To determine whether dna replication is semiconservative, conservative, or dispersive, meselson and stahl labeled e. Coli dna with a regimen of heavy nitrogen for one round of replication and then transferred these cells to a light nitrogen regimen for two more rounds of replication. Which statement would not have been true within the context of this experiment?.
Answers
Meselson and Stahl labeled E. coli DNA with a regimen of heavy nitrogen for one round of replication and then transferred these cells to a light nitrogen regimen for two more rounds of replication to determine whether DNA replication is semiconservative, conservative, or dispersive.
Within the context of this experiment, the statement that wouldn't have been true is "All the DNA molecules are newly synthesized in each round.Semiconservative DNA replication means that half of the original parent DNA molecule is conserved, while the other half is newly synthesized after each round of replication. Conservative DNA replication indicates that both the parent DNA molecules are conserved after each round of replication, and two newly synthesized daughter DNA molecules are created.
Dispersive replication means that each daughter DNA molecule is a mix of both new and old DNA after each round of replication. Meselson and Stahl used density gradient centrifugation to demonstrate that DNA replication is semiconservative. Within the context of this experiment, if all the DNA molecules are newly synthesized in each round, then this would have indicated that DNA replication is a dispersive replication. This statement would not have been true within the context of this experiment.
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Related Questions
what is variations.
Answers
Answer:
1 : a change in form, position, or condition Our routine could use some variation.
2 : amount of change or difference Scientists record the variations in temperature
Explanation:
i hope it helps mark me brainliest^^
Which of the following evidence supports the close evolutionary relationship between birds and other reptiles? (more than one answer)
Birds and other reptiles share a common ancestor.
Bords and other reptiles are ectothermic.
Birds and other reptiles lay their eggs on land.
Birds are the descendants of reptiles.
Answers
The evidence supporting the close evolutionary relationship between birds and other reptiles includes the following:
1. Birds and other reptiles share a common ancestor. 2. Birds and other reptiles lay their eggs on land. 3. Birds are the descendants of reptiles.
Birds and other reptiles share a common ancestor and birds being the descendants of reptiles indicates their close evolutionary relationship. Additionally, both birds and reptiles laying their eggs on land is a shared characteristic supporting their relatedness. Yet it is incorrect to say that "Birds and other reptiles are ectothermic," as birds are endothermic (warm-blooded), which sets them apart from other reptiles.
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Which one of the following observations did Darwin first make during his discovery of evolution? a. The ability of individuals to survive and reproduce is not equal. b. There is variation in inherited traits. c. Individuals who reproduce more leave more offspring. d. The unequal ability to reproduce leads to the accumulation of favorable traits in a population.
Answers
The correct option is (b) There is variation in inherited traits.
Darwin made the following observations that informed his theory of natural selection: Overproduction, Variation, Selection, Survivors.
What were the darwins observation?The first observation is overproduction. This shows that every species has more offspring than will grow up to be adults. Think about all the fish eggs that are produced every year. This suggests that organisms should constantly reproduce, but they do not because mechanisms like food competition, predators, and disease exist to limit population growth. Darwin was able to infer from this that there is a struggle for existence. Darwin's second finding was variation. This suggests that members of the same species exhibit a range of features. For instance, the pattern and color of the stripes on zebras vary. Scales on goldfish might be entirely gold, entirely orange, entirely brown, or a mix of all three.Learn more about the Darwin's theory with the help of the given link:
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Which are the primary arteries that supply the majority of the oxygenated blood to the brain?.
Answers
Answer:
internal carotid arteries
Identify the 2 primary consumers in this food web.
A-Foxes and Frogs
B-Decomposers and Rabbits
C-Caterpillars and Frogs
D-Caterpillars and Rabbits
Answers
Answer: Caterpillars and Rabbits
Explanation:
Primary consumers are Herbivores who consume Primary producers.
Hope this helps!
