What is the function of helicase in dna replication? what is the function of helicase in dna replication? it checks for errors in the newly synthesized dna strand. it relieves strain from twisting of the double helix as it is unwound. it adds nucleotides to the new strand in the 5' to 3' direction. it untwists the double helix and separates the two dna strands. it joins together okazaki fragments?

Answers

Answer 1
The answer would be - It untwists the double helix and separates the two DNA strands. A helicase is an enzyme used to separate strands of a DNA double helix by breaking hydrogen bonds between annealed nucleotide bases.
Answer 2
Final answer:

The function of helicase in DNA replication is to separate the two DNA strands of the double helix. It works at the origin of replication, initiating the process by unwinding the DNA, forming a structure known as the 'replication fork'. If mutated, it inhibits the separation of DNA strands, affecting the entire replication process.

Explanation:

The function of helicase in DNA replication is to separate the two DNA strands of the double helix. It achieves this by unwinding the DNA at the origin of replication, thus resulting in a structure referred to as the 'replication fork'. The opening of the double helix causes over-winding, or supercoiling, in the DNA ahead of the replication fork. This is resolved with the action of an enzyme known as topoisomerase. Primase then synthesizes a RNA primer which helps DNA polymerase form a daughter strand.

If helicase is mutated, the DNA strands will not be separated at the beginning of replication, affecting the entire DNA replication process. While helicase separates the DNA strands, other proteins like single-strand binding proteins, primase, DNA polymerase, and DNA ligase carry out other crucial functions in DNA replication, ensuring the right sequence and integrity of the newly synthesized DNA strand.

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Related Questions

When communicating with a client with a psychiatric diagnosis, the nurse uses silence. when silence is used in therapeutic communication, clients should feel:?

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When communicating with a client with a psychiatric diagnosis, the nurse uses silence. When silence is used in therapeutic communication, clients should feel;

1. It is the patients turn to talk.
2. The answer from a patient should not be in a hurry.
3. The nurse expects that further communication between him and the patient is not necessary.
4. The nurse is thinking about how to interact with the patient.

True or false? the ovaries secrete a hormone that assists with labor and delivery.

Answers

This is false! They do not.


where is dissolved oxygen likely to be lowest

a) At the bottom of a deep lake
b) In the fastest part of a stream
c) along the edge of a fast river
d) at the surface of a tidal pool

Answers

The answer is A. at the bottom of a deep lake (Apex)


Answer:

Explanation:

A) At the bottom of a deep lake

Which of the following properties of soil helps in absorbing contaminants from the soil?
a.
cation-exchange capacity
b.
soil reaction
c.
soil structure
d.
soil consistency

Answers

the answer to your question is c. soil structure

Correct answer: C). Soil Structure

The soil structure refers to the arrangement of the soil into a unit known as soil aggregates. The aggregates consist of solids and porous space. It majorly consists of clay particles, and it may also contain fine particles of sand.

They absorb air pollutants, which dissipate the harmful pollutants. The absorbed pollutants are recycled back into nutrients.




According to the ipat model, technology that enhances our acquisition of minerals, fossil fuels, timber, and ocean fish ________.

Answers

According to the ipat model, technology that enhances our acquisition of minerals, fossil fuels, timber, and ocean fish increase environmental impact.
IPAT is a model or equation which expresses that 
I (stands for Environmental impact) is the product of three factors: P (stands for population), A (is affluence) and T ( for Technology). 
IPAT can be written as  (I=PAT) or I = pxAxT
Final answer:

In the IPAT model, technology that improves our ability to acquire resources like minerals, fossil fuels, timber, and ocean fish generally increases the environmental impact because it boosts our capacity to exploit these resources.

Explanation:

According to the IPAT model, technology that enhances our acquisition of minerals, fossil fuels, timber, and ocean fish increases the impact on the environment.

The IPAT equation, which stands for Impact equals Population, Affluence, and Technology, suggests that our environmental impact (I) is the product of population size (P), affluence (A), and technology (T).

