Erwin Chargaff's work on the composition of nucleic acids began in 1944. His findings, which later became known as Chargaff's rules, detail the specific pairings that occur in double-stranded DNA molecules.

According to one of Chargaff's rules, a section of DNA molecule that contains 50 base pairs and has 15 adenine bases must also contain -

A. 15 guanine bases

B. 15 cytosine bases

C. 15 thymine bases

D. 15 uracil bases

Answers

Answer 1

Answer:

C: 15 thyme based

Explanation:

DNA molecule

A=T

Answer 2

Chargaff's rule of base pairing is an important rule for DNA nucleotide sequencing and is crucial in genetics. He gave the most important rules in his findings of the nucleotide base pairing.

DNA molecule that contains 50 base pairs and has 15 adenine bases must also contain option C. 15 thymine bases.

The bases can be explained as:

According to Chargaff, bases containing purine and pyrimidine should be in 1:1 proportionate universally.

The number of purine adenine would be equal to pyrimidine thymine and purine guanine would be equal to pyrimidine cytosine in a DNA sequence.

Therefore, 15 adenine will base pair with 15 thymine bases.

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Related Questions

What could be a potential consequence of an organism failing to maintain homeostasis?
A. A lack of internal balance
B. The eventual death of the organism
c. Difficulty in carrying on metabolism
D. All of the above

Answers

It would be A
You welcome

Answer:

A

Explanation:

PLs I NEED HELP RN I GIVE U 100 PINTS ITS RLY URGENTT Objectives:

In the lesson, you will:


know the function of major organelles in plant and animal cells

compare and contrast the structure and function of major organelles of plant and animal cells

relate structure to function for the components of plants and animal cells


Big Ideas:

Key Questions and Terms Notes

What are the two main types of cells? What is the difference between these cells?

Use the video to describe the function of each of the following cell structures:

Cytoplasm:

Nucleus:

Mitochondria:

Endoplasmic reticulum:

Ribosomes:

Golgi apparatus:

Vesicles:

Lysosomes:

Cell membrane:


What are organelles?

How are the functions of organelles in animal cells and those in plant cells similar and different?

Draw and label an animal cell.











Draw and label a plant cell.




I WILL REPORT IF U JUST DO IT FOR POINTS AND U JUST PUT NONSENSE

Answers

Answer:

1. The two main cell types are prokaryotic and eukaryotic. Prokaryotic cells lack a nucleus and other membrane-bound organelles.

2. Cytoplasm: Cytoplasm contains enzymes that break down waste. It also provides shape to the cell. Cytoplasm enables organelles to remain where they are.

Nucleus: The nucleus controls activity inside the cell. It also carries genes.

Mitochondria: Mitochondria generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate.

Endoplasmic reticulum: The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function.

Ribosomes: The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make proteins.

Golgi apparatus: A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.

Vesicles: Transport vesicles help move materials, such as proteins and other molecules, from one part of a cell to another.

Lysosomes: A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.

Cell membrane: The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

3. An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.

4. Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. These structures include: chloroplasts, the cell wall, and vacuoles.

Explanation:

You will have to draw and label your own cells, but I hope this helps!

Answer:

1. The two main cell types are prokaryotic and eukaryotic. Prokaryotic cells lack a nucleus and other membrane-bound organelles.

2. Cytoplasm: Cytoplasm contains enzymes that break down waste. It also provides shape to the cell. Cytoplasm enables organelles to remain where they are.

Nucleus: The nucleus controls activity inside the cell. It also carries genes.

Mitochondria: Mitochondria generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate.

Endoplasmic reticulum: The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function.

Ribosomes: The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make proteins.

Golgi apparatus: A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.

Vesicles: Transport vesicles help move materials, such as proteins and other molecules, from one part of a cell to another.

Lysosomes: A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.

Cell membrane: The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

3. An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.

4. Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. These structures include: chloroplasts, the cell wall, and vacuoles.

Explanation:

What is produced by translation?
A. An amino acid
B. A strand of mRNA
C. A protein
O D. A strand of DNA

Answers

Answer:

c) A protein

Explanation:

The molecule that results from translation is protein -- or more precisely, translation produces short sequences of amino acids called peptides that get stitched together and become proteins. During translation, little protein factories called ribosomes read the messenger RNA sequences

A protein

What is translation ?

Translation is the process of translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis.

What is produced by translation?

