Answers
Answer:
A
Explanation:
Gel electrophoresis is an amazing technique that allows for DNA separation based on size (as in, length). Using electricity (and keeping in mind that DNA has a negative charge because of the phosphate groups), the shortest pieces will migrate the farthest.
So we can tell that the pieces are in ascending order of size. 4>3>2>1, in length.
A. Strand 1 is the smallest.
Answer:Given results of gel electrophoresis shows that strand 1 is smallest. The pieces are arranged in ascending order of size 4>3>2>1 . Thus,option A is correct.
Explanation:
What is Gel electrophoresis?
Gel electrophoresis is a laboratory technique used to separate mixture of DNA ,RNA or protein according to their molecular size.
The gel used in this technique is composed of polyacrylamide or agarose.
The main application of gel electrophoresis has been in the seperation of molecules and in restriction mapping.
The main advantage of gel electrophoresis is its capability to
simultaneously separate various samples in one round.
Therefore, strand 1 is the smallest according to the result of gel electrophoresis shown in figure. Thus, option A is correct.
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Related Questions
What happens during G2 phase?
Answers
Answer:
Gap 2 (G2): During the gap between DNA synthesis and mitosis, the cell will continue to grow and produce new proteins.
Answer provided by CELLS Alive
Chemical equilibrium results if_____.
Answers
Answer:
what he said ^
Explanation:
i think...
how much is 300000 *
Answers
Answer:
300,000
Explanation:
It is 30% of a million and quite a bit of money that can be used to buy a house.
Answer:
300000
Explanation:
lol easyyy
If you have a concern about fluoride in your drinking water, how do you get more information?
Answers
Answer:
Contact the Centers for Disease Control and Prevention (CDC).
Explanation:
is the relationship linear,exponential, or neither? (9,13) (14,16) (19,19) (24,22)
Answers
Answer:
Linear
Explanation:
If you were to put this in a table, the rate of change would be constant
Shortly after a stream dried up, you noticed a change in the field mouse population coat color variation. When the stream was flowing, there were two populations, one with darker coats and one with lighter coats. After the stream dried up, mice with darker coats were being born into the lighter coat population and vice versa.
a. True
b. False
Answers
Answer:
a. True
Explanation:
When the stream dried up darker coat mice were seen into the lighter coat population and vice versa because of the natural selection process.
Mice change their coat color by adapting the changes in the stream flow and evolve their coat either dark or light that provides camouflage so predators won’t see them and they are able to survive in the environment. Mice have the advantage of surviving long and they are able to pass their genes to the offspring.
Hence, the given statement is true.
What are examples of harmful mutations
Answers
Answer:
One example of a harmful mutation is an animal's different coloring than others in its species. If a deer was albino, it would have a much harder time blending in, escaping predators and most likely have trouble finding a mate.
Explanation:
A receptor is a structure that detects stimuli. The stigma (eyespot) of Euglenoids detects ____, assisting with phototaxis. A. light intensity and direction B. vibrations C. chemicals D. sound frequency and direction E. temperature change
Answers
Answer:
The correct answer is option A, that is, light intensity and direction.
Explanation:
A photoreceptive organelle witnessed in the motile or flagellated cells of unicellular photosynthetic species like euglenoids and green algae is known as the stigma or the eyespot apparatus. It permits the cells of the organism to detect the intensity and direction of the light and react towards it.
This assists the organisms to either swim away from the light known as negative phototaxis, or to swim towards it known as positive phototaxis. The eyespots are the basic and the most typical eyes witnessed in nature. The eyespots comprise bright areas or orange and red granules of pigment and photoreceptors.
Why do sex-linked traits follow different patterns of inheratance than other traits
Answers
Answer:
Males and females have different sex chromosomes.
Explanation:
Sex Linked trait is controlled by the chromosomes while other traits are controlled by autosomes. The autosomal cells and traits have a constant characteristics in a human being. The chromosomal cells however vary. The male chromosome XY is different from the female chromosome XX.
This is the reason why sex-linked traits follow different patterns of inheratance than other traits as a result of the Males and females having different sex chromosomes is valid.
which would provide the body with the most energy ? a.forming bonds between to amino acids b.braking the bonds in a monosaccharide c.braking a single carbon bond d.creating bonds to form a carbohydrates
Answers
Answer:
d creating bonds to form a carbohydrate
Explanation:
ASAP PLEASEEE HELP ME
Remember monomers and polymers? DNA is what type of polymer?
A.) Protein
B.) Nucleic Acid
C.) Lipid
D.) Carbohydrate
Answers
Answer:
polynucleotide "carbon" sugar so I would say B or D
Explanation:
What is one reason why we study properties of minerals?
SCIENCE
Answers
Answer:
To identify minerals.
Explanation:
That way, we can know which minerals react to which tests.
-Bella,
BrainlyBluebell
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НОН
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но-н
нЩн
нон
HHH
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List the number of each atom in the formulas above:
Н
О
0
Answers
Answer:
According to the diagram above, there are 8 Hydrogen, 1 Oxygen and 3 Carbon .