Thus, technology that enhances resource acquisition typically does so by increasing our capacity to exploit these resources, thereby increasing the environmental impact.

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How does energy get converted from food molecules to muscles?

Answers

gives u more energy and energy from protein and that build muscle

btw my biceps are massive


Final answer:

Energy conversion from food molecules to muscles involves a process known as cellular respiration. In this process, the energy stored in glucose, obtained from food, is converted into ATP, a high-energy molecule. ATP powers various cellular processes, including muscle contraction.

Explanation:

Energy conversion from food molecules to muscles happens through a biological process known as cellular respiration. When we eat food, our digestive system breaks down the complex nutrients into simpler forms like glucose. This glucose is transported to cells, including muscle cells, through the bloodstream.

In the cells, glucose undergoes a process called cellular respiration, which occurs in the mitochondria. In a three-step process - glycolysis, Krebs cycle, and electron transport chain - the energy stored in glucose is converted into adenosine triphosphate, or ATP. ATP is a high-energy molecule that powers numerous cellular processes, including muscle contraction.

Hence, it’s through this series of reactions in cellular respiration that the energy from food molecules gets converted and used in muscles.

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A method of scientific investigation in which organisms are observed in their natural environment is called _____.

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It is called naturalistic observation. Naturalistic observation is an exploration strategy normally utilized by analysts and other social researchers. This system includes watching subjects in their common habitat. This sort of research is regularly used in circumstances where leading lab inquires about is far-fetched, taken a toll restrictive or would unduly influence the subject's conduct.

The renal corpuscle consists of a capillary bed called the ____________ and a capsule of epithelial cells.

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The renal corpuscle consists of a capillary bed called the glomerulus and a capsule of epithelial cells. The renal corpuscle is composed of two structures, the glomerulus and the Bowman's capsule. The glomerulus is a small tuft of capillaries containing two cell types. It is also characterized as a cluster of capillaries around the end of a kidney tubule, where waste products are filtered from the blood. Other surfaces that separate body cavities from the outside environment are lined by simple squamous, columnar, or pseudostratified epithelial cells.The gastrointestinal tract, the insides of the lungs, and the reproductive and urinary tracts where other epithelial cells line up make up the exocrine and endocrine glands.

Final answer:

The renal corpuscle in the kidney consists of a capillary bed called the glomerulus and a capsule of epithelial cells named the Bowman's capsule.

Explanation:

The renal corpuscle, which is part of the nephron unit in the kidney, comprises two primary components. The first is a convoluted network of blood capillaries known as the glomerulus and the second is a cup-like sac of epithelial cells called the Bowman's capsule. Together, they perform the primary task of filtering blood and initiating the process of urine formation.

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Sociologically speaking, the BRCA1 gene mutation is a good example of:

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The BRCA1 gene mutation is a mutation of a gene that suppresses cancer. Therefore, those  mutations, when we can detect them, tell us that a persona is likely to develop cancer and can undertake some preventive measures, such as a preventive mastectomy.

It can be seen as an example of a disease that is predictable and which is changed through social practices - our social practices (prevention) change how this gene is expressed (it no longer necessarily lead to cancer)

The coral never holds quite the pink I hope for and fish continue to catch strange sickness like the angel fish, Greta who has a parasite. What does the word parasite mean

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A parasite is an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense. Hope I helped!
A parasite is an organism that survives in a non-mutual relationship by obtaining nutrients from the host organism or lives off the host organism. In the case of parasitism, the host is harmed while the "parasite" receives benefits that could range from nutrients to shelter. This strange sickness the Angelfish is receiving is most likely due to the parasite in this instance deriving nutrients from the organism and depleting it's immune system or a disease passed on by a parasite. Hope this helped! :)

Food handlers who cut raw vegetables and raw poultry on different cutting surfaces are taking steps to prevent the

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Food handlers who does different cutting surfaces base on cutting raw vegetables and raw poultry, is trying to prevent contamination as doing this prevents food from being mixed and from being contaminated. It is also a way of having the food to be prepared properly and in a more sanitized way for people to eat.

