Một đoạn phân tử DNA có 2200 nucleotide. Hãy cho biết đoạn DNA này dài bao nhiêu Å ? Biết một chu kì xoắn có 10 cặp nucleotide (nu), dài 34 Å.

Answers

Answer 1

Answer:

10 cm Tôi hy vọng điều này có thể giúp bạn


Related Questions

Acidic rainwater dissolving rock is an example of
A. oxidation
Bicarbonation
C.hydrolysis
D. salt wedging

Answers

Explanation:

oxidation bicarbonation

From the types of light that reach Earth's surface, which do you think could be causing skin cancer?
Explain your reasoning.

Answers

UV light caused cancer because it damages the DNA in our cells. Changing the characteristic of a cell can cause cancer

The type of light that could cause skin cancer is the ultraviolet (UV) light rays. The following reasons are further explained why they harm the skin.

What is ultraviolet (UV) light?

The ultraviolet light is a type of electromagnetic radiation that possess a shorter wavelength than the visible light.

The solar radiation from the sun that reaches the earth planet is made up of the following:

visible light,

Infrared rays and

ultraviolet light rays.

The ultraviolet light is harmful to the skin when exposed to it for a long time. This can damage the DNA of the skin cells which can lead to abnormal proliferation or uncontrolled growing of the cells which eventually causes cancer.

Therefore, the type of light that could cause skin cancer is the ultraviolet (UV) light rays.

Learn more about cancer here:

https://brainly.com/question/11710623

100 POINTS & BRAINLIEST!!

Answers

It has alot of Biodeversity!
There is a shipwreck.
Time.
The Biodeversity keeps this micro habitat stable and provides room for different species to come in.
The shipwreck is a man made artifact that provides alot of shelter for all types of wildlife in this small habitat
Over time this was developed not just in days!
Hope this helps!

Answer:

Biodiversity

Explanation:

The correlation between surroundings and the animals or creatures living inside an ecosystem anywhere is called biodiversityThe ship is working as a shelter for fishes.So they have started living inside and also reproducing themselves.It also shows that for food they have to come outside which is not present inwards

Use each vocabulary term in a sentence.
13. controlled study
14. environmental ethics

Answers

Answer:

Controlled study:

We conducted a controlled study on the two plants.

Environmental ethics:

The man over there is all business he talks of social and environmental ethics.

Explanation:

Hope this helps :}

Pls make brainliest :P

And have an amazing day <3

a muscle fiber is what level of organization in the body?

Answers

A muscle fiber is a CELLULAR level of organization in the body. A muscle fiber is a single muscle cell.

A muscle fiber consists of myofibrils, which are in turn composed of a series of sarcomeres linked in linear order.

The sarcomere represents the functional unit of muscle fiber cells.

Each bundle of muscle fibers is known as fasciculus.

Learn more in:

https://brainly.com/question/19091001?referrer=searchResults

How is coal and petroleum formed

Answers

Answer:

Coal and petroleum are formed as a result of degradation of ancient plant life which lived millions of years ago. These dead plant matter started to pile up, eventually forming a substance called peat. Over time, heat and pressure from geological processes transformed these materials into coal.

Explanation:

MARK ME AS A BRAINLIST PLZ

DONT POST LINKS
After the amino acid chain leaves the ribosome, which organelle then folds, modifies, and transports the protein?
O Lysosome
O Cytoplasm
O Endoplasmic Reticulum
O Ribosome

Answers

Answer:

The endoplasmic reticulum

Explanation:

It is not the lysosome because their processes are degrading and recycling cellular waste, and involved in energy metabolism

It is not the cytoplasm because the cytoplasm doesn't do anything itself, it just provides an environment for the rest of the organelles to do their job

It is not the ribosome because the amino acid chain left the ribosome in the question

For secretory, plasma membrane, and organelle proteins, the endoplasmic reticulum (ER) is a significant protein folding compartment. Thus, option C is correct.

What is the role of Endoplasmic Reticulum in folding?

A polypeptide chain cannot acquire its right structure and function without protein folding.

Chaperones are HSP that aid in protein folding. Chaperonins are multimeric complexes that fold proteins by forming hollow structures.

Numerous general activities of the endoplasmic reticulum include transporting produced proteins in vesicles to the Golgi apparatus and folding protein molecules into sacs termed cisternae.

