DNA is often compared to a twisted ladder. In this analogy, what forms the
rungs of the DNA ladder?
A. Pairs of nitrogenous bases
B. Pairs of nucleotides
C. Pairs of sugars
D. Pairs of phosphate groups

Answers

Answer 1
A- on the sides you would find the phosphate and sugar so the center is the AT or CG
Answer 2

The pairs of nucleotides result in the twisting of strands. Therefore, option "B" is correct.

What is nucleotide base pairing?

There are five types of nucleotide bases adenine, cytosine, guanine, thymidine, and uracil. These divide into two classes of nucleotides pyrimidine and purine nucleotide bases.  Pyrimidines are uracil, thymine, and cytosine whereas adenine and guanine are purine.

In RNA, adenine, cytosine, and guanine are present but thymine is replaced by uracil. Pyrimidine always binds with the purines through hydrogen bonding. Adenine binds with thymine. Cytosine binds with guanine. But when adenine pairs with uracil in RNA.

Therefore, nucleotide base pairing determines the twisting of the DNA strand depending on the type of nucleotide present.

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Related Questions

Scientists are trying to find the causative agent for a new disease in chicken. They grow a culture of what they think is the causative agent. They then inoculate a large group of healthy representative chicken with the agent, but none of the chicken become ill. Applying the Germ Theory of Disease, which of the following could explain the results (choose all correct answers)?
A. They isolated resident microbiota (look in your textbook for definition)
B. The suspected causative agent is found in healthy chickens.
C. The true causative agent is not an infectious disease.
D. The suspected causative agent is an infectious disease.

Answers

I believe it would be A and D

"A passive smoker will experience the similar effect as an active smoker" Do you agree with the opinion? Justify.​

Answers

No. Because the passive smoker doesn’t inhale.

describe Human Trafficking​

Answers

Explanation:

Introduction  Human trafficking is a group of crimes involving the exploitation of men, women and children for financial gains which is violation of fundamental human rights  Human trafficking is the 3rd largest international crime  Over one million people trafficked annually  Millions of men, women and children are victims of human trafficking  Human trafficking is a part of the larger problem of slavery

 human trafficking is when people are transported, by force or deception, to become enslaved  Traffickers use blackmail, abuse, and threats to force victims to comply with their wishes in the destination country  Usually caused by poverty/lack of economic opportunities, especially for women and children, and a demand for certain services in the destination country

The bacteria chromosome is

Answers

one long, single molecule of double stranded, helical, supercoiled DNA. In most bacteria, the two ends of the double-stranded DNA covalently bond together to form both a physical and genetic circle
In most bacteria, the two ends of the double-stranded DNA covalently bond together to form both a physical and genetic circle.

what is the shark's babies called?
please help me. ​

Answers

Answer:

A baby shark is referred to as a pup.

To my knowledge It is called a pup

Someone please help what goes with what


1. An atomic particle with a negative charge

2. An atomic particle with a positive charge

3. An atomic particle with no charge or neutral

Answers

Yellow is a proton
Blue is a neutron
Red is an electron

Answer:

yellow is a proton

blue is a neutron

orange is an electron

Explanation:

The neutrons and protons are in the center of the atom, and the electrons circle around the center.

Which of the following describes how the United Nations plans to correct the issue of deforestation?
by helping poor countries reach economic security
o by implementing small anti-climate change measures
by focusing on conditions within politically stable countries
o by imposing strict penalties on countries with poor environmental practices

Answers

Answer:

I think it is by implementing small anti-climate change measures but I'm not sure

What are some ways we can reduce climate change

Answers

Power your home with renewable energy and speak up!

measurement plays an important role in our daily life.​

Answers

Answer:

Yes,measurement plays an important role in our daily life because we do various activities like export import selling and buying in our day to day life. These activities are impossible without measurement.

#(Please mark as brainliest (: )

Answer:

1. It makes buying and selling goods easier.

2. It helps to get the accurate amount of physical quantities.

3. It is important to perform experiments in a science laboratory.

4. It is important in laboratories for getting proper amount of medicines.

5. It is important in construction of roads, buildings, bridges, etc.

In the _________________________were the absorption of nutrients takes place, the enzyme ___________________hydrolyses ___________________ into _________________________

A. small intestine -lipase-lipid-fatty acid and glycerol

B. mouth-salivary amylase-lipid-amino acid

C. small intestine-lipase-protein-amino acid

Answers

Answer:

A)

Explanation:

In the small intestine where the Absorption of nutrients takes place, the enzyme lipase hydrolyses lipid into fatty acid and glycerol

“Dear Basketball" by Kobe Bryant Analysis
+
Kobe says that basketball "asked for his hustle", but he "gave his heart because it came with so much
more". What could his heart give to the game of basketball that his hustle could not?