Answer:
I believe it is caterpillars and Rabbits
which of the following is false concerning gonorrhoeae? neisseria gonorrhoeae (gonococcus, gc) is a fastidious g- diplococcus. can be selectively isolated on modified thayer-martin (i.e., supplemented hocolate antibiotics vcn). penicillin resistance, then fluoroquinolone resistance; now cdc dual therapy is i.m. ceftriaxone
Answers
Answer:
look it up girl
Explanation:
Nerapoorheer ( COCCUS GO is a fastidious O-diplococcus B. Can be selectively isolated on Modified Thayer Martin (ie, supplemented chocolate
+ antibiotics VCN).
The false statement concerning Neisseria gonorrhoeae (gonococcus, GC) is that it can be selectively isolated on modified Thayer-Martin (i.e., supplemented hocolate antibiotics vcn).
Neisseria gonorrhoeae is indeed a fastidious gram-negative diplococcus. However, the false part of the statement is the reference to "hocolate antibiotics vcn." The correct term should be "chocolate agar" or "Thayer-Martin agar," which is a selective growth medium used for isolating N. gonorrhoeae. The medium typically contains antibiotics (e.g., vancomycin, colistin, and nystatin) to inhibit the growth of other bacteria and allow for selective isolation of N. gonorrhoeae.
Additionally, it is true that penicillin resistance was followed by fluoroquinolone resistance in N. gonorrhoeae. The CDC currently recommends dual therapy with intramuscular ceftriaxone as a treatment option for gonorrhea.
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2. Explain why group behavior, such as schooling, is more about individual advantage than group advantage:
Answers
Answer:
In this particular group behavior, school is more about individual advantage because it focuses more on your own effort or performance rather than teamwork or of your classes performance for example. You accomplish every step or task on your own. For instance when you take a test, you are INDIVIDUALLY taking the test and will be graded based on your individual performance rather than relying on other people.
Explanation:
hope this helps have a great day:)
Observe the three sections of the photo below. Which section of the photo is made up of the most number of pixels? Segment ___
Please Help!! I need the answers quick
Answers
segment C
because there are more colors that hav to be made by the pixles for the image to show
more detail also means more pixles
HELP PLS: NEED ANSWER ASAPPPPPPPPPPPP <3
1. Explain acid deposition. Your explanation should include the following:
• The sources of acid deposition
• The chemical equations involved in acid deposition formation
• An explanation of the types of acid deposition
• A discussion of the effects of acid deposition
• A drawing that shows the sources, formation, and precipitation of acid deposition
Answers
Acid deposition, also known as acid rain or acid precipitation, refers to the deposition of acidic substances from the atmosphere onto the Earth's surface. It is primarily caused by emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) from human activities, particularly the burning of fossil fuels such as coal and oil in power plants, industrial processes, and vehicle emissions.
The chemical equations involved in acid deposition formation are as follows:
1. Formation of sulfuric acid (H2SO4):SO2 (sulfur dioxide) + O2 (oxygen) + H2O (water) → H2SO4 (sulfuric acid)
2. Formation of nitric acid (HNO3):NOx (nitrogen oxides) + OH (hydroxyl radical) → HNO3 (nitric acid)
Acid deposition can occur in two main forms: wet deposition and dry deposition.
1. Wet deposition: This occurs when acidic compounds in the atmosphere combine with water vapor to form acids that are then brought down to the Earth's surface through precipitation, such as rain, snow, sleet, or fog.2. Dry deposition: In this form, acidic compounds settle directly onto the Earth's surface without the involvement of precipitation. These compounds can be in the form of gases, particles, or dust, which are deposited onto plants, buildings, soil, and water bodies.The effects of acid deposition can be significant and wide-ranging:
1. Environmental impact: Acid deposition can acidify soil and bodies of water, leading to detrimental effects on aquatic ecosystems and plant life. It can harm fish, amphibians, and other aquatic organisms, as well as affect the pH levels and nutrient availability in soil, hindering plant growth.2. Damage to infrastructure: Acidic substances in acid deposition can corrode and damage buildings, statues, bridges, and other structures made of materials such as limestone, marble, and metals.3. Human health concerns: Acid deposition does not directly pose a significant health risk to humans. However, the pollutants that contribute to acid deposition, such as sulfur dioxide and nitrogen oxides, can contribute to respiratory problems and aggravate existing respiratory conditions in susceptible individuals.\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)
♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
Which is a common physiological reaction to a nerve agent?
