What holds the base pairs together in DNA molecule?

Answers

Answer 1

Answer:

Hydrogen Bonds

Explanation:

Answer 2

Answer:

They are held together by hydrogen bonds


Related Questions

What is the charge of the outside of the DNA molecule?

Answers

Answer:

It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).

Explanation:

Negative charged hope this helped

does any one know whats wrong with my foot it has been in constant pain since yesterday now i dont know if it is a sprain or what plz help im in constant pain now i can hardly walk it is the long near the big toe right in the center of the long bone conecting to my ankle plz i need to know if i need to go to doctor.

Answers

Answer:

Yes. You need to go to the doctor.

Explanation:

Your foot could be doing this because the bone itself could be bruised or else it somehow got injured or is in some other type of pain.  

The picture shows fruit produced by two parents and fruit produced by one of their offspring.

Which of these best describes this inheritance pattern?
codominance because he fruit color of the offspring is an intermediate form of the parents’ fruit color
codominance because both parents’ colors are expressed in the offspring
incomplete dominance because both parents’ colors are both visible in the offspring
incomplete dominance because the fruit color of the offspring is an intermediate form of the parents’ fruit color

Answers

Answer:

d

Explanation:

I got it right on edge

Answer:

its D

Explanation:

because if one is Black and white the offspring would be Gray

HOPE THIS HELPS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What are the organs of the nervous system?

A. brain, spinal cord, nerves
B. brain, heart , lungs
C. skin, hair, nails
D. lungs, blood vessels, arteries

Answers

Answer:

A

Explanation:

I stuided this last year and what I found out was the nerves send a message to the brain and I forgot why the spinal cord is in there but I just know it is.

What's the interaction of tissues and organs within the circulatory system

Answers

Answer:

The cardiovascular or circulatory system is designed to ensure the survival of all cells.

Explanation:

Cells througout a multicellular organism develop different ways to perform various tasks - this is called cellular specialization and/or cell differentiation.

true or false

Answers

It is false hope this helps

Explain how the electron transport chain makes ATP.

Answers

Answer:

t

Explanation:

While Glycolysis and the Citric Acid Cycle make the necessary precursors, the electron transport chain is where a majority of the ATP is created. The Electron Transport Chain makes energy ... At the end of the chain the electrons are taken up by oxygen molecules to make water. This is why oxygen is known as the final electron acceptor.

Answer:

Explanation:

during electron transport, energy is used to pump hydrogen ions across the mitochondrial inner membrane, from the matrix into the intermembrane space. A chemiosmotic gradient causes hydrogen ions to flow back across the mitochondrial membrane into the matrix through ATP synthase, producing ATP

HELLP ASAP

1. What are air pressure, wind, cloud cover, precipitation, and temperature called?

A. elements of climate


B. elements of weather


C. elementary aspects


D. elevation pressure

Answers

Answer:

your answer is B, it is part of the weather cycle and water cycle, give me a Brainliest if correct and have a good day:)

Explanation:

The answer would be B.

SCIENCE HELP! WILL GIVE BRAINLIEST

Answers

Answer:

Sucks to suck

Explanation:

hehe

The characteristic of life that represents birds migrating to the south is

Answers

Answer:

Living things respond to their enviorment.

Explanation:

Hope that helped!

What do seeds need in order to germinate

A. Water and germs
B. Angiosperm
C. Water and warmth
D. Animals and wind

Answers

Answer:

C. water and warmth, hope this helps :)

Raising the temperature of a gas will increase its pressure if the volume of the gas

Answers

Answer:

raising the temperature of a gas will increase its pressure if the volume of the gas. and the number of particles are constant. the temperature and volume in a closed container of gas remain constant if the number of particles of gas is increased, the gas pressure will.

The fact that whales have a pelvis is which type of evolutionary evidence?

Answers

Answer:

Anatomical Evidence

Explanation:

The pelvic bones in whales are a good example of evolutionary anatomical evidence shown by vestigial evolution where whales evolved from four-legged land mammals and secondarily lost their hind legs.

Would you design cars with different masses or equal masses? Would you design your cars with high speeds or low speeds? Use Newton's Laws of motion to support your response.

Answers

Answer:

You can actually apply the same concept, obviusly you want the cars to be the same weight, and you want your cars to be not too fast, because of the same equation F=MA if the car is faster, is because it has higher acceleration, wich results in higher impact force.

Explanation:

A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towel and observes it for several days. He notices that the coat splits and a small root emerges. He concludes that—

water outside the seed coat exerted a pushing force, breaking the seed coat


air inside the seed coat exerted a pushing force, breaking the seed.



water outside the seed coat exerted a pulling force, breaking the seed coat.



gravity exerted a pulling force on the stem, breaking the seed coat.

Answers

Answer:

d

Explanation:

got it right on the test

What are two types of fermentation

Answers

Answer:

There are two types of fermentation: alcoholic fermentation and lactic acid fermentation.

Explanation: branilest plz

Please help me confused

Answers

Best choice is 2 but not sure
I am pretty sure it is option 2?

( please, do not comment if you do not know the answer, I will give Brianlist ) Please complete the following:
1. You and Tim, who is larger than you are outside with a wagon. Tim (the bigger person) gets in the wagon and you (the smaller one) pull it. As you pull
it, you accelerate until you reach a comfortable velocity. Then you stop and switch places with Tim. Tim now pulls you in the wagon, accelerating
from a stop to a comfortable velocity. Now, Tim may be bigger than you, but you have been working out and are just as strong as Tim, so the force
that Tim uses to pull the wagon is the same force that you used. You both pull with the exact same amount of force. Who was riding in the wagon
when it had the greatest acceleration during start up? Why? Use Newton's second law to explain.
2. Now Sara comes along, and she is the exact same size as you. However, she is even stronger than you! When she pulls you in the wagon, she pulls
with a greater force than when you pull her. Now who is in the wagon when it has the greatest acceleration? Explain, using Newton's second law.

