What chemical bond is responsible for the existence of the sugar-phosphate backbone of DNA

Answers

Answer 1

Answer:

Phosphodiester bonds

Explanation:

Answer 2

Answer:

The answer is phosphodiester bond.

Explanation:

The sugar phosphate backbone is an important stuctural component of DNA. It consists of 5-carbon deoxyribose sugars and phosphate groups. These sugars are linked together by a phosphodiester bond, between carbon 4 of their chain, and a CH2 group that is attached to a phosphate


Related Questions

Which of the following is a necessary trait of a good hypothesis?

Answers

Answer:

Must be TESTABLE and falsifiable.  

Explanation:

1.  Should be empirical statements

2. Must be general.  It explains a general phenomenon, rather than a single occurrence.

3.  Plausible - it shouldn't defy logic.

4.  Specific, meaning that the concepts are carefully defined.

5.  Testable!

The most complex processing of sensory information occurs in the cerebral cortex.
ОТ
OF

Answers

Answer:

TRUE

Explanation:

took the test

Answer:

True

Explanation:

I took the quiz and got 100%

If the potential difference across a 30.0-ohm resistor is 10.0 volts, what is the current through the resistor?
O A 0.25 A
OB 3.0 A
OC 0.33 A
OD. 0.50 A

Answers

Answer:

C 0.33 A

Explanation:

The current through the resistor can be calculated using the formula;

V = IR

Where; V = Voltage (volts)

I = Current (Ampere)

R = Resistance (Ohms)

According to this question, I = ?, V = 10.0volts, R = 30.0ohms

V = IR

I = V/R

I = 10/30

I = 0.33A

Hence, the current through the resistor is 0.33A

Which mineral is present is banana?​

Answers

Answer:

Potassium

Explanation:

They are packed with potassium, a mineral electrolyte that keeps electricity flowing throughout your body, which is required to keep your heart beating. Bananas' high potassium and low sodium content may also help protect your cardiovascular system against high blood pressure,

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PLZ MARK BRAINLIEST



After the 2004 tsunami disaster in Asia, there were reports that trained elephants had moved away

from the coastline before the tsunami struck. Scientists wondered if elephants had sensed the oncoming wave and the earthquake that created it. Elephant trunks have two kinds of nerve endings that are sensitive to pressure differences, but little is known about nerve ending distribution in the elephant's skin or feet. An elephant has recently died at a nearby zoo and scientists have decided

to dissect one of its feet to search for any special nerve endings. Results show a high density of pressure-sensitive nerve endings in the front of the foot and along the edges, which supports the

idea that elephants are sensing seismic signals produced by such disasters as earthquakes.


1. Independent variable

2. Dependent variable

4. Constant

5.controls

6.hypothesis

7. Sample size

8. Presence of repeated measures

Answers

Answer:

In the given dissection for the finding of the idea that elephant can sense the seismic signals generated by natural disasters are as follows:

Independent variable: it is the variable which influences the dependent variable or the dependent variable depends on. Here the area of the feet that is chosen to be dissected is the independent variable.

Dependent variable: It is the variable that is manipulated or influenced by the independent variable, in this dissection the sensitive to the pressure, nerve ending in the selected area of the feet.

Constants: It is a variable that remains constant or fixed in the complete experiment. The number of the selection area is constant hat is in one foot here.

Controls: There is no such control present in this experiment However, the density of pressure-sensitive nerve endings can be considered as control.

Hypothesis: the pressure-sensitive ending is significantly enriched in the feet of the elephant.

Sample size: subject in this study is only one elephant and one foot so the sample size is 1.

Presence of repeated measures: Repeated measures are not performed during this study is only one experiment of dissection is performed on a single subject.

At rest, the human heart pumps about 5 liters of blood per minute. How many liters are pumped in 1 year? ​

Answers

Answer:

2628000

Explanation:

take how many minutes in a year (525600) and multiply it by 5

.The water on Earth came from ancient ..

Answers

Answer:

Half of Earth's water may have come from ancient asteroid collisions Asteroid samples returned to Earth in 2010 provide new evidence of an extraterrestrial origin for half the planet's water.

Explanation:

Answer:

from god or an ice age

Explanation:

Which is an example of a pioneer species? O lichens O ferns O spiders O squirrels​

Answers

Answer:

lichens

hope that helps you

Answer:

Number A aahhahhha

Explanation:

Are humans heterotrophs or autotrophs? Pleas Help Me.. Thx:)

Answers

Answer:

Heterotroph

Explanation:

They require other sources to sustain themselves and cannot produce their own energy.

Answer:

Heterotrophs

Explanation:

Producers are the most common type of autotrophs because they are able to make food out of energy and any other materials they happen to find or lie upon. Humans cannot create food from energy because they are not producers.