Answers
Answer:
A nerve agent can cause a variety of physiological reactions in the human body. Some common reactions include respiratory issues such as difficulty breathing, coughing, and chest tightness. Other reactions may include muscle twitching, seizures, and loss of consciousness. A nerve agent can also affect the digestive system, causing nausea, vomiting, and abdominal pain. Overall, nerve agents can be very dangerous and effective weapons that can cause serious harm to those who are exposed to them.
Explain what methanes attraction must be given that it took years to evaporate
Answers
The liquid methane's phase change could have been brought on by an increase or decrease in energy.
What causes liquid methane to change phase?The liquid methane could have changed phases due to an increase or decrease in energy.
The molecules' kinetic energy and perhaps even their freedom of movement would have grown if the energy had increased. The molecules' kinetic energy and perhaps their freedom of motion would have diminished if the energy level dropped. Since the lake vanished during Titan's summer, when more energy was being transmitted into it than at other times, the lake must have evaporated rather than frozen. molecules of the liquid
Each other was shifted around. The molecules of the lake might now travel independently of one another if it evaporated.
The molecules in the lake would only be able to move in place if it froze. During a phase change, neither the quantity nor the size of molecules changes.
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It's possible that a rise or fall in energy caused the liquid methane to shift phases. The length of time it typically takes for a molecular to be expelled from the environment is known as residence time.
What is the purpose of methane?Unscented, colorless, and combustible, methane is a gas. It is mostly used as fuel to produce heat and light. It is also employed in the production of organic compounds. Methane is frequently found in garbage, marshes, septic tanks, and sewers and can be produced as natural materials decompose.
Is liquid methane explosive in any way?According to thermodynamic, superheated liquids may sustain explosions similar to those found in chemical explosives. At 1 atmosphere, liquid methane was heated to a temperature 50 K well beyond its boiling point.
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OA. Pill bugs, crickets, and grass
OB. Flies, crickets, and marigolds
C. Grass, pill bugs, and marigolds
D. Pill bugs, crickets, and flies
Answers
An isopod, often known as a terrestrial crustacean, is a type of non-insect arthropod and is the scientific name for the pillbug, Armadillidium vulgare (Latreille).
What other names are given to pill bugs?When I was a child, I named them pill bugs, while other people called them potato bugs. They may also go by the names tomato bugs, sow bugs, wood bugs, armadillo bugs, doodle bugs, roly-polies, carpenters, or boat builders in the United States and Canada.
Do pill bugs pose a threat?There are no known risks that pill bugs bring to people. They don't spread disease or taint food. Due to its propensity to roll into a ball when disturbed, it is frequently referred to as a roly-poly.
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Which of the following domains contains organisms that are adapted to life in harsh environments?
A) domain Eukarya
B) domain Archaea
C) domain Plantae
D) domain Bacteria
E) domain Animalia
Answers
Answer:
B
Explanation:
Many species in Archaea actually require extreme temperatures and conditions to grow
The domain that contains organisms that are adapted to live in harsh environments is the domain Archaea. The correct option is B).
What is the domain Archaea?Any single-celled prokaryotic organism without a definite nucleus is referred to as an archaea, and they differ from bacteria in a number of important ways at the molecular level.
Archaea have membranes that are formed of branching hydrocarbon chains, many of which also contain rings, connected to glycerol via ether bonds, as opposed to bacteria and eukaryotes.
The microorganisms in the archaea domain are not typical of natural habitats. Instead, they can be found in severe and extreme environments like hot springs, salty environments, acidic conditions, etc.
Therefore, the correct option is B) domain Archaea.
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Do you think that the flying fish
is free from predators once
it has left the water?
Answers
Answer: No
Explanation: because there are still air predators ( birds ) which could catch the fish when it is in the air.
How to do we convert 29paise to decimal plss give step by step explanation
Answers
To convert 29 paise to decimal, divide the value by 100. This conversion allows for easier representation and comparison of monetary values.
Paise is a subunit of the Indian rupee, where 100 paise is equal to 1 rupee. To convert paise to decimal, we need to divide the value by 100.
