When DNA segments are being separated by size,

A- the small strands stay near the top, the big ones move to the bottom

B- the big strands stay near the top, the little ones move to the bottom

C- the small strands move to the middle, and the big ones move to the sides

D- the big strands move to the middle, and the small ones move to the sides

Answers

Answer 1
Answer

Explanation:

DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode. Shorter strands of DNA move more quickly through the gel than longer strands resulting in the fragments being arranged in order of size.

Related Questions

When the cells in the male and female parent divide, do them they form body cells or sex cells? Please explain!!!!!​

Answers

Answer:

well i kinda think they form a body cell only ...

GIVING BRAINLIEST AND THE REST OF MY POINTS!!!!! :D
Two parts of the food chain are described below:

Part #1: These organisms are the ending of the food chain.
Part #2: This passes energy to plants and animals.

Which statement is true about these two parts of the food chain?

A) Part 1 are consumers, Part 2 is the sun
B) Part 1 are consumers, Part 2 are producers
C) Part 1 are producers, Part 2 is the sun
D) Part 1 are producers, Part 2 are consumers

(DONT ADD ANY LINKS)

Answers

The answer is part 1 are consumers and part 2 is the sun. Consumers are the animals that last animal is does not have a predator in its food chain. While the sun provides for plants and animals mostly because plants do not get energy from eating and the sun provides vitamins and nutrients for our food.

The correct statement is B) Part 1 are consumers, Part 2 are producers.

What are the two parts of food chain?

Part 1 of the food chain describes organisms that are the end of the food chain, which would typically be consumers or animals that feed on other organisms, including plants and other animals.

Part 2 of the food chain refers to something that passes energy to plants and animals. This is typically the sun, which provides energy through photosynthesis to producers, or plants, that convert light energy into chemical energy stored in food. Producers form the base of the food chain, providing energy to all other organisms in the ecosystem through the food they produce.

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At which time points did the scientists take measurements? (Attachment)

Answers

Answer:

(0,0) (2,45) (4,25) (6,20)

Explanation:

I need help please with both of them

Answers

prevent

location

Explanation

Top is prevent and bottom is achievement

Vascular plants are able to grow taller than nonvascular plants because A. lignin in the cell walls of vascular tissue helps the plant overcome gravity. B. they can live in drier areas than nonvascular plants. C. they rely on osmosis to transport materials throughout the body of the plant. D. there is more sunlight in the areas where vascular plants live.

Answers

Answer:

c

Explanation:

Answer:

A

Explanation:

I got it wrong the first time

A Carbon Sink is a reservoir which absorbs more carbon than it releases. Suggest how carbon in the bodies of crustaceans and molluscs is removed from the oceanic food chain to become part of another, slower carbon reservoir.

Answers

Answer:

Crustaceans and Molluscs play an important role in the oceanic carbon sink.

Explanation:

Carbon sinks can serve to partially offset greenhouse gas emissions. Forests and oceans are both large carbon sinks. Algae is pressurized to bottom of the ocean by long term sequestration. Algae then falls to the bottom of the ocean and TRANSFORMS to fossil fuels.

CO2 is not combustible. creates carbonic acid in the oceans. Reduces seawater pH, carbonate ion concentration, and thus calcium carbonate (needed for shells for marine creatures, contributes to BOTTOM-UP EFFECT)

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Can muscle fatigue be attained with short repetitive contractions in a 5 minute period?

Answers

Answer:

Muscle fatigue is a common complaint in clinical practice. In humans, muscle fatigue can be defined as exercise-induced decrease in the ability to produce force.

Explanation:

Which of the following DOES NOT contain a nucleus? *
Prokaryotic cell
O Plant cell
O Animal cell
O Eukaryotic cell

Answers

Answer:

The correct answer is A) prokaryotic cell.

Explanation:

Hope this helped Mark BRAINLIEST!!!

Prokaryotes are cells that do not contain a nucleus, the organelle that contains a cell's genetic material, or other membrane-bound organelles.

A mutation is least likely to affect a cell when the mutation --

Answers

A mutation is least likely to affect a cell when the mutation is reverses the order of bases in a DNA strand. when the total number of bases in a DNA sequence remain the same. Replaces a base with its complementary base and produces a codon which codes for the same amino acid as the original codon.

A mutation is least likely to affect a cell when the mutation is silent in nature or is not associated with an exon, it is least likely to affect a cell. Any mutation that happens to the introns does not affect the cell's function.

What is the function of cells and mutation?

As genetic materials, nucleic acids encode information about the cell's structure and function, its proteins, receptors, and so on. The mRNA that is formed from the gene has roles in the formation of the receptor, the enzymes, etc., so if any mutation happens to the gene that is in the coding region, then it can show its impact, but if the mutation is of the silent type, then it has no impact on the cell.

Hence, when a mutation is silent in nature or is not associated with an exon, it is least likely to affect a cell. Any mutation that happens to the introns does not affect the cell's function.