In translation, messenger RNA (mRNA) is decoded in a ribosome, outside the nucleus, to produce a specific amino acid chain, or polypeptide. The polypeptide later folds into an active protein and performs its functions in the cell.

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what is the difference between evolution and natural selection?
You will need two answers One that you can find online and one that is a personal answer.

Answers

Answer:

2 answers

Explanation:

-Evolution is a gradual change in the inherited traits of a population over many generations. Natural selection is a mechanism where the members of a population best suited to their environment have the best chance of surviving to pass on their genes.

- Evolution is the precessions by which population changed over time whereas natural selection is the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do

Difference between mixture and compound​

Please help

Answers

Answer:

mixture is a combination of two or more elements

and compound is a substance that is made up more than one type of atom bounded together

Answer:

Compound are substance which can be formed by chemically combining two or more element.

Mixture are the substance that are formed by physically mixing two or more substance.

Compound is always homogenous in nature.

Mixture can be homogenous or heterogeneous.

Compound they show their own characteristics.

Mixture they don't show their own characteristics

May this help you

Sperm are produced in the glands sperm duct. testes. urinary bladder.

Answers

The testes. A pair of male reproductive glands called the testes can be found in the scrotum, which is a sac-like structure that is found on the exterior of the body.

Sperm and the male hormone testosterone are both produced in the testes, which are responsible for the function of the testes. When the sperm have been created, they pass via a number of ducts, such as the vas deferens, the epididymis, and the ejaculatory ducts, before being expelled from the male organ during the process of ejaculation. On the other hand, the urine bladder is a component of the urinary system, but it does not contribute in any way to the creation of sperm.

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need help ASAP!!

state your claim. make sure claim fully explains how farming on land can contribute to algal blooms in the ocean.

[will give brainiliest:)]​

Answers

Higher amounts of nitrogenous compounds will increase algal blooms, leading to less available oxygen in the water, and decrease biodiversity. -------- Let's take a look at each option and consider them in light of our knowledge. 1. These compounds will combine into larger molecules as they interact in the nitrogen cycle and become food for fish and other animals, increasing biodiversity. * This has some problems. Yes, the fertilizers will cause an increase in the food supply, but that doesn't spontaneously cause an increase in biodiversity. The only way to increase the biodiversity is to introduce new organisms. And this isn't such a mechanism. I won't pick this choice. 2. The water cycle will remove excess fertilizer naturally through evaporation, with no impact on biodiversity. * There's some issues here as well. Think about how much fertilizer runoff is considered a pollution issue. If this option were true, then we wouldn't be seeing so many news articles complaining about fertilizer running causing pollution problems. So this answer isn't any good either. 3. Nitrogenous compounds will be recycled into carbon compounds to create new organisms and increase biodiversity. * Still running into the "spontaneous increase in biodiversity" issue here. How would more carbon compounds suddenly increase the biodiversity? This answer isn't any good either. 4. Higher amounts of nitrogenous compounds will increase algal blooms, leading to less available oxygen in the water, and decrease biodiversity. * This is a real problem. Some might think that "Algae is a plant. Plants produce oxygen. Why would more algae cause the oxygen supply to decrease?" Well, the answer is pretty simple. Individual algae cells don't live very long. So you have a log of algae being produced. Releasing oxygen to the air, and then dying. And the dead algae then proceeds to decay, which does consume dissolved oxygen in the water. Which does cause the death of fish and other animals that are dependent upon that dissolved oxygen. And that does reduce the biodiversity in the area. So this is a reasonable and correct answer.

Answer:

A increase in nutrients can trigger algae blooms.

What is the phenotype of an individual?
A. The genetic makeup
B. Dominant alleles
C. Recessive alleles
D. The physical appearance

Answers

Answer:

D. The physical appearance

Explanation:

Genotype is the genetic makeup and alleles while phenotype is the physical appearance.

The most likely answer is D the physical appearance
Because phenotype is the observable characteristics of an organism.

How do other organisms benefit from other biotic and abiotic things in tropical rainforest?

Answers

Answer:

All of the biotic factors are dependent upon the abiotic factors. ... Water, sunlight, air, and the soil (abiotic factors) create the conditions that allow rain forest vegetation (biotic factors) to live and grow. Organisms like monkeys, bats, and toucans eat the vegetation supported by the abiotic factors.

