Answer:
DNA fingerprint
Explanation:
DNA fingerprinting is a technique widely used in criminal and forensic investigation. This technique aims to identify fragments of DNA, which like a fingerprint can reveal someone's identity. This is because each individual has a unique, particular and individual ANA, even the restriction zones in the DNAs are different between two different individuals.
This technique is possible because a DNA is subject to the action of restriction enzymes. When biological material is found at a crime scene, the DNA of that material is subjected to restriction enzymes that fragment the molecule into different portions. These portions can be viewed through X-rays, if marked with a radioactive marker. After this marking, the DNA fragments are subjected to agarose gel electrophoresis, revealing a kind of "barcode" that is specific to a single person in the world.
Which of these is a difference between a dna and an rna molecule?
The difference between a DNA and an RNA molecule is: A. DNA is double-stranded, whereas RNA is single-stranded. The other options mentioned are not accurate distinctions between DNA and RNA.
The key difference between DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) lies in their structural characteristics. DNA is typically double-stranded, forming the famous double helix, while RNA is single-stranded. Both DNA and RNA molecule contains nitrogenous bases and phosphate groups, but their five-carbon sugars differ; DNA uses deoxyribose, whereas RNA employs ribose.
DNA is a polymer composed of nucleotides, while RNA is also a polymer composed of nucleotides. Lastly, in terms of base composition, DNA contains thymine (T), whereas RNA replaces thymine with uracil (U). These distinctions are vital as they underlie the functional diversity and roles of DNA and RNA in genetic information storage and protein synthesis. So option A is correct.
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Which of these is a difference between a DNA and an RNA molecule?
A. --DNA is double-stranded, whereas RNA is single-stranded.--
B. DNA contains nitrogenous bases, whereas RNA contains phosphate groups.
C. DNA contains five-carbon sugars, whereas RNA contains six-carbon sugars.
D. DNA is a polymer composed of nucleotides, whereas RNA is a polymer composed of nucleic acids.
E. DNA contains uracil, whereas RNA contains thymine.
disadvantages of budding
Which important complex is is formed due to complimentary binding at the enzyme active site
A species can develop genetic diversity __________.
A: Immediately
B: over a short period of time
C: over a long period of time
D: over any period of time
I think its C or D
PLEASE HELP
WILL GIVE MEDAL
Answer: B
Explanation:
Which antibiotic would you use to determine if the recombinant dna was taken in?
PLEASE HELP ME! ASAP Should commercial fruit farmers be allowed to use ethylene to accelerate the ripening of fruit for the market? Why or Why not?
Please no bs and answer in detail thank you.
What instrument would a scientist use to take measurements in the upper troposphere
Answer:
Troposphere is the lowest most layer of Earth's atmosphere. The mean height of troposphere from the surface are 18 km in tropical regions, 17 km in middle latitudes, and 6 km in polar regions.
There exists an inversion layer called as tropopause, which acts as border between troposphere and stratosphere. The air temperature keeps on decreasing as we go high in the tropopause but remains constant throughout its thickness.
Usually, scientists use weather balloon as an instrument to take measurements in the upper troposphere.
Weather balloon also known as sounding balloon is a balloon that carries the measuring device (known as radiosonde) with it to the intended heights and stays there for long duration. The device then obtains all the measurements such as atmospheric pressure, temperature, wind speed, humidity etc and send them back to the scientists.
In addition, scientists may compare these data with those obtained from other means such as aircraft data and satellite data.
Which of these is most likely to cause light pollution?
A. Radioactive deposit
B. Family farm
C. Pavement runoff
D. Parking lot
D. Parking lot is correct
What is the difference between a chromatid and a chromosome?
a. chromatids consist of dna, whereas chromosomes consist of proteins.
b. chromosomes are always replicated, whereas chromatids are not.
c. a chromatid always consists of two linear dna molecules, whereas a chromosome always consists of just one linear dna molecule.
d. a chromatid is one half of a replicated chromosome, whereas a chromosome consists of dna wrapped around proteins in a highly organized manner?