Heterotrophs are organisms that eat consumers or producers. A human can eat other consumers (meat/omnivore) and eat plants (producer) like lettuce or kale.

Best of Luck!

match each biome with the correct description.

1. driest biome
2. largest biome
3. most species
4. least species
5. four seasons
6. used to grow crops

- rainforest
- tundra
- desert
- coniferous forest
- temperature deciduous forest
- grasslands​

Answers

Answer:

Rain forest: Most species

Tundra: Least species

Dessert: Driest Biome

Coniferous Forest: largest biome

Temperate Decidious Forest:

Grasslands: Used to grow crops

Explanation:

Match each biome with the correct description.

Desert - The driest biome.Taiga or boreal forest - The largest biome.Rainforest - The biome with the most species.Tundra - The biome with the least species.Temperate deciduous forest - The biome with four seasons.Grasslands - The biome used to grow crops.

What is Biome?

A biome is a large, recognizable geographic area that is home to a variety of ecosystems and communities of plants and animals that have evolved in a particular environment, including climate, soil, and topography. Temperature, rainfall, altitude, latitude, and the types of plants that grow there are used to identify biomes.

Aquatic biomes such as tundra, taiga or boreal forests, temperate deciduous forests, tropical rainforests, grasslands, savannas, deserts, and marine and freshwater habitats are just a few of the primary categories of biomes. Each biome has a different set of traits and characteristics that influence the types of plants and animals found there.

Therefore, match each biome with the correct description.

Desert - The driest biome.Taiga or boreal forest - The largest biome.Rainforest - The biome with the most species.Tundra - The biome with the least species.Temperate deciduous forest - The biome with four seasons.Grasslands - The biome used to grow crops.

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Which protects nerve endings at the ends of fingers and toes?

joints
hair
nails
muscle

Answers

Answer:

nails ez pe ze

Explanation:

edg 2020 and i smart

Answer: C

Explanation:

What is the process called that takes sunlight, carbon dioxide and water to make sugar and oxygen?

Answers

Answer:

Photosynthesis

Explanation:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.

Answer:

Photosynthesis

Explanation:

I_11) WHICH THREE ELEMENTS ARE FOUND IN ORGANIC COMPOUNDS
A) C,H,O
B) C, H, Ne
C) N, H,
ĐÀ N, C#, Ph

Answers

Answer:

a) CHO

Explanation:

Usually its four elements: hydrogen, carbon, oxygen and nitrogen, are the major components of most organic compounds

What is the likelihood of a category 5 hurricane making a fall in Maryland

Answers

The answer fam is....... There is a very low probability that the Maryland coast will be hit by a magnitude 5 earthquake.

what are the funtions and parts of the skeletal system?

Answers

Answer:

I'm actually working on this as well, haha!

Explanation:

The skeletal system can help protect internal organs from injury. For example, the skull protects the brain, while the thoracic cage protects the heart and lungs.

PLZ PLZ PLZZZZZ HELP MEEEE!!!!!!!!!!!!! BUT YOUR ANSWER BETTER ACTUALLY HELP ME OR ILL REPORT YOU AND I'LL GET MY POINTS BACK >:(

Answers

One room apartment, the prokaryotic cells are simple cells that don’t have nuclei or many other structures that are in eukaryotes.

They have the flagellum which acts like a boat rudder or a tail to help them move.

Coccus- the O in the word is like the shape
Spirillum- Spiral
bacillus- i’m not really sure, they’re just kind long ovals ig

Anthony was saving money each week from his allowance to purchase new basketball shoes for a total of $245 he already had $65 saved up how many weeks will it take for him to reach $245 if he saves $15 each week

Answers

Answer:

It will take him exactly 12 weeks

Explanation:

If he already has 65 you subtract that from 245 and you get 180

You divide 180 by 15 to get the number of weeks and you get 12

A radioactive substance has a half-life of 1.25 million years. What is the age of a rock in which 6.25% of the original radioactive atoms remain? 5 million years old 6.25 million years old 3.75 million years old6 2.5 million years old 1.25 million years old 625 thousand years old

Answers

Answer:

The age of the rock is 5 million years

Explanation:

Fraction of radioactive substance remaining = 6.25% = 625/10000 = 1/16

Number of half-lives undergone by the substance to leave behind 1/16 of the original sample

1/16 = (1/2) * (1/2) * (1/2) *(1/2)

Therefore, the substance have decayed 4 times

One half=life = 1.25 million years

Four half-lives = 4 * 1.25 million years = 5 million years

Therefore, the age of the rock is 5 million years

which of the following is most important when determining the type of biome that is found in a certain area ?​

Answers

Climate!!! It's climate

Answer:

Climate!!! It's climate.