Answers

Answer:

2. Sarah

Explanation:

because she is stronger, she is able to pull faster and easier because of the amount of weight she can carry vs the amount of weight you can carry. Although you are the same height, she has more muscle.

Submarines use a technology called "sonar" that bounces sound waves off of objects in the water. The sonar operators measure how long it takes for the signal to return to them. The information they get from sonar allows them to know
A.
how massive objects in the water are
B.
if objects in the water are man-made
C.
how far away objects in the water are
D.
what color objects in the water are

Answers

Answer:

c......................

Answer:

C

Explanation:

how far away objects in the water are

Hellllpppp meeeeeeeeeee

Answers

Answer:

D.

Explanation:

Feel free to give brainliest.

Have a great day, Sleepy and Maisie. Same thing goes for everyone else.

The unique shape that a mineral grows into is called its…

Answers

Answer:

Crystal form refers to the geometric shape of mineral crystals. Crystal form is caused by the symmetrical, three-dimensional arrangement of atoms inside the mineral.

Explanation:

which of the following statements best explains why plants wilt​

Answers

Answer:

needs more context bro

Plants wilt due to lack of water. Dehydration of the plant will cause it to collapse. They also wilt sometimes to prevent damage from high temperatures and the sun. Hope this helps.

What type of research method would best answer the question “How many rivers in Florida have nitrate pollution in them?”

Answers

Answer:

Field study

Explanation:

I took the quiz and got it right. Hope this helps :)

The type of research method that would best answer the given question is field study. The correct option is C.

What is field study?

Field studies are research activities that take place outside of your office or lab, in the context of the user.

There are numerous field-study methods and activities to choose from. Field studies also differ significantly in terms of how the researcher interacts (or does not interact) with participants.

Field research is a qualitative research method that involves observing and interacting with people in their natural settings in order to understand and interpret the social interactions of groups of people, communities, and society.

Field studies provide students with first-hand experiences that promote critical thinking, long-term retention, transferability, positive attitudes toward science, appreciation for nature, and increased scientific curiosity.

Field study is the type of research method that would best answer the given question "How many rivers in Florida have nitrate pollution in them?”

Thus, the correct option is C.

For more details regarding research study, visit:

https://brainly.com/question/28446342

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Your question seems incomplete, the missing options are:

A. relational study

B. cause and effect study

C. field study

18. A solution of CaCl2is_?__ [ A. acidic
B. basic
N. neutral]

Answers

I believe the answer is N

what do bacteria cells and human cells have in common

Answers

Answer:

They have cytoplasm, a plasma membrane, and ribosomes.

Explanation:

What is the process of monomers being chained together called?

A. Polymers

B. Polymerization

C. Monomer regeneration

D. Duplication

Answers

Answer: Polymerization

Explanation: The linking up of monomers is called polymerization. It is the long chains that give polymers their unique properties.

Explain why reintroducing wolves changed the ecosystem of the park?
WILL GIVE BRAINLIEST

Answers

Answer:

After 70 years without wolves, the reintroduction caused unanticipated change in Yellowstone's ecosystem and even its physical geography. ... The healthier bear population then killed more elk, contributing to the cycle the wolves started.

Explanation:

The reintroduction of wolves had several positive effects on the ecosystem.

What are the effects of reintroduction of wolves?

The reintroduction of wolves caused a trophic cascade of events in the Yellowstone national park. This resulted in an increase in the population of beavers and also brought back several forms of vegetation.

The killing of wolves in the 1930s resulted in the shifting of predatory pressure on the elk population. But, they were much less active in winter. They browsed on cottonwood plants and aspen.

But now, the predatory pressure came back on wolves. This keeps the elks more active. This also resulted in an increase in vegetation.

The reintroduction of wolves also resulted in the increase in the population of beavers because of the recovery of willow strands reflourished due to the activeness of the elk.

Therefore, the reintroduction of the wolf population greatly impacted the ecosystem of the Yellowstone national park causing a ripple of positive effects.

Read more about the ecosystem, here

https://brainly.com/question/13979184

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Mimosa pudica is an example for ____​

Answers

Shame plant is the answer

Answer:

Your answer is- Irritability

Irritability is the ability of an organism to respond to the external stimulus. The organism exhibit movement on receiving the stimulus from the internal or the external environment. The most common example of irritability is shown by the Mimosa plant which folds the leaflets when touched. The stimulus is passed on to the entire branch and then whole plant and all the leaflets close. 

Explanation:

Hope this helps u

Crown me as brainliest

Help I need help on this one

Answers

Answer:

C. Chloroplasts

Explanation:

C is the answer hope this helps

What types of organisms have mitochondria

Answers

Answer:

sup ._.

Explanation:

The mitochondrion (/ˌmaɪtəˈkɒndrɪən/, plural mitochondria) is a semi autonomous double-membrane-bound organelle found in most eukaryotic organisms. Some cells in some multicellular organisms may, however, lack mitochondria (for example, mature mammalian red blood cells). A number of unicellular organisms, such as microsporidia, parabasalids, and diplomonads, have also reduced or transformed their mitochondria into other structures.

hope this helps

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