Answers

Answer:

He describes basketball as asking him for his “hustle.” Instead, he gave the sport his heart. The speaker worked hard because he wanted to do the game justice. He wanted to show his love for the sport because that's “what you do / When someone makes you feel as / Alive” as basketball made him feel.

what is Up-regulation

Answers

Answer:

The process by which a cell increases its response to a substance or signal from outside the cell to carry out a specific function.

I Hope this will help you if not so sorry :)

In the biological context of organisms' production of gene products, downregulation is the process by which a cell decreases the quantity of a cellular component, such as RNA or protein, in response to an external stimulus. The complementary process that involves increases of such components is called upregulation.

PLEASE HELP ME I NEED ASAP.
Complete the following table on the different types of microscopes.

Answers

Answer:

A compound light microscope is a microscope with more than one lens and its own light source. In this type of microscope, there are ocular lenses in the binocular eyepieces and objective lenses in a rotating nosepiece closer to the specimen.

The scanning electron microscope (SEM) produces images by scanning the sample with a high-energy beam of electrons. As the electrons interact with the sample, they produce secondary electrons, backscattered electrons, and characteristic X-rays.

Explanation:

why was mandels work not accepted at the time

Answers

Answer:

His work was not accepted at the time because during that time DNA had not yet been discovered.

.5km/sec north by northwest is an example of
speed
acceleration
velocity
distance

Answers

Answer:

The answer is Distance.

Why do you think that Darwin's principle of natural selection was important and how did it relate to future ideas of biological evolution.

Answers

Explanation:

everything can be found in the picture

Through this process of natural selection, favorable traits are transmitted through generations.

Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.

What is speciation?Speciation, the formation of new and distinct species in the course of evolution. The species evolve by genetic modification.

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Which event happens first when you get a splinter?
A. The white blood cells produce antibodies.
B. The damaged tissue releases chemical messengers.
O C. The white blood cells eat pathogens near the wound.
D. The damaged tissue swells and becomes painful.

Answers

Answer:

I believe it is B. The damaged tissue releases chemical messengers

Explanation:

This is because the chemicals of the so-called complement system start drilling holes into bacterial cell walls. Macrophages, big eater cells, devour any invaders they meet. This is to prevent furthur infection!

26._____The first trophic level is usually occupied by herbivores. 27.__True___It is possible for a plant to be a carnivore. 28._____A habitat refers to the role of a species in its ecosystem. 29._____Biotic factors include sunlight, soil, temperature, and water. 30._____A food web can be represented by many interconnected food chains. 31._____There are rarely more than four trophic levels in an ecosystem. 32._____Like water, energy is also recycled through an ecosystem.

Answers

Answer:

The correct answer is -

26. false

27. true

28. false

29. false

30. true

31. true

32. false

Explanation:

The first trophic level is usually primary producers and herbivores are the primary consumers placed in the second trophic level.

There are some plants that depend on insects and small organisms for their nutrition.

Habitat is the living area of an organism it can be understood as address.

Biotic factors are the living organisms of the ecosystem while sunlight, soil, temperature are abiotic factors.

A food web is complex as it is made up of several food chains interconnected.

Normally there are only three or four trophic levels in most of the ecosystem.

Energy is not recycled in ecosystems like water or carbon.

Describe how detrital sedimentary rocks are classified.

Answers

Detrital sedimentary rocks are mainly classified by the size of their grain. The largest grain is a boulder, followed by a cobble, a pebble, sand, silt and finally the finest grain, which is clay. These grains of sediments are what get cemented together to form sedimentary rocks.

If you had a sequence of DNA that was ATGCCATTGC, what would be the complementary DNA Sequence?