Therefore, Endoplasmic Reticulum folds, modifies, and transports the protein.

Learn more about endoplasmic reticulum here:

https://brainly.com/question/20849178

#SPJ2

a typical human chromosome contains about how many nucleotides in its dna?

Answers

Answer:

50 million nucleotide pairs

The typical human chromosome contains 50 million nucleotide pairs

in its DNA.

What is DNA?

Deoxyribonucleic acid (DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid (RNA) are nucleic acids. Alongside proteins, lipids and complex carbohydrates (polysaccharides), nucleic acids are one of the four major types of macro molecules that are essential for all known forms of life.

Hence, The typical human chromosome contains 50 million nucleotide pairs.

in its DNA.

Learn more about Functions of DNA refer to:

https://brainly.com/question/1882724

#SPJ2

hybrid zones provide an opportunity to investigate _____.

Answers

Answer:

Hybrid zones are geographical areas where two interbreeding groups of genetically unique organisms meet. Hybrid zones provide an opportunity to investigate Reproductive isolation and Speciation.

Explanation:

which statement correctly describes macromolecules?
A nitrogen is essential for Carbohydrate formation
B lipids or water loving molecules critical for cell functions
C most macromolecules contain carbon, hydrogen, and oxygen
D repeating units, called amino acids, contain phosphorous and are used to build nucleic acids

Answers

Answer:

I would go with C.

Explanation:

Macromolecules contain carbon, hydrogen, and oxygen. option A correctly describes the macromolecules.

Macromolecules:

Macromolecules are two or more atoms connected by chemical bonds.  Macromolecules contain carbon, hydrogen, and oxygen.

Carbon, hydrogen, and oxygen are essential for carbohydrate formation. Lipids are water-insoluble that are critical for cell functions. Nitrogen is used to build nucleic acids.

Carbon, hydrogen, and oxygen are 96 percent in nature. Calcium, phosphorus, and potassium are major elements. Boron, iodine, and silicon are 0.5 % in nature. Carbohydrates represent group of substance which include starch, sugars and cellulose.

Therefore, Macromolecules contain carbon, hydrogen, and oxygen. option A correctly describes the macromolecules.

To learn more about macromolecules, refer to the link:

https://brainly.com/question/13277913

#SPJ2

How would life on Earth be affected if water was less dense than ice?

Answers

Answer:

freeze and sink over and over until the entire lake was frozen.

Explanation:

This would eliminate many aquatic organisms and produce a system with far fewer life forms in lakes which freeze periodically.

Which of the following steps is required before biological processes can break down organic material in wastewater?

Aeration basins
Primary clarifiers
Filtration
Disinfection

Answers

The following steps required before biological processes can break down organic material in wastewater is Aeration basins and Primary clarifiers.

Water treatment refers to any technique that enhances the quality of water in order to make it suitable for usage by humans in homes and offices.

There are certain processes involved in the treatment of water. These includes:

screening and pumpinggrit removalprimary clarifiersaerationsecondary clarifiersFiltrationDisinfectionoxygen uptake

In the screening and pumping process, materials and objects are removed from the entering wastewater using screening machinery. The extracted material is cleaned, crushed, and disposed of in a landfill.

In the grit removal, fine particle materials are eliminated from the wastewater.

Enormous circular tanks are known as clarifiers that receive the materials. Settled material acknowledge as primary sludge, is pushed to the tank's bottom, while the wastewater leaves from the top.

At the aeration stage, the wastewater receives the majority of its treatment. Pollutants are absorbed by microorganisms and turned into cell tissue, H2O, and nitrogen through biological breakdown processes.

The water treatment process was ended with filtration and disinfection to enable the water to be free from bacteria.

Therefore, we can conclude that the steps required before biological processes can break down organic material in wastewater is Aeration basins and Primary clarifiers.

Learn more about biological processes here:

https://brainly.com/question/20220626?referrer=searchResults

the brain and spinal cord are components of the ______ nervous system, while the nerves and ganglia are components of the ______ nervous system.

Answers

The brain and spinal cord are part of the central nervous system, while the nerves and ganglia are part of the peripheral nervous system.

What is the nervous system?

The nervous system is a set of structures that has the function of :

Maintaining homeostasis inside the body.Regulating mental activity.Reacting to the environment.

What are the parts of this system?

