Dna strands are called antiparallel because of _______________.
Answers
DNA strands are called antiparallel because they are oriented in opposite directions. DNA, which stands for deoxyribonucleic acid, is a double-stranded molecule consisting of nucleotide monomers.
The DNA strands are complementary and run in opposite directions, which is known as antiparallel, as a result of the arrangement of these nucleotides. The phosphate group of one nucleotide is linked to the 3′ carbon of the sugar of the next nucleotide by a covalent bond in the backbone of the DNA chain.
The resulting phosphate-sugar bond creates a sugar-phosphate backbone that runs in opposite directions, forming an antiparallel structure. The base pairs in the DNA molecule run in opposite directions, with one strand running from the 5′ end to the 3′ end, while the other runs in the opposite direction from the 3′ end to the 5′ end. As a result, the two strands run in opposite directions. In a DNA double helix, the two strands are complementary, with adenine always pairing with thymine and guanine always pairing with cytosine. Because of this, DNA replication is semi-conservative, with each newly synthesized DNA molecule consisting of one old and one new strand.
To know more about antiparallel visit:
https://brainly.com/question/30217797
#SPJ11
Related Questions
Which of the following is NOT impacted due to mutations outside the coding sequence?
A. Beta-globin gene
B. Promoter or enhancer
C. Sequence Termination signals
D. Ribosome binding sites
Answers
Noncoding sequences do not code for amino acids and proteins. The Beta-globin gene is not impacted by the mutations in the non-coding sequence. Thus, option A is correct.
What are non-coding sequences?
Non-coding sequences or regions are the components of the organisms' genetic material that does not encode proteins. They are referred to as introns and lacks the production of amino acid.
The promoter or enhancer, Sequence Termination signals, and Ribosome binding sites are the non-coding sequences involved in gene regulation. The Beta-globin gene is coded by the coding sequence or the exons.
Therefore, the Beta-globin gene is not impacted by the mutation in the non-coding region.
Learn more about non-coding sequences here:
https://brainly.com/question/13810178
#SPJ1
Cladograms are scientific hypotheses that can be overturned by new data. True False Angiosperm plants did not appear until after the extinction of the dinosaurs. True False The definition of an analogous character is "a character that has a similar function to a character in a different organism, but these similarities are due to different evolutionary origins". True False In evolution, non-genetic changes that occur during an organism's life span, such as increases in muscle mass due to exercise and diet, cannot be passed on to the next generation. True False The definition of a monophyletic group is "a group of organisms that has a single ancestor and contains only some of the descendants of this unique ancestor". True False An ichnofossil is any part of the hard skeleton left behind by a vertebrate in the fossil record. True False
Answers
An ichnofossil is any part of the hard skeleton left behind by a vertebrate in the fossil record. This statement is false. An ichnofossil is a trace fossil, which is any indirect evidence of past life, such as tracks, burrows, and feces. It is not part of the hard skeleton left behind by a vertebrate.
Cladograms are scientific hypotheses that can be overturned by new data. This statement is true. Cladograms are diagrams that show the evolutionary relationship between organisms based on various traits. New data can cause changes to be made to cladograms which can result in a change to the interpretation of the evolutionary history of organisms.
Angiosperm plants did not appear until after the extinction of the dinosaurs. This statement is false. Angiosperms, also known as flowering plants, appeared in the fossil record at least 140 million years ago. Although the dinosaurs went extinct around 66 million years ago, angiosperms were already widespread and diversifying by that time.
The definition of an analogous character is "a character that has a similar function to a character in a different organism, but these similarities are due to different evolutionary origins". This statement is true. Analogous characters are traits that have evolved independently in different groups of organisms due to similar environmental pressures and not due to a shared ancestor.
In evolution, non-genetic changes that occur during an organism's life span, such as increases in muscle mass due to exercise and diet, cannot be passed on to the next generation. This statement is true. Non-genetic changes that occur during an organism's life span are not heritable and cannot be passed on to the next generation. Only genetic changes that occur in the germ cells, such as mutations, can be passed on to the offspring.
The definition of a monophyletic group is "a group of organisms that has a single ancestor and contains only some of the descendants of this unique ancestor". This statement is false. A monophyletic group is a group of organisms that has a single ancestor and contains all of the descendants of this unique ancestor. This group is also called a clade.