Answers

Answer:

TACGGTAACG

Explanation:

T-A

C-G

WILL GIVE BRAINLIST PLEASE HELPPPP
What is the difference between 1 unit of magnitude on the Richter scale?
100 times stronger
1000 times stronger
10 times stronger
1 times stronger

Answers

Answer:

10 times stronger

Explanation:

GIVE them BRAINLIST

Who are autotrophs ?​

Answers

Answer:

autotrophs are organisms that make their own food, like plants, who make their own food through photosynthesis.

An autotroph is an organism capable of making nutritive organic molecules from inorganic materials. It could be through photosynthesis (involving light energy) or chemosynthesis (involving chemical energy).

EX: Polymerization and the breakdown of a polymer are two opposite reactions. What role does a water molecule play in both of them?

Answers

Answer:

A water molecule is released during polymerization, which helps in the formation of a bond, and it is added during the break down of a polymer, which helps in breaking the bond.

describe the effect of increasing the light intensity on the rate of photosynthesis in pelargonium with green leaves​

Answers

Increased light intensity, more energy for photosynthesis, more light dependent reactions occur

( I WILL GIVE BRAINLIEST IF YOU GET IT RIGHT!!!!!)
Are sea sponges closer in relationship to humans, boxwood shrubs, paramecium, or moss? Explain using evidence to support your claim.​

Answers

Answer:

Humans

Explanation:

A new research now suggests that possibly the entire animal kingdom, including humans, shares important genetic mechanisms with sea sponges. Now published in the journal Science, the discovery has been made by a team of scientists led by Dr. Emily Wong from the Victor Chang Cardiac Research Institute and UNSW Sydney.

What is ballistochory?

Answers

Answer:

Ballistochory. So it is called when the seeds are forcefully or explosively spread. The aim is to "throw" the seed from the parent plant as far as possible.

Explanation:

This is what is known by the violent and explosive dispersal of the seeds. The aim is to "throw" the seed from the parent plant as far as possible. (This works because the wind resistance is not high for seeds.)

Answer:

the dispersal of seeds by force

Explanation:

Which is a method that scientist used to determine the composition of earths layers

Answers

Answer:

Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers.

Explanation: GOOD LUCK

Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers

Many factors affect rigor mortis, such as the type of clothing the person was wearing. Experts from different sciences agree that the definition of death is the end of life. Blowflies are one of the first insects to arrive at a dead body and are very useful in determining the time of death. Livor mortis refers to the color of a dead body. The only two manners of death are natural death and homicidal death. Mechanism of death describes what has occured in the body to cause death. The presence of drugs in a corpse cannot be determined by a chemical analysis of larvae found feeding on the body. In the first 12 hours, a dead body cools about 1 degree F per hour. Within minutes of a death, certain insects are attracted by the smell of the first stages of decomposition. The Body Farm is a fictional account of the work of a country coroner.

Answers

Answer:

- Many factors affect rigor mortis, such as the type of clothing the person was wearing. True

- Experts from different sciences agree that the definition of death is the end of life. True

- Blowflies are one of the first insects to arrive at a dead body and are very useful in determining the time of death. True

- Livor mortis refers to the color of a dead body. True

- The only two manners of death are natural death and homicidal death. False

- Mechanism of death describes what has occured in the body to cause death. True

- The presence of drugs in a corpse cannot be determined by a chemical analysis of larvae found feeding on the body. True

- In the first 12 hours, a dead body cools about 1 degree F per hour. False

- Within minutes of a death, certain insects are attracted by the smell of the first stages of decomposition. True

- The Body Farm is a fictional account of the work of a country coroner. False

Explanation:

Death refers to the permanent cessation of the biological activities in an organism as a whole. Rigor mortis refers to a recognizable sign of death, which is caused by different changes in the muscles after death. Blowflies are insects that can be attracted by the smell of dead and decomposing bodies because they need to identify warm-moist and protein-rich sources to develop their eggs. Livor mortis is the red/blue/purple discoloration in the body skin after death. The manners of death can be divided into 1-accidental, 2-natural, 3-suicidal, 4-homicidal, and 5-undetermined. The mechanisms of death refer to the specific physiological derangements that can lead to the cessation of life (e.g., a heart attack), whose understanding can be essential to elucidate a criminal case. The presence of drugs in a dead body can be determined by an autopsy. The rate at which a dead body cooling depends on the relationship between the body temperature and environmental temperature (e.g, elevated body temperatures and cool environmental conditions are known to increase this value). A body farm can be defined as a research facility where the decomposition of dead bodies can be examined.

