What was the Hershey-Chase experiment designed to determine?

whether or not bacteriophages can infect bacteria

whether DNA or RNA is the genetic material of the virus

whether cells use DNA or proteins to store genetic information

whether or not viruses satisfy the criteria for life

Answers

Answer 1

Answer:

Presumably B, which is the second one.

Explanation:

The Hershey–Chase experiments were a series of experiments conducted in 1952 by Alfred Hershey and Martha Chase that helped to confirm that DNA is genetic material.


Related Questions

Why is a plant classified as an autotroph

Answers

Answer:

because of how it lives

Explanation:

what are two parts found in plant cells that are not in animal cells

Answers

Answer:

The two parts that found in plant cells that are not in animal cells:

Cell WallChloroplast

Explanation:

Hello there, identify two other diseases that may affect the persons who are obese.
just two of them, please and thank you

Answers

Type 2 Diabetes and different types of Cancer (colon, breast, endometrium, kidney, esophagus, and more are all linked to obesity.)

type 2 diabetes - when your body becomes resistant to insulin, cells are not able to absorb glucose and convert it into energy as a result of this resistance. it causes high blood sugar.

people who are obese have higher risk of several types of cancer, including colon, breast (in woman who have gone through menopause), endometrium, kidney, rectum, pancreas, gallbladder, etc

hope this helped, sorry if you needed more info!!

2. How do the parts of the circulatory system work together

Answers

Answer:

The circulatory system (cardiovascular system) pumps blood from the heart to the lungs to get oxygen. The heart then sends oxygenated blood through arteries to the rest of the body. The veins carry oxygen-poor blood back to the heart to start the circulation process over.

Explanation:

How is a viral reproduction different from the reproduction of a living cell?

Answers

Viral reproduction requires a host cell for the the virus to reproduce but a living cell doesn’t need a host cell.

Myelination in areas of the brain that are important in focusing attention is not sufficient until an individual reaches approximately which age

Answers

I believe the answer is B

Answer to 20…………………..

Answers

The Cell had no cell wall.

How to tell if a pedigree is dominant or recessive?.

Answers

Answer:

If the trait is dominant, one of the parents must have the trait. Dominant traits will not skip a generation. If the trait is recessive, neither parent is required to have the trait since they can be heterozygous.

Explanation:

EPA scientists performed an experiment where coal was
burned in different chambers at varying temperatures to see
how temperature impacts the amount of NO, produced by
coal combustion.

Explain how the results of the study would be expected to
change if the same experiment were repeated with natural
gas.

Answers

The results of the study would be expected to change if the same experiment were repeated with natural gas in the area of a decrease in the reaction time.

What is Reaction time?

This is the time frame between when a stimulus and a response or total time taken for a reaction to occur.

Natural gas produces steady amount of heat with a higher temperature which leads to a decrease in reaction time.

Read more about Reaction time here https://brainly.com/question/1114291

Where did the carbon found throughout the body of a plant originate?.

Answers

The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.

The amount of light absorbed in spectroscopy is defined by.

Answers

Spectrophotometry is a method to measure how much a chemical substance absorbs light by measuring the intensity of light as a beam of light passes through sample solution. The basic principle is that e ach compound absorbs or transmits light over a certain range of wavelength.

The amount of light absorbed in spectroscopy is defined by measuring the intensity of light when a beam of a particular wavelength passes the sample solution.

What is Spectroscopy?

Spectroscopy may be defined as a type of technique that measures how much light is absorbed by any solution at a specific wavelength.

Spectroscopy is mainly used for investigating the structure and configuration of atoms and molecules. It is also used in finding the unknown chemical composition of materials in any solution.

Therefore, it is well described above.

To learn more about Spectroscopy, refer to the link:

https://brainly.com/question/14854785

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What is happening to the DNA molecule in the figure?(Explain the first step in DNA replication)

Answers

The hydrogen bonds are breaking and the DNA is separating into two

Please help in science!! Need answer asap!! With clear explanation please!!

Answers

The consumer is the bird because it is getting its energy by eating the fruit from the bush.

