Unzips the DNA strand by breaking hydrogen bonds

Answers

Answer 1
HELICASES unzips the dna at the beggening of replication to then break the hydrogen bonds

Related Questions

How does the body maintain blood sugar levels? your own words

Answers

Answer:

When the body does not convert enough glucose, blood sugar levels remain high. Insulin helps the cells absorb glucose, reducing blood sugar and providing the cells with glucose for energy. When blood sugar levels are too low, the pancreas releases glucagon.

Explanation:

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answer pls! with the roman numerals

Answers

Answer:

i am quiet sure the answer is III,V,II,I,VI

Explanation:

Which type of reproduction is shown below

Answers

Answer:

ummm there is no reproduction shown below

There no photo shown at all

Look at the graph below. A graph is shown with Absolute magnitude shown on y axis and Surface temperature in degree Celsius shown on x axis. The Dwarf stars are shown along a slanting line from coordinates 30,000 and minus 3 to 10,000 and minus 4. The Main Sequence stars are shown along a slanting line from coordinates 20,000 and minus 2 to 2,000 and minus 6. The giants are shown along a line parallel to the x axis from coordinates 5,000 and 2 to 2,000 and 3. The supergiants are shown along a line parallel to the x axis from coordinates 7,500 and 4 to 2,500 and 4. Point A has coordinates 20,000 and minus 4. Point B has coordinates 2,500 and minus 4. Point C has coordinates 5,000 and 2. Point D has coordinates 7,000 and 4. Which of the following stars is most likely to be red? Star A Star B Star C Star D

Answers

Answer:

Star A

Explanation:

If you look directly at the diagram, the dwarf stars are labeled under 'A' and are the least in mass and temperature.

Being the smallest and coldest, dwarf stars most commonly have red coloration, which would make them the obvious choice.

Star A which is a dwarf star has the coldest temperature, and therefore is a red star since red stars are the coldest stars.

What are stars?

Stars are a large self-luminous bodies whichbpriducw large amounts of heat energy and light energy as a result of the nuclear reactions occurring within them.

Stars have different colors and different sizes.

Red stars are the coldest stars and also the least massive.

From the chart, Star A which is a dwarf star has the coldest temperature, and therefore is a red star.

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3. Which process is most directly involved in the
production of egg cells by a female frog?

Answers

Answer questions ?.. forgot to put them

Identify the converted product of the photosynthesis process.​

Answers

During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen (O2) and a form of sugar called glucose (C6H12O6).


3. Gregor Mendel cross-pollinated red and white snapdragon flowers,
What information indicates that incomplete dominance was achieved?"
O the offspring had heterozygous allels
O the offspring had recessive alleles
O the offspring were pink
O the offspring were red

Answers

The answer is a the offspring had heterozygous allels

What happened? A corpse is discovered in an enclosed room, there are no open windows, yet blowfly larva (stage 2) are found on the body. What does this tell you about the corpse?

Answers

Answer:

The corpse was deposited into the room from somewhere else

Explanation:

The larva could not have spontaneously emerged from the corpse if the blowfly had not somehow perched and laid its egg on it. Since there are no open windows, and perhaps, other openings to the room; the only plausible explanation for the emergence of the blowfly larva would be that the corpse was deposited into the room from somewhere else. From the initial location, the blowfly had perched and laid its egg on the body and the eggs only hatched while in the enclosed room.

The corpse changed into deposited into the room from someplace else as the larva couldn't have spontaneously emerged from the corpse if the blowfly had now no longer in some way perched and laid its egg on it.

Since there aren't any open windows, and perhaps, different openings to the room; the best potential cause of the emergence of the blowfly larva might be that the corpse changed into deposited into the room from someplace else. From the preliminary location, the blowfly had perched and laid its egg at the frame and the eggs best hatched even as withinside the enclosed room.

What are larvae?

Larvae are the caterpillars and worms that has some kind of grubs and maggots. It usually lives inside the mud.

Thus it is well explained.

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Those are questions
Here is the chart to go off

Answers

then the cayote and bear population would grow
Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong. Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.

which ecosystem likely has the highest biodiversity? W, X, Y, Z

Answers

Answer:

I think it's Z

Explanation:

Answer:

Z kuddos to the dude above me

Explanation:

How many different ways can the 23 homologous pairs in a human germ cell arrange themselves during Metaphase I?

Answers

Answer:

eight million

Explanation:

Eight million different ways can the 23 homologous pairs in a human germ cell.

What is Homologous pairs?

One of a pair of chromosomes with the same gene sequence, locations, chromosomal length, and centromere placement is referred to as a homologous chromosome. One paternal and one maternal chromosome make up a homologous pair.

A somatic cell of a human has a total of 46 chromosomes in its nucleus. The father inherits half of them (22 autosomes Plus X or Y chromosome), while the mother inherits the other half (22 autosomes + X chromosome).

A female typically has 23 homologous chromosomes, compared to a male's 22. This is due to the fact that men' X and Y sex chromosomes are not identical. During meiosis, homologous chromosomal pairing is crucial.

