what was the key factor that allowed Hershey and Chase to show that DNA alone carried the genetic information of a bacteriophage?

Answers

Answer 1

Explanation:

DNA contains phosphorus, but protein does not. Protein contains sulfur, but DNA does not. This allowed radioactive phosphorus and radioactive sulfur to identity each molecule specifically.

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[tex] \mathfrak \fcolorbox{green}{red}{BE \: BRAINLY }[/tex]

Answer 2

In the DNA  structure there is phosphorus present while protein does not contain phosphorus but it contains sulfur while DNA does not which allowed radioactive phosphorus and radioactive sulfur to identity each molecule specifically.

What is Hershey and Chase experiment?

Hershey-Chase experiment was the final experiment which is also called as the Waring Blender experiment. In this experiment, they showed that phages only injected their DNA into host bacteria, and that the DNA served as the replicating genetic element of phages.

They used this experiment to prove that DNA is the genetic material. [tex]T_2[/tex] Bacteriophage that was grown in isotopic medium radioactively labels a specific viral component. Two types of isotopic media were used.

Viruses that were grown in radioactive sulfur (35S) contained radiolabeled proteins.Viruses grown in radioactive phosphorus (32P) had radiolabeled DNA

Next, the virus was allowed to infect a bacterium (E. coli) and the virus and bacteria were then separated through centrifugation. After centrifugation, the larger bacteria formed a solid pellet, while the smaller viruses remained in the supernatant. The pellet of bacteria was found to be radioactive when infected with 32P-virus (DNA), but not with 35S-virus (protein).

This provided proof that DNA was the genetic material because DNA had been transcribed into bacteria, not proteins.

Thus, in the DNA  structure there is phosphorus present while protein does not contain phosphorus but it contains sulfur while DNA does not which allowed radioactive phosphorus and radioactive sulfur to identity each molecule specifically.

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Related Questions

Oxygen is made during photosynthesis. (True or False)

Answers

Answer:

True

Explanation:

True

Ans: True
Explanation: oxygen is produced as a by-product during photosynthesis

what stops the harmful "solar wind" from hitting the Earth?​

Answers

Earth has a strong magnetic field. This deflects the charged particles and protects Earth.

Hope this helps :)

Antheridium is similar to Archegonium in all of the following except
The chromosomal set
Their site on the gametophyte is convergent
Number of the gametes produced by each one
Type of division in each one

Answers

Answer:

Explanation:

An archegonium (pl: archegonia), from the ancient Greek ἀρχή ("beginning") and γόνος ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresponding male organ is called the antheridium.

Which statement best explains why the population stabilized and why?!

A population of chipmunks migrated to an environment
where they had little competition, Their population quickly
increased but eventually stabilized as shown in the graph.

A. Interbreeding between members of the population increased the mutation rate.

B. A predator species came to the area and occupied the same niche as the
chipmunks

C.
The population size became limited due to factors such as availability of food.

D. An increase in the chipmunk population caused an increase in the producer
population.

Answers

Answer: C. The population size became limited due to factors such as availability of food.

Explanation:

Out of all the choices, C is the most likely to happen since more often then not, food runs out because a species has too many members. C is an example of the environment’s carrying capacity limiting the chipmunk species.

Since we are not told if the chipmunk population is really small, interbreeding may not happen. Predators hunt prey, not eat fruits like chipmunks do (I’m assuming what chipmunks eat.) If there was a predator species that came in, they would hunt the chipmunks instead of competing for the same resources. D just doesn’t make much sense in my opinion because that wouldn’t limit the chipmunk population.

The population size became limited due to factors such as availability of food in the chipmunks. Thus the correct option is C.

Why the population size become limited?

The population size become limited because of carrying capacity. It can be defined as a species' average population size in a particular habitat.

The chipmunks species population size is limited by environmental factors like adequate food, water, shelter, and mates. If these needs are not met, the population will decrease until the resource resile.

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I’m confused with this question :(
Can anyone help?

Answers

Sorted by Size is the right answer

Check
Which molecule is a high-energy output of the light reactions? (1 point)
A) АТР
B) hydrogen
C) oxygen
D) ADP

Answers

The answer is A) ATP

Answer:

A) ATP

Explanation:

Overpopulation can result from _____________

Answers

Answer: Overpopulation can result from low mortality rate.

Explanation: Population change is caused by a balance in birth rate and death rate. If the death rate decreases, it will cause a growth in population. I hope this answer helps.  

 

what are the Cell Division in the human liver cell​

Answers

Answer:

mitotic division

Explanation:

Describe what would occur if you turned a growing seedling on its side (without disturbing the root system.) What is occurring inside the plant, and what hormone is involved? Be specific.

