In the Hershey-chase experiment, what happened to the bacteria that had been infected by viruses that had radioactive DNA, and to the bacteria that had been infected with viruses that had been marked with radioactive proteins?

Answers

Answer 1

Answer:

The bacteria infected with viruses that had radioactive DNA had become radioactive. The bacteria that had been infected with viruses marked with radioactive proteins were not radioactive.

Explanation:

The rest of the answers:

1.2

2.3

3.2

4.1

5.b


Related Questions

Describe the role of membrane technologies in water purification

Answers

Hi :)

The role of membrane processes include desalting, disinfection by-product control, disinfection, clarification and removal of synthetic and inorganic chemicals

Hope this helps!

ln certain species of plant, one purebred
variety has hairy leaves and another pure-
bred variety has smooth leaves. A cross of
the two varieties produces offspring that all
have smooth leaves. Predict the ratio of
phenotypes in the F2, generation.

Answers

Answer:

If crossing plants with hairy leaves and smooth leaves produces plants with smooth leaves in F1, the phenotypic ratio of plants with smooth leaves:hairy leaves in F2 will be 3:1.

Explanation:

It is assumed that, if the first descendants of this cross presented smooth leaves, this represents the dominant characteristic.

If in the crossing of two plants, the parental generation consists of two pure plants for the characteristic aspect of the leaf, one with hairy leaves (s) and another with smooth leaves (S), the first filial generation (F1) will be of hybrid plants with a phenotype of smooth leaves (Ss), which represents the dominant characteristic.

Parental Generation:

Smooth leaves SSHairy leaves ss

Punnett Square  F1

Alleles      S        S

s              Ss       Ss

s              Ss       Ss

F1 : 100% plants with smooth leaves Ss

The second filial generation (F2) results from the crossing of F1 individuals, so:

Punnett Square  F2

Alleles      S        s

S              SS      Ss

s              Ss       ss

The result of the offspring in F2 is:

Genotype

Pure smooth leaves SS 25%Smooth hybrid leaves Ss (heterozygous) : 50%Pure hairy leaves ss:  25%

Genotipic ratio: pure smooth leaves:hybrid:pure hairy leaves  1:3:1

Phenotype

Smooth leaves SS + Ss:  75%Hairy leaves  ss: 25%

So the phenotypic ratio of smooth leaves: hairy leaves will be 3:1.

list the main advantage of having a mechanical heart ​

Answers

Answer:

help to the patients with severe biventricular failure

Explanation:

The artificial heart is not close to real, of course, but its function saves patients with severe heart failure and those who are not on the list for transplantation.

As there is no heart pocket, there is no danger of infection, and it helps treat people with systemic diseases

     

The most damaging effect of Hurricane Sandy was the fires. Question 4 options:

True

False

Answers

Answer:

false

Explanation:

the most damaging effect of hurricane sandy was the flooding

----Transcription- key players and identifying the process
--Translation- key players and identifying the
process

DON"T FOOL AROUND, IF YOU DON"T KNOW THE ANSWER, PLEASE DON"T ANSWER. THANK YOU!!!!

Answers

Answer:

What does that mean? :)

Explanation:

The cells of a puppy and the cells of a dog are the same size. Why is a dog larger?

Answers

Answer:

The Dog is has much more cells because it's bigger.

Explanation:

when a puppy grows up to be a dog, it gains more cells because it GROWS up and becomes bigger than the puppy's original size.

The process of forming ATP is? A) Digestion. B) Cellular Respiration. C) Metabolism. D) nutrition.

Answers

Answer:

[tex]\boxed {\boxed {\sf B. \ Cellular \ respiration}}[/tex]

Explanation:

First, let's analyze each process.

A. Digestion

This is the process of breaking down food.

B. Cellular respiration

This is the process of converting glucose and oxygen to carbon dioxide, water, and ATP.

C. Metabolism

This isn't really a process. It's the collection of all the chemical reactions in the body to keep the body functioning.

D. Nutrition

This term also isn't a process. Nutrition involves food, nutrients, and health.

