How does the DNA of the 2 sister chromatids of chromosomes compare?

Answers

Answer 1

The genetic sequences of sister chromatids are identical. Sister chromatids occur only after the S (synthesis) phase, when the DNA is replicated in preparation for mitosis or meiosis.

A sister chromatid is a pair of identical copies (chromatids) generated by chromosomal DNA replication, with both copies connected together by a shared centromere.

To put it another way, a sister chromatid is 'one-half' of a duplicated chromosome. A dyad is a pair of sister chromatids.

Because both sisters are the result of semi-conservative DNA replication and so have the same DNA sequence, suitable criteria to identify sister chromatids are not clear.

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Related Questions

Someone please help i’ll give brainliest.

Answers

They provide energy

Explanation:

Yeah they provide energy to the cell

how does energy cause global warming

Answers

Answer:

Global warming is caused primarily from putting too much carbon into the atmosphere when coal gas and oil are burned to generate electricity or to run our cars. These gases spread around the planet very fast, keeping the solar heat that would otherwise be radiated out into space!

Hope this helped

Global warming is an aspect of climate change, referring to the long-term rise of the planet's temperatures. It is caused by increased concentrations of greenhouse gases in the atmosphere, mainly from human activities such as burning fossil fuels, deforestation and farming.

The environmental problems directly related to energy production and consumption include air pollution, climate change, water pollution, thermal pollution, and solid waste disposal. ... The emission of air pollutants from fossil fuel combustion is the major cause of urban air pollution

The Top 8 Causes of Global Warming

- Power Plants. Forty percent of U.S. carbon dioxide emissions stem from electricity production. ...

- Transportation. EPA reports state that thirty-three percent of U.S. emissions come from the transportation of people and goods.

- Farming. ...

-Deforestation. ...

- Fertilizers. ...

- Oil Drilling. ...

- Natural Gas Drilling. ...

- Permafrost.

Hope this helps :)

Have s great day!

Tertiary consumers are always the final step in a food chain.
TRUE
FALSE

Answers

Answer:

flase

Explanation:

Answer:

False

Explanation:

The final step in a food chain are decomposers.

Describe the relationship between density and temperature

Answers

Answer:Density is directly proportional to pressure and indirectly proportional to temperature. As pressure increases, with temperature constant, density increases. Conversely when temperature increases, with pressure constant, density decreases.

Explanation:  :  )

A fixed pulley is classified as a simple machine because it changes which of the following aspects of the input force
1. ratio
2.direction
3.efficiency
4.magnitude

Answers

Answer:

3

Explanation:

3 efficiency there u go

why are plate movements of convection important in earth science

Answers

Yea I don’t know im sorry

Someone please help me !!

Answers

Answer:

A

Explanation:

The most common index
fossils are shells of invertebrates.
Give two reasons why this is so.

Answers

Answer:

the most common index fossils are shells of invertebrates. give two reasons why this is so. Fusulinids make good index fossils. they are very abundant in marine sediment, widely distributed, and existed during a specific period in time.

Explanation:

learned in science class

Answer:

Fusulinids make good index fossils. They are very abundant in marine sediment,widely distributed and existed during a specific period in time.

You are studying a biochemical pathway in the mold Neurospora where enzyme 1 converts the initial substrate into intermediate substrate A; enzyme 2 converts intermediate substrate A into intermediate substrate B; enzyme 3 converts intermediate substrate B into intermediate substrate C; and enzyme 4 converts intermediate substrate C into the end product, an amino acid that is essential for growth. You isolate a mutant that is unable to grow on minimal media. Which data would provide the strongest support for the hypothesis that this mutation occurred in the gene that codes for enzyme 2

Answers

Complete question:

You are studying a biochemical pathway in the mold Neurospora where enzyme 1 converts the initial substrate into intermediate substrate A; enzyme 2 converts intermediate substrate A into intermediate substrate B; enzyme 3 converts intermediate substrate B into intermediate substrate C; and enzyme 4 converts intermediate substrate C into the end product, an amino acid that is essential for growth. You isolate a mutant that is unable to grow on minimal media. Which data would provide the strongest support for the hypothesis that this mutation occurred in the gene that codes for enzyme 2?

a. The mold can grow on rich medium plus intermediate substrate C, but not on rich medium plus intermediate substrate B.

b. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus the initial substrate.

c. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus intermediate substrate A.

d. The mold can grow on rich medium plus intermediate substrate D, but not on rich medium plus intermediate substrate C.

e. The mold can grow on minimal medium plus intermediate substrate A, but not on minimal medium plus intermediate substrate C.

Answer:

c. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus intermediate substrate A.

Explanation:

Let us first diagram the pathway for a better understanding.

The normal organism produces four enzymes that convert substrates in the medium that allow it to survive, grow, and reproduce.  

initial substrate ------------> A ----------------> B ----------------> C ----------------> AA

                           Enzyme 1       Enzyme 2        Enzyme 3         Enzyme 4

Any mutation on the Neurospora´s enzymes will not let the organism grow on the minimal medium because it will not be able to convert the minimal substrate into the following one, because the mutated enzyme will not accomplish its original function.

So if the mutation occurs in enzyme 1, the organism will not be able to convert the initial substrate into intermediate substrate A. And the rest of the reaction will not be possible either because of the lack of substance A.

initial substrate -----X----> A -------X-----> B ------X--------> C ------X-------> AA

          mutated Enzyme 1      Enzyme 2       Enzyme 3        Enzyme 4

If the mutation occurs in enzyme 2, the organism will not be able to convert the intermediate substrate A into intermediate substrate B. And the rest of the reaction will not be possible either because of the lack of substance B.

initial substrate ------------> A -------X--------> B -------X------> C --------X-----> AA

                           Enzyme 1   mutated Enz. 2     Enzyme 3         Enzyme 4

If the mutation occurs in enzyme 3, the organism will not be able to convert the intermediate substrate B into intermediate substrate C. And the last reaction will not be possible either because of the lack of substance C.

initial substrate ------------> A ----------------> B -------X--------> C -------X------> AA

                           Enzyme 1       Enzyme 2     mutated Enz. 3     Enzyme 4

And if the mutation occurs in enzyme 4, the organism will not be able to convert the intermediate substrate C into the essential amino acid.

initial substrate ------------> A ----------------> B ----------------> C -------X-------> AA

                           Enzyme 1       Enzyme 2        Enzyme 3      Mutated Enz. 4

But, if we artificially add to the medium the substrate that should be produced by the original enzyme (and that is not converted because of the mutation), then the organism will grow and survive because the other enzymes will be able to produce the essential amino acid.

So, if enzyme 2 is the only enzyme mutated, the organism will not be able to live in a medium with substrate A because the mutated enzyme will not convert the substrate A into B. There will not be B substrate in the medium, and the other enzymes will not produce the essential amino acid. So if the mutation occurs in enzyme 2, substrate A is useless to the organism because it will not survive.

But if we add the intermediate substrate B to the medium, the organism will survive. In a medium with substrate B, all the other reactions will be possible, and the organism will get the essential amino acid. The artificial addition of B substrate will replace the function of the original enzyme 2 -which is the one that converts A into B-.

As you move away from the equator...
A
the amount of blodiversity Increases because the average temperature increases.
B
the amount of blodiversity Increases because the amount of precipitation Increase
C
the amount of blodiversity decreason because the average temperature decreases.
D
the amount of blodiversity decreason because the amount of sunlight Increases.

Answers

Answer:

C

Explanation:

PLEASE ITS ALREADY LATE PLEASE HELPPPP
Given these origins of the word transcription trans + script, why do you think scientists named the
process that way?

