Which best describes the structure of a DNA molecule?

Which Best Describes The Structure Of A DNA Molecule?

Answers

Answer 1

Answer:

A

Explanation:

the best choose is A..........

Answer 2

Answer:

A double helix

Explanation:

if some apeks users have the same answer choice as me


Related Questions

what is the difference between a medical biochemist and a biochemist​

Answers

Answer:

Explanations

Biochemistry is literally biological chemistry:the study of the chemical process within and relating to organisms. Biomedicine is medical biology:it really comes down to viewing biological sciences from a clinical perspective ... I hope this help u

match the function to the correct part of the neuron.

Answers

Kindly refer the attachment for labelling.

Answer:

A- Receives signal from other neurons

B- Contain the nucleus and cell organelles

C- Protects and insulates the axon

D- Conveys electric signal across a long distance

E- Passes electrical signals to other neurons

Explanation:

A. The "A" part in the image refers to "dendrites" which function to receive signal from other neurons.

B. The "B" part refers to "soma" which contain the nucleus and other cell organelles.

C. The "C" part refers to "Myelin sheath" that protects and insulates the axon.

D. The "D" part refers to "Axon" which is responsible for conveying electric signal across a long distance.

E. The "E" part refers to "Axon terminal" which is responsible for passing or transferring the elecrtic signals to other neurons and dendrites of other neurons receive the signals and the process goes on.

Hence, the match of fucntion with the correct part of neuron is as following:

A- Receives signal from other neurons

B- Contain the nucleus and cell organelles

C- Protects and insulates the axon

D- Conveys electric signal across a long distance

E- Passes electrical signals to other neurons

Answer:

see image below

Explanation:

What is the purpose of meiosis?

Answers

Answer:

Genetic variation by crossing over

Produce 4 daughter cells from single parent cell.

Explanation:

A. Mobbing is a behavior that a social group of birds uses to respond to a predator threat to the entire group.
B. Mobbing is a behavior that adult birds use to respond to a
predator threat to nestlings.
C. Mobbing is a behavior that immature birds use to respond to a predator threat to themselves.
D. Mobbing is a behavior that individual birds use to respond to a predator threat to themselves.

Answers

I think the answer is B!

Which of the following statements is true?

Evaporation happens equally around the world.
Condensation and infiltration drive the water cycle.
Evaporation happens more frequently over land than over water.
Precipitation is greater than evaporation over land.

Answers

Answer:

Precipitation is greater than evaporation over land.

Explanation:

On a global scale, precipitation is greater than evaporation from land while evaporation exceeds precipitation from ocean.

Ebola Eradication Strategy
* Required
Please type or paste your plan on how ebola could be contained or stopped
below
Plan: *
Your answer
This is a required question

7-10 sentence

Answers

plz answer my

Benidorm quiz  

1. Where is Benidorm holiday resort located?  

JORDAN  

 

2. What is the average temperature of Benidorm in summer?  

26 C  

3. Before 1950s Benidorm was a small ___FISHING______ village.  

4. Why did the town council encourage tourism in Benidorm?  

TO VISIT BENIDORM  

5. How many hotels were found in Benidorm in 1959?  

 

6. Explain package holidays as they were used in Benidorm                                                                                

7. Give three reasons why Benidorm is an excellent tourist resort  

(a)  

(b)  

©  

8. State four tourist attractions at Benidorm

1

2

3

A secondary consumer eats
plants
dead material
carnivores
organisms that eat producers

Answers

Answer:

Plants.

Explanation:

Secondary consumers are herbivores, so they eat plants.

Question 1 of 10
2 Points
Earlobes can be either attached or detached. The allele for attached earlobes
is recessive (e), and the allele for detached earlobes is dominant (E). What
must be true if a boy is born with attached earlobes?
A. He has a heterozygous genotype.
O B. He has no E alleles.
C. He has no recessive alleles.
O D. He has one of each allele,
SUBMIT

Answers

Answer:

B. He has no E alleles.

Explanation:

In order for the boy to have an attached earlobes phenotype, he must have no E alleles, because the E is dominant. So his genotype must be ee. If he has even just a single E allele (like Ee) he will have detached earlobes, because the dominant trait will mask the expression of the recessive trait.