Explanation:

Biotic things are stuff like sunlight, air, dirt, etc. Plants and animals are abiotic. Abiotics benefit from biotics because they use the air, light, and dirt to function in everyday life.

Daughter cells formed by mitosis have exact copies of the parent cell's DNA. What process ensures that is possible?

Answers

so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set

Daughter cells formed by mitosis have exact copies of the parent cell's DNA. The anaphase process ensures that is possible.

What is mitosis?

Cell division occurs during mitosis. All eukaryotic cells go through the process. There are four stages to the process. The cell divides during the procedure. A daughter cell that is identical to the parent cell is created.

Prophase: This is mitosis's initial phase. At this point, the chromosomes begin to compress and the cell begins to break.

This is the second phase, or metaphase. The chromosomes align in the spindle fiber during this stage, and a checkpoint is also established.

Anaphase: At this time, the sister chromatids separate, align, and the chromosomes divide.

The final phase is known as the telophase. The nuclear membrane developed as the nucleus closed.

Therefore, the process that ensures the daughter cells formed by mitosis have exact copies of the parent cell is the anaphase.

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Which of the following is not a characteristic of life?

Answers

The ability to move is not a characteristic of life

Hope this helps! :)

What is it called when scientists carefully examine a new result by someone else in their field of study?

Answers

Answer:

a peer review

Explanation:

Answer: Peer review.

Explanation: Peer review is the evaluation of work, idea or research via close examination of others that are expert in that field or that are in same competence.

I need this answers A,B,C,D

Answers

C

Intrinsic proteins in the bilayer allow large, non polar molecules through

I need help it's due today and i don't know which one it is

Answers

Answer:

I believe the answers are aa, 75%, 25%, 50%, and 25%

What is the Theory of Evolution?

Answers

Charles Darwin is the father of evolution.

His research stated that species originate from one common ancestor.Species change over time

         - Adaptation  

"Survival of the fittest"


Each Codon in mRNA matches up with a specific.....
O amino acid
O protein
nucleotide
O lipid
Previous

Answers

Answer:

O amino acid

Explanation:

tRNAs bring their amino acids to the mRNA in a specific order. This order is determined by the attraction between a codon, a sequence of three nucleotides on the mRNA, and a complementary nucleotide triplet on the tRNA called an anticodon. This anticodon also specifies the particular amino acid that the tRNA carries.

6. A sound wave has a frequency of 20 Hz and a wavelength of 100m. What is the wave speed?

O 2000 m/s
100 m/s
050 m/s
0.20 m/s

Answers

Answer:

eqn: speed = wavelength * frequency

What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.30 m?

speed = 0.3*100 = 30m/s

What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 0.10 m?

speed = 0.1*50 = 5m/s

What is the frequency of a wave that has a wave speed of 20 m/s and a wavelength of 0.50 m?

frequency = 20/0,5 = 40Hz

What is the frequency of a wave that has a wave speed of 80 m/s and a wavelength of 0.20 m?

frequency = 80/0.2 = 400Hz

What is the frequency of a wave that has a wave speed of 120 m/s and a wavelength of 0.40 m?

frequency = 120/0.4 = 300Hz

What is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 440 Hz?

wavelength = 340/440 = 0.7727m

What is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 880 Hz?

wavelength = 340/880 = 0.3864m

What is the wavelength of a sound wave that has a speed of 250 m/s and a frequency of 400 Hz?

wavelength = 250/400 = 0.625m

What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 2.0 m?

speed = 2*50 = 100m/s

What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.50 m?

speed = 0.5*100 = 50m/s

Explanation:

What two levels of classifying system is part of the scientific name?

Answers

Answer:

The genus and species are the final 2 classification that determine a scientific name for an organism

Explanation:

hope this helps. please give a rating

Give me a example of a vegan dinner and a vegan snack


And benefits of the vegan diet and negative aspects of the vegan diet

and do doctors recommended this diet

and statistics of the vegan diet

Answers

Answer:

a vegan dinner could be a meat free burger with vegan cheese and fries with a side of salad. a snack could be hummus with sliced veggies. a benefit of the vegan diet is reduced risk of high blood pressure and reduced risk of illnesses related to meat-based diets such as cardiovascular disease (if you eat healthily, unhealthy vegan meals are becoming more common.) a risk is that yiu need to keep a close eye on your diet. removing all animal products means you risk not getting enough nutrients from things you would normally eat and need to research lots of supplements. as foods such as tofu are becoming more popular, veganism is becoming less benefitial for the enviroment. forests are cleared to make way for tofu and meat substitute plantations. after humdreds of years, some animals need human interference. if we stop removing honey from domesticated bees hives, they will be unable to survive. if we juat didnt interfere from the start they would not need it, but back then we had no choice.

