Weak hydrogen bonds between the nitrogenous base pairs hold the two strands of DNA together. Why are the strands held together by weak hydrogen bonds instead of covalent bonds

Answers

Answer 1

Answer:

Explanation:

Hydrogen bonding is usually occur wen interaction with hydrogen atoms occur.

Hydrogen bonds joins DNA polymers because an hydrogen atom occur on on one base which is called hydrogen bond donors and another oxygen or nitrogen atoms on the base across from it which is called hydrogen bond acceptors.

Adenine “A” a purine and Thymine “T” a pyrimidine each have a donor and one acceptor, whereas Cytosine “C” a pyrimidine has one donor and two acceptors, and Guanine “G” a purine has one acceptor and two donors.

This atoms allows for hydrogen bond between them that gives them structure of DNA molecule.

A nucleotides is hydrogen bonded to T nucleotides while C nucleotides is hydrogen bonded to G nucleotide this is called complementary base pairing.


Related Questions

What molecule provides the energy that powers active transport?
A. ATP
B. Glucose
C. Water

Answers

A . pretty sure Aka ATP

Explain the cause-effect relationship between environmental changes and the extinction of species.

Answers

Answer: Anything living needs to have certain conditions, if for example a group of flightless birds who are adapted for warm weather had their environment get colder each year and more extreme the surrounding plants and other animals may have a difficult time surviving and this will cause the birds to have less food. The birds also will not be accustomed to these changes and will not be able to adapt their bodies fast enough. This also makes reproduction difficult and in turn further dwindles the population.

Hope this helps!

Explanation:

Here are some of the tRNA molecules in Lucy's white blood cells. Let's see if tRNA #1 is carrying the correct amino acid for its anticodon. Using the RNA Pairing Rules, find the correct codon for this tRNA's anticodon. RNA Pairing Rules A ↔ U ​​​​G ↔ C Anticodon CCA Codon Type Here. Amino Acid

Answers

Answer:GGU

Explanation:

GGU. I just completed it on gizmos

The tRNA molecules in Lucy's white blood cells. RNA Pairing Rules A ↔ U ​​​​G ↔ C Anticodon CCA Codon GGU.

What are anticodons?

Once the mRNA codon has been translated by the ribosome, transfer RNA, also known as tRNA, is in charge of directing the appropriate amino acid into protein synthesis. Because of this, each mRNA codon needs a corresponding tRNA anticodon.

Each nitrogenous base in RNA must mate with a complementary base according to the following rules:

Adenine is complementary with uracil A=U

Cytosine is complementary with Guanine C=G

In this case, it can be seen that:

For the anti-codon:  CCACodon:                      GGUAminoacid:               Gly

Therefore, for the tRNA anticodon CCA the corresponding codon is GGU, which codes for the amino acid Glycine (Gly).

To learn more about anticodons, refer to the link:

https://brainly.com/question/20689764

#SPJ2

Important vocabulary continued: what is the difference between a unicellular organism and a multicellular organism?

Answers

unicellular has one singular cell, multicellular has more than one

Answer:

unicellular is a organism that is only one cell. most of the time they are your bacteria and viruses. while a multicellular organism is a organism with many cells. can be anything from something you cant to to plants and animals that you can see

Explanation:

Would the control group not receive the treatment, or receive the same treatment that has been used before?

Answers

Answer:

The control group receives either no treatment, a standard treatment whose effect is already known, or a placebo (a fake treatment).

In multicellular organisms, life begins as a single cell until blank occurs, causing growth

Answers

the blank is fertilization

Can someone give your perspective on the negative impact of human activity on the environment. include pollution of marine and wetlands.....PLEASE I NEED THIS ONE!
thanks:)

Answers

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

A 200g ball begins falling from a height of 15m. If the (a) acceleration due to gravity is 10 m/s^2. How long do you calculate it will be before the object reaches the ground? Which formula will you use?

Answers

Answer:

1.732 seconds

[tex]s=ut+\dfrac{1}{2}at^2[/tex]

Explanation:

s = Displacement of ball = 15 m

g = a = Acceleration due to gravity = [tex]10\ \text{m/s}^2[/tex]

u = Initial velocity of the ball = 0

t = Time taken

From the kinematic equations we use the following formula

[tex]s=ut+\dfrac{1}{2}at^2\\\Rightarrow 15=0t+\dfrac{1}{2}\times 10t^2\\\Rightarrow t=\sqrt{\dfrac{15\times 2}{10}}\\\Rightarrow t=\sqrt{3}=1.732\ \text{s}[/tex]

The object will reach the ground after 1.732 seconds.