Why not A or D: Heterozygous Ee (one of each allele) would result in detached earlobes.

Why not C: If he has no recessive alleles, EE, he would have detached earlobes.

If a boy is born with connected earlobes, he has no E alleles because the allele for detached earlobes is dominant (E), whereas the allele for attached earlobes is recessive (e). So, the correct option is B.

What is Dominant allele?

A dominant allele is one that will overpower a recessive allele's expression. Hence, only the trait linked to the dominant allele is manifested when a dominant allele and recessive allele coexist in the genotype of offspring. Consequently, for a recessive allele phenotype to manifest, both of the recessive allele must be present in the progeny.

A recessive allele causes connected earlobes (e) while the dominant earlobe detachment allele (E)

A child with the EE genotype would have disconnected earlobes.

As features of dominant alleles are manifested in heterozygous genotypes, offspring with the Ee genotype would also have disconnected earlobes. Only the child with the ee genotype would have connected earlobes. A homozygous recessive genotype is genotype ee.

Thus, the correct option is B.

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SCIENCE: Scurvy can be cured if we consume

1 point

cheese, egg yolk

Citrus fruits, tomatoes

nuts,legumes

fish,dark leafy vegetables


Answers

Answer:

The answer to this are Citrus fruits and tomatoes

Answer:

Citrus fruits, tomatoes

Explanation:

Scurvy is a condition caused by a severe lack of vitamin C in the diet.

Scurvy is easily treated by adding some vitamin C to your diet, such as fresh fruit and vegetables.

Trees with light brown bark dominate an ecosystem. The ecosystem has populations of insects that thrive on the tree bark. Over time, some insect species developed certain physical characteristics that helped them thrive on the tree bark. These physical characteristics also helped the insects defend themselves from predators. Which insect species is probably the species with the new physical characteristics?

Answers

I'm assuming this is referring to the Peppered Moth, a species of moth that adapted to the change of color on tree bark. The tree bark changed color as a result of local pollution. The moths (over the course of generations) changed color as well that better suited camouflage upon the new color of the tree bark.

Answer:

WELL, good thing I had this question and out of the four bugs I think it's the black bug with the pincers (stag beetle I think)

Explanation:

What is the basic unit of a nucleic acid and what is it made of? WILL MARK BRAINLIEST!

Answers

Nucleotides are organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). The building blocks of nucleic acids, nucleotides are composed of a nitrogenous base, a five-carbon sugar (ribose or deoxyribose), and at least one phosphate group.



NUCLEOTIDES!!! MADE OF ORGANIC MOLECULES!!!

Hopefully this helps! Good luck!

Will give BRAINLIEST How did the universe begin?

Answers

Answer:

According to big bang model, the universe was born during a period of inflation that began about 13.8 billions years ago.  Like a rapidly expanding balloon, it swelled from a size smaller than an electron to nearly its current size.

Initially the universe was permeated only by energy, some of the energy congealed into particles, which assembled into light atoms like hydrogen and helium.

At first the atoms turned into galaxies, then stars and then other elements were forged.

Explanation:

These are what happened when the universe was forming.

Hope it helps.

help
Distinguish between causal and correlational relationships, with specific examples of how the impacts of group behaviors illustrate these relationships
help me

Answers

Answer: The casual relation is a cause and effect relation whereas the correlation is when the two variables are related based on two or more parameters.

Explanation:

A casual relationship can occur in between the two events, the first occurs before the other. The first one is cause and the other one is effect. A correlation can be defined as the relation between the two variables. It does not imply causation. It can be defined as the causal relation between the two variable that are correlated.

Answer:

The difference between causal and correlational relationships is as following:

A correlational relationship is defined as a measure of relationship between two variables and the variables can be negatively correlated, positively corelated or not correlated at all.