Take the value of 29 paise.
Divide the value by 100 to convert it to decimal.
29 paise ÷ 100 = 0.29
So, 29 paise is equal to 0.29 in decimal notation. When converting paise to decimal, we divide by 100 because there are 100 paise in 1 rupee. This conversion allows for easier representation and comparison of monetary values.
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Gene on a chromosome lies close to another gene controlling a different trait. This indicates that jeans are blank the first gene contributes to the expression of the second gene. This indicates blank
Answers
Answer: genes are linked
Explanation: Gene on a chromosome lies close to another gene controlling a different trait. This indicates that genes are linked, meaning they are physically close to each other on the same chromosome. The proximity of these genes suggests that they are more likely to be inherited together as a unit, rather than independently assorting during the process of genetic recombination.
A frog that is dominant for its light green color mates with a brown frog and produces one small brown frog. How is this possible if the green color is dominate?
Answers
Answer:
The dominant (light green) parent was heterozygote for the trait
Explanation:
According to Gregor Mendel in his law of dominance, an allele is said to be DOMINANT if it masks the phenotypic expression of another allele in a gene. The allele being masked is called RECESSIVE allele. In this case of a frog whose allele for light green color is dominant over the allele for brown color, the light green color allele (G) is dominant while the brown color allele (g) is recessive.
However, in a cross between that have light green frog and a brown frog, a small brown frog is produced. This is possible despite the green color being dominant because the genotype of the light green dominant parent is HETEROZYGOUS i.e. it contains both light green (dominant) allele and brown (recessive) allele.
Hence, when a gamete with recessive allele (g) is produced by the heterozygous light green frog (Gg), it mates with a recessive allele from the brown frog (gg) to produce a brown offspring (gg).
Which sentence from "Putting the Brakes on Driverless cars" BEST support the inference that driverless cars could give rise to new safely issues that are potentially worse than current safety issues?
A: "It seems that people have a genuine dependence on technology in everyday life."
B: "Designers claims that they will eliminate the need for human drivers and prevent traffic collisions."
C: "First, drivers will likely be less aware of their surroundings than if they had been driving all along."
D: "While great advancements do help society, the driverless car is not one that needs to be pursued."
Answers
B. Designers claims that they will eliminate the need for human drivers and prevent traffic collisions."
Our autonomous vehicles will be trained to steer clear of crashes, particularly with people. However, what if a woman with a stroller suddenly jumps out into the road and the automobile does not have time to stop? The auto industry is well aware of all these ethical concerns, which is why Daimler, the owner of Mercedes-Benz, is hosting the first-ever conference on "Autonomous Driving, Law, and Ethics" this fall and manufacturers are consulting philosophers and ethicists.
However, consensus thinking is not a skill that philosophers are recognized for, even if it will be necessary to address these problems at a corporate level.
Nobody is naive enough to think that law-abiding autonomous cars, with all of its cameras, sensors, radars, and faster response times than a human, won't cause accidents—90% of which are now caused by driver mistake.
On rare occasions, they will crash, possibly killing someone. Several of the ones undergoing testing in the US have already been in accidents.
According to Ben Howarth, policy advisor at the Association of British Insurers, "there are significant practical and legal difficulties that need to be addressed, notably around who would ultimately be responsible for an autonomous car.
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Explain the effect carbon has on climate
Answers
I need a cytoskeleton pick up line!
Answers
Answer:
Call me a cytoskeleton because I'll provide you with all the support you need and cause some movement inside you
Explanation:
it’s not mine so I can’t take credit but I hope this works and is what you are looking for.
Which of the followinis a measurment of the size of a sphere
A Angle
B Tilt
D Degree
C circumference
Answers
Answer:
the volume of a sphere in terms of diameter (d) is, V = (πd3)/6.
Your friend believes Tom Cruise is an authority (or trustworthy source) on the topic of psychiatric medication. Evaluate the reliability and credibility of using Tom Cruise as a source.
Answers
Answer:
Tom Cruise is not a trustworthy source because he is an actor, and is not a trained professional who is properly educated about psychiatric medication.
Explanation:
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What caused abrasion?
