In an important experiment, a radioactively labeled bacteriophage was allowed to infect bacteria. In a first trial, the phage contained radioactive DNA, and radioactivity was detected inside the bacteria. Next, phage containing radioactive protein was used, and the radioactivity was not detected inside the bacteria. These experiments led to the conclusion that:_____.
A) DNA is made of nucleotides.
B) genes carry information for making proteins.
C) the genes of this phage were made of DNA.
D) bacteriophages can infect bacteria.

Answers

Answer 1

Answer: C) the genes of this phage were made of DNA.

Explanation: the experiment described above wherein a radioactively labeled bacteriophage was allowed to infect bacteria ultimately led to the conclusion that the genes of the bacteriophage under study were made of DNA (a biopolymer of deoxyribonucleic acid, which is a type of nucleic acid composed of four different chemical groups, called bases: adenine, guanine, cytosine and thymine). Simply put, the experiment shows that the genetic material of the phage is DNA.


Related Questions

What will most likely increase if there is a high death rate? immigration emigration birth rate population

Answers

Answer:

Emigration

Explanation:

If there is a large number of deaths, then the population would move onto another area to find a mate, more food, and to be together to protect themselves from danger

The component of population that will most likely increase with a high death rate would be emigration.

When the death rate shoots up in a particular environment due to certain factors, organisms are bound to emigrate away from such environment to avoid death from reaching them.

It is a natural instinct of every living organism to respond to stimuli. A high death rate is a stimulus that organisms would want to move away from.

More on population growth can be found here:  https://brainly.com/question/2556439

Can someone please help its urgent

Answers

Answer:

a.

A - Canine...... for tearing meat.B - incisor.....for cutting food.C - molar...... for crushing food.D - premolar...... for crushing food.

Explanation:

Hope it helps.

Asthma is a respiratory disorder that can cause the airways to temporarily constrict, or get narrower. Which function of the respiratory system is most affected by the narrowing of the airways? A. water balance B. air filtration C. heat balance D. gas exchange

Answers

Answer:

Answer is D.

Explanation:

Asthma is a chronic inflammation that affects the airways, directly affecting the gas exchange of oxygen and carbon dioxide with the blood.

What is asthma?

It is a chronic disease of the lungs that inflames and narrows the airways.

Since this disease causes the airways to become inflamed and swollen, it reduces the amount of air that can move in and out of the lungs (gas exchange).

Therefore, we can conclude that asthma is a chronic inflammation that affects the airways, directly affecting the gas exchange of oxygen and carbon dioxide with the blood.

Learn more about asthma here: https://brainly.com/question/17481521

(Applicable answer gets brainliest) community is located in the desert, near an area with high winds. There is very little rainfall or clouds and no large rivers nearby. The people want to build a power plant that will not pollute. They are choosing among solar, biomass, or hydroelectric power. Write one to two sentences about each of these energy sources. Describe whether each energy source would meet their goals and whether it is a good energy source for their area.

Answers

Answer:

In the given scenario, solar power would be the best and the most effective kind of power plant to be constructed in the mentioned location. This is because the generation of pollution by using solar power is negligible. Apart from this, the use of solar power plants would be the most ideal in the given community resources as the community is receiving ample amount of sunlight and the presence of less cloud cover makes the application of solar power more feasible.  

If one considers biomass, then there would be the requirements of the things like crops, wood, alcohol fuels for burning so that energy can be generated, and with more than the required amount of sunlight and less or no irrigation, sources would make it hard to obtain the sources necessary for biomass power plant.  

The hydroelectric energy would not even be a viable option in the given scenario as the community has no accessibility of natural water sources and the hydroelectric power concept primarily works on water storage.  

Type your response in the box.
A student draws this model to show how humans evolved from ancestral primates. What are the pros and cons of
this model in regard to the theory of evolution? Explain how you'd make it more accurate. To create a scientifically
credible answer, use a credible website to research human evolution.​

Answers

Answer and explanation:

The model designed by the student is useful to explain in a simple way the question of the evolution of the homo gender (our gender), mainly in basic education, but it may seem inconsistent at higher educational levels.

Humans and chimpanzees, according to the theory of evolution, descend from a relatively recent (about 7 million years) common ancestor.

These same species, as well as lemurs, baboons and all other primate species, share an ancestor who lived longer.  Likewise, there is an even older ancestor that originated primates, bats, whales and all other groups of mammals .

The fact that chimpanzees have a DNA very similar to ours (about 98.5% similarity between code sequences) is because the successive evolutions from this common ancestor were not very drastic, besides the fact that they are in a branch more close to ours from the moment of separation of evolutionary lineages.

URGENTTTT!!
does a fire respond to its environment?​

Answers

Answer: no

Explanation: fire does not change its process to adapt to it's environment.