Answer:
3 carbons
Explanation:
Building large manufacturing facilities can affect
ecosystems by increasing the
Answers
Answer:demand for resources such as fossil fuels
Explanation:
Building large manufacturing facilities can affect ecosystems by increasing the demand for resources such as fossil fuels.
Thus, The breakdown of buried, carbon-based organisms that perished millions of years ago produces fossil fuels. They produce deposits rich in carbon, which are taken out and burned to provide energy.
They presently provide about 80% of the world's energy and are non-renewable. A vast array of items, including plastic and steel, are also produced using them. Coal, oil, and gas are the three forms of fossil fuels.
Global warming is mostly caused by emissions from fossil fuels, according to the Intergovernmental Panel on Climate Change (IPCC). 89% of the world's CO2 emissions in 2018 came from industry and fossil fuels.
Thus, Building large manufacturing facilities can affect ecosystems by increasing the demand for resources such as fossil fuels.
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List 3 commercial uses of sponges
Answers
The Ceramic industry. It is used for finishing on the lathe machine. ...
Home decorating/painting. The sponge buffering is a colouring technique used in DIY on furniture and accessories and on large surfaces such as walls and ceilings. ...
Footwear Manufacturers.
Answer:
Some commercial uses of sponges are
Personal hygiene: The sponge has many natural properties. It retains water, does not drip and releases water only when slight pressure is applied. Many people prefer to purchase the natural sea sponge because of its characteristics for deep cleansing the face, its ecological properties and most of all does not give allergic reactions.
Decor : In private homes, in hotels and on yachts, it is very common to see displays of natural sponges as part of furnishing.
Painting: The sea sponge is used in the restoration of art, for dry cleaning of frescoes and paintings
Hope this helps!
-Quinn <3
In the human nervous system, the brain is an example of what level of organization? a. cell b. tissue c. organ system d. organ
Answers
Answer:
d. organ
HOPE it helps!!!Answer:
The answer is the organ
Explanation:
Eating disorders are caused by all of the following factors EXCEPT:
A. psychological factors
B. genetic factors
C. economic class
D. financial factors
Please select the best answer from the choices provided.
Ο Α
О В
О С
OD
Answers
Answer:
C
Explanation:
Eating disorders are caused by all of the following factors except economic class. Thus, option C is correct.
What is Eating disorders?Eating disorders could have the serious, or the life-threatening consequences. As the result, it has been critical to seek the treatment for these conditions. Before the doctor can treat an eating disorder, the condition that must be diagnosed. Some people may deny that there has the problem.
Disordered eating has been refers to the variety of the irregular eating behaviors that may or may not warrant the diagnosis of an eating disorder. Eating disorders, such as the anorexia nervosa (AN) and bulimia nervosa (BN), are the diagnosed disease using specific and narrow criteria.
Therefore, Eating disorders are caused by all of the following factors except economic class. Thus, option C is correct.
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How has human activity changed the planet?
Answers
Answer:
a lot of things
Explanation:
you see, we have polluted the planet, and if we keep on doing it, then the planet will die
Explanation:
human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environmsnts and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans including global warming, environmental degradation (such as ocean acidification) etc
Calculate the efficiency of glycolysis if 12 kcal of energy are required to transfer energy from glucose to ATP.
Explain please
Answers
Answer:
The ATP has a full meaning . If you get to know the full meaning you will understand it
both ethanol and glycine are small molecules of approximately equal molecular weight. However, ethanol is much more membrane permeable than glycine. What accounts for the large difference in membrane permeability between ethanol and glycine
Answers
Answer:
Ethanol is a non polar molecule.Therefore it passes through the cells membrane easily by diffusion like other non polar like CO2 and water.However, glycine is an amino acid ( the simplest amino acid) a charged molecule /polar molecule/.it can not therefore pass through the bilayer by simple diffusion because of the phospholipid bi-layers. Therefore special transport proteins are needed for its passage across the cell membrane.
Example-GLYT 1 and 2 are the carrier proteins specific for glycine transport across the membrane.
G
Explanation:
Your mother points out to you a magazine article that says better nutrition is the reason modern Americans are taller than Americans of two centuries ago. What is a valid statement that would contradict this?
Answers
Answer:
This is true, because the advent of genetic engineering and different nutritional researches have greatly enhanced the Nutritional values in foods, with resultant increases in the growth and development of cells and tissues from increase growth hormones metabolism. However, reduction in the outbreak of disease, due to advancement in medical research and drug manufacturing are another factors which may contribute to this
Explanation:
The stimulus interval has a profound effect on the contraction force of the muscle. In your own words explain what happened when the muscle was stimulated in rapid succession. At which interval did the volunteer's muscle twitches begin to merge together (summate)
Answers
Answer:
The skeletal muscle is stimulated by means of action potentials that are caused by the neuromotor plate. These action potentials are one after the other and can become cumulative once the muscle fibers pass the refractory phase of the action potential.
The refractory stage is that stage in which action potentials are not admitted, therefore where the muscle fibers do not accept stimuli to contract.
Once this refractory stage is over, more action potentials can be admitted, which would be summative and the muscle fiber would contract with greater power.