Explanation:

i will mark brainliest

identify 3 abiotic factors and their roles in the economy in your own words

Answers

Answer:

Abiotic factors are the non-living parts of the environment that have a major influence

on living organisms. They can help determine things like how tall trees grow, where

animals and plants are found, and why birds migrate. The most important abiotic factors

include water, sunlight, oxygen, soil and temperature.

Water (H2O) is a very important abiotic factor – it is often said that “water is life.” All

living organisms need water. In fact, water makes up at least 50% of almost all living

things. Some organisms are made up of 95% water! Water is also essential because

other substances easily dissolve into it. This allows water to carry nutrients to cells and

wastes away from them. Without water, animals become weak and confused, and they

can die if they don’t get enough water. Think of how you feel after you take a long run.

Do you feel thirsty? This is your body signaling to you that you need water.

Sunlight is the main source of energy on Earth, which makes it an extremely important

abiotic factor. Sunlight is necessary for photosynthesis, the process where plants use

carbon dioxide (CO2) and water to make sugar – food for the plants that later becomes

food for animals. Without the sun, plants could not live, and without plants, animals could

not live! Sunlight is also plays a role in the production of oxygen and to an area’s

temperature, which are discussed in detail below.

Like water, oxygen (O2) is another important abiotic factor for most living organisms.

Oxygen is used by cells as an energy source. It gives cells the energy they need to carry

out important functions, for growth, and reproduction. Without oxygen, humans and the

other organisms that use oxygen would not be able to live! Oxygen is produced by green

plants through the process of photosynthesis, and is therefore directly linked to sunlight.

Soil is considered an abiotic factor since it is mostly made up of small particles of rock

(sand and clay) mixed with decomposed plants and animals. Plants use their roots to get

water and nutrients from the soil. Soils are different from place to place – this can be a

big factor in which plants and animals live in a certain area.

Temperature is an abiotic factor that is strongly influenced by sunlight. Because the

amount and strength of sunlight varies by location, the earth’s surface has different

temperatures in different zones. While some animals and plants can bear extreme heat

or extreme cold, others can only survive well in moderate temperature ranges. In fact, all

plants and animals are adapted to survive between a minimum and maximum range of

temperatures. For example, a penguin from the polar region couldn’t live in a 110°F

desert. It would be too hot! Temperature, then, helps to influence which plants and

animals can live in an area.

A plate moves south at a rate of 2 cm/year. How many meters south from its original location will the plate be in 4,000 years?

Answers

Answer:

not 8.000

Explanation:

y

Please Mark Me BRAINLIEST!!!

Answer:

80 years

Explanation:

edg 2020

Using internet resources, describe how advances in imaging and wireless communication for space exploration have led to changes in imaging devices and communication on Earth.

Answers

Answer:

The internet has revolutionized the world and made communication, fast and easy.

Explanation:

The use of the internet and wireless communication has impacted the lives of many as the process of communication has lead to changes in how we view, collect, and analyze and the world is around us. The use of GIS, GPS, and many cartographic tools and techniques has helped to spread our knowledge and awareness about the geographic events related to weather, climate, and changes associated with the temperatures.

Advances in imaging and wireless communication for space exploration

have led to a faster internet and wireless communication on earth.

The use of the faster internet and wireless communication as a result of the

technological development makes the way data and information is gathered. This includes more digital ways rather than archaic ways through computers and phones.

The use of techniques such as GPS monitoring helps to determine the

location of a person or an item. It also brings about more awareness about

weather, climate due to access to temperature changes.

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ATP can convert to ADP during ___________.

Answers

Answer:

phosphorylation

Explanation:

ATP usually releases energy by breaking down the weak phosphate cell present.  The energy released due to the breaking down of the phosphate cell is then utilized. The ATP is converted to ADP. Whenever a cell feels the necessity for energy it releases a phosphate to gather the energy. It is an automatic and ongoing process. The weak bond between the second and the third phosphate is always targeted for turning ATP to ADP. This is the reason ATP is considered the main energy currency for the cell.

Answer:

phosphorylation

Explanation:

Thats just it

A population distribution shows _______.

a.the distribution of age groups within a population

b.the amount of organisms in a unit area

c.the total number of organisms in a population

d.where and in what arrangement organisms are located

Answers

Answer:

D

Explanation:

Think about the definition of “distribution “.

Answers:
D. Where and in what arrangement organisms are located
explanation: sorry if it's wrong

The picture shows a model of a cell.

What is the main function of the parts labeled Xin the model?

O A. To store enzymes that break down food

B. To provide cells with energy for their activities

C. To use energy from sunlight to make sugars

D. To hold and protect the cell's DNA

Answers

Answer:

it is b: to provide energy for their activities.

Explanation:

the organelle that's labeled x is a mitochondria.