Food handlers use different cutting surfaces for raw vegetables and raw poultry to prevent cross-contamination, which can spread harmful bacteria. Always practice thorough cleaning to ensure food safety.

Food handlers who cut raw vegetables and raw poultry on different cutting surfaces are taking steps to prevent cross-contamination. This is crucial because bacteria from raw meat, poultry, seafood, and eggs can spread to produce and ready-to-eat foods, potentially causing foodborne illnesses. To avoid this, always use separate cutting boards for fresh produce and raw meats, and thoroughly clean hands, utensils, and surfaces with hot soapy water after each use.

Explain how poaching can lead to over utilization of species

Answers

As we know that poaching is an illegal hunting or killing of animals. There are many countries where animals are poached. Poaching of animals happened due to many reasons. Like for an ivory, elephants are poached.

People who poached animals, do not care for them, they just kill or hunt animals for their own benefits. Some people have demand for ivory and some people poached elephants to get ivory. This could lead to over-utilization of animals.

Which hormone is produced by the placenta that stimulates the ovaries to continue producing estrogen and progesterone?

Answers

The hormone produced by the placenta that stimulates the ovaries to continue producing estrogen and progesterone is called the follicle stimulating hormone. This hormone stimulates the ovarian follicle allowing the egg to grow thus producing continuous supply of estrogen and progesterone.

In what location would primary succession most likely occur? An area that was covered by a glacier An area that was in a long drought An area that had severe flooding An area that was hit by a hurricane

Answers

An area that was covered by a glacier

Primary succession is a method of bringing about fertility in infertile land that can not be cultivated. This method usually involves plant species known as "pioneer species", that do not rely heavily on soil nutrients but add nutrients to the soil. The land under the glacier is likely to be void of nutrients and infertile, so primary succession will be needed there the most.

I just took the module 3 exam and the answer would be "An area covered by a glacier". :)

When you touch something hot a neuron in your finger senses the temperature which best describes the first reaction the neuron has?

Answers

a action potential forms.

Answer:

an action potential forms

Explanation:

i took the test and i got it right :)

Mr. wayne is scheduled to have a visual examination of the distal end of his descending colon that leads into the rectum. this procedure is called

Answers

Rectal/prostate exam

Excessive sweating accompanied by cold and clammy skin, rapid but weak pulse, weakness, nausea, dizziness, headache, and difficulty concentrating are early signs of

Answers

the answer is early sighns of alzheimer dementia

How long after their discovery did it take the scientific community to accept the existence of cells?

Answers

It took approximately 200 years from Robert Hooke's initial observation of cells in 1665 for the scientific community to accept cell theory, thanks to contributions from scientists like Schwann, Schleiden, and Virchow.

After the initial discovery of cells by Robert Hooke in 1665, it took until the 19th century for the scientific community to accept the existence of cells and their significance. It was not until 1839 that two German scientists, Theodor Schwann, a zoologist, and Matthias Jakob Schleiden, a botanist, proposed that cells are the basic unit of structure and function in all living things. Later, in 1858, Rudolf Virchow's observations further contributed to this understanding. Hence, the acceptance of cell theory took approximately 200 years after the first observation of cells by Hooke.

describe specialized feeding structures of parasitic platyhelminthes

Answers

The other name for Platyhelminthes is flatwarms. These soft-bodied, bilaterally symmetrical, invertebrate animals have an incomplete digestive system. They have muscular and excretory systems. The muscular system allows them to move from place to place over solid surfaces, while the excretory system lets them maintain a proper balance of water and salts.Flatworms have shuckers  for feeding and they absorb nutrients directly from the host’s digestive system with their shuckers. 

What hormone works to regulate the calcium ion concentration in the blood?

Answers

The parathyroid hormone (PTH), emitted by the parathyroid organs, is in charge of controlling blood calcium levels; it is discharged at whatever point blood calcium levels are low. PTH expands blood calcium levels by empowering osteoclasts, which separate issue that remains to be worked out calcium into the circulatory system.