Learn more about Cladograms:
https://brainly.com/question/27405768
#SPJ11
Please help hurry
Question 5.6
Why do you think the Europeans use so much less resources than North America? What are they doing that is different?
Question 5.7
What constitutes equity and fairness in this situation? Should countries that have high emissions of CO2 be allowed to "buy" CO2 emission credit from developing countries that emit less CO2? Why or Why
not?
Question 5.8
Is maximum growth necessary for a healthy economy? What happens to the economy if we start to run
out of raw materials? Will technological innovations allow us to continue to grow and provide more economic "pie" and bigger "slices of the pie" for everyone?
Answers
Question 5.6. One possible reason why Europeans use less resources than North Americans is that they tend to have more efficient systems for resource use and waste management.
Question 5.7. In the context of global resource use and climate change, equity and fairness require that all countries have the right to access the resources required for basic human needs and development.
Question 5.8. Maximum growth is not necessarily necessary for a healthy economy, and in fact, there are many examples of economies that have grown rapidly but also caused significant environmental and social problems.
How are carbon energy utilized by regions?For example, many European countries have implemented policies and regulations to encourage renewable energy use, energy-efficient building design, and waste reduction and recycling.
Equity and fairness in the context of global resource use and climate change require that all countries have the right to access the resources needed for basic human needs and development, while also ensuring that the impacts of resource use are distributed fairly across populations and countries. Buying CO₂ emission credits from developing countries may be seen as a way to encourage sustainable development and reduce global emissions, but it also raises concerns about the potential for exploitation and inequality.
As we start to run out of raw materials, it will become increasingly important to find ways to reduce resource use and waste, and to transition to a more sustainable economic model that prioritizes social and environmental well-being over short-term economic growth.
Find out more on carbon emissions here: https://brainly.com/question/1088517
#SPJ1
Determine whether each statement below describes traditional or modern classification.
based on similar appearance ~ based on evolutionary relationships known as Cladistics
• known as Linnaean classification
Answers
Taxonomy is the science of finding, describing, classifying and naming organisms.
The traditional taxonomic classification is based on the most obvious similarities between species. The Linnaean system is based on similarities in obvious physical traits.
Modern taxonomy, classification is based on phylogenetic relationships of the organisms. Cladistics is a relatively new system of classification that uses shared derived traits to establish evolutionary relationships.
Learn more about taxonomy at: https://brainly.com/question/19184314
#SPJ1
Bacterial flagella have a biological motor that spins within the cell wall and is powered by ATP. This allows the flagella to spin in a whiplike motion to propel the bacterium. Is this statement True or False?
Answers
Answer:
False
Explanation:
Bacterial flagella have a biological motor that spins within the cell wall and is NOT powered by ATP.
Instead the Bacterial flagella is known as the biological motor that spins the flagella for the motion of the bacteria and is as a result of the electron imbalance in the membranes which helps in the generation of a gradient. The cells makes use of the energy present in the gradient through the help of proton motive force which helps to propel it.
AnSWER THIS ASAP!Please
Answers
Answer:
a method of classification of animals and plants according to the proportion of measurable characteristics that they have in common. It is assumed that the higher the proportion of characteristics that two organisms share, the more recently they diverged from a common ancestor.
Explanation:
A zygote is related to a blastocyst by the process of meiosis. cleavage division. fertilization. ovulation.
Answers
Answer:
It is the location for egg fertilization.
Explanation:
Answer:
CLEAVAGE DIVISION
Explanation:
Its not ovulation. Hope this helped!
Which of the following
rocks does not belong with the others?
A. obsidian
B. conglomerate
C. sandstone
D. shale
Answers
Answer:
Obsidian
Explanation:
A manufacturing company dumps its wastes into a nearby pond. One of the wastes is found to paralyze the contractile vacuoles of certain protists. A biologist looking at individual samples of these organisms taken from the pond would find that they?.
Answers
Answer:
have gained water and burst.
What adaptation means "
Answers
Explanation:
ADAPTATION:-
the action or process of adapting or being adapted.
HOPE IT HELPS
PLZ MARK AS BRAINLEST
The wrasse eats parasites off the parrot fish. The parrot fish protects the wrasse from predators.symbiotic relationship
Answers
Commensalism is a long-term biological interaction in which members of one species gain benefits while those of the other species neither benefit nor are harmed.