Relation between two events said to be causal relation, if the occurrence of the first causes the other. It means the effect of second event should be caused by the the first event.

So, causal relationship between two variables must be correlated.

For example: there is a positive correlation between the organisational behaviour and work done. if any one employee will deny to work from the group of 4 employees it will affect other employees behaviour and reduces their working ability, which will reduce tehir work done. It means that organisational behaviour between employees is the cause of less work done. so, the second event (work done) is the cause of first event (organisational behaviour) and they both are positively correlated as well.

Lichens and mosses that first live in uninhabited areas are examples of ?

Answers

Answer:

primary successions! I hope this helps

Answer:

secondary

Explanation:

What are the functions of xylem

Answers

Answer:

Xylem provides mechanical support and storage.

Explanation:

Xylem is the specialised tissue of vascular plants that transports water and nutrients from the plant–soil interface to stems and leaves, and provides mechanical support and storage. The water‐conducting function of xylem is one of the major distinguishing features of vascular plants

Chemical mechanisms that can turn off or reduce an enzyme are _____.
a.) inhibitors
b.) activators
c.) centrioles
d.) vacuoles

Answers

Answer:

Explanation:

Chemical mechanisms that can turn off or reduce an enzyme are inhibitors. Explanation; -Enzyme inhibitors are molecules or compounds that bind to enzymes and result in a decrease in their activity. They can bind to an enzyme and stop a substrate from entering the enzyme's active site and/or prevent the enzyme from catalyzing a chemical reaction.

Answer:

Inhibitors

Explanation:

They inhibit enzymatic activity.

Electromagnetic radiation may be generated by? A) Neutrons moving with constant velocity B) Electrons moving with constant velocity C) Accelerating neutrons D) Accelerating electrons

Answers

Answer: A

Explanation: hope this is helpful :)

Each phospholipid is made up of:
O A. Two phosphate groups and two fatty acid chains.
O B. A phosphate group and a fatty acid chain.
O C. Two phosphate groups and one fatty acid chain
OD. A phosphate group and two fatty acid chains.

Answers

Possibility for this answer is B
The answer is D. A phospholipid is composed of one phosphate group and two fatty acid chains.

The image shown here contains a simplified drawing of a phospholipid, with the blue circle representing the phosphate group and the two yellow tails representing the fatty acid chains.

What are some benefits of meiosis? and mitosis?

Why does it make sense that our sex cells use meiosis?


How might mutations in dna affect an organism?

What do mutations cause?

What are everyday things that can cause mutations?

Answers

Answer:

It comes from the woman’s Fallopian tube after fertilization

Explanation:

After the sperm successfully reaches to the woman’s egg it goes to the Fallopian tube and so on

The what method can help resolve problems logically

Answers

the scientific method

what are two fuctional parts of a charged trna

Answers

Answer:

An amino acid and an anticodon

Answer:

An amino acid and an anticodon

Explanation:

The anti-codon region in tRNA recognizes the bases in mRNA and then decides whether the amino acid that it has is appropriate for that triplet or codon.

Punnett squares are grids that show:

A. the phenotypes of an offspring

B. All possible results of a genetic cross

C. Actual results of general crossing (mating)

Answers

C. Actual results of general crossing(mating)hope it helps

Define tissues, please fast

Answers

Body Tissues. Tissue is a group of cells that have similar structure and that function together as a unit.

In humans, the ability to produce the pigment melanin is dominant over the lack of that ability, a condition known as albinism. If an albino man and a woman who is heterozygous for this trait marry and have a child, how likely is their baby to be an albino?

Answers

50% is the probably

Chlorophyll is type of pigment and so is the melanin in your skin what is a pigment
1. Something that aids with photosynthesis
2. Something that help plants grow
3. a substance that contains color
4. Something that helps plants absorbs water​

Answers

Answer:

3. A substance that contains color.

Explanation:

That's the definition that applies to every form of the word.