We are looking for the process that forms ATP. Therefore, the best answer choice is B. Cellular respiration

The process of forming ATP is Cellular Respiration. Therefore option B is correct.

The process of forming ATP (Adenosine Triphosphate) is primarily through Cellular Respiration.

ATP is the main energy currency in cells, providing the energy needed for various cellular activities.

Cellular respiration is a series of metabolic reactions that occur in the mitochondria of cells, where organic molecules (such as glucose) are broken down and oxidized to release energy.

This energy is used to synthesize ATP from ADP (Adenosine Diphosphate) and inorganic phosphate (Pi).

Through cellular respiration, cells efficiently convert the energy stored in food molecules into a readily usable form of energy (ATP).

Which powers essential cellular processes, including muscle contraction, active transport, and synthesis of macromolecules.

Therefore option B Cellular Respiration is correct.

Know more about Cellular Respiration:

https://brainly.com/question/29767249

#SPJ6

What is a major difference between the
structure of a cell wall and a cell
membrane?

A. The cell membrane is rigid.

B. The cell wall is rigid.

C. The cell wall is flexible.

Answers

Answer: a


Explanation: cel walls have thick and rigid structure with a fixed shape while cell membranes have a thin and delicate structure

Answer:

a

Explanation:

What’s the definition of circulatory system

Answers

Answer:

Circulatory system: The system that moves blood throughout the body. The circulatory system is composed of the heart, arteries, capillaries, and veins. This remarkable system transports oxygenated blood from the lungs and heart throughout the body via the arteries.

Explanation:

hope this helps love!! <3

Answer:

Moves blood around your body

Explanation:

What is the best explanation for why governments collect taxes?

Answers

Explanation:Governments pay for these services through revenue obtained by taxing three economic bases: income, consumption and wealth. The Federal Government taxes income as its main source of revenue. State governments use taxes on income and consumption, while local governments rely almost entirely on taxing property and wealth.

Answer: a) to fund services and programs

Explanation: ed 2021

infected mosquitoes landed on socks three times more often than uninfected mosquitoes. Explain how this information can be used to reduce the spread of malaria​

Answers

Answer: Possibly increase the production of socks

Explanation: As it implies, the mosquitoes that have sickness land on socks more often. Based on this information, since we know that malaria comes from mosquitoes, we can increase the production of socks, as that will separate most of the infected mosquitoes with the other mosquitoes, as most of the infected ones will fly over to the sock. With this scenario, we can bait the mosquitoes and know which ones are infected

Which statement is NOT a part of the cell theory?
Cells come from preexisting cells.
Cells are the basic unit of function of living things.
Cells are the basic unit of structure of living things.
Cell parts such as chloroplasts are self-replicating.

Answers

Answer:

Cells such as chloroplasts are self replicating

Explanation:

a chloroplast is not a cell its an organelle.

Cell Theory is a scientific theory proposed by Schwann in the year 1839. The cell theory has primary three postulates, which are used to describe the functioning of cells.

The correct answer is:

Option D. Cell parts such as chloroplasts are self-replicating.

The postulates of the cell theory are:

1. The cell theory states that all living cells arise from pre-existing cells.

2. The cells are the basic structural and functional unit of life.

3. The hereditary information is passed on from cell to cell, and the energy flows within the cell.

Thus, the statement that is not a part of cell theory is that chloroplast are self-replicating.

To know more about cell theory, refer to the following link:

https://brainly.com/question/1468725

In 1898 Friedrich Loeffler and Paul Frosch found evidence that the cause of the highly contagious hoof-and-mouth disease in livestock was a microscopic infectious particle. It was discovered that this particle requires a host cell to reproduce.

Which pathogen is most likely responsible for causing hoof-and-mouth disease in livestock?

A bacterium, because it is contagious -1
A fungus, because it infects livestock -2
A protist, because it is microscopic -3
A virus, because it requires a host cell to reproduce -4

Answers

Answer:

31 In 1898 Friedrich Loeffler and Paul Frosch found evidence that the cause of the highly contagious hoof-and-mouth disease in livestock was a microscopic infectious particle.