Answers

try looking this up through quizlet! i found one called “plant responses “ that may help you

Phytohormones are responsible for the movement of plant towards stimulus. Auxin is the main phytohormone responsible for gravitropism and phototropism of plants.

What is Plant Movement?

Plants are immobile however different parts of the plant show movements in response to the stimulus in the environment. The chemicals present in the plant body which are responsible for these movements are called phytohormones or plant hormones.

Auxins are the main hormones responsible for the cell elongation in plants.  Auxins are responsible for the phototropism (movement of plant parts in response to light) and gravitropism (movement in plants in response to gravity).

Roots of a plant grow downward and exhibit positive gravitropism whereas stems on the other hand, exhibit negative gravitropism since they grow upwards and against the gravity. If you place a plant on its side or even upside down, the stem will curve its way up in response to gravity and auxin is responsible for this movement.

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The Mauna Loa Observatory in Hawaii has been collecting data about the
atmosphere and climate since the 1950s. The graph below shows some of
their findings. What conclusions can you draw by studying the above the graph?


options:

climate change is a natural process

all climate change is caused by humans

the levels of carbon dioxide in the atmosphere have been increasing since the 1960s

the levels of carbon dioxide in the atmosphere have been decreasing since the 1960s

Answers

Answer:

These search terms appear in the result: mauna, loa, observatory, hawaii, has, been, collecting, data, atmosphere, climate, since, 1950s, graph, shows, some, their, findings, conclusions, can, you, and draw

How do chemosynthetic organisms get energy?

Answers

Answer: Chemosynthetic bacteria, unlike plants, obtain their energy from the oxidation of inorganic molecules, rather than photosynthesis. ... Chemosynthetic bacteria are chemoautotrophs because they're able to use the energy stored in inorganic molecules and convert them in organic compounds.J

Explanation:

Answer: They get their energy from the oxidation of inorganic molecules.

If all the of the carbon dioxide were removed from the atmosphere, what effect would this have on plants?

Answers

Answer: Planet burn

Explanation:

no atmosphere

How body responds when the body temperature increases

Answers

When body temperatures rise, the body reacts by increasing blood flow to the skin's surface, taking the heat from within the body to the surface. This means sweat. As the sweat evaporates, the body cools down.

When the temp rises the body reacts a certain way , which is increasing blood flow into the skin surface.

Which of the following statements BEST describes photosynthesis?
Photosynthesis uses light energy to convert glucose and carbon dioxide to oxygen and water.
Photosynthesis uses light energy to convert carbon dioxide and oxygen to glucose and water.
Photosynthesis uses light energy to convert carbon dioxide and water to glucose and oxygen.
Photosynthesis uses light energy to convert glucose and oxygen to carbon dioxide and water.

Answers

The answer is the third option! Photosynthesis is the process in which plants convert carbon dioxide, water, and light energy into oxygen and glucose! Have a great day, I hope this helped! ^_^

Answer:

Explation photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Primate evolution and behavior, such as hunting skills, have been directed in part by the development of depth perception. What anatomical change in primates from other animals made depth perception possible

Answers

maybe changing the gas that we use that makes the air bad and stop hunt and maybe try natural foods instead of hurting the animals

name at least four process that
are common to most living things

Answers

organization, metabolism, responsiveness, movements, and reproduction.

in a water molecule the hydrogen and oxygen atoms hold together by sharing

Answers

Answer:

covalent bonds.

Explanation:

Covalent bonds happen when two atoms - in this case, hydrogen and oxygen - share electrons with each other.

Answer:

covalent bonds

Explanation:

duh


The Earth's lithosphere ON THE CRUST is broken up into sections known as:
A asthenosphere
B layers
tectonic plates
D) atmosphere

Answers

The lithosphere is divided into chunks known as tectonic plates.
The lithosphere is the rocky outer part of the Earth. It is made up of the brittle crust and the top part of the upper mantle. The lithosphere is the coolest and most rigid part of the Earth.

Categorize each carbohydrate listed as either a monosaccharide, disaccharide, or polysaccharide.
glucose

Answers

Answer: Glucose and Fructose are monosaccharides. Cellulose and starch are polysaccharides. And sucrose is a disaccharide.

paula uses an enzyme to speed up her chemical reaction

this is an example of which of the following biological molecules

carbohydrates
nucleic acids
proteins
lipids

Answers

proteins (:
proteins uses enzymes to speed up chemical reactions
carbohydrates is the answer

What is the difference between community and ecosystem?
Please help

Answers

Answer:

Ecosystems are composed of all of the various living organisms, along with the abiotic factors that impact them. The difference between community and ecosystem in ecology is that the community only refers to living things within an ecosystem. A sample of soil can provide a small-scale example.:

What is the difference between weathering and erosion? (Site 1).