Answer:

sorry this is late (count that this is todays standards of food's and alot of this vegan meat stuff is out now)

Vegan dinner:

impossible burger with french fries

Vegan snack:

chex mix, any kind of chips besides ranch ones (or special vegan ranch ones)

Not many doctors recomend this diet, a lot of them push away from it, only because it prevents the person from getting healthy again and keeps them on medication, which brings more money into the feild.

There was a study called "The China Study" It was done in china and they found amazing results, finding that the people who ate soley rice and grains had 50% lower heart disease risk than others. Today, we can find many sources that lead to a 4% chance of getting heart disease one  a vegan diet.  

A good place to find a good doctor talking about this diet, and even saved his grandmother and made 2 books "how not to die" and "how to survive a pandemic" dr michael greger MD

https://nutritionfacts.org

point
Look at the materials shown below.

Plant
Gold
Silver
Water

Which of these materials are minerals?
а silver and water
B silver and gold
C plant and gold
D plant and water

Answers

Answer:

Silver and gold

state birth control methods according to Islam view?​

Answers

Answer:

Barrier methods. Examples include male and female condoms, as well as the diaphragm, cervical cap and contraceptive sponge.

Short-acting hormonal methods. ...

Long-acting hormonal methods. ...

Sterilization. ...

Fertility awareness methods.

all you need is in the photo

ASAP​

Answers

Answer:

the answer is b condensation

Q1 is the answer is condomsation

what is the mami función of Stitch in plants​

Answers

i have no ideaaaaaaaa

Need help ASAP please and thanks

Answers

Answer:

The answer is G

Explain how meiosis results in four haploid daughter cells.

Please help this is due today and I really need help

Answers

Answer:

phones

Explanation:

help pls :3

Is the energy transferred to each organism in this food web the same? explain your answer.​

Answers

Answer:

Is the energy transferred to each organism in this food web the same? Yes

b Suggest why they
Explain why species need scientific names.
11​

Answers

Answer:

Scientific names are used to describe various species of organisms in a way that is universal so that scientists around the globe can readily identify the same animal. This is called binomial nomenclature, and many of the scientific names are derived from the Latin name of the organism.

Do organisms "decide" to adapt?

A. Yes, they can force mutations in one lifetime

B. No, they adapt by random mutations during their lifetime

C. No, they can't adapt. They either have adaptations or they don't

Answers

Answer:

A i think

Explanation:

Natural selection involves organisms trying to adapt. Natural selection gives organisms what they need. Humans can't negatively impact ecosystems, because species will just evolve what they need to survive. ... All traits of organisms are adaptations.

Answer:

Natural selection involves organisms trying to adapt. Natural selection gives organisms what they need. Humans can't negatively impact ecosystems, because species will just evolve what they need to survive. All traits of organisms are adaptations. So, the answer would be A!

Evolution is any change in the heritable traits within a
A. generation
B. population
C. individual

Answers

Answer:

B. population

Explanation:

CORRECT

Evolution is any change in the heritable traits within a population. Therefore, option (B) is correct.

What is evolution?

Evolution is the process by which populations of organisms change over time through the gradual accumulation of genetic variations. It is the central concept of modern biology and provides a framework for understanding the diversity of life on Earth.

Evolution occurs through the mechanisms of natural selection, genetic drift, gene flow, and mutation. Over time, genetic variations that confer a survival advantage in a particular environment become more common in a population, while those that are detrimental or neutral are selected against.

This process can lead to the emergence of new species, as well as the extinction of others. The study of evolution has practical applications in fields such as medicine, agriculture, and conservation, and helps us understand our place in the natural world.

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Which of the following traits can NOT be inherited? Question 1 options: Eye Color Hair Color Scars Dimples PLZ HELP

Answers

Answer:

scars are not inherited

Explanation:

The scars should not be inherited.

What is the meaning of inherited?

It is known as genetic disorder. This should be passed from the parent to the child also if there is any change to the DNA so it also be passed. The color of eye, the color of hair, the dimples should be passed from the parent to the child but the scars should not be passed out

Therefore, the third option is correct.

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