This system is mainly divided in:

Central: This includes the brain and spinal cord; these organs are considered part of the central system because they are located in the center of the body and they receive information from all the nervous structures in the body.Peripheral: This includes structures such as nerves and ganglia. The peripheral system differs from the central system because these structures can be found in organs, limbs, among others or the "sides" of the body.

Learn more about nervous system in: https://brainly.com/question/13487019

Why does the rate of somatic cell division differ?

Answers

Answer:

The cells divide in order to replace the old and damaged cells, and so that the body of the living being can grow

Explanation:

Answer:

The skin cells prevent germs from coming in our bodies. Skin cells are very easily removed, so it needs to reproduce faster.  Every single person both young and old has new cells every second replacing the old and dead cells in your body.

explain : Changes in temperature and humidity: skin helps to regulate body temperature, control moisture loss and maintain the balance of fluids. Pressure, blows and abrasion: skin recognises pain and alerts us to danger. It acts as a barrier and shock absorber.

Which of the following is not a lipid?
Asteroid
B cholesterol
C
wax
D cellulose

Answers

Answer:

cellulose

Explanation:

lipids are fats oils or waxes. cellulose is a fiber

Answer:

cellulose    

Explanation:

Examples of lipids include fats, oils, waxes, certain vitamins (such as A, D, E and K), hormones and most of the cell membrane that is not made up of protein. Therefore waxes are not the answer.

Steroids are lipids because they are hydrophobic and insoluble in water, but they do not resemble lipids since they have a structure composed of four fused rings. Cholesterol is the most common steroid and is the precursor to vitamin D, testosterone, estrogen, progesterone, aldosterone, cortisol, and bile salts. Therefore steroid and cholesterol is not the answer.

Human activities have caused both acid rain and a global increase in temperature, or global warming. How are these two effects--acid rains and global warming--related to each other? A. Acid rain is a side effect of global warming at the local level B. Acid rain is a side effect of efforts to reduce global warming C. Both acid rain and global warming are caused by the burning of fossil fuels D. Both acid rain and global warming are caused by increased levels of carbon dioxide in the atmosphere

Answers

Answer:

c

Explanation:

“The movement of cytoplasm is due to the movement of chloroplasts in the living cells of onion plant”, “while the movement of chloroplasts is due to the movement of cytoplasm in the living cells of bean plants”

which statement is correct and which one is wrong

Answers

''The movement of chloroplasts is due to the movement of cytoplasm in the living cells of bean plants'' is the correct statement.

The above statement is correct because chloroplast is an organelle which moves in the cell through the medium known as cytoplasm. Cytoplasm is a thick fluid that fills every type of cell and organelles are floating as well as suspended in this fluid.  

All organelles such as the nucleus, endoplasmic reticulum, chloroplast and mitochondria etc are located in the cytoplasm. The portion of the cytoplasm except the organelles is called cytosol so we can conclude that chloroplast is an organelle which moves within the cell with the help of cytoplasm.

Learn more: https://brainly.com/question/25148289

The epidermis of the leaf surface has the stoma that can help carbon dioxide diffusive inside the leaf with how many percents?
(sorry, my english is bad)

Answers

Answer:

27. 3%

As most c2 are being made on the leafs

what physical feature of dna is affected by the pairing of purines with pyrimidines?

Answers

Answer:

Its width.

Explanation:

The size of pyrimidines and purine is different because each group has a different structure (1 or two rings). Therefore, the width of DNA is "constant".

If we would pair two pyrimidines or two purines, the width of DNA would be different in both cases.

Hope this will help :)

How to use bacteria as a treatment for sewage waste

Answers

Answer:

Aerobic bacteria can be used to use the available oxygen in the water to degrade the pollutants in the waste and convert it into energy it can use for its metabolic processes.

Which process causes river gravel to have
rounded edges?
A. abrasion
B. acid rain
C. ice wedging
D. oxidation

Answers

The answer is A. Abrasion!
I hope that helped :)

What bird species was most noticeably impacted by West Nile virus when the virus was first detected? Was this the only bird species affected by the virus?

Answers

Answer:

Mostly crows, robins, and jays were the first of a few bird species impacted by the West Nile Virus when it was detected.

No, there were over 300 species discovered to be affected by the virus, these were just the main ones to be impacted.

Which of the following best represents the goals of the 1963 March on Washington organizers?