Compare how the human body breathes in and out. Describe what happens to the ribcage, the diaphragm and chest volume. (6 marks) In this question you get marks for how well your answer is written. You will get marks for: spelling grammar  organising your ideas and information clearly using key scientific words.


Will give brainiest for best organised detailed answer. :)

Answers

•When we breathe in our rib cage swing upwards and outwards, diaphragm contracts and flattens, the expand and air is drawn in. The thorax also increases.
•When we breathe out our rib cage swing inwards and downwards, diaphragm relaxes and arches up, lungs become smaller and air is drawn out. The thorax size also decreases.
• During inhaling the concentration of oxygen is more
• During exhaling the concentration of carbon dioxide is more.

(b) Explain clearly how the circulatory system and the respiratory system in the human body work together. ​

Answers

Answer:

The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.

Explanation:

Hope this is helpful.

Other Questions
Use the following situation to answer the questions that follow: A ball is thrown up in the air, and it's height (in feet) as a function of time (in seconds) can be written as h(t) = -16t2 + 32t + 6.Describe in detail (using formulas and/or specific steps needed) TWO ways to find the maximum height reached by the ball. The growing support for civil rights following World War II led countries to begin promoting: A. access to the global community. O B. pride in national identities. O C. rapid economic growth. D. equality for citizens of all races. Commercial Services.com Corporation provides business-to-business services on the Internet. Data concerning the most recent year appear below:Sales $3,000,000Net operating income $150,000Average operating assets $750,000Required:Consider each question below independently. Carry out all computations to two decimal places.1. Compute the companys return on investment (ROI).2. The entrepreneur who founded the company is convinced that sales will increase next year by 50% and that net operating income will increase by 200%, with no increase in average operating assets. What would be the company's ROI?3. The chief financial officer of the company believes a more realistic scenario would be a $1,000,000 increase in sales, requiring a $250.000 increase in average operating assets, with a resulting $200,000 increase in net operating income. What would be the companys ROI in this scenario? The spring in the toy is compressed 0.070 meter by using a downward force of 12.0 newtons. Calculate the spring constant, in N/m, of the spring. If you are unhappy about the current transportation system, which of the following politicians will you vote for?A. Politicians who advocates going to war abroad B. Politicians who wants to improve roads and highways C. Politicians who aim to improve the educational systemD. Politicians who suggest increasing the sales tax Imagine that you're a rock star and you're telling a newspaper reporter about your plans for your next concert. Talk about the equipment you'll be using (instruments, speakers, amplifiers, microphones, sheet music, etc.) and what kinds of songs you're planning to perform. Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution set of this problem?x less-than negative 5x greater-than negative 5x greater-than negative 1x less-than negative 1 Find the measure of angle X. The horizontal lines are parallel. HINT: The sum of all interior angles in a triangle is 180 degrees. In Act II, scene v of Romeo and Juliet, the nurse returns to Juliet with news from Romeo. Which emotion motivated the nurse to go on this quest for Juliet in the first place?lovefearguilthope How do you solve this?? pasagot po please! ito po ung no.5 hindi po kase kasya5.labis ang INILAGAY NA SANDATA SA KAMAY ng mga prayle at mga may katungkulan sa mga sawinpalad.a.pagmamalupit b.pagbigay ng sandatac.pagtanggapPASAGOT PO ITO NA PO LAST NA LAST SA FILIPINO KK According to Anti-Federalist George Mason, why would state rights no longer be protected? State governments would no longer exist under the Constitution. Local law enforcement would be too busy enforcing national laws. Governors could choose not to enforce laws under the Constitution. National laws and the new Constitution would be stronger than state laws. What caused the ten of war to happen A room has a length of 12 metres and width of 5 metres. What is the area of the room? Working out please What is the answer for this one List or describe two ways a person who identifies as Latino, Latina, Latinx, Latine, Hispanic, Central American, South American, and/or Spanish might experience stereotyping A school raises 468 for their chosen charity by dressing up.Tge money raised is increased by 42% by holding a cake sale.The headtheacher makes up the total sum to 700.How much does the headteacher donate? 11. Find the area of each figure. Show all your calculations a. 3 cm 13 cm Te voy a contar la verdad con tal de que no se la _ a nadiecuentascuentescontabascontaras urgent! im not very good at this need a bit of help, see the picture below