Which of the following statements regarding water conservation is not true? a. Only about 1% of Earth’s water supply is usable for human consumption. B. Over half of the states predict water shortages by 2013. C. While environmentally beneficial, water conservation is a costly endeavor. D. Failure to conserve water will lead to more water contamination. Please select the best answer from the choices provided A B C D.

Answers

Answer:

D

Explanation:

Failure to conserve water will lead to more water contamination.

Answer:

D

Explanation:

Edge 2022 Trust the process

what is the genotype of parent 2?

Answers

Answer:

Scientists use the term genotype to refer to the combination of mother and father genes in the person's make up. AA, AO and OO are the 3 genotypes that may result from the mating of the parents in the example above. Scientists use the term phenotype to refer to what gene is actually expressed

what does it mean "all vertebrates ate chordates but all chodrates are not vetebrates" ?​

Answers

Answer:

It means vertebrates notochord is replaced by vertebral column (backbone), however vertebral column is not present in protochordates.

Explanation:

Hope this helps:)

Greenhouse effect is caused by:


trapped carbon dioxide


trapped infrared energy


trapped greenhouse gasses


too many greenhouses.

Answers

Answer:

The answer is C. trapped greenhouse gasses

Explanation:

The greenhouse effect is the warming of the Earth's surface and troposphere (the lowest layer of the atmosphere) produced by the presence of water vapour, carbon dioxide, methane, and other gases in the atmosphere. Water vapour has the greatest impact of the gases classified as greenhouse gases.

Which of the following animals is showing a seasonal change to winter?

Answers

Answer:

Bear shedding fur

Explanation:

Like dogs, bears lose some of their soft, dense insulating underfur as well as some of their coarse outer guard hairs when temperatures climb. That’s why bears can look very scruffy by late summer. As the weather cools and they layer on fat for hibernation, their underfur and guard hairs grow back.

Bears are known to shed their fur.

I hope this helps you
:)

Which of the following is NOT a problem cells face as they
grow larger and larger?

A cell could potentially burst

B increased cost to transport of waste in/out of cell

C communication between cell parts takes longer

D decreased cost to move materials in/out of the cell

Answers

Answer:

A

Explanation:

cells literally never burst. Before burst they have already got replaced by new onesAs the cells grow they can grow to a particular extent ,later they don't grow .so they're never bursted .

Option A

Recessive genes a, b, c, d, e, and f are closely linked on a chromosome, but in unknown order. Three deletions in the region are examined. One deletion uncovers c, d, and f; another deletion uncovers b, c, d, and e; and the third deletion uncovers a and b. What is the order of the genes?

Answers

The answer is take the cat on a walk don’t come back the third one is a go on a break second one is deep eat your cat

The steps of the scientific method are listed below. Check the box next to each step of the scientific
method that you think communication plays an important role in.
Ask a question based on observation and research.
Form a hypothesis.
Make a prediction.
Perform an experiment.
Analyze results and draw conclusions.
Accept or reject the hypothesis.
Record and communicate results.

Answers

Answer:

It's the first one, never is ask a question first. hypothesis is first.

Explanation:

Answer:

A,E,G

Explanation:

Describe the function of the stomata in a plant. Question 5 options:
Produces sugar
Lets gasses and water vapor pass in and out of a plant
Captures sunlight
Produces energy

Answers

Answer:

It would be B. lets gasses and water vapor pass in and out of a plant.

Explanation:

Stomata are typically found in plant leaves but can also be found in some stems.

Which disease is caused by an organism that is unicellular?
A. Bacterial pneumonia
B. rabies
C. common cold
D. influenza

Answers

A Bacterial pneumonia

bez all other r acellular which means they r not made up of cell

all other diseases are caused by viruses which r proteins coats around the RNA or DNA but they r not complete cell

Extra point :- Virus r intermediate between living and non living.

Farmers can trigger uniform ripening times in fruit by treating plants with ________. Ethylene ethylene oligosaccharins oligosaccharins jasmonates

Answers

Answer:

ethylene is the blank word

Explanation:

Farmers can trigger uniform ripening times in fruit by treating plants with 2. ethylene.

Ethylene is a plant hormone that plays a crucial role in the ripening process of fruits. It is a gaseous hormone that acts as a signaling molecule, influencing various physiological processes in plants, including fruit ripening.