Isovolumetric relaxation and ventricular filling (two phases of the cardiac cycle) take place during __________. view available hint(s) isovolumetric relaxation and ventricular filling (two phases of the cardiac cycle) take place during __________. ventricular systole ventricular diastole
Isovolumetric relaxation and ventricular filling, part of the ventricular diastole phase of the cardiac cycle, are crucial processes in the heart's function of pumping blood throughout the body.
Explanation:The phases of isovolumetric relaxation and ventricular filling take place during the ventricular diastole phase of the cardiac cycle. During isovolumetric relaxation, the ventricles are resting and the ventricular pressure is falling. Consequently, the blood will start filling the ventricles, which is the ventricular filling phase. Changing pressures and valve positions control these transitions between phases throughout the cycle.
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Mechanical digestion, the process of breaking down large chunks of food into smaller pieces, is important because smaller pieces of food ________.
Which of these is a function of the circulatory system?
a. removing wastes from tissues
b. delivering carbon dioxide to cells for cellular respiration
c. transferring impulses from one cell to another
d. all of the above?
Many trees and plants have green leaves in the summer that turn red, yellow and orange in the fall (autumn). Explain what happens and why it happens.
Answer:
During the fall the day gets shorter hence less sunlight this results to leaves stopping their food making process. The chlorophyll breaks down, the green color disappears and the yellow to orange color becomes visible
Explanation:
Enzymes, such as the one shown in the picture, work by fitting onto the substrate molecule like a lock-and-key action. Which statement is true, with regard to the enzyme and the substrate? A) The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme itself remains unchanged. B) The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme is also consumed in the reaction. C) The substrate reacts with the enzyme in the active site to produce a product. The enzyme, though changed, does not become a part of the product. D) The substrate reacts with the enzyme in the active site to produce a product. Both the enzyme and the substrate combine and change into a product.
The correct option is A.
Enzymes are biological catalysts that speed up the rate of biochemical reactions but they are not used up in the process. Enzymes speed up chemical reactions by lowering the activation energy of the reaction. All chemical reactions have activation energy, this is the smallest amount of energy that the reacting species must possess before they can under a chemical reaction. When an enzyme lower this energy the reaction occurs faster but the enzyme remains unchanged.
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How does the state of plasma compare to the other states of matter?
What is the difference between physical and chemical changes?
Plasma is a high-energy state of matter with ionized particles, unlike solids, liquids, and gases. Physical changes do not alter chemical composition, whereas chemical changes result in new substances.
The state of plasma differs from the other common states of matter (solid, liquid, and gas) in that plasma has variable volume and shape and consists of ionized particles with significant energy. This energy allows the electrons to escape from their atomic orbitals and move freely, which is not the case in other states.
As to the difference between physical and chemical changes, a physical change involves a change in the state or appearance of matter without altering the chemical composition, while a chemical change involves the breaking and forming of chemical bonds, resulting in new substances with different properties.
For example, melting ice is a physical change as water transitions from solid to liquid state, while burning wood is a chemical change since it converts the wood into ash and carbon dioxide.
Explain how the isotopes of an element differ. (1 point)
They each have a different number of electrons in their outermost energy level.
They each have a different number of protons in their nuclei.
They each have a different number of neutrons in their nuclei.
They each have a different charge.,
Within the cell, dna is found in the nucleus. which of the other structures within the cell listed below normally contains dna as well
1) Which feature do prokaryotic and eukaryotic cells share? A) nucleolus B) cytoplasm C) nuclear membrane D) membrane-bound organelles
Prokaryotic cell and eukaryotic cell are the two different types of cells. Eukaryotic cells are the true-cells which have some organelles which are absent in prokaryotic cells. Prokaryotic cells are the primitive cells. Thus, correct option is B.
What is the difference between Prokaryotes and Eukaryotes?Prokaryotic cell is the primitive cell. It is present in bacteria and archaea. The genetic material is not stored within a membrane-bound nucleus, it is stored in a nucleoid that floats in the cytoplasm.