Answers

to scripe is to rewrite trans is to make . simply means there is a message written for the formation of something (the protein) that message is written or performed based on previous information

Clams that are native to China are living in the San Francisco bay. How can these clams damage the bay ecosystem?​

Answers

Answer:

Marine Invasive Species are animals or algae that have been translocated from their native region to California marine and estuarine waters. Invasive species are also called introduced, exotic, alien, nonindigenous or non-native.The introduction of NIS can cause harm to the ecosystem by displacing native species, becoming a human health dangerby introducing new diseases, or cause economic havoc on commercial, agricultural, or recreational activities by clogging waterways, and impacting navigation and recreation.

A prime example of the harm an invasive species can cause is Caulerpa taxifolia, also known as Killer Algae, a strain of green seaweed believed to be released from an aquarium directly into a water body or through a storm drain. The Killer Algae forms a dense carpet on any surface including rock, sand, and mud displacing native plants and animals, disrupts the natural food chain, and seriously impacting recreational and commercial fisheries.

Although Caulerpa was successfully eradicated from California marine waters, few eradications have been attempted due to perceived challenges and high cost (over $7M was expended in the case of Caulerpa).

Number of Invasive Species Statewide

The map below shows that all major harbor areas and Bays in California have received significant NIS introductions. San Francisco Bay has the highest number of non-native species, followed by the Ports of Los Angeles/Long Beach. San Francisco Bay is a hotspot for invasions because it has high recreational boating and commercial shipping traffic, a history of oyster culture, and is adjacent to a highly urbanized area. Our research found that San Francisco Bay is a hub for the spread of NIS to the rest of the West Coast.

Explanation:

What is magma made of???

Answers

Answer:

Water vapor, Carbon dioxide, and sulfur

Explanation:

Hope that helps

Answer:

Magma made of Water vapor, carbon dioxide, and sulfur.

Explanation:

Like solid rock, Magma is a mixture of minerals. The high temperatures and pressure under Earth's crust keep magma in its fluid state.

A quote often attributed to Mark Twain states, "What gets us into trouble is not what we don't know. It's what we know for sure that just ain't so." How does this relate to Pangaea and the Theory of Plate Tectonics? Ted talk

Answers

Answer:

Land masses moves as the movements of the tectonic plates causes the movement of the huge land masses like the Pangaea.

Explanation:

Mark Twain was a great American writer and lecturer. He is also known greatest humorist that the United States of America has ever produced.

By the statement of Mark Twain, it relates to the idea of the Pangaea and the theory of the tectonic plates. The very idea that the early continents were fitted together was being rejected by many for a long time as it was unbelievable for many that the huge land masses can move. But this turned out to be true later on.

i need help with #3 bad please i’ll give u a brainliest if u give me the correct answer i promise

Answers

Answer:

Its A

Explanation:

If you look closeley at the modle you can start to notice a pattern. Therefore a repeating structure. And they arent moving freely since they are combined into a compound to create NaCi.

Which of the following bacteria are responsible for causing the greatest number of foodborne illnesses?

A)Salmonella
B)Campylobacter
C)E. Coli
D)Listeriosis

Answers

Answer:

A. Salmonella

B. Campylobacter

Answer:

Salmonella, Campylobacter, and Toxoplasma caused the greatest number of foodborne illnesses.

-TheUnknownScientist

because light can travel through space, it cannot be a ____ wave


PLEASE ANSWER !!

Answers

Answer:

Sound

Explanation:

Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that they cannot travel through empty space, where there are no atoms or molecules to vibrate.

Answer:

Matter Wave

Explanation:

When light shines in an object,it is reflected absorbed or transmitted through the object depending on the objects material and the frequency (color) of the light... However, because light can travel through space it cannot be a matter Wave, like sound or water waves

Determine if the following statement is true or false, and why. “Everyone who
carries a faulty allele develops a disease."
A. False, it should read, "No one who carries a faulty allele develops a disease."
B. False, it should read, "Some people who carry a faulty allele develop a disease, some
are carriers."
C. True
D. False, it should read, "No one who carries a faulty allele becomes a carrier."