When plants produce ethylene naturally, it acts as a signal to initiate and coordinate the ripening of fruits. Ethylene triggers a cascade of biochemical and physiological changes that lead to fruit softening, color development, flavor enhancement, and aroma production.

Farmers can exploit the role of ethylene in fruit ripening by treating plants with exogenous ethylene. By applying ethylene to fruit crops, farmers can induce uniform ripening times, ensuring that the fruits in a crop reach the desired stage of ripe-ness simultaneously.

This technique is particularly useful for commercial fruit production, where uniform ripening is desirable for efficient harvesting, storage, transportation, and marketing purposes. It allows farmers to coordinate the timing of fruit ripening, leading to more consistent quality and appearance across the crop.

It's worth noting that other methods can also be used to manipulate fruit ripening, such as the use of synthetic plant growth regulators or other hormones. However, ethylene is one of the primary hormones involved in the natural ripening process, and its exogenous application is a commonly used method to trigger uniform ripening times in fruit crops.

To learn more about plant hormones, here

https://brainly.com/question/30368139

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The complete question is:

Farmers can trigger uniform ripening times in fruit by treating plants with ________.

1. oligosaccharins2. ethylene3. jasmonates

Which of these statements are true of DNA replication during the cell cycle?

Answers

Answer:

Explanation:

The statements that are true with respect to DNA replication are:

A. DNA replication is semiconservative.

D. The cell leaves S phase with two copies of each of its chromosomes.

DNA replication can be defined as a semiconservative biological process, through which two (2) identical replicas of deoxyribonucleic acid (DNA) molecules are produced from an original deoxyribonucleic acid (DNA) molecule, especially during cellular division.

Hence, DNA replication is a semiconservative biological process which involves the duplication of a double-stranded DNA to produce two (2) identical deoxyribonucleic acid (DNA) molecules i.e one (1) original and one (1) new strand.

We can deduce the following points from the above:

   DNA replication is a semiconservative biological process.

   During the S phase, the cell leaves with two (2) identical replicas of deoxyribonucleic acid (DNA) molecules i.e two (2) copies of each of its chromosomes.

but you didn't state your statements so I can't really tell what statements you had.

draw a labeled diagram of the brain​

Answers

I hope this is what you mean! =]

What are the advantages and disadvantages of reproducing by spores.

Answers

Explanation:

These spores can be produced quickly and in large numbers to enable many individual fungi to develop. A disadvantage of these spores is that they generate offspring that are unlikely to be resistant to unfavourable conditions because they are all genetically identical.

Advantages The organism does not need male and female reproductive organs.

Organisms do not waste their energy unnecessarily in producing male and female gametes.

Large numbers of spores are produced in one sporangium.

Spores do not require any medium for dispersal. They are rounded and very light in weight and hence can be easily transferred for germination.Spores are distributed easily by air to far-off places to avoid competition at one place.

Spores are covered with thick walls to prevent dehydration under unfavourable conditions.

Disadvantages :

A disadvantage is that the spores will be clones of the original organism, leaving them vulnerable. Spore reproduction is quick and multiplies many at once, hence the population will increase and survival chances are high. They remain dormant till favourable conditions are available. As they are light, they can be carried by wind and hence can start growing in different regions

Alleles for the A and B blood cell antigens are codominant. The condition
where no antigens are present on the blood cells (type O blood) is a
recessive trait. Which set of parents can most likely produce a child with
type O blood?
Blood Type
Gone
Can Race
Blood From
A
А
AA
AD
A or o
AM
B
30
BO
Boro
AB
AB
A,B,
AB, O
o
8
00
o

HELPPPP

Answers

Answer:

can you be more specific

Which type cell type primarily forms the lateral olfactory tract, which projects to many areas in the brain

Answers

Answer:

the mitral/ tufted cells


6. Which of the diagrams above BEST illustrates equilibrium?
a.A
b.B
c. C
d. D

Answers

D.

Equilibrium is a state of rest or balance due to the equal action of opposing forces. So I’m assuming it’s D because there is an equal number on the outside as inside.
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