Explanation:Hopefully its right!

If you were running a marathon which type of muscle fibers would be most useful to you?

Answers

Answer:

slow-twitch

Slow twitch muscle fibres: Contract slowly, but keep going for a long time. Fast twitch muscle fibres: Contract quickly, but rapidly get tired. Endurance or speed. Slow twitch muscle fibres are good for endurance activities like long distance running or cycling. They can work for a long time without getting tired

Which of the following is NOT a type of galaxy?
spherical
elliptical
spiral
irregular
barred-spiral

Answers

Answer:

spherical, i think

Explanation:

Answer:

A Spherical galaxy is not a type of galaxy.

Explanation:

elliptical , spiral, irregular,  and barred-spiral, are all examples of the different types of galaxies there are in the universe.

pls helpppp: list any chemical process other then photosynthesis and respiration

Answers

Answer:

Transpiration

transpiration i hope its good

Which compound contains nitrogen? (1 point)
O glucose
O starch
O water
O amino acid

Answers

Answer:

amion acid

Explanation:

this is the right answer I think

Answer:

amino acid

Explanation:

i just did this test and chose amino acids and got it correct

By which process does yeast produce the carbon dioxide responsible for bread rising?
A. Photosynthesis
B. glycolysis
C. cellular respiration
D. dehydration synthesis

Answers

Answer:

C. cellular respiration

Explanation:

Yeast produces the carbon dioxide responsible for bread rising by CELLULAR RESPIRATION

WHICH ORGANISM IS CALLED YEAST?

Yeast is an eukaryotic unicellular organism that belongs to the kingdom fungi.

Cellular respiration is the metabolic process by which living organisms obtain energy in form of ATP by breaking down organic and inorganic substances.

HOW DOES YEAST RESPIRE?

Yeast respires anaerobically via a kind of cellular respiration called FERMENTATION. In the process of fermentation, glucose is broken down to produce ethanol and carbon dioxide (CO2).

In bread making, yeast is used to make dough rise. The carbon dioxide (CO2) produced during cellular respiration is what is responsible for the rising of bread.

Learn more at: https://brainly.com/question/3126347

Sea turtles spend most of their lives at sea feeding on jellyfish. When it is time to lay their eggs, mature females come ashore. They dig nests in the sand along the coast, lay their eggs, and then return to the sea. The data below show the changing sea levels since the late 1800s.


If the current trend shown in the graph continues, what prediction is most likely regarding the future of sea turtles?


a. Fewer jellyfish will wash up on the beach for the turtles to feed on.


b. More predators will be found on the beaches to threaten the baby turtles.


c. The baby turtles will have to travel farther to reach the ocean.


d. The beaches on which turtles currently lay their eggs may go underwater.

Answers

Answer:

d. The beaches on which turtles currently lay their eggs may go underwater.

Explanation:

According to the graph, the beaches on which turtles currently lay their eggs may go underwater due to increase sea level with the passage of time. In the graph, we can see that sea level increases from 1880 to 2014 and the main reason for this increase is the climate change. Due to global warming the water present on the glacier starts melting and thus increase in sea level occurs so the beaches on which turtles currently lay their eggs may go underwater.

PLEASE HELP!!! FOR 80 POINTS AND I WILL GIVE BRAINLIEST!!!
Submit your care plan here. Be sure to include the following:

an explanation of type II diabetes (What goes wrong?)
a description of how to control type II diabetes (without insulin)
a description of a diabetic diet, with 3 days of sample meal plans
a description of the importance of exercise in controlling diabetes and a sample work-out routine

Answers

A chronic condition that affects the way the body processes blood sugar (glucose).

With type 2 diabetes, the body either doesn't produce enough insulin, or it resists insulin.

2. Two common uses of nuclear
technology in medicine are cancer
treatments and
A.IRI
B.MRI
C.NMR

Answers

Answer:

the answer would be MRI, I believe.

Explanation:

"Magnetic resonance imaging is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves to generate images of the organs in the body."

Which idea explains Darwin’s observations about Galapagos Islands finches?