Answers

B.False. it should read, “Some people who carry a faulty allele develop a disease, some are carriers “

The statement "Everyone who carries a faulty allele develops a disease" is absolutely false. This is because some people who carry a faulty allele develop a disease, some are carriers. Thus, the correct option is B.

What is an Allele?

An allele may be defined as one or two or more alternative forms of a gene. An individual always inherits two alleles, one from each parent that shows characteristic traits for any given genomic location where such variation exists.

If the two alleles are the same, the individual is homozygous for that allele. While, if the two alleles are non-identical, the individual is heterozygous for that allele.

It is not possible that everyone who carries a faulty allele develops a disease because it depends on the expression of the disease, whether it is dominant or recessive, sexual or autosomal, etc.

Depending on the same principle, some are affected by the disease when both alleles have the same traits while some are carriers.

Therefore, the correct option for this question is B.

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Tina is studying chipmunks in a field of 900 square meters. In 2020, she counts 194 chipmunks. In 2021, she counts 231 chipmunks. What is the population density of chipmunks in 2021?

Answers

Answer:the population density of chipmunks in 2021=256,666.667 per square kilometres

Explanation:

Population density is defined as the number of population per unit area of land

which can be expressed as

Population density =number of population/ land area

Since  land area is usually given in square kilometres or square miles  we convert 900 square meters to square kilometres

1 square kilometres =1000000 square meters

900 square meters=900/1000000=0.0009 square kilometres

Therefore, the population density of chipmunks in 2021= 231/0.0009 square kilometres =256,666.667 per square kilometres

please help

9. why Energy released by aerobic and anaerobic respiration in animal are not same.​

Answers

Answer: Anaerobic respiration produces a relatively lesser amount of energy as compared to aerobic respiration, as glucose is not completely broken down in the absence of oxygen. In animal cells anaerobic respiration often occurs during exercise. The glucose does not get fully broken down in this process, so it does not release its full potential energy. Instead of carbon dioxide and water it breaks down to form lactic acid and a small amount of energy.

Explanation:

pls help i am failing

Answers

methionine

lysine

phenylalanine

leucine

alanine

glycine

Why is it important for soil to contain nitrogen, phosphorus, magnesium, and potassium??

Answers

Answer:

Soil is one of the main sources of nutrients needed by plants in order for them to grow. Nitrogen is used by plants for lots of leaf growth and good green color. Phosphorous is used by plants to help form new roots, make seeds, fruit and flowers. Potassium helps plants make strong stems and keep growing fast. It's also used to help fight disease. Magnesium is the central core of the chlorophyll molecule in plant tissue.

Explanation:

Hope this helped a little bit.

Answer:

Explanation:

1.Without enough nitrogen  in the soil the plant cannot grow taller, or produce enough food.

2.phosphorus results in higher grain production, improved crop quality, greater stalk strength, increased root growth, and earlier crop maturity. That is important because crops take up phosphorus only from the soil solution.

3.The role of Magnesium in the soil is the central core of the chlorophyll molecule in plant tissue. Thus, if Mg is deficient, the shortage of chlorophyll results in poor and stunted plant growth. Magnesium also helps to activate specific enzyme systems.

4. Potassium is a critical nutrient that plants absorb from the soil, and from fertilizer. It increases disease resistance, helps stalks to grow upright and sturdy, improves drought tolerance and helps plants get through the winter. Potassium triggers activation of enzymes and is essential for production of  (ATP).Both uptake of water through plant roots and its loss through the stomata are affected by potassium.

Hope this helped!!!

A moss begins to grow on a rock in an area that was previously uninhabited by life. This is an example of a __________ Choices: A. Pioneer species B. Climax community C. Disturbance D. Secondary succession ANSWER QUICK!!!