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As the train rushed down the hill, gravitational potential energy was converted into kinetic
energy.
Which piece of evidence best supports the claim?
A. The speed of the train increased as the height of the
train decreased
B.The people in the train felt like they were being
pushed down at the bottom of the hill,
C.The train kept moving when it reached the flat part of
the track

Answers

Answer:

A. The speed of the train increased as the height of the

train decreased

Explanation:

4. Give two examples of how you interact
with the carbon cycle.

Answers

Answer:

in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. ... Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle.

Explanation:

Burning fossil fuels, changing land use, using limestone to make concrete. All of these are significant to the carbon cycle.

Hey Im Chloe, Can you Help me.

Which 2 age classes of deer are most affected by habitat quality?

Answers

Answer:

Additionally, see how survival of younger deer (fawns and yearlings) is reduced. Younger deer are the most sensitive to habitat quality and environmental events, thus reproduction and survival of fawns and yearlings can be a good indicator of habitat quality, or deer density relative to carrying capacity.

Explanation:

Answer:

Probably the small ones and  the older ones

Explanation:

In addition to glucose the cell needs to drive cellular respiration:

A oxygen
B carbon dioxide
C water
D hydrogen​

Answers

Answer: Oxygen is needed to help the process of turning glucose into ATP. The initial step releases just two molecules of ATP for each glucose. The later steps release much more ATP. Most of the reactions of cellular respiration are carried out in the mitochondria.

Explanation:

Sedimentary rock tends to be porous and thus is more likely to be part of an aquifer than consolidated igneous rocks.
A true
B false

Answers

The answer is B, false. You can’t get one without the other.

How do Venus, Earth, and Mars compare to each other? Explain.

Answers

Answer:

Explanation:

Because they are all 4 rocky planets in the solar system, I did it when i was in 4th grade during my solar system project

The Venus, Earth, and Mars compare to each other because they are all 4 rocky planets in the solar system.

What is the solar system?

The Sun and the objects that orbit it make up the gravitationally bound system known as the Solar System. The massive interstellar molecular cloud's gravitational collapse resulted in its formation 4.6 billion years ago.

Our planetary group comprises of our star, the Sun, and everything bound to it by gravity - the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; planets as small as Pluto; a lot of moons; and millions of meteorites, asteroids, and comets.

The fundamental thought of the planetary group was proposed by the Clean stargazer Nicolaus Copernicus (1473-1543) who said that "the Sun is the focal point of the Universe" and made the planets move around it in amazing circles.

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How can planting a large area of just one variety of plant cause problems for both a farmer and an ecosystem?

Answers

Answer:

Particular plants use particular nutrients from the soil. If you were to consistently plant a large number of plants, of the same species, in the same area. The plant will use all of the nutrients it needs, before the nutrients are replenished. This can cause a decrease in the farmer's yield. By doing this you also create a habbitat for pests. Some pests live off to certain plants, so if your not planting other crops, the pests will thrive. Plating a variety of crops is good because some plants will repel pests from other crops that the pests may be attracted too.

Help! PLEASE!!!! ASAP!!!

Answers

Answer:

The answer is B. Igneous rocks

Explanation:

Hope this helped Mark BRAINLEST!!!

What role can the environment play in gene expression?

Answers

Answer:

Internal and external environmental factors, like gender and temperature, influence gene expression. ... Similarly, drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an organism develops and functions.

Explanation:

where does diffusion take place in the nervous system?

Answers

Answer:

In diffuse systems nerve cells are disseminated all through the life form, generally underneath the external epidermal layer. Hope this helps.

Explanation:

2 Chili
peppers, avocados,
squash are what type
of vegetable?
Seed
and
Tuber
D Flower

Answers

Answer:

I'm not entirely sure what you're asking because none of this makes sense but the answer is fruit

Explanation:

3.What is the difference between a dominant and a recessive trait?

Answers

Answer:

Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.

Explanation:

3. Which side represents low concentration?

Answers

Answer:

left side becuz there's small red circles... and the red circles means concentration

Answer:

Left side represents low concentration

Explanation:

The left side has less molecules compared to the right side

Now think about the following scenario...


As a family physician, you often treat children who suffer from infectious diseases that could easily be prevented through vaccination. But the parents of many of your patients cannot afford the cost of vaccinations. You hear of a new approach that would reduce the cost to a fraction of its current price: genetically modified fruits and vegetables that contain various vaccines. By simply eating a banana, a child could be protected against disease without getting a shot!


What would you do?

A. Encourage your patients to eat genetically modified fruits and vegetables

B. Continue to use the vaccinations despite the cost

Answers

Answer:

A

Explanation:

is the answer cuz just by eating a banana the disease can be prevented

Encouraging patients to eat genetically modified fruits and vegetables which protect them from getting sick. So, the correct option is (A).

What is Genetically Modified food?