Which of the following statements describes primary or secondary pollutants?
a) Primary pollutants are formed in the atmosphere.
b) Secondary pollutants are released from a source.
c) Primary pollutants react to form secondary pollutants.
d) Secondary pollutants break down to form primary pollutants.
e) Primary pollutants are less dangerous than secondary pollutants.
Answers
Answer:
C and E
Explanation:
The correct options that describe primary and secondary pollutants would be C and D.
Primary pollutants are substances released directly into the atmosphere capable of harming living organisms at a particular threshold concentration. An example is carbon monoxide. Secondary pollutants, on the other hand, are formed in the environment from primary pollutants. For example, NO2 is formed from the reaction of NO and oxygen.
Secondary pollutants, therefore combine the toxicities of their component primary pollutants to arrive at stronger toxicity. Hence, secondary pollutants are more dangerous than their primary counterparts.
The correct answer is options C and E.
Which type of intermolecular attractive force operates only between polar molecules?.
Answers
Answer:
Dispersion Forces are present inbetween any molecules
in the early 1800s, light-colored moths could be found resting on light-colored trees in england. at the beginning of the industrial revolution, the trees began to turn dark because of black soot from factories. by 1898, most of the moths found in england were dark in color. which most likely enabled the dark-colored moths to survive and reproduce more than the light-colored moths?
Answers
The dark-colored moths most likely had an advantage in surviving and reproducing over the light-colored moths due to natural selection favoring their camouflage against the darkened trees.
As the industrial revolution caused trees in England to become covered in black soot, the light-colored moths that were once well-camouflaged on the light-colored trees became more visible to predators against the darkened background. In contrast, the dark-colored moths had a higher chance of blending in with the new environment, industrial melanism making them less likely to be detected and eaten by predators.
This change in the environment exerted selective pressure on the moth population. Predators selectively targeted the more visible light-colored moths, resulting in a higher predation rate for that variant. Meanwhile, the dark-colored moths, with their better camouflage, had a higher survival rate and increased reproductive success. Over time, this led to an increase in the frequency of the dark-colored allele in the moth population.
The phenomenon, known as industrial melanism, is a classic example of natural selection and demonstrates how environmental changes can influence the survival and reproductive success of different phenotypes within a population.
Learn more about industrial melanism here
https://brainly.com/question/30654397
#SPJ11
Define population pressures which is a selective pressure.
Answers
Answer:
Selective pressures are environmental factors or influences which may lessen reproduction in a species’ population and therefore contributes to evolutionary change or even extinction through natural selection.
credits to google
Explanation:
Which of the choices below exerts primary control over sodium levels in the body? A) aldosterone B) glucocorticoids C) ADH D) water levels. aldosterone.
Answers
a. Aldosterone exerts primary control over sodium levels in the body. Aldosterone is a hormone produced by the adrenal gland that helps regulate electrolyte and fluid balance in the body.
It primarily acts on the distal tubules and collecting ducts of the kidneys to increase the reabsorption of sodium ions and the excretion of potassium ions. This results in an increase in blood volume and blood pressure.
Glucocorticoids, such as cortisol, also play a role in sodium balance by enhancing the effects of aldosterone. However, they do not exert primary control over sodium levels in the body.
ADH (antidiuretic hormone), also known as vasopressin, regulates the body's water balance by controlling the reabsorption of water in the kidneys. It does not directly control sodium levels in the body.
Water levels can affect sodium levels indirectly by altering the concentration of sodium in the body. However, they do not exert primary control over sodium levels.
Learn more about aldosterone here:
https://brainly.com/question/28303131
#SPJ11
The diagram below shows how a nerve impulse passing along a relay neurone causes an impulse to be sent along another type of neurone, neurone X.
What type of neurone is neurone X?
Answers
The type of neuron that is the X neuron is that it is a motor neuron.
What is a motor neuron?It is a type of neuron located in the peripheral nervous system which will project its axon towards a muscle or towards a gland, therefore it is part of the efferent system. So there are somatic, special visceral and general visceral types.
Motor neurons have as their function the mobility of the tissues to which they go in order to generate different functions. It will carry the information that comes from the descending pathways of the spinal cord.
