Which of the following best describes the components of the DNA twisted ladder?

A. The sides are made of alternating polypeptide chains, and the rungs are made of amino acid segments joined by
hydrogen bonds

B. The sides are made of alternating amino acids, and the rungs are made of polypeptide chains joined by hydrogen bonds.

C. The sides are made of alternating phosphate-sugar groups, and the rungs are made of complementary nitrogenous
bases joined by hydrogen bonds

D.The sides are made of alternating nitrogenous bases, and the rungs are made of phosphate-sugar groups joined by hydrogen bonds

Answers

Answer 1

The sides are made of alternating phosphate-sugar groups, and the rungs

are made of complementary nitrogenous bases joined by hydrogen bonds

DNA which is also called Deoxyribonucleic acid contains genetic information

which are passed from the parent to offspring. DNA is made up of an

alternating phosphate-sugar group in which the sugar is deoxyribose.

The alternating phosphate-sugar group are located at the side of the ladder.

The rungs are made up of complementary nitrogenous bases joined by

hydrogen bonds. Example of nitrogenous bases include adenine, thymine,

guanine and cytosine.

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Related Questions

How does a push or pull affect motion?

Answers

Answer:

A push makes something go forward in contrast to your position. A pull makes something go backwards in contrast to your position

Explanation:

The preganglionic fibers of the sympathetic nervous division originate in segments ____ of the spinal cord and first enter the ____ ganglia.

Answers

Answer:

T1 to L2 ; Sympathetic Chain

describe two ways that you could determine the volume of a pair of dice

Answers

Answer:

The volume of a pair of dice could be gotten by measuring the

sides and calculating it via length/width/height. A second manner

would be displacement, where the dice are placed in a liquid with a

known density, and the mass of the liquid displaced is used to

determine volume.

which body systems work together to provide oxygen to all cells within a human organism?

Answers

Answer:

Explanation:

For example, the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce.

Answer:

The respiratory and circulatory

Explanation:

The respiratory system allows for someone to breath and The circulatory system picks up oxygen in the lungs and drops it off in the tissues, then performs the reverse service for carbon dioxide.

The primary form of reproduction in bacteria is ____________ .Structures called ____________ assist bacteria with genetic exchange.Stressful environments cause many bacteria to produce ____________ to survive harmful conditions.Many bacteria exchange genetic material through a mating process called ____________ .A process known as ____________ involves viruses as a means of bacterial DNA exchange.

Answers

Answer:

1 binary fission

2) pili

3) Spores

4) Conjugation

5)Transduction

Explanation:

in the induced fit model, when a reactant temporarily binds to the active site of an enzyme, the enzyme __________.

Answers

Answer:

breaks down the reactant

Explanation:

Which of the following describes a process of succession after a forest fire?
A. Small plants and trees grow back at the same time.
B. Two types of plants grow side by side.
C. Small plants grow but are eventually replaced by larger plants.
D. Animals and plants both grow in the area.
SUBMIT

Answers

Answer:

D if I'm D correct, or A maybe C, mostly D.

Answer:

C. Small plants grow but are eventually replaced by larger plants

Explanation:

What are some ways that the biosphere interacts with the other three systems?

Answers

Answer:

Plants (biosphere) draw water (hydrosphere) and nutrients from the soil (geosphere) and release water vapor into the atmosphere. Humans (biosphere) use farm machinery (manufactured from geosphere materials) to plow the fields, and the atmosphere brings precipitation (hydrosphere) to water the plants.

Explanation:

Answer :Full Answer. A classic example of an interaction between spheres is when a plant (part of the biosphere), takes carbon dioxide from the atmosphere and water (the hydrosphere) through its roots from underground (geosphere) to perform photosynthesis, which provides the plant with food and releases oxygen into the atmosphere.

Explanation:pls give me a branlist

Although both eukaryotes and prokaryotes are capable of causing infectious diseases in humans, eukaryotes are unique because they have a/an:

Answers

Answer:

organized nucleus

Explanation:

what is photosynthesis?​

Answers

Photosynthesis is the process by which plants generate simple carbohydrates. This process used the energy from the sun.

Photosynthetic reactions:Photosynthesis refers to the metabolic process by which plants and algae use the energy from the sun and carbon dioxide to generate simple carbohydrates and oxygen.

Photosynthetic reactions can be divided into light-dependent reactions and light-independent reactions.

The light-independent reactions (also called the Calvin cycle) generate simple carbohydrates such as glucose.

In conclusion, in photosynthetic reactions, plants turn carbon dioxide (CO2) and water (H2O) into simple carbohydrates by using the energy from the sun.

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many protists are single-celled organisms. which other characteristic is common to organisms in kingdom protista?

Answers

They are neither plants nor animals. They fall in the dustbin kingdom.

A process that release every from food molecules is

Answers

Answer:

Cellular respiration

Cellular respiration releases energy by breaking down glucose and other food molecules in the presence of oxygen.