Explanation:
If a muscle is repeatedly stimulated, the contraction will be weaker or the muscle will fatigue more easily, triggering muscle failure.
If the muscle is stimulated with a longer pause between contraction and contraction, the action will be performed with more power.
Photon energy is proportional to which of the following?
period of the light wave
frequency of the light wave
speed of the light wave
color of the light wave
PLZ ANSWER 20 POINTS
Answers
The diffusion spot diameter with one crystal at 15 min ( mm) is 59 . The rate of diffusion with one crystal So how would I convert this 59 to ( mm/h)?
Answers
Answer:
This is straight forward.If there are 60 minutes in one hour, then to convert minutes to hours as requested, simply divide the number of minutes given by 60.Thus if you divided the 59 by 60 it gives you what?round the answer to whole number.
When there is a moment of any solute present in the solution from high concentration to low concentration area is called diffusion.
It will take 0.25 hours to diffuse one crystal.
This can be calculated by:
Given,
Time for one crystal diffusion = 15 minDiameter for one crystal diffusion = 59 mmIn 1 hour there are 60 minutes.
60 minutes = 1 hour.
Then 15 minutes = ? hours
[tex]\dfrac{15 \; \text{minutes}}{60 \; \text{minutes}} = 0.25[/tex]
Therefore, to diffuse one crystal of it will take 0.25 hours.
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In each of the scenarios, an individual heterozygous for the indicated gene or genes is crossed with an identical heterozygous individual. Predict the number of different phenotypes that would be observed among the progeny of such a cross.
Scenario 1 : R is completely dominant to r.
Scenario 2: R is codominant with r.
Scenario 3: R and S are completely dominant to rand s, respectively; R and S are linked by 15 m.u. and do not interact with each other.
Scenario 4: Genes R and S perform the same function; R and S are completely dominant to r and s, respectively; and R and S are unlinked.
Scenario 5: R and S are completely dominant to r and s, respectively; R and S are linked by 10 m.u. and show dominant epistasis.
Answers
Answer:
Explanation:
Scenario 2: R is codominant with r.
Scenario 3: R and S are completely dominant to rand s, respectively; R and S are linked by 15 m.u. and do not interact with each other.
Scenario 4: Genes R and S perform the same function; R and S are completely dominant to r and s, respectively; and R and S are unlinked.
Scenario 5: R and S are completely dominant to r and s, respectively; R and S are linked by 10 m.u. and show dominant epistasis.
Which puppy might have been placed into this litter by mistake
Answers
Which macromolecule is made up of nucleic acids ?
A. Sucrose
B. RNA
C. Fatty Acids
D. Protein
Answers
Answer:
Ribonucleic acid (RNA)
Explanation:
DNA (deoxyribonucleic corrosive) is the most widely recognized type of hereditary material found in numerous living beings.
Nucleic acids connect the two strands of the DNA double helix together.
RNA (ribonucleic corrosive) is additionally found as genetic material (and not DNA) in certain creatures like infections.
Infections could have ssRNA (single-stranded RNA) or dsRNA (double-stranded RNA) as their hereditary material.
However, RNA is generally single-stranded, in contrast to DNA, which is double-stranded consistently.
Another type of RNA is messenger RNA (mRNA), ribosomal RNA (rRNA), transfer RNA (tRNA), etc
Samples of the octapeptide AVGWRVKS are subjected to proteolytic cleavage by either trypsin or chymotrypsin. Select the most appropriate technique for separating the digestion products of AVGWRVKS if cleaved by trypsin. salting out gel‑filtration chromatography dialysis ion‑exchange chromatography Select the most appropriate technique for separating the digestion products of AVGWRVKS if cleaved by chymotrypsin.
A. dialysis
B. gel‑filtration chromatography
C. ion‑exchange chromatography
D. salting out
Answers
Answer:
If cleaved by trypsin you will need to do gel-filtration, if cleaved by chymotrypsin you will need to do ion-exchange.
Explanation:
3. What is the name of the process by which evolution occurs?
Answers
Answer:
Evolution is the process of genetic change from one generation to the next and may be caused by several methods. In essence, evolution occurs when some individuals or some alleles (gene types) reproduce themselves more than others,increasing their prevalence in subsequent generations.
Explanation:
The fruit fly Drosophila melanogaster is an important model system for studying inheritance in animals and genetic control of animal development, including humans. Evaluate Drosophila as a model system for human biology. What are their strengths and weaknesses as a model system? g
Answers
Answer:
The correct answer is "strengths: inexpensive, easy to culture, short life cycle, large number of offspring; weaknesses: invertebrate model, some diseases such as immunological cannot be modelled, anatomical features are very different from humans"
Explanation:
The fruit fly Drosophila melanogaster is one of the most used animal model for genetic and biomedical studies. There are many advantages of using Drosophila as model, including that it is very inexpensive to handle, it is easy to culture, it has a short life cycle allowing to observe the changes in phenotype very quickly and its large number of offspring allows to include several repetitions per trait in a study. However, there are some weaknesses of using Drosophila to study human biology. First, obviously the fruit fly is very different from humans, it is an invertebrate and its anatomical features are very different, which makes impossible to model some disorders such as immunological diseases.