Eukaryotic cell is the true cell. It is present in all the higher organisms. Eukaryotic cell is a cell which possesses a clearly visible well-defined nucleus.
The main difference between the prokaryotes and eukaryotes is that the prokaryotic cells does not have any membrane-bound organelle. Also, the nucleus does not have membrane, it is free in the cytoplasm.
Therefore, the correct option is B. The cytoplasm is the only feature which is same in both prokaryotic and eukaryotic cell.
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What was the possible function of the horns of the dinocephalian, and was this animal a herbivore or carnivore? question 4 options:?
What size shoe I wear?
When testing for hiv, a/an test produces more accurate results than the elisa test?
When testing for hiv, an Antibody screening test produces more accurate results than the elisa test.
Explanation:
An Antibody screening test is the best test available to diagnose a HIV infected person by spotting a particular protein in the infected blood sample. HIV a sexual borne disease is highly contagious and a life taker. The earlier it is been deducted through the antibody screening test and the treatment can be given to expand your life cycle.
ELISA test is a normal test that is done collecting the blood sample of the patients and when known an ELISA test is done on an individual it defers and shakes the person scary to death as it takes a minute for the test but a long wait to announce the result .
When testing for hiv, a/an Western Blot test produces more accurate results than the elisa test. Nucleic Acid Tests (NATs) and RT-PCR also offer high sensitivity and specificity for confirming HIV diagnosis. These methods are crucial for confirming ELISA results.
When testing for HIV, a Western Blot test produces more accurate results than the ELISA test. Here are the key points:
Western Blot: This test identifies specific peptides from HIV, reducing the chance of false positives due to cross-reactivity with other antibodies.Nucleic Acid Tests (NATs): These tests detect HIV nucleic acids directly, allowing for the detection of the virus before antibodies are produced.RT-PCR: This method amplifies HIV genetic material, providing high sensitivity and specificity.All these methods, especially the Western Blot and PCR, help confirm initial positive results from an ELISA test, reducing the risk of false positives.
complete question:
When testing for hiv, a/an ________ test produces more accurate results than the elisa test?
Which hypothesis is most relevant for the students experiment ?
How does the digestive system work with other systems to maintain homeostasis?
The seed coat's most important function is to provide protection for the __________.
The seed coat's most significant role is to safeguard the seed embryo. It protects the embryo from environmental stressors and controls water intake, thus signaling the start of germination.
Explanation:The most important function of the seed coat is to provide protection for the embryo within the seed. The seed coat acts as a physical barrier against various environmental stresses such, dehydration, and harmful pests which may damage the embryo. It also controls water intake by the seed; this is crucial as the uptake of water signals the start of the germination process. The hard layer of the seed coat often prevents water from entering the seed until conditions are suitable for germination.
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An important message for any nurse to communicate is that drug-induced hepatitis is a major cause of acute liver failure. the medication that is the leading cause is:
Flat and layered clouds with horizontal development are classed as
Which is the first checkpoint in the cell cycle where a cell will be caused to exit the cycle if this point is not passed? which is the first checkpoint in the cell cycle where a cell will be caused to exit the cycle if this point is not passed? g1 s g0 previous m g2?
Sweating and panting are examples of which characteristic of life
Answer:
Sweating and panting are examples of homeostasis.
Explanation:
Homeostasis may be defined as the state of an organism's body to maintain the constant internal environment. Warm blooded animals need to maintain their internal temperature.
Sweating occurs during excessive heat. The body maintains homeostasis by sweating as sweating provides cooling and bring down body temperature to the normal temperature. Panting is another way of maintaining homeostasis. Individuals take short and quick breaths in case of excessive heat.
Thus, panting and sweating are the characterstics of homeostasis of life.
Hello, people of planet earth, I need help with a question for my friend Steve in science class, here on planet Neptune it is pretty hard can you help me, please ?
Describe conjugation between two paramecium.
put it in simplest form because Steve is a bit of an idiot.
Most organisms break down sugar to produce usable energy through the process of
A)
diffusion.
B)
chemosynthesis.
C)
photosynthesis.
D)
cellular respiration.
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