Why do cells go through division?
A. Repair
B. Reproduction
C. Growth
D. All of these are correct

Answers

Answer:

The answer should be D because all of these are the reasons.

I would say the answer is A and D and not B as cell division is the process of when the cell grows in the interphase, the nucleus go to opposite side of the cell and then they split pls make me brainliest if ur reading yhis :)

What is necessary for the process of active transport to occur

Answers

Answer:

THE use of energy (usually in the form of ATP) is necessary for the process of active transport to occur.

Energy in form of ATP is necessary for the process of active transport to occur.

WHAT IS ACTIVE TRANSPORT:Active transport is the type of transport that involves the movement of molecules with the aid of energy (ATP).

Active transport uses energy to move molecules against a concentration gradient unlike passive transport.

Therefore, this means that energy in form of ATP is necessary for the process of active transport to occur.

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what are the two primary types of water pollution that have to do with where the pollution came from
Point source and non point source
Physical and liquid
Groundwater and surface water
Chemical and biological

Answers

Answer:

Groundwater and surface water .

Explanation:

Note:- If you have more questions then let me know !!

Why is ATP known as the energy currency?
5 line answer plz

Answers

Answer:

ATP is commonly referred to as the "energy currency" of the cell, as it provides readily releasable energy in the bond between the second and third phosphate groups. ... As a result, cells within the human body depend upon the hydrolysis of 100 to 150 moles of ATP per day to ensure proper functioning.In addition to providing energy, the breakdown of ATP through hydrolysis serves a broad range of cell functions, including signaling and DNA/RNA synthesis. ATP synthesis utilizes energy obtained from multiple catabolic mechanisms, including cellular respiration, beta-oxidation, and ketosis.                

  Explanation: is this good enough?

Answer:

Because its a sequence in which molecules can store their own energy and use it when needed such as in a chemical reaction , note that this is the main reason some molecules stay dormant during a chemical reaction and that is because they didn't use ATP

Explanation:

The principal molecule for storing and transferring energy in cells. It is often referred to as the energy currency of the cell and can be compared to storing money in a bank. ... AMP can then be recycled into ADP or ATP by forming new phosphoanhydride bonds to store energy once again. (This Is A Web Response) but feel free to use mine if it helps its a more simpler term.

which zone in the ocean contains enough light for photosynthesis?

Answers

Answer:

The euphotic zone

The euphotic zone is the layer closer to the surface that receives enough light for photosynthesis to occur.

History of the 1918 flu pandemic In 7 Minutes Compare (how is it similar to covd?) and Contrast (how is different from covd?).​

Answers

Answer:

anwser in explanation

Explanation:

It is similar to covd because of the masks and because of the deaths and the quarantine

How does a plants structure contribute to its ability to perform photosynthesis

Answers

Answer: 1. Leaves have a large surface area; this allows them to absorb more sunlight. They are also thin, meaning that carbon dioxide has a shorter way to travel.

                2. stomata allow the entrance of carbon dioxide. The more complex adaptations are of the internal leaf structure.

Can you use cheetahs to represent Photosynthesis or Cellular Respiration?

Answers

Cellular Respiration

Which of the following is an example of an adaption?

A: Wolves work together to catch prey
B: A dog walks without pulling on its leash
C: Ducks swim near the shore by a picnic area, where food is always available
D: Birds living near a highway learn not to fly away every time a car passes

Answers

Answer:

D

They are adapting to their environment to increase chances of survival.

If you start off with 12 strands of chromatin how many strand of chromatin do you need to end up with in each cell after meiosis

Answers

Answer:

3

Explanation:

If you start off with 12 strands of chromatin how many strand of chromatin do you need to end up with in each cell after meiosis after 3 stages.

What is meiosis?

In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm).

Body (or somatic) cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent). The egg and sperm that combine during fertilization must be haploid, or having only one pair of chromosomes, in order to sustain this state.

Each diploid cell divides twice during meiosis to produce four haploid daughter cells, which are the gametes.

Nearly every human cell contains 46 chromosomes, 23 of which come from one of our parents and 23 highly similar chromosomes from the other parent. The appropriate number of chromosomes in a cell is crucial.

Therefore, If you start off with 12 strands of chromatin how many strand of chromatin do you need to end up with in each cell after meiosis after 3 stages.

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The single stream recycling program that they partner with makes it convenient to
homeowners since they can put all of their recycling in one bin, what is the major drawback
to this type of recycling?
a. It is inconvenient for homeowners
b. It reduces how much stuff can be recycled
C. It is cost effective
d. It has to be sorted and contamination is higher

Answers

Answer:

Putting items in the recycling bin that can’t be recycled can contaminate the recycling stream. After these unrecyclable items arrive at recycling centers, they can cause costly damage to the equipment. Additionally, after arriving at recycling centers, they must be sorted out and then sent to landfills, which raises costs for the facility.