Oil _____.

is a renewable resource
can be used directly from the ground
is the least polluting energy source
must be removed from the earth using drills

Answers

The answer is the last one. Removing from drills. It’s a non renewable source.

Oil well is a renewable resource

can be used directly from the ground

is the least polluting energy source

must be removed from the earth using drills

Which of the following macromolecules is matched with its correct role in the cell?

Choose ONE answer:

A. Carbohydrates — key component of the cell membrane (lipid bilayer)

B. Lipid — chemical messenger

C. Lipid — storage of short-term energy

D. Nucleic acid — chemical messenger​

Answers

Answer: B


Explanation : carbohydrates are stored in the form of fats in the liver

Which is the correct sequence of events when the RER delivers transport vesicles to the Golgi apparatus? 1 – Small vesicles move material from one cisterna to the next. 2 – Enzymatic modification occurs. 3 – Arrival at the trans face. 4 – Arrival at a cisterna known as the cis face."

Answers

Answer:

The correct order of events when RER delivers transport vessicles to the Golgi apparatus are;

4,2,1,3

Arrival at a cisterna known as the cis face."

Enzymatic modification occurs.

Small vesicles move material from one cisterna to the next.

Arrival at the trans face.

Explanation:

Rough endoplasmic recticulum are flat sacs in the cytoplasm that help in the synthesis of protein. It vesicle or sac floats through the cytoplasm to the Golgi apparatus and is absorbed. The Golgi apparatus is an organelles in the cytoplasm that help to package protein into membrane bound organelle in the vessicles.

The vessicles that bud off join to the rough endoplasmic recticulum, Molecules travel through the Golgi apparatus through the vesicle transport till they get to the end of the assembly line at the biggest sacs from endoplasmic recticulum called the trans-Golgi.

Firstly, the particles arrive at cisterna known s Cis face. The cis face is the end of the organelle where substances enter from the endoplasmic reticulum for processing into the Golgi apparatus.

Then there is enzymatic modifications which is done by the activities of enzymes.

Small vessicles then Transport material from the cisterna.

It is then transported to the trans face. The trans face is where the particles leave in the form of smaller detached vesicles.

1. Hen recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Please explain your selection by using data from the simulation.

Answers

Uno no puede ir por la vida viviendo sin sentir, eso con El Paso del tiempo se premia a lo grande y podrás seguir construyendo a tus proyector y con mas fuerza

5. Plant cell has a cell wall made of:
(a) Protein
(b) Fructose
(c) Cellulose
(d) Fatty acids
6. The cell organelle that helps in respiration of the cell
is :
(a) Mitochondria (b) Lysosome
(c) Ribosome
(d) Centrosome​

Answers

Answer:

5. c) cellulose

6. a) mitochondria

Explanation:

5. Plant cell walls are mainly made of cellulose.

6. Cell respiration is the process where cells convert sugar into energy. The mitochondria is the powerhouse of the cell and is responsible for converting sugars into energy for the cell.

Answer:

5. (c) Cellulose

6. (a) Mitochondria

Explanation:

An environmental scientist might study the effect of soil pollution on plant growth.

Answers

True.

As...Environmental scientist studies the interaction of the living components of the ecosystem with the non living components.

The contamination in the soil will affect the growth of plants, this will also be studied by the environmental scientist.

The Growth of the plant depend on the quality of soil in which it is grown so it will also be a concern for the environmental scientist.

Answer:

True

Explanation:

I just took the test on edge

Dentre as alternativas a seguir,a única que é uma mistura é: ( )Um átomo de oxigenio ( )Àgua destilada ( )O ar atmosférico ( )O gás ozoio me ajudem por favor...

Answers

Answer:

Atmospheric air  

Explanation:

Atmospheric air is a mixture of nitrogen, oxygen, argon, and small amounts of other gases.

A is wrong. A flask of oxygen atoms has nothing else in it. The O atoms are a pure substance.

B is wrong. A flask of distilled water contains only water. The water is a pure substance.

D is wrong. A flask of ozone contains only ozone. Ozone is a pure substance,

Consider the diagram that depicts the lysogenic and lytic cycles.

The steps of the lysogenic cycle are shown. In Step A, attachment and entry occurs. In step B, the provirus is formed. In step C, the cell begins to divide. In step D, the provirus leaves. In step E, the virus is replicated and assembled. In step F, lysis and release of the virus occurs.

In which step of the diagram are new viruses assembled?
step B
step C
step E
step F

Answers

The diagram is not given in the question, so the diagram is attached below: Answer:

step E

Explanation:

The viruses are assembled in Step E.

The assembly of the virus occurs in nucleus or cytoplasm of host cell. In step D, viral components of virus are synthesized and in the next step E, The viral component assembled into mature virus.