A.) To tell Congress they are doing great.
B.) To unify Americans to gather in non-violent protest to bring about real, actionable change
C.) To get the president on their side
D.) To support separate education

Answers

Answer:

D.) To support separate education

Explanation:

Answer:

B

To unify Americans to gather in non-violent protest to bring about real, actionable change

Explanation:

Originally conceived as a mass demonstration to spotlight economic inequalities and press for a new federal jobs program and a higher minimum wage, the goals of the march expanded to include calls for congressional passage of the Civil Rights Act, full integration of public schools, and enactment of a bill prohibiting ...

(a) Identify the most likely mode of transport across the membrane for substance L. Explain how information provided helps determine the most likely mode of transport.

Answers

Active transport occurs against the electrochemical gradient. It needs energy to move molecules from the lower concentration side to the higher concentration side. The mode of transport is active transport.

-------------------------------------------------

There are three main different types of transport across the membrane

Simple diffusionDoes not need energy to occurFacilitated transportDoes not need energy to occurActive transportNeeds energy to occur

Active transport is the transport of molecules that move against the electrochemical gradient, so it does need energy to happen.

Molecules move from the lower concentration side to the higher concentration side of the membrane.

Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential.

In the exposed example, a scientist wants to determine how substance L enters a cells in a culture.

The cells maintain a 120 mM intracellular concentration of substance L. Varying external concentrations of substance L (10 to 100 mM) in culture medium (Table 1).

Table 1. Rate of entry of substance L into mammalian cells in culture

External concentration of substance(mM)      Rate of entry of substance L

                     10                                                                     5%

                     20                                                                    25%

                     30                                                                    45%

                     40                                                                    65%

                     50                                                                     80%

                     60                                                                     90%

                     70                                                                      95%

                      80                                                                    100%

                      90                                                                    100%

                      100                                                                   100%

Now, we need to identify the most likely mode of transport across the membrane for substance L, and explain how information provided helps determine the most likely mode of transport.

We know that the intracellular concentration is 120mM.

As we can see, this concentration exceeds all of the culture media concentrations. Yet, the substance keep moving into the cell.

As the concentration inside the cell is always higher than the concentration outside, we can assume that this is not passive transport because the molecule transport is going against its concentration gradient.

Hence, the remaining option is active transport. And as said before, we can see it because the substance keeps crossing the membrane toward the cell interior despite its concentration being higher in the interior of the cell than in the exterior.

-------------------------------------------------------------

Related link: https://brainly.com/question/19098496?referrer=searchResults

how long does it take for a body to decompose underwater

Answers

Answer:

Even a weighted body will normally float to the surface after three or four days, exposing it to sea birds and buffeting from the waves. Putrefaction and scavenging creatures will dismember the corpse in a week or two and the bones will sink to the seabed.

Explanation:

Hope it helps!!

Answer:

According to the Australian Museum, in the summer, a body can completely decompose in as little as nine days.

Explanation:

why does max scherzer have two different colored eyes?

Answers

Answer:

he has heterochromia iridis

Explanation:

Scherzer has an uncommon condition called heterochromia iridis that affects less than 200,000 people in the United States. The condition, which in most cases doesn't damage the eyes, is caused by the distribution and levels of melanin in the irises

•Is kidney dialysis similar to active or passive transport? Elaborate on your answer.

Answers

Dialysis is a passive process that favors the transport of small molecules across a semipermeable membrane.

A final type of passive transport is filtration or dialysis. The pores that are used in biomembranes for passive transport are generally small, and therefore only allow small molecules or ions to diffuse across them

A scientist looks at lung tissue under a microscope. Which level of
organization is simpler than lung tissue?
A. The respiratory system
B. The organism
C. Lung organ
D. Lung cells

Answers

Answer:

D. Lung cells

Explanation:

There are many organizations of living things and parts of living things. From simplest to complex the levels are: cells, tissue, organ, system, organism. So, if you have lung tissue then the only simpler organization is cells. These are simpler because cells are what make up tissue, just as tissue makes up organs. Through the levels, the more simple something is then the smaller it is, relatively.

what is the creatinine level for stage 3 kidney disease

Answers

Explanation:   Stage three: For Kidney disease patients whose serum creatinine level is in the range 178-442 umol/L, their GFR usually fluctuates in the range 30-59ml/min/1.73m2 which means kidney function has a moderate decrease.