Answers

Answer:

The moss would be a pioneer species.

Explanation:

The chart below shows the average surface temperature or temperature range for each of the eight planets.

Planet Temperature
Mercury 100–700 K
Venus 735 K
Earth 287 K
Mars 227 K
Jupiter 112–165 K
Saturn 84–134 K
Uranus 53–76 K
Neptune 55–72 K
What conclusion can be drawn from this information?

Answers

Answer:

the temperature of planets closes to the sun is hotter than planets far away


During normal cell division, a parent cell having four chromosomes in G1 will produce two daughter cells, each containing ______.

Answers

When a parent cell splits into two daughter cells, it is mitotic cell division (Mitosis). So if the parent has four chromosomes and the daughter cells are identical, they will also each have four chromosomes. For example, we humans have 46 chromosomes, 26 of them from the mom and the dad.

What are sediments?
A Small sections of tectonic plates
B Small pieces of rock or soil material
C The new minerals created after chemical weathering
D The new land created by deposition​

Answers

Answer:

B

Explanation:

They come from other Rocks or living things such as bones,leaves,stems, etc.

Approximately 20% of the world’s adult population are able to digest milk sugar (lactose).They are “lactose tolerant.” This trait is known to be controlled by a single dominant gene. Therefore, we would expect that

no lactose tolerant individuals have two biological parents that are lactose INtolerant.

all lactose tolerant individuals to be heterozygous for the gene.

60% of lactose INtolerant individuals would be heterozygous.

all children of lactose tolerant parents will also be lactose tolerant.

Answers

Answer:

No lactose individuals have two biological parents that are lactose intolerant

Explanation:

In this case lactose intolerance would be coded for a recessive gene (r). if both parents are lactose intolerant the would both be the genotype (rr) . For individual to be lactose intolerant atleast one parent most be lactose tolerant posesing the dominant (R) gene. Which both parents in this example lack.

EMERGENCY!!!! which process is transcription and which one is translation????!!!!!!!!!!!
PLEASE HELP!!!!!!!!

Answers

Answer:

a is transcription and b is tranlation

Explanation:

PLEASE HELP ASFFF

What were the results of the experiment and how did the results prove the semiconservative model of DNA replication? Explain.

Answers

Answer:

it can be shows in DNA Test

Why is it important for an organ system to interact with other organ systems?

Answers

Answer:

Just as the organs in an organ system work together to accomplish their task, so the different organ systems also cooperate to keep the body running. For example, the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce.

Explanation:

Other Questions
Frank's daughter jenna is sick. They visit the hospital and the doctor says that if jenna does not get a certain medicine, she will probably die. Unfortunately, frank cannot afford the medicine. He notices recent improvements to the hospital and suspects it must be making a lot of money by raising the prices of medicines. On his way out, frank notices an open drawer stuffed with vials full of the medicine jenna needs. He does not see anyone around and knows he could take some of the medicine without anyone noticing. What would a kantian deontologist say that frank should do?. whcich is most closely with penitentiary What space and color techniques are used in this painting that make it surreal? (3 points)A. Abstraction of movement and colorB. Abstraction of scale and color C. Perspective and ContrastD. Perspective and Value When can the buyer reject the goods delivered? Father spends 3_4parts of his monthly income on food and parts 1_8your education. On which heading does he spend more money? Can super PACs donate to candidates? What is the value of x and y? Show all work. Write 2 paragraphs about Nhamo from the setting sun and the rolling world 1) Insert the missing code in the following code fragment. 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Bacterial cells may be phagocytized and processed for presentation by ______is the fundamental mechanism that generates technological progress in "Schumpeter's Endogenous" growth model is taken from marx's circuit of capital. After applying the primer during a sculptured nail service: What does it mean when you say that scrum separates the what from the how? Provided below is the IR and 'H NMR for a compound having the molecular formula of C,H,O, Using this information, determine the degrees of unsaturation for this structure and solve and draw the structure responsible for these spectral data. To validate your answer, you need to assign the type of bond (ie, stretch) responsible for each peak highlighted by a box in the IR. You must also assign each 'H NMR peak (a)-(e) to the correct set of protons in your proposed structure. The integration for each peak has been provided for you. You must label the multiplicity observed for each peak. Is your structure consistent with all of this data? If not, chances are you do not have the correct structure, or the peaks have been assigned incorrectly. In your peer review, offer feedback concerning the accuracy of the submitted structures and spectral assignments. If you believe the answers are incorrect, then you need to provided explanation. In the end, you should all be getting the same correct structure. Please draw the final structure in the box provided underneath the NMR. TH NMR - for clarity, expansions have been provided for peaks that are not a singlets. Proposed Structure: Remember to assign it to the NMR per instructions. IR FREQUENCY TABLE (in wavenumber) Frequency Range (om ) Intensity Group A. Alky! C-H (stretching) Isopropy. -CH(CH), tert-Butyl, -C(CH) ( -5) and 2853-2002 1380-1385 1365-1370 1385-1395 - 1366 (m) and B. Alkenyl C-H(stretching) C- (stretching) R-CH-CH, m) (v) 3010-3095 1620-1600 085-1000 905-920 80-900 (6) (out of plane >C-H bondinga) and BCHCH cafe Esses se s8 s (8) 675-730 960-975 (6) (s) -3300 2100-2260 (8) () cle-RCH-CHR trans-RCH-CHR C. Alkyny! C H (stretching) C-C (stretching) D. Aromatic Ar-H(stretching) Aromatic substitution type (C-Hout-of-plane bendings) Monosubstituted o-Disubstituted m-Disubstituted -3030 and (very s) (very s) (s) 690-710 730-770 735-770 680-725 750-810 800-860 and (very s) (very s) 3590-3650 3200-3550 2500-3000 (sharp ) (broad, s) (broad, p-Disubstituted E. Alcohol, Phenols, and Carboxylic Acids O H (stretching) Alcohols, phenols (dilute solutions) Alcohols, phenols (hydrogen bonded) Carboxylic acids (hydrogen bonded) F. Aldehydes, Ketones, Esters, and Carboxylic Acids C-O (stretching) Aldehydes Ketones Esters Carboxylic acids Amides G. Amines N- H H. Nitriles CON 1630-1780 1690-1740 1680-1750 1735-1750 1710-1780 1630-1690 (s) (s) (s) (s) (s) (5) 3300-3500 (m) 2220-2260 (m) weak edium w - variatie p rowity Abbreviations strong m NMR CHEMICAL SHIFT TABLE (in ppm) CHARACTERISTIC PROTON CHEMICAL SHIFTS Type of Preton Structure Chemical Shin, ppm Cycopropane CHE Primary R-CH Secondary R-CH: Tertiary R; C-11 Vinylic C=C-H Acetylanic triple bond.CC-H Aromate Ar-H Benzyle Arc- Allylic CHCCH Fluorides H-C-F Chlorides H-C-a Bromides H-C-Br Iodides H-C- Alcohol H-C-OH Ethors H-C-OR 33-4 Esters RCOO-C- 3.7-4.1 Esters H-C-COOR 2-22 Acids H-C-COOH 2-26 Carbonyl Compounds H-C-C-0 2-27 Aldehydie R-CH-)C=0 9-10 Hydroxylic R-C-OH 1-55 Phenolie Ar-OH 4-12 Enolic C-C-OH 15-17 Carboxylic ROOOH 10.5-12 Amino RNH, 1-5 An investor deposited some money at 1.7% annual interest, and two equal but larger amounts at 2.3% and 2.4%. Thetotal amount invested was $25,000, and the total annual interest earned was $568. How much was invested at eachrate?At the rate 1.7%, $ was invested.