Hence, the correct option is "Step E".

Answer:

C. step E

Explanation:

just took the test from E D G E and got 100% :D

hope this helps ya'll

Blood is supplied to the myocardium by
A) the coronary sinus.
B) the coronary arteries.
C) arteries that branch off the subclavian arteries.
D) contact with blood in the pumping chambers.
E) arteries that branch from the pulmonary arteries.

Answers

Answer:

B) the coronary arteries

Answer:

B

Explanation:

the artery of coronary circulation which nourishing myocardium

Levels of Organization of Living Things Now that you have learned about tissues, organs, and systems, use this graphic organizer to jot down your knowledge of atoms and cells, making connections to what your just learned about tissues, organs, and systems. DONT TRY TROLLING OR SCAMMING I WILL REPORT YOU

Answers

Answer:

Levels of Organization of Living Things is the hierarchy of complex biological structures arranged from the simplest to complex structures.

Levels of Organization of Living Things of the given biological structures are as follows:

Atoms: Acellular level, that is the smallest unit of all the organisms.

Cells: Cellular level, that is basic and functional unit of all the organissm.

Tissues: Multicellular level, that are a functional group of cells.

Organs: Multicellular level, that are functional group of tissues.

Organ System: Multicellular level, that are functional group of organs.

Organism: Ecological levels and they are basic living system made up of at least one cell.

Drag each label to the correct location. Identify the cell organelles found only in plant cells and those found in both animal and plant cells. nucleus cell wall chloroplast Golgi apparatus cell membrane ribosome

Answers

Answer:

Plant cell: chloroplast, cell wall

animal and plant cells: nucleus, cell membrane, ribosome, golgi apparatus

Explanation:

The organelles that are specific to the plant cell only among the listed organelles include chloroplast and cell wall, while those found in both animal and plant cells include the nucleus, cell membrane, ribosome, and golgi apparatus.

The chloroplast contains the green pigment (the chlorophyll) that is present in all green plants. It is the organelle that confers greenness to plants and is therefore absent in animal cells. The rigid cell wall is only found in plant cells and this confers a kind of hexagonal shape to the cell, unlike the animal cell that lacks a rigid cell wall and therefore, shapeless.

All eukaryotic cells, including plant and animal cells, posses nucleus. It is an organelle that houses the genetic materials of the cell and acts as the control center of the cell. The cell membrane is also common to both cell and acts as a selectively permeable membrane to the cells. The ribosome is the organelle responsible for protein synthesis in both plant and animal cells while the golgi apparatus plays an important role in secretory pathway in both cells.

Answer:

Explanation:

A sexually reproducing animal has two unlinked genes (on separate chromosomes), one for head shape (H) and one for tail length (T). Its genotype is HhTt. Which of the following genotypes is possible in a gamete from this organism assuming no errors in meiosis?
a) HT
b) Hh
c) HhTt
d) T
e) tt

Answers

Answer:

a) HT

Explanation:

This question shows an animal with two distinct unlinked genes i.e. on different chromosomes. One gene codes for head shape and the other for tail length. The gene for head shape possess alleles H and h, while gene for tail length possess alleles T and t.

According to Mendel's law of independent assortment, the alleles of a gene will separate into gametes independently of the alleles of another gene. This occurs in such a way that each gamete will contain only one allele from a gene.

Based on this principle, an animal with genotype HhTt will undergo meiosis and randomly produce gametes with the following allelic combinations: HT, Ht, hT, and ht. As seen in the gametes, only one allele of a gene occured in a gamete at a time.

Therefore, HT is the genotype possible in a gamete of parent: HhTt.

Which of the following produces the greatest amount of carbon dioxide?
Who Is Producing Carbon Dioxide?
Other 14%
Electronics 6%
Refrigeration 8%
Transportation
Heat and Air
Conditioning
46%
Factories
Water Heating 13%
Businesses
Homes
Lighting 13%
A. Heating and cooling
B. Lighting
C. Refrigeration
D. Electronics

Answers

Answer:

no 1. A is the answer

Explanation:

hope this helps and plz mark me as the brainliest

The following produces the greatest amount of carbon dioxide is Heating and cooling.

What are the main characteristics of carbon dioxide?

Carbon dioxide is a chemical compound made up of two oxygen atoms and one carbon atom. The chemical representation is CO2. Carbon dioxide was discovered by Scotsman Joseph Black in 1754.

Main sources and uses of carbon dioxide is emitted during the burning of fossil fuels (coal, power plant gas, oil, vehicles); Deforestation and fires; Washing of cellulose pulp and paper.