Which is part of the nonspecific immune response?
O A. Fever
O B. B cells
O C. Lymphocytes
O D. Making antibodies

Answers

Answer:

A. Fever

Explanation:

Fever is part of the nonspecific immune response. Therefore option A is correct.

Fever serves as a defense mechanism against infections. When the body raises its temperature, it creates an environment that is less favorable for the growth and reproduction of many pathogens.

Higher temperatures can also enhance the activity of immune cells, such as white blood cells, allowing them to function more efficiently in fighting off the infection.

Fever is triggered by the release of certain chemicals, such as cytokines, by immune cells in response to the presence of pathogens.

These chemicals act on the hypothalamus in the brain, which regulates body temperature, causing it to increase.

Thus, fever is a physiological response of the body to infection or inflammation and is considered a part of the nonspecific immune response.

Know more about fever:

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The _______ nervous system is a part of the automatic system that conserves energy by returning the body to a normal activity level through a lowered heart rate blood pressure.

Answers

Answer:

The answer is parasympathetic.

Explanation:

The Parasympathetic Nervous System is one of the two divisions of the autonomic system, which is the system that regulates all our bodily functions, like heart rate and peristalsis.

Hope this helps :)

after several cycles of cell division, a fertilized cell develops into a hollow ball of cells called a

Answers

After several cycles of cell division, a fertilized cell develops into a hollow ball of cells called the blastula.

The Central Dogma of Biology states that:

"I am the Dog Mother of Biology!!!!"


DNA is translated into RNA and RNA is transcribed into proteins


RNA is transcribed into DNA and DNA is translated into proteins


DNA is transcribed into RNA and RNA is translated into proteins.

Answers

Answer:

DNA is transcribed into RNA and RNA is translated into proteins.

Explanation:

The central dogma of biology explains how gene is expressed in living organisms. Genes are segments of DNA that encodes or carry information for useful products called PROTEIN. However, these genes needs to be expressed. Gene expression occurs in two stages viz: transcription and translation.

Transcription is the first process of gene expression involving the synthesis of a RNA molecule from the gene-containing DNA molecule i.e. DNA is transcribed into RNA.

Translation is the second process of gene expression that involves the synthesis of an amino acid sequence from the information contained in the RNA transcript. These amino acid sequence forms the PROTEIN. Hence, RNA is translated into protein, which is responsible for certain phenotypes.

Replication happens before a cell divides (Mitosis). So, like Mitosis, how many DNA are there after Replication is over? please help me

Answers

Answer:

ive done science already and i think its 2 if im wrong im sorry

Other Questions
Print Job Cost Calculator (10 points) Filename: PrintJobCost.java Write a program that asks the user to enter a string that encodes a print job. The string has this format: "Papersize ColorType Count" PaperSize, colorType and count are separated by exactly one space. The first part of the string represents the size of the paper used: Paper Size (string) Cost per Sheet ($) "Letter" 0.05The second part of the string represents the color of the printing. This cost is added to the cost of the paper itself Printing Type (string) Cost per Sheet($) "Grayscale" 0.01 "Colored" 0.10 The program computes and prints the total cost of the current printing job to two decimal places to the right of the decimal point. Note: You may assume that all function arguments will be valid (e.g., no negative values, invalid paper sizes, etc.) Several example runs are given below. t Enter print job info: Legal Grayscale 44 Print job cost: $3.08 C Enter print job info: A4 Colored 4 Print job cost: $0.62 t Enter print job info: Letter Grayscale 32 Print job cost: $1.9 Combine like terms in the expression -5x + 2y + 5x 8y.A. 10x 6yB. -10x + 6yo c." byD. -10% 10y Darcy looks up to the supermodels she sees in her favorite magazines. She dreams of the day that she can be as thin and happy-looking as themodels are. Darcy begins extreme dieting and falls into a habit of perfectionism. What could be an explanation of her habits?0 .Darcy is under the influence of the media's unrealistic beauty standards.B. Darcy is trying to get healthy and eliminate junk food from her life.C. Darcy is dreaming about becoming a model for her favorite magazine.D. 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