To learn more about motor neuron visit: https://brainly.com/question/29694659
#SPJ1
The anoxia that was common in rivers and estuaries several decades ago has been largely eliminated primarily because communities can no longer discharge sewage into the oceans sewage is converted to a solid form that is dumped on the seafloor or on land sewage is treated to remove organic matter before being discharged x O the concentration of oxygen-demanding materials in industrial wastes have been reduced sewage is now discharged outside of estuaries in the open ocean
Answers
The elimination of anoxia in rivers and estuaries several decades ago has been largely due to the changes made to sewage disposal practices.
Communities can no longer discharge untreated sewage into the oceans, as it is now converted to a solid form and dumped either on the seafloor or on land. Industrial wastes are treated to reduce the concentration of oxygen-demanding materials before being discharged.
This significantly reduces the amount of oxygen-demanding materials in the water. Furthermore, sewage is now discharged outside of estuaries in the open ocean, preventing anoxia from occurring in the estuaries. These practices have been successful in reducing the amount of oxygen-demanding materials in the water and preventing anoxia in rivers and estuaries.
know more about sewage disposal here
https://brainly.com/question/10790904#
#SPJ11
complete question is :-
The anoxia that was common in rivers and estuaries several decades ago has been largely eliminated primarily because communities can no longer discharge sewage into the oceans sewage is converted to a solid form that is dumped on the seafloor or on land sewage is treated to remove organic matter before being discharged x O the concentration of oxygen-demanding materials in industrial wastes have been reduced sewage is now discharged outside of estuaries in the open ocean. EXPLAIN.
The illustration shows a model of a chloroplast.
Chloroplast diagram
Which label points to the part of a chloroplast where the Calvin cycle happens?
A.
1
B.
2
C.
3
D.
4
Answers
its letter B!-> 2 because other supporters also say it's 2 so trust the community and pick b
Answer:
D
Explanation:
The ease with which one can expand the lungs and thorax is called?
Answers
Lung compliance refers to the ease of lung and thorax expansion during breathing. It affects respiratory efficiency and is influenced by factors such as lung tissue elasticity and chest wall integrity.
The ease with which one can expand the lungs and thorax is called lung compliance. Lung compliance refers to the stretchiness or elasticity of the lung tissue and the surrounding structures that allow for the expansion and contraction of the lungs during breathing. It is an important factor in determining the efficiency of respiratory function.
A high lung compliance indicates that the lungs and thorax can easily expand, requiring less effort to inhale and exhale. This is beneficial for efficient gas exchange and normal respiratory function. Factors that affect lung compliance include the elasticity of lung tissue, the presence of surfactant, the integrity of the chest wall, and the flexibility of the diaphragm.
On the other hand, decreased lung compliance, such as in conditions like pulmonary fibrosis or respiratory distress syndrome, makes it more difficult to expand the lungs and increases the work of breathing. It can lead to decreased oxygenation and ventilation efficiency.
Overall, lung compliance plays a crucial role in the mechanics of breathing and respiratory health.
To know more about Lung compliance,
https://brainly.com/question/32228573
#SPJ11
What is the main function of the human immune system?
O A. To protect internal organs and assists in movement
O B. To collect and respond to information about the internal and
external environment
O C. To protect the body against infection
D. To transport oxygen and nutrients to the body's tissues
Answers
Answer:
to protect the body from infection
A company wants to grow California mussels commercially in a bay on the coast. Sea stars are a predator of the California mussel. The company wants to use divers to remove on what you have learned, what do you think a computer simulation of removing the sea
all sea stars that are found in the bay, so they will not eat the California mussels. Based
stars from the mussel beds would show? Explain your answer.
Answers
A computer simulation of removing all sea stars from the mussel beds in the bay would likely show a significant increase in the population of California mussels. Sea stars are known predators of California mussels, and their removal would eliminate a key source of predation pressure on the mussels.
Without the presence of sea stars, the California mussels would face reduced predation risk, allowing them to thrive and reproduce more successfully. This would likely lead to an increase in mussel population density within the bay.
The simulation may demonstrate a positive correlation between the removal of sea stars and the growth of the California mussel population. As the simulation progresses, the mussel beds would likely expand, with individual mussels having more space to settle and grow. This expansion could have ecological benefits, such as enhancing the biodiversity of the bay, as the mussel beds provide habitats and food sources for other marine organisms. It is important to note that the simulation should consider other factors, such as water quality, competition, and potential impacts on the overall ecosystem, to provide a comprehensive understanding of the dynamics within the bay.
for more questions on simulation
https://brainly.com/question/30504595
#SPJ11
What mutation did Lucy have?