See more about carbon dioxide at brainly.com/question/3049557

Question 8 of 10
What is the name of a group of connected and related organisms?
O A. Matter
ОО
O B. Flow
O C. System
D. Energy​

Answers

Energy Energy Energy Energy

Differentiate between parenchyma collenchyma and sclerenchyma in tabular form

Answers

Explanation:

your is your answer can u follow me

which part of a plant serves as a home for nitrogen-fixing bacteria

Answers

Answer:

Mainly the root nodules serve as a home for nitrogen fixation

Explanation:

Write down three functions of the blood

Answers

Answer:

blood has 3 main function which is Transport protection and regulations.

Answer:

Transport, protection, regulations.

Explanation:

How do the frequencies of the waves compare?
O Wave A has a lower frequency because it has a
smaller amplitude.
O Wave A has a higher frequency because it has a
shorter wavelength.
The waves have the same frequency because they
have the same wavelength.
O The waves have the same frequency because they
have the same amplitude.

Answers

Answer:

O. Wave A has a higher frequency because it has a  shorter wavelength.

Explanation:

Wavelength refers to the distance between two crests while frequency refers to the number of waves passes through a specific point per second. Frequency and wavelength are inversely proportional to each other. Inversely proportional means if one increases, the other decreases and vice versa. If the frequency of the wave is higher so its wavelength becomes shorter and if the frequency of the wave is shorter so its wavelength is higher.

Answer: B.

Explanation: Wave A has a lower frequency because it has a longer wavelength.

What does the immune system protect the body against? changes of the internal body temperature changes in the temperature of environment changes caused by harmful pathogens changes in the pH of the blood

Answers

Answer:

changes caused by harmful pathogens

Explanation:

The immune system is the body's defense system. It protects the body from things that can harm it such as bacteria, viruses, fungi, and toxins.

Hope this helps.

Answer:

its c

Explanation:

Plants that are adapted to live on land ( botanical term)​

Answers

Answer:

"Embryophytes " is the perfect solution.

Explanation:

Each of some kind of plant sub-system that maintains the embryo inside the maternal tissues, including the tracheophytes as well as bryophytes.The other most common species of organisms or plants seem to be the surface plants including embryophytes, furthermore precisely Embryophyta or Metaphyta. They are considered as 'land plants' but even though, in comparison to the connected green algae, those who continue living primarily throughout terrestrial environments, mainly aquatic ones.

Suppose that an unusually high degree of aurora kinase activity is observed in the cervix. What could we reasonably conclude about C5M treatment efficacy across all cervical cancer cell lines, using this new information and the data within the passage

Answers

Answer:

The division of cervical cancer cells will be inhibited  

Explanation:

Aurora kinases are a type of serine/threonine kinase enzymes that play critical functions during cell proliferation, and they are recognized to be potential targets in cancer therapy. The benzo[e]pyridoindole (C5M) agent is a hydrosoluble inhibitor of aurora kinases capable of inhibiting cell proliferation. C5M induces mitotic arrest by faulty (no separation) of the sister chromatids during cell division, thereby eventually leading to polyploidy and finally triggering cell death. It has been shown that C5M acts to prevent the entry in mitosis by inhibiting histone 3 (H3) phosphorylation of aurora kinases.

A small number of birds arrive on an island from a neighboring larger island. This small population begins to adapt to the new food plants available on the island, and their beaks begin to change. About twice a year, one or two more birds from the neighboring island arrive. What effect do these new arrivals have

Answers

Answer:

The environmental variation

Explanation:

Environmental variation has a big role for their beaks to change in a size and shape , that means if the birds like the condition of the place specially birds like to eat cactus fruits that is the reason for their beak rapid change

Which of the following mutations is NOT a point mutation? A. Silent mutation B. Nonsense mutation C. Missense mutation D. Insertion mutation

Answers

the answer is Insertion mutation :)

(search up "types of mutations")

Point mutation is the alteration of the single nucleotide base in the sequence. Insertion mutation is not a type of point mutation. Thus, option D is correct.

What is point mutation?

A point mutation is a modification and change in the base of the genetic sequence. In this type of mutation, only a single nucleotide base is altered. Point mutations are categorized as transition mutations and transversion mutations.

Silent, Nonsense, and missense are the transversion type of point mutation. In this mutation, the purines get altered by pyrimidines and vice versa. On the other hand, insertion mutation is the frameshift mutation.

Therefore, insertion is not a type of point mutation.

Learn more about point mutation here:

https://brainly.com/question/26486518

#SPJ2

How are penicillin antibiotics are made?

Answers

Answer:

penicillin?

Explanation:

Answer:

Penicillium mold naturally produces the antibiotic penicillin. 2. Scientists learned to grow Penicillium mold in deep fermentation tanks by adding a kind of sugar and other ingredients. This process increased the growth of Penicillium.

Explanation:

Hey..... ngl thats kinda sus.......

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