The formula used is [tex]s=ut+\dfrac{1}{2}at^2[/tex].

PLEASE ANSWER QUICK>>>>>Explain how enherited traits are determined

Answers

Answer:An inherited trait is one that is genetically determined. Inherited traits are passed from parent to offspring according to the rules of Mendelian genetics. Most traits are not strictly determined by genes, but rather are influenced by both genes and environment.

Explanation:

Which conclusion is supported by this evidence? Neither ball has a charge. The balls are both positively charged. One ball is positively charged, and the other is negatively charged. Each ball has a charge, but the type of charge is unknown.

Answers

Answer:

The correct answer is - Neither ball has a charge

Explanation:

If the two balls are hanged near one another without touch or an external charge to any of the balls there would be no charge present. In the given question is it given that two balls hang down without any contact in them.

So there is no possible way to generate charge and remain uncharge in their position till they get any external charge.

The correct answer is - Neither ball has a charge

Determine the amino acid chain that would result from the sequence AUG-CCC-GGA-UUA-UAG.

Answers

Answer:

methionine-proline-glycine-leucine-stop

Explanation:

Using an amino acids chart, you can line up the 3 bases in each section to find the protein chain that corresponds. The stop at the end marks the end of protein synthesis, which ends the sequence.

The compound comprising carboxylic and amino groups is called amino acids. They are vital for the formation of proteins in the cells.

Sequences are read in the three pairs of codons in the form of triplets to form a form an amino acids sequence.

The amino acid sequence that will be formed from the given sequence AUG-CCC-GGA-UUA-UAG will be:

methionine-proline-glycine-leucine-amber

AUG is the start codon which also codes for the amino acid methionine.

CCC codes for the amino acid proline and its one-letter code will be P.

GGA is glycine and is abbreviated as G.

UUA codes for leucine and is represented by U.

UAG is the amber or the stop codon which is responsible for terminating the sequence.

Therefore, Met-Pro- Gly- Leu- Amber is the amino acid sequence.

To learn more about amino acid sequences follow the  link:

https://brainly.com/question/12810773

HELPPPP pls I need answer fast like flash

Answers

Answer:

and im here hi

Explanation:

was i fast enough?

A new drug is discovered for the treatment of thyroid cancer. Which is a logical next step of the scientific method after the discovery has been successfully tested?


keeping the information private

testing the drug on animals

sharing the data with other scientists

testing the drug on people

Answers

Answer:

The answer would probably be either c or d

Vertebrates have a notochord, dorsal nerve cord, and gill slits at some point during
embryonic development.
True
False

Answers

Answer:

True.

Explanation:

Animals in the phylum Chordata share five key characteristics that appear at some stage during their development: a notochord, a dorsal hollownerve cord, pharyngeal gill arches or slits.

Explain an example why selective breeding is an example of biotechnology

Answers

Example of selective breeding: Cows that produce lots of milk. Selective breeding to create more useful varieties of animals and plants is a form of biotechnology that human beings have used for thousands of years. Biotechnology includes any use of science or technology to alter the characteristics of a particular breed or animal.

SARS-CoV-2 is a respiratory virus. What makes a respiratory virus more difficult to contain than a pathogen that is spread through contaminated food, for example?

Answers

Answer:

a respiratory virus is usually air borne. while contaminated food can only harm you if ingested. with SARS, if you breath in contaminated air, its a lot easier to get it.

Explanation:

Moving ridges of water on the surface of the ocean caused by wind and constantly cause weathering along the shoreline. *

Answers

Answer:

Waves

Explanation:

Waves are moving bodies of water that crash against the shore and cause erosion.

(Giving brainliest!!)

What are the 3 common characteristics of planets? Describe one of the characteristics of one of the planets in our solar system

Answers

Answer:

The solar system is host to two broad categories of planets. The four closest to the sun — Mercury, Venus, Earth and Mars — are the terrestrial planets. They have rocky surfaces enclosed by relatively shallow atmospheres. The gas and ice giants — Jupiter, Saturn, Uranus and Neptune — are outliers. They are much larger than the terrestrial planets, but their cores are small and icy. Most of their size is formed by a combination of gases that become denser and hotter as you get closer to the core. Scientists count eight planets overall. Pluto was reclassified as a dwarf planet in 2006.