What is speed of bobsled whose distance time graph indicates that it traveled 122m in 25 s

Answers

4.88 meters per second
Good luck and have a nice day.

The large proximal projection on the femur is termed the

Answers

The large proximal projection on the femur is termed the Trochanter.

Mutations that do not change the amino acid sequence and thus have no consequence are termed _____ mutations.

Answers

they are reffered to as a silent mutation

The discovery of cosmic microwave background radiation and primordial helium gas was scientific evidence supporting the _____.

Answers

The discovery of cosmic microwave background radiation and primordial helium gas was scientific evidence supporting the "Big Bang Theory".

"The Big Bang Theory"

Which of the following is bilaterally symmetrical?

1.Lobsters
2.Humans
3.Cats
4.All Of The Above

Answers

Answer: D) All of the above

All the species you listed possess a bilateral symmetry
The answer is lobsters.

Moth populations changed from mostly light colored to mostly dark colored in the 1800s. this relates to _____. answers

Answers

The correct answer to this is:

“Microevolution”

Microevolution is an evolutionary change that occurs to small group of species within a short span of time. The cause of this occurrences are most commonly an external factor. For the case of moth, the soot produced by the Industrial Revolution in the 1800s resulted in trees to darken and other places in England where moths liked to perch. Because of this, light colored moths were more easily identified by predators against a dark background. Dark colored moths had a larger survival advantage since they could blend in against a similarly dark background. Natural selection or microevolution favoured the darker moths, therefore their proportion within the moth population increased.

Microevolution is the right answer.  

Microevolution is the development in allele regularities that befalls over time within a culture. This variation is due to four distinct methods: mutation, adaptation (artificial and natural), gene flow and hereditary drift. This development occurs over a comparatively short span of time than the development takes place under the term macroevolution that is where greater diversity in the community befalls.

When flies having a gray body and normal wings were crossed with flies having a black body and vestigial wings, the F2 generation showed a phenotypic ratio of 3:1, and not 9:3:3:1.

Which of the following could be a correct explanation for this ratio?

A- Genes for body and wing size were on the same chromosome and inherited together
B- Genes for body and wing size assort independently
C- Genes for body color and wing size are inherited separately from each parent

Answers

The answer is: A- Genes for body and wing size were on the same chromosome and inherited together

describe the modern atomic model of oxygen

Answers

The Oxygen is the Element with atomic number 8 on the Periodic Table of the Elements. It is a colorless gas, noted with the symbol O. Every atom consists of a positively charged nucleus surrounded and neutralized by negatively charged electrons revolving in orbits at varying distances from the nucleus, The atom of the oxygen has 2 first energy levels and 6 second energy levels.

Final answer:

The modern atomic model of oxygen incorporates electron configuration, hybridization, and molecular orbital theory to explain the complex bonding and properties of oxygen atoms, highlighting the dynamic nature of electron interactions and molecular structure.

Explanation:

The modern atomic model of oxygen, according to current understanding in Chemistry, is significantly more advanced than the early models of the atom. In this model, oxygen is depicted as having eight protons in the nucleus, surrounded by a cloud of electrons. The electron configuration of oxygen is 1s²2s²2p⁴, which outlines that there are two electrons in both the s orbitals, and four electrons in the p orbitals. However, when oxygen forms covalent compounds, the concept of hybridization comes into play, altering the atomic orbitals into hybrid orbitals that can bond more effectively with other atoms. According to the molecular orbital theory (MO theory), the atomic orbitals of individual oxygen atoms combine to yield molecular orbitals that are delocalized over the entire molecule, such as in O₂. This intricate bonding explains why oxygen has a property called paramagnetism and how electrons are distributed within molecules. Thus, the modern atomic model is characterized by its emphasis on electron energies, probabilities, and molecular interactions, moving beyond static, simplistic representations of atoms to more dynamic and complex ones.