Answers

Answer:

Weathering and erosion are natural geological processes that act like rocks and soil on the earth's surface, moving and reshaping the earth. Weathering is the breaking down of rocks into smaller pieces by changing the size and structure of the rocks. The forces of nature are largely responsible for this process. Erosion involves processes such as wind, water flow, and ice movement, which results in change from one place to another.

Which of the following facts is the best example of molecular DNA evidence that
supports the Theory of Evolution?
A. Humans and chimpanzees share between 95% and 98.5% of their DNA.
B. The embryos of humans and chickens share similar features early in development.
C. Humans, penguins, alligators, and bats all share forelimbs with homologous structures.
D. In the fossil record, plants are found below reptile fossils. Im guessing that its A

Answers

Answer: A I think.

Explanation:

Cuz M O N K E S Are just like humans!

I think the answer is A since human beings evolved from an ape

2 pts
Question 3
All of the following are principles of the cell theory EXCEPT
water is the main ingredient in every cell
a
bo the cell is the smallest unit of life
C o all new cells come from preexisting cells
do all living things are made of one or more cells

Answers

Answer:

A (if it is a multi-answer question) also B. Even also C.

Explanation:

C is definitely not the correct answer because germs and microbes are living things and are made of only 1 cell. The cell is also the smallest unit of life because it is called "the building blocks of life", so it has to be the smallest unit of life. Even C, because cells multiply using an existing cell, just like we humans reproduce. First, it duplicates all of its parts, or contents, including the DNA, then they split to create a new cell,  (or if i'm incorrect, 2).

Use the chart to help.  

Describe the typical path that hurricanes take in the northern hemisphere.Text to speech

Answers

The clockwise rotation (in the Northern Hemisphere) of air associated with high-pressure systems often cause hurricanes to stray from their initially east-to-west movement and curve northward.

What is most responsible for the presence of groundwater in an area?

Answers

Answer:

precipitation

Explanation:

Which statement describes a similarity between a eukaryotic and a prokaryotic cell?
A
Both cell types contain DNA.
B
Both cell types contain a nucleus.
© Both cell types undergo cell division by mitosis.
D
Both cell types contain membrane-bound organelles.

Answers

Answer:

C.

Explanation:

Because for answer A, only eukaryotes have DNA, also for B, only eukaryotes have a nucleus and lastly, for D, only eukaryotes contain membrane-bound organelles. hope this helps :)

Both cell types undergo cell division by mitosis. Therefore, option (C) is correct.

What are eukaryotic and prokaryotic cells?

A nucleus and other membrane-bound organelles are exclusively found in eukaryotic cells, which is the main distinction between prokaryotic and eukaryotic cells. Prokaryotes and eukaryotes, respectively, are made up of prokaryotic and eukaryotic cells. Eukaryotes often have several cells, but prokaryotes are invariably unicellular. Eukaryotic cells are also between 100 to 10,000 times bigger and more complicated than prokaryotic cells.

Prokaryotic DNA is kept in the cytoplasm, while DNA in eukaryotes is kept in the nucleus. Additionally, double-stranded chromosomes that are compressed by histones are where eukaryotic cells store their DNA. Prokaryotic organisms, on the other hand, only contain one basic circular chromosome and a variety of plasmids, which are tiny DNA rings. In comparison to prokaryotic cells, the DNA of eukaryotic cells contains a higher percentage of non-coding DNA and proportionately less coding DNA.

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which disease is caused when there isn't enough bile to breakdown fat and oil in food . And how is it caused​

Answers

Exocrine pancreatic insufficiency (EPI) causes problems in how you digest food. Your pancreas doesn't make enough of the enzymes that your body needs to break down and absorb nutrients. Enzymes speed up chemical reactions in your body. The enzymes made by your pancreas move into your small intestine, where they help break down the food you eat. When you have EPI, you don't get the nutrition you need because your body can't absorb fats and some vitamins and minerals from foods. You might lose weight or have pain in your belly.

After an extreme disturbance, ecological succession ultimately causes the
O A. populations of each species to keep growing
B. biodiversity to increase
O C. ecosystem to become less stable
D. biodiversity to decrease

Answers

Answer: B biodiversity to increase

Explanation:

HELP ME!!! ASAP!

Why do you think that diagnosing a parasite infection can be difficult in some cases? What factors would make it challenging?​

Answers

Answer:Diagnosis of any stool parasite may be difficult by submitting several stool specimens, your chance of being diagnosed correctly is higher than by submitting just one sample. If you receive a negative lab report, your physician may choose to send another sample to a different lab for confirmation.

Explanation:

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