Explanation: d

Which process is absent in animal cells?


making proteins

chemical reactions

respiration

photosynthesis

Answers

Answer:

photosynthesis

Photosynthesis animal cells does not use a photosynthesis ☺️.

Which THREE statements describe how the models of mitosis and meiosis demonstrate genetic continuity?


Chromosomes are divided up evenly during Anaphase (Anaphase I of meiosis), ensuring that the daughter cells will have the correct number to reproduce.


In Interphase the chromosomes have duplicated, indicating that there will be enough genetic material to separate into daughter cells capable of reproduction.


In Prophase (Prophase I and II of meiosis) the spindles form, indicating that the chromosomes will be split evenly, and the daughter cells will receive the appropriate amount of genetic material.


In Metaphase (Metaphase II of meiosis) the chromosomes are lined up properly, indicating that the chromatids will separate evenly and provide the daughter cells with equal amounts of genetic material.


In Telophase (Telophase II of meiosis) the amount of chromatin present is equal to the amount present during Interphase, indicating that the daughter cells will receive the same amount of genetic material as the parent cell.

Answers

Answers: A,B,D

Explanation: :I took the test and got this question right .

The three statements that describes how the models of mitosis and meiosis demonstrate genetic continuity are listed and explain below.

In Anaphase, chromosomes line up in the middle of the cell while the spindle fibres pulls them apart.

Therefore the statement below about anaphase is correct.

Chromosomes are divided up evenly during Anaphase (Anaphase I of meiosis), ensuring that the daughter cells will have the correct number to reproduce.

In interphase, the synthesis of DNA occurs where the chromosomes replicates forming two identical copies of DNA.

That is, the cell now has 92 chromosomes which is enough DNA for two cells.

Therefore the statement below about interphase is correct.

In Interphase the chromosomes have duplicated, indicating that there will be enough genetic material to separate into daughter cells capable of reproduction.

In the prophase, the mitotic apparatus appears; this consists of two centrioles separated by the mitotic spindle which is formed from microtubules.

The formation of these mitotic spindle fibres indicates that the chromosomes will be split evenly.

Therefore the statement below about prophase is correct.

In Prophase (Prophase I and II of meiosis) the spindles form, indicating that the chromosomes will be split evenly, and the daughter cells will receive the appropriate amount of genetic material.

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Which characteristic of living organisms is similar to burning fuel in a car engine

Answers

Answer:

im sorry but there isnt engough information for me to answer this properly

Chemical energy, or in other words using an energy source to fuel us. Cars have gas, that’s what makes them “go”. We eat food, this is what makes us “go”.

After a nuclear disruption in Siberia during the winter, scientists found evidence that the DNA in cells of local wildlife newboms had several mutations. Which of
the following is a valid claim that can be made about how the nuclear disruption led to mutations?
A High temperatures during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns
mutations in newborns
B. High temperatures during the disruption caused damage to parental somatic cells resulting.
C Exposure to radiation during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns.

D. Exposure to radiation during the disruption caused damage to parental somatic cells resulting in mutations in newborns.


Answers

Answer:

The correct answer is choice (B) the

production of proteins. Choice (A)

is incorrect because mitochondria

produce energy for the cell. Choice (C)

is incorrect because the cell membrane

controls the removal of substances

from a cell. Choice (D) is incorrect

because lysosomes break down

chemicals.

Explanation:

C. Exposure to radiation during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns is a valid claim that can be made about how the nuclear disruption led to mutations.

What is damaged by radiation while mutations in DNA?

Radiation can cause mutations in DNA by damaging the genetic material, and these mutations can be passed on to offspring through the parent's gametes.

This is because radiation can cause mutations in DNA by breaking the chemical bonds that hold it together or by causing other types of damage that alter the sequence of nucleotides. Since gametes are the cells that are involved in reproduction and pass on genetic material to offspring, mutations in gametes can be passed down to future generations.

Somatic cells, on the other hand, are the cells that make up the body of an organism but are not involved in reproduction. Mutations in somatic cells can lead to health problems for the individual but are not passed down to offspring.

Therefore, in this scenario, exposure to radiation during the nuclear disruption likely caused mutations in the gametes of the local wildlife, which were then passed down to their offspring resulting in genetic mutations in newborns.

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Please help!! Multiple choice.

Answers

Answer:

Okazki fragments are pieces that are replicated on the discontinuous strand.

For the question we've all been waiting for: Did the chicken or the egg come first?

Answers

Answer:

had to have been something mutated into a chicken right?

Why is the sky blue according to Science.

Answers

Answer: The sky is blue due to a phenomenon called Raleigh scattering.

Explanation:

Answer: Raleigh scattering is the scattering of electromagnetic radiation by particles with smaller wavelengths. Shorter wavelenght waves are blue-hue.

Explanation:

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