitosis

Meiosis

Mitosis differs from meiosis because the final result is always

2 daughter cells

The daughter cells are identical to the mother cell and this includes the same number of chromosomes

This means in mitosis 1 cell with 10 chromosomes leads to two identical cells each with 10 chromosomes.

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