A) biological species concept

B) ecological species concept

C) endangered species extinction

D) sympatric speciation

Answers

Answer:

I think the answer is A) biological species concept

It is unethical for a doctor to _____.

release patient information without consent
use genetic testing to diagnose genetic disorders
release patient information with the consent
treat patients with genetic disorders

Answers

Answer: release patient information without consent

Explanation:

The information obtained from patient during the process of diagnosis should be kept under confidentiality between the hospital staff or doctor and the patient. The information can be disclosed without patient's consent in two conditions- if the disclosure is necessarily required by law or in case of public interest. Except these two conditions if the information is disclosed without the patient's then the practice will be considered as unethical.

Hope this helps have a wonderful day!

A - Release information without the patient’s consent. - HIPPA laws violated

Why is cellular respiration called an aerobic process?

What are the products and the reactants for cellular respiration?

Where is most of the ATP made during cellular respiration?

What must happen in the cell’s cytoplasm before cellular respiration?

What process happens within the mitochondria as part of cellular respiration?

Answers

Answer:

after reading the comments I can conform that the first one is correct

Explanation:

I had a similar question on a test

Answer:

z

Explanation:

z

If the thread of the kite is broken in the sky,what type of motion will the kite get

Answers

non uniform motion

this is the answer

hope helpful for u

What threatens the existence of a chimpanzee species?

Answers

Answer:

The primary threats to chimpanzees are habitat destruction, hunting, and disease. The increasing human population is encroaching ever deeper into even protected areas of chimpanzee habitats, and large scale logging is now a major threat to the forest primates of Africa.

Explanation:

Answer:

* Habitat destruction

* Hunting

* Disease

Which of the following objects would require the use of a large-scale model? (2 points) An atom A car engine A frog's heart The Mississippi River

Answers

Answer:

1. An atom is an object that needs a large-scale model. A large-scale model must be bigger than the object itself.

2. The correct answer among the choices provided is option C. It is a theory that light travels at 300,000 kilometers per second.

Explanation:

brainllst


Read the excerpt from "Bone Detective," by Lorraine Jean Hopping. While the dentist worked on the tiger’s teeth, Diane made an alginate impression of one of its huge paws. Then, the dentist used two cupped hands to pull the tongue out of the big cat’s mouth. The heavily muscled organ was almost as long as her foot. With the dentist still holding the tiger tongue in both hands, Diane quickly went to work. The pink surface was rough, like sandpaper, but floppy and wet. She coated the top with alginate and waited for it to set. Her 15 minutes were almost up. The tiger, so calm and soft, would soon wake up and be dangerous again. Slowly and carefully, Diane peeled off the soft impression to avoid tearing it. Based on this excerpt, what is the author’s attitude toward Diane France? The author feels Diane is rough and impatient in her work with the tiger. The author feels Diane is skillful and careful in her work with the tiger. The author feels Diane is anxious and distracted in her work with the tiger. The author feels Diane is light-hearted and humorous in her work with the tiger.

Answers

Answer:

2nd oneㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

it says carefully she helps the tigerㅤㅤㅤ

Answer:

The answer is B. The author feels Diane is skillful and careful in her work with the tiger.

Explanation:

took the test on edge

Can someone pls help me with this (8th grade science)

Answers

Answer:

A

Explanation:

As he kicks the ball the speed increases, where he kicks the ball also is a factor, since he kicks it in the same direction that is why it is choice A.

what are the three primary methods scientists use to group organisms into monophyletic clades? please provide examples for each. which has caused the major reorganization of phylogenies, i.e. the fall of the kingdoms, and why only recently?

Answers

Answer:Cladistics (/kləˈdɪstɪks/, from Greek κλάδος, kládos, "branch") is an approach to biological classification in which organisms are categorized in groups ("clades") based on the most recent common ancestor.

Explanation: Modern taxonomists seek to employ classification schemes that are consistent with the underlying evolutionary relationships among species. As shown below, phylogenetic analyses present a way to test existing Linnaean classifications (some of which predate widespread acceptance of the fact of evolution) and to determine which classifications are consistent with evolutionary history, and which require modification.

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