Answer: the answer is b I just got iy

Explanation:

A wave hits a wall as shown. A brick wall with a green arrow pointing to the wall from below and right at a shallow angle. Another green arrow starts where the first arrow touched the wall and goes up and left at the same shallow angle. As the wave interacts with a wall, which kind of wave interaction is shown?

Answers

Answer:

b

Explanation:

Answer:

D. Reflection

Explanation:

Got It Right On EDGE.

Explain Meiosis.
Please do it in 3 sentences or more

Answers

Answer:

Explanation:

Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms used to produce the gametes, such as sperm or egg cells. It involves two rounds of division that ultimately result in four cells with only one copy of each paternal and maternal chromosome.

Which of these best describes air pressure?
a
b
amount of pressure exerted in the atmosphere due to the movement of earth
amount of pressure exerted by dust particles in the atmosphere
amount of pressure caused by volcanoes and wildfires in the atmosphere
amount of pressure in the air caused by gravity and matter moving on all objects
h
Od
Question 2 (1 point)

Answers

Answer:

it would be (d) amount of pressure in the air caused by gravity and matter moving on all objects

Explanation:

d. amount of pressure in the air caused by gravity and matter moving on all objects.

Air pressure:The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. As the pressure decreases, the amount of oxygen available to breathe also decreases. Atmospheric pressure is an indicator of weather.

Thus, the correct statement that describes air pressure is the amount of pressure in the air caused by gravity and matter moving on all objects i.e. option d.

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Look at Diagram 1.The boxed structure is called a/an-

A. DNA molecule
B.nitrogenous base
C.nucleotide
D.base pair

Answers

D ,,,,i believe !!!!!!!!!?

Which organisms contain chloroplasts to help with food production?

Answers

Plant cells, and some protists.
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Sitting down at her favorite restaurant, Aliyah is looking at the menu trying to figure out what she would like to have. She notes an asterisk next to one of the dishes and finding the note at the bottom of the menu, it says, Although we will cook to order, be aware that consuming this dish raw or undercooked may increase your risk of contracting salmonella. Which menu item is MOST likely being referenced here?A. Eggs BenedictB. Blackened SalmonC. Chocolate CakeD. Spinach Lasagna 1.ella____de espana2.Tu_____venezolano3.Usted___de Argentina What is most likely the meaning of protg in the first sentence? Which of the following statements is true about atoms? Travel agents have traditionally acted as the middle person between individuals seeking travel and companies offering travel products, such as airlines, hotels, and cruise lines.A. TrueB. False Surveys usually consist of questions with a choice of answers. These answer options are typically in a multiple-choice format. Write at least one question and three or four possible answers that you would include in your survey. Pls I need this one PLZ HELP!!!!!how can 28/8 be a decimal? Holiday Company issued its 9%, 25-year mortgage bonds in the principal amount of $3,000,000 on January 2, 2006, at a discount of $150,000, which it proceeded to amortize by charges to expense over the life of the issue on a straight-line basis. The indenture securing the issue provided that the bonds could be called for redemption in total but not in part at any time before maturity at 104% of the principal amount, but it did not provide for any sinking fund. On December 18, 2020, the company issued its 11%, 20-year debenture bonds in the principal amount of $4,000,000 at 102, and the proceeds were used to redeem the 9%, 25-year mortgage bonds on January 2, 2021. The indenture securing the new issue did not provide for any sinking fund or for redemption before maturity. (a) Prepare journal entries to record the issuance of (1) the 11% bonds and (2) the redemption of the 9% bonds. (If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts. Credit account titles are automatically indented when amount is entered. Do not indent manually.) No. Date Account Titles and Explanation Debit Credit (1) December 18, 2020 (2) January 2, 2021 (b) Indicate the income statement treatment of the gain or loss from redemption. The _____ is reported as ______. Como se dice "the school's library *a)la libreria de la escuelab)la escula's revistac)la escuela's libreriad)la biblioteca de la escuela How does the dwarves' song shape Bilbo's character in Chapter 1 of The Hobbit?It convinces Bilbo to join the dwarves on their journey.It provides Bilbo with more information about his family.It entertains Bilbo, who is angry.It instills in Bilbo a desire for adventure. 10x-2x in fewer terms Questions in the photo. Please HELP! what is mensuration and use a diagram to explain What is one benefit to measuring your bodys flexibility? In the diagram shown to the rig m Write a program that reads a person's first and last names separated by a space, assuming the first and last names are both single words. Then the program outputs last name, comma, first name. End with newline. Example output if the input is: Maya Jones Jones, Maya A ball initially at rest is dropped from a window 24.3 m off the ground. How long does it take for the ball to reach the ground? 1. What is a technological system?*A.a system that takes an input, changes it according to the system's use, and thenproduces an output outputB.a system that takes an output, changes it according to the system's use, and thenproduces an inputC.a system that starts with a process, then output resources in the input Which percent does this shaded grid represent