Answers
Due to Lucy's high levels of deoxyadenosine in her blood, I was able to discover she had ADA-SCID. Her proteins were produced improperly and were shorter due to the stop codon mutation.
Since the gene mutation has no impact on the active site, there is no issue. Lucy's seizures were found to be caused by a mutation in the STXBP1 gene, which also causes the rare neurological disorder STXBP1 encephalopathy, following the completion of a genetic test known as an epilepsy panel.
I believe that the tRNA error is what is causing Lucy's ADA enzyme to malfunction. Lucy's 1500 base pair length is in line with the chart's usual range for gene length. However, Lucy only has half of that at 283.
The complete question is:
Lucy was admitted to CHOP. Because Lucy did not have an infection or an injury to her brain that was causing her seizures. What mutation did Lucy have?
Learn more about mutation here:
https://brainly.com/question/17130462
#SPJ4
Surface area to volume ratios affect living things' ability to L
obtain needed resources and eliminate waste products.
Explain why cells are small in size. Be sure to explain
what happens to a cell when its volume increases.
Include at least one other strategy cells use to improve
surface area.
Answers
Answer:
Cells are small because they need to keep a surface area to volume ratio that allows for adequate intake of nutrients while being able to excrete the cells waste. That is why the cell needs to be small. The smaller it is, the larger the surface area to volume ratio is.
Eukaryotic cells are compartmentalized which is a method to increase the surface area as there are lots of membranes inside the cell across which many processes take place.
Answer:
Cells are small because they need to keep a surface area to volume ratio that allows for adequate intake of nutrients while being able to excrete the cells waste. That is why the cell needs to be small. The smaller it is, the larger the surface area to volume ratio is.Eukaryotic cells are compartmentalized which is a method to increase the surface area as there are lots of membranes inside the cell across which many processes take place.Cells are small because they need to keep a surface area to volume ratio that allows for adequate intake of nutrients while being able to excrete the cells waste. That is why the cell needs to be small. The smaller it is, the larger the surface area to volume ratio is.Eukaryotic cells are compartmentalized which is a method to increase the surface area as there are lots of membranes inside the cell across which many processes take place.
Explanation:
Why is lab safety important?
Answers
So my younger sister says that since she hit puberty she can no longer be referred to as a child. I disagreed and called her a child anyways. Do you agree or disagree with my sister? SideNote: We are both minors so I think we are both still children.
Answers
Answer:
I would still refer to her as a child because even tho you may have hit puberty that doesn't mean that ur mentally ready to not be called a child.
Explanation:
Identify the organelles in the cell to the right. A B C D E F
Answers
Answer:A
✔ vacuole
B
✔ chloroplast
C
✔ cell membrane
D
✔ Golgi apparatus
E
✔ endoplasmic reticulum
F
✔ cell wall
Explanation:
A linear strand of DNA that is wrapped around protein structures, the _______________________ carries the gene sequence of an organism.
Answers
A linear strand of DNA that is wrapped around protein structures, the Chromosome carries the gene sequence of an organism.
A chromosome is a long, slender, thread-like strand of DNA and associated proteins that carries the genetic code of an organism. DNA molecules are twisted together into a condensed and tightly wound structure called chromosomes. Chromosomes are located in the nucleus of a cell, which is enclosed by a nuclear envelope.
Chromosomes carry the genetic code for living organisms. They contain all the information needed to direct the development and functioning of an organism, from the time of fertilization through to death.
The chromosome is responsible for the genetic traits of an organism. It's composed of long chains of DNA. DNA is a nucleic acid that carries genetic information in cells.
It's shaped like a double helix, with two chains of nucleotides twisted around each other. Each nucleotide has a phosphate, sugar, and nitrogen-containing base.
To know more about DNA visit:
https://brainly.com/question/30006059
#SPJ11
when an allele is the only variant in the population it is said to be...
Answers
what is a carbon cycle
Answers
Answer:
Carbon cycle is nature's way of reusing carbon atom which travel from atmosphere into organism s in the earth and then back into atmosphere over and over again.
hope u like it