Answers
There is 2 abrasion so I put both
Answer: An abrasion is a type of open wound that's caused by the skin rubbing against a rough surface . It may be called a scrape or a graze. When an abrasion is caused by the skin sliding across hard ground, it may be called road rash.
Answer: Abrasion can happened when the wearing away of rock by sand. Abrasion can also refer to rocks that rub against other rocks.
Answer:
an abrasion is causes by skin contact with a rough or sharp surface. when forceful contact is made (with surfaces like concrete or gravel), the skin tears away.
Explantion:
Ex. When you fall on the ground outside on the asphalt or rocks, you can sometimes "scrape" your knee. this is called abrasion.
according to the avma, which method is acceptable, when used by itself, for euthanasia of rabbits?
Answers
According to the avma, the acceptable method, when used alone, for the euthanasia of rabbits are barbiturates and barbituric acid derivatives.
What is the method of euthanasia in rabbits?Recommended methods of euthanizing rabbits depend on the facilities and conditions in which the animals are housed and maintained. in a controlled as a biomedical research facility where researchers have access to restraint devices and controlled drugs, intravenous injection of barbiturates is generally used.
With this information, we can conclude that according to the avma, the acceptable method, when used alone, for the euthanasia of rabbits are barbiturates and barbituric acid derivatives.
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Quick! 40 Points!
Which of the following best describes what happens after a lysosome is made in the rough endoplasmic reticulum of a plant cell?
It becomes embedded in the cell membrane and allows ions to enter the cell.
It is sent to the Golgi apparatus for further processing.
It enters the chloroplast and absorbs light during photosynthesis.
It begins releasing enzymes to break down large molecules.
Answers
Explanation: The enzymes that the lysosome emits to digest waste in the cell are made in the Golgi apparatus.
Answer:
B is correct
Explanation:
I just took the test :)
What is the significance of the sequence (order) of the Nitrogen Bases in DNA?
Answers
I need help ASAP please
Use the diagram to answer the following questions.
A
B
S
C
G
S
TA
P
S
S
G
P
S
C
The sides of the helix labeled as A are made of
groups.
Answers
Answer:
Explanation:
Im super confused?
Can you explain more?
Which molecule will have a trigonal
planar geometry?
CO2
NHA
SO3
Answers
Answer:
your answer is NHA
Explanation:
I looked it up by asking what the three answers was and it gave me the question .
(b) Identify an independent variable for the experiments with data shown in Figures 1 and 2. Justify the use of
14C-labelled glucose in the experiment with data shown in Figure 3. Based on Figure 3, describe the difference in
Krebs cycle enzyme activity between control mouse cells and mouse cells overexpressing the FXN gene. Based
on the data in Figure 3, calculate how many times more CO₂ is produced on average in the cells overexpressing
FXN as compared with control cells.
Answers
The details of the experiment with regard to dependent and independent variables are given below.
What is an independent variable?Note that the intendent variable for the experiment is the concentration of the compound being tested.
14C- labelled glucose was used in the experiment because it allows for tracking the fate fo the glucose molucules in the cells.
Figure 3 shows that the mouse cells overexpressing the FXN Gene have a higher Krebs cycle enzyme activity in relation to the control cells.
thus, based no the data, the cells over expressing FXN produce on average, 2.5 times more Co2 than the controll cells.
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Full Question:
See attached image.
Contrary to the structures of the hindbrain and the midbrain, most structures of the forebrain are?
Answers
Contrary to the structures of the hindbrain and the midbrain, most of the structures of the forebrain are duplicated in both brain hemispheres (i.e., the right brain hemisphere and left brain hemisphere).
What are the right brain hemisphere and left brain hemisphere?The right brain hemisphere and left brain hemisphere are two structures that divide the cerebrum (i.e., the brain) into two major parts, which control the sensory and motor functions of the individual.
The right brain hemisphere controls functions of the left part of the human body, while the left brain hemisphere controls functions of the right part of the human body.
In conclusion, contrary to the structures of the hindbrain and the midbrain, most of the structures of the forebrain are duplicated in both brain hemispheres (i.e., the right brain hemisphere and left brain hemisphere).
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