Explanation:

Priscilla was building a circuit that used copper wires to connect a battery to a light bulb. As she connected the final wire from the light bulb back to the battery, the light bulb turned on. Priscilla knew that current was now flowing through her closed circuit. What makes the current in the circuit flow?

Answers

Answer:

The complete path provided by the closed circuit enables electric current produced by the battery to flow round the circuit

Explanation:

Electric current consists of charges (electrons) in motion from one region to another.

An electrical circuit is any closed path through which electric current can flow.

An electrical circuit consists of an energy source that supplies the electrons moving, a path along which the electrons can travel, and a load or appliance that uses the electrical energy. When the circuit is broken at any point, electrons will cease to flow since there is no complete path for it to flow. Such a circuit is known as an open circuit.

In the circuit built by Priscilla, the battery serves as a source of energy by providing the electrons that moves round the circuit. The wires provides the path for electrons to flow from the battery through the light bulb and back to the battery. When she connected the final wire from the bulb back to the battery, the circuit becomes complete/closed and current then flows to light up the bulb.

8. What phase of mitosis is the cell pictured below in? Explain how you know that.

Answers

Answer:

Anaphase.

Explanation:

We can see that the separated sister chromatids are being pulled by the cell's centrosomes (microtubules) from both poles of the cell.

Which does not require a moist environment for reproduction?
fern
moss
conifer

Answers

Answer: Conifers

Explanation: they do not rely on water to unite sperm and egg.

All____species are dangerous to ecosystems

Answers

Answer:

invasive

Explanation:

hope it's help

Which describes chemical digestion? *

Answers

Mechanical digestion

Cells use a molecule called (DNA / RNA / ATP / CMP) to store and release energy like a battery. The energy is stored in chemical bonds between (nucleotide / oxygen / phosphate / ribose) groups of the molecule, and the energy is released when the chemical bonds are broken.

Answers

Answer:

Cells use a molecule called ATP to store and release energy like a battery. The energy is stored in chemical bonds between phosphate groups of the molecule, and the energy is released when the chemical bonds are broken.

Explanation:

The Adenosine Triphosphate (ATP) is a molecule made of adenine, ribose, and three phosphate groups, which are the ones that store the energy in its bounds.  The ATP is the molecule that provides the energy to the different processes that happen in a cell. The molecule is made from the glycogen, fats, and carbohydrates that the body has absorbed in the intestines. When the body needs energy, the ATP loses one or two phosphates, becoming ADP and AMP. When the phosphorylation happens, which is the loss of phosphate, the energy is released.

Rapid reproduction is an advantage of which process?
A. gamete formation
B. sexual reproduction
C. asexual reproduction
D. chromosome duplication

Answers

Answer:

I believe the correct answer is asexual reproduction because they can reproduce fast, and with multiple offspring. Hope this helped you!

I believe it is asexual reproduction

If we were allowed to fish in these waters, how would it affect the food chain? The dolphins in particula

Answers

Answer:

Things that would/could affect the dolphins:

Driving away food sourcesOverfishing would cause a lack of food sourcesOverfishing could make them along with other species compete for food/survivalAccidents involving dolphins with boats and fishing equipment

Explanation:

Hopefully I helped. IF SO CAN I HAVE BRANLIEST.

Which of the following statements about reflective and refractive telescopes is not true?
a. Both require very little light to create an image
b. Both magnify distant objects
c. Both can be up to five meters in diameter
d. A refractive telescope uses a lens while a reflective telescope uses a mirror to magnify

Answers

It is the answer for it is d

which phase of the cell cycle do cells go to when they are not ready to divide?

Answers

Answer:

Interphase

Explanation:

Answer:

interphase

Explanation:

I hope this helps!!!

Body processes are regulated by which nutrients?
proteins
carbohydrates
All options are correct
lipids

Answers

I think..............

All options are correct




Answer:

C

Explanation:

Protiens, Carbohydrates, and Lipids all influence bodily processes.

Explain the difference between an invasive species and a nonnative species.

Answers

Answer:

Non-native species spread by natural process or human activities. Most non-native or indigenous species are harmless. They are called exotic species. ... The main difference between exotic and invasive species is that exotic species is harmless to the ecosystem whereas invasive species is harmful to the ecosystem.

Explanation:

Answer and Explanation:

Invasive is a species of plant or animal that outcompetes other species causing damage to an ecosystem..

Non-native: a species that originated somewhere other than its current location and has been introduced to the area where it now lives..

Non-native species are also called exotic species..

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