Which type of lipoprotein transports newly digested fat from the intestine through the lymph and blood?

Answers

Chylomicron is a type of lipoprotein transports newly digested fat from the intestine through the lymph and blood.

Chylomicron is usually formed in the small intestine of the body and helps in the motion of cholesterol and fats in the bloodstream (water-based solution). 

1. How could you test to see if an enzyme was completely saturated during an experiment?

Answers

Final answer:

To test if an enzyme is completely saturated during an experiment, the reaction rate is measured at different substrate concentrations. If the reaction rate reaches a maximum and does not increase further even with higher substrate concentrations, it indicates the enzyme is completely saturated with substrate.

Explanation:

The presence of complete saturation of an enzyme during an experiment can be determined through various methods. One common method is to measure the reaction rate (velocity) of the enzyme at different substrate concentrations. As the substrate concentration increases, the reaction rate initially increases. However, at a certain point, further increasing the substrate concentration does not result in an increase in the reaction rate.

When the reaction rate reaches a maximum and does not increase even with higher substrate concentrations, it indicates that the enzyme is completely saturated with substrate. This is referred to as saturation kinetics.

By plotting the reaction rate versus substrate concentration, you can observe the point at which the reaction rate plateaus, indicating enzyme saturation.

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Human milk provides approximately _____ percent of kilocalories from fat. 30 40 50 60 If the discriminant of an equation is negative, which of the following is true of the equation A it has two complex solutionsB it has one real solution C it had two real solutions Oily or fatty ingredients that prevent moisture from leaving the skin are: Rachel carson's book silent spring, published in the 1960s, ________. A juice company did a survey among 100 customers to find their juice preferences. The customers were asked about their preferences for apple or orange juices. Out of the total 35 people who liked apple juice, eight liked orange juice also. There were 20 people who liked orange juice. Part A: Summarize the data by writing the values that the alphabets A to I in the table below represent. (5 points) Like apple juice Do not like apple juice Total Like orange juice A B C Do not like orange juice D E F Total G H I Part B: What percentage of the total people did not like either apple or orange juice? (3 points) Part C: Do the people surveyed have more dislike for apple juice than orange juice? Justify your answer. (2 points)A juice company did a survey among 100 customers to find their juice preferences. The customers were asked about their preferences for apple or orange juices. Out of the total 35 people who liked apple juice, eight liked orange juice also. There were 20 people who liked orange juice. Part A: Summarize the data by writing the values that the alphabets A to I in the table below represent. (5 points) Like apple juice Do not like apple juice Total Like orange juice A B C Do not like orange juice D E F Total G H I Part B: What percentage of the total people did not like either apple or orange juice? (3 points) Part C: Do the people surveyed have more dislike for apple juice than orange juice? Justify your answer. (2 points) Does anyone know the answer to this question? A 25kg box fell 200m with an acceleration of 5 m/s2. with what force did it hit the floor when it landed? A 15-year-old female is diagnosed with prader-willi syndrome. this condition is an example of: Describe what type of diet one might follow while attempting to decrease the risk of developing colon cancer. Why is it useful to calculate average speed? What are the major components of cultural capability? HELP Please THANKS:(((( If you are under the age of 21 and have any detectable amount of alcohol in your system while operating a motor vehicle in a public place, you may be charged with Statutes are legislation passed by legislative bodies on the _______ levels. A. local B. federal and state C. federal, state, and local D. state and local classify the following triangle . check all that apply Suppose you want to take pictures of your friend's soccer game. How should you prepare your camera? In Males which of the following organ performs a dual function of ejaculation of sperm and voiding of urine As the product life cycle curve approaches the decline state, a company can attempt to jumpstart the curve again by doing which of the following? find new users and new uses increase the size of their sales force increase the advertising budget increase free samples as incentives to buy none of the above Which new type of clothing was adopted by the Five Tribes? A. deerskin B. turbans C. moccasins D. cotton clothing A developmental psychologist would be interested in studying Steam Workshop Downloader