Hope this helped u, please mark me as Brainliest

True or False?A group of organs that work together to perform big jobs for your body is an organ system.

Answers

Answer:

True :)

Explanation:

an organ system is consisted of a group of organs that work together to carry out a complex function.

Other Questions
Hello, I need some help?What is the maximum height the cannonball will travel (include units in your answer)? Which of the following American actions during the Cold War describes theuse of soft power to limit the spread of international Communism?A. The deployment of troops to defend southern KoreaB. The broadcasting of pro-American propagandaOC. The establishment of the Joint Chiefs of StaffD. The rapid buildup of powerful atomic weapons {(2, 2),(4, 4),(6, 6),(8, 8)} Is a Function { ( 2, 2 ),( 4, 4 ),( 6, 6 ),( 8, 8 ) }Is not a Function { ( 2, 2 ),( 4, 4 ),( 6, 6 ),( 8, 8 ) }{(0, 3),(3, 5),(5, 6),(8, 4)} Is a Function { ( 0, 3 ),( 3, 5 ),( 5, 6 ),( 8, 4 ) }Is not a Function { ( 0, 3 ),( 3, 5 ),( 5, 6 ),( 8, 4 ) }{(1, 2),(3, 3),(4, 8),(6, 3)} Is a Function { ( 1, 2 ),( 3, 3 ),( 4, 8 ),( 6, 3 ) }Is not a Function { ( 1, 2 ),( 3, 3 ),( 4, 8 ),( 6, 3 ) }{(3, 4),(5, 2),(5, 6),(7, 3)} Is a Function { ( 3, 4 ),( 5, 2 ),( 5, 6 ),( 7, 3 ) }Is not a Function { ( 3, 4 ),( 5, 2 ),( 5, 6 ),( 7, 3 ) }which is not a function and which is a function? Which answer does NOT correctly describe the graph of y = 5x 12? 150 miles on 4 gallons of gas. How many miles for 1 gallon of gas? The vehicles needing to be unloaded are ... Primary productivity is not limited by _______.a.the availability of sunlightb.timec.the availability of nutrientsd.access to waterPlease select the best answer from the choices providedABCD consider the linear function f(x)=4x-5 Find the values of x for which f(x)=3,f(x)=5,f(x)=-3 Which statement correctly compares the function shown on this graph withthe function y = 4x + 2?87651543 21 2 3 45A. The function shown on the graph has a greater rate of change, buta lower starting point.B. The function shown on the graph has a greater rate of change anda higher starting point.C. The function shown on the graph has a smaller rate of change, buta higher starting point. Escriban la forma correcta del verbo Ser:Mi abuela ...Group of answer choicessomosessonsoy Help please ion kno how to do it yall please help Which of the following principles holds that government may do only those things that the people have given it the power todo?O limited governmentO judicial reviewO checks and balancesO separation of powers Find the area of this figure. Round your answer to the nearest hundredth. Use 3.14 to approximateThank you! true or false Typically, a plot begins with conclusions that introduce the characters and the conflict they face. Which equation, when solved, results in a different value of x than the other three? O -7-9-20 0 + 5 3 7 X=-20 4 O 3 4. - (b)*--20 +7(49-2-06-4) 8 O in each of five scenarios, a 1 kg mass is attached to the end of a massless stick by a massless string. each stick is motionless. rank the torques acting on each stick due to the tension in the attached string. take the axis of rotation in each case to be the end of the stick opposite the string. HELP ASAP THANKS ITS DUE TODAY Five hundred students were surveyed about their favorite activity. The results are shown in the table.ActivityPercent of StudentsVideo Games25Hiking22Reading19Bike Riding18Movies16How many more students prefer playing video games to bike riding?studentsListen to the complete questionTools are not currently accessible Question 8 (1 point)Which of the following does NOT describe a type of bone pain?Costalgia OstalgiaOsteodyniaTibialgiaTenalgia The lengths of the sides of a square are multiplied by 3.5. How is the ratio of the areas related to the ratio of the side lengths?A. The ratio of the areas is the square of the ratio of the side lengths.B. The ratio of the areas is the same as the ratio of the side lengths.c. The ratio of the areas is the cube of the ratio of the side lengths.d. The ratio of the areas is the square root of the ratio of the side lengths.