Genetically modified foods are also known as GM foods or genetically engineered foods or bioengineered foods. These are produced from organisms whose DNA has been altered using genetic engineering methods.

These are derived from organisms whose genetic material (DNA) which has been modified in a way which does not occur naturally, e.g. through the introduction of genes from a different organism.

There are several benefits of GM foods in agriculture like

1. Increased crop yields

2. Reduced costs for food or drug production

3. Reduced need for pesticides

4. Enhanced nutrient composition and food quality,

Thus, encouraging patients to eat genetically modified fruits and vegetables which protect them from getting sick. So, the correct option is (A).

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A food chain consists of a seagull eating a dead swordfish that had eaten a bluefish. The bluefish had eaten shrimp that had eaten photosynthetic algae.
Which organism in this food chain can be classified as a scavenger.

a. Seagull
b. Bluefish
c. Swordfish

Answers

C. Swordfish hope this helps

Which plant, shown in the cladogram below, shared a recent common ancestor with spikemosses and quilworths?

Answers

Answer:

Clubmosses

Explanation:

I don't really have an explanation

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What are two ways that a frog’s tongue is different from a human’s?

Answers

1.They are connected at the front of the lower jaw 2. It projects out of the mouth
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En una isla oceánica aislada hay una especie de pájaros, la

mayoría de plumaje gris. Una variedad con manchas blancas

constituye el 4% de la población. Esta característica se debe a un

gene recesivo (s) al del plumaje de color gris entero (S).


¿En qué frecuencia se encuentra el gene s?


a 0.3

b 0.2

c 0.1

d 0.05

Answers

Answer:

La frecuencia del alelo recesivo s es igual a 0.2 (opción b)

Explanation:

Datos disponibles:

Plumaje gris es el fenotipo dominantePlumaje con manchas blancas es el fenotipo recesivoS es el alelo dominante para plumaje griss es el alelo recesivo para plumaje manchadoVariedad manchada representa el 4% de la población.

Si ejemplares con ala manchada y genotipo ss representan el 4% de la población, entonces los restantes 96% corresponden a ejemplares grises homocigotas dominantes SS y heterocigotas Ss. Las frecuencias fenotípicas serán:

Plumaje gris (SS + Ss) = 96% = 0.96Plumaje manchado (ss) = 4% = 0.04

De acuerdo al equilibrio de Hardy-Winberg, la suma de las frecuencias alélicas equivale a 1, y la suma de las frecuencias genotípicas también equivale a 1.

Frecuencia del alelo dominante = pFrecuencia del alelo recesivo = qFrecuencia de genotipo homocigota dominante = p²Frecuencia de genotipo heterocigota = 2xpxqFrecuencia del genotipo homocigota recesivo = q²

Entonces,

p + q = 1p² + 2pq + q² = 1

Si la frecuencia genotípica del homocigota recesivo es 0.04, entonces la raíz cuadrada de ese valor es la frecuencia génica del alelo recesivo. Esto es:

q² = 0.04q = √0.04 = 0.2

A partir de la ecuación p + q = 1, podemos calcular el valor de p.

p + q = 1

p + 0.2 = 1

p = 1 - 0.2

p = 0.8

Entonces la frecuencia genotípica del homocigota dominante es p²

p² = 0.8² = 0.64

Y la frecuencia genotípica del heterocigota es

2pq = 2 x p x q = 2 x 0.8 x 0.2 = 0.32

Para corroborar esto, la suma de todas las frecuencias genotípicas debe dar uno.

0.64 + 0.32 + 0.04 = 1

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Why is it helpful for frogs to have bulging eyes?

Answers

Answer:

It is helpful for frogs to have bulging eyes because it allows them to see in all directions such as in front of them, to the sides, and partially behind them. The frog's eyes that are positioned above their head give them a field of vision of almost 180 degrees, this helps them spot predators and prey easier and quicker.

Explanation:

Describe what a spreading center is and how a volcano
forms there.

Answers

Explanation:

Spreading center volcanism occurs at the site of mid-oceanic ridges, where two plates diverage from one another. As the plates are pulled apart, hot ashtenophere rise upward to fill voids of the extended lithosphere.

Usable fresh surface water is relatively scarce. To many people, streams and lakes are the most visible part of the water cycle. Not only do they supply the human population, animals, and plants with the freshwater they need to survive, but they are great places for people to have fun.

Answers

Answer:

True.

Explanation:

Usable fresh surface water is scarce. Freshwater is not in excess on our planet. We can find it on lakes, lagoons, rivers, and swamps, but it is only 3% of the totality of Earth's water. The importance of this water is that it is the one that is suitable for humans, a large number of plants, and animals. This is why there are different methods to store and distribute fresh water amongst all the population and places that need it. Besides, the places where freshwater is, are great for activities, such as swimming, sailing, rafting, diving, fishing, etc.

Since freshwater is scarce and has so many uses, we must take care of it.

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