Therefore, Eight million different ways can the 23 homologous pairs in a human germ cell.

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what were some of the earliest life forms? and what were they like

Answers

The earliest forms of life were microorganisms. These organisms appeared about 3.77 billion years ago.

What does it mean that earlobe attachment is a continuous trait?​

Answers

Answer:

If you decided that the continuous spectrum of earlobe shape was a more accurate way to describe the variation, you aren’t alone. Family and genetic studies show that earlobe attachment is actually not a simple trait, but rather a complex trait, affected by multiple genes and environmental factors.

To sciences do not agree on which type of grocery bag is better for the environment what is the most likely outcome of this disagreement

Answers

Answer:

paper bags jute bags , cotton bags might be used for the environment

Pls answer its due soon!!!

Answers

Explanation:

Meiosis makes genetic variety possible. It makes sperm & egg cells called gametes. Each gamete has 23 chromosomes. To make a diploid cell two gametes (sperm & cell) come together.

During prophase 1 the chromosomes pair up with their homologous pairs so they can transfer their genetic information and exchange it between each other. It makes recombinant chromosomes that influence the genetic diversity between the same people.

Now they are in metaphase 1, the chromosomes are in pairs in the middle of the cell. In anaphase 1, the chromosomes are pulled away by the spindle fibers. Then in telophase 1, there are two formed nuclei. Cytokinesis 1 then splits the cytoplasm.

Now they are in meiosis 2. During prophase 2, there are chromosomes and the spindles are starting to form again without crossing over like in prophase 1. In metaphase 2, chromosomes are going to line up in the middle in both cells unlike during metaphase 1 where the chromosomes were only in pairs.  In anaphase 2, only the chromatids are being pulled away by the spindle fibers. Next in telophase 2 the nuclei reform and the 2 cells are each going to divide into 4 cells. Finally, cytokinesis completely splits the cytoplasm.

Keeping in mind that each sex only produces one type of gamete cell (sperm or eggs), and of the independent assortment and crossing over of chromosomes, the end result will be diversity.

What are the locations and end products for the processes of transcription and
translation?

Answers

Transcription is the synthesis of RNA from DNA. Occurs in the nucleus. Translation is the synthesis of a protein from RNA. Occurs in the cytoplasm.

The cytoplasm is the site of translation, the next process that converts a gene into a protein. In order to “read” the sequence of mRNA nucleotides, the ribosome, a specialized complex, interacts with the messenger RNA.

What is role of gene expression in an organism?

It serves as both a volume control that raises or lowers the level of proteins produced, and an on/off switch to regulate when proteins are created.

Because a particular protein can only be made when its gene is turned on, gene expression is significant.

But the process of turning a gene into a protein involves numerous steps, and one of these phases—the production of proteins—is essential for the gene expression pathway that can be altered in cancer.

Therefore, transcription occur at nucleus and translation take place in cytoplasm.

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What are gametes?

male and female reproductive organs
male and female reproductive tissues
male and female reproductive systems
male and female reproductive cells

Answers

Answer:

male and female reproductive cells

Explanation:

I hope it helps ❤❤

Answer:

the last one

Explanation:

It is advantageous for a predator to prey exclusively on a single prey species.

Answers

Answer:

Assuming this is a true/false question, the answer would be false.

If a predator only preyed on one species, it would be at a disadvantage if the prey it feeds on gets wiped out in that region.

Therefore, your answer is False.

Which factor can decrease the rate of a chemical reaction?
low activation energy
high pressure
low temperature
high concentration of enzyme

Answers

Low Temperature



Done !!!!
low temperature can decrease the rate of a chemical reaction

Dissolving CO2 in the ocean is an example of which sphere movement?

Answers

i believe it’s the lithosphere

PLEASE HELP QUICK Each cell of a human male normally contains _____. A. One X chromosome and one Y chromosome B. Two X chromosomes C. One X chromosome and two Y chromosomes D. Two Y chromosomes

Answers

Answer:

The answer is A.

Explanation:

Cathy's favorite salad dressing is a liquid with particles of salt, pepper, and garlic. When comparing a spoonful of salad dressing to a cell, what would the liquid be equivalent to? What would the particles be equivalent to?

Answers

Answer:

Liquid equivalent to "cytoplasm" and the particles equivalent to "organelles".

Explanation:

While comparing a liquid salad dressing to a cell, the liquid will be equivalent to "cytoplasm" because cytoplasm is a thick solution present in each cell that made up of water, salts, and proteins.

The particles would be equivalent to "organelles" because as particles float in liquid salad adding flavours to the salad likewise organelles are present in a cell floating in the cytoplasm that performs a specific function.

Hence, the correct answer is " liquid will be equivalent to "cytoplasm" and the particles will be equal to "organelles".

20 points and will mark brainliest! Please explain how you got it though

Answers

Answer:

crossing over during meiosis

Explanation:

i just had biology last semester hope this helps

8. What is one similarity between human skeletal muscles and some bacteria?
A. Both carry out autotrophic nutrition when food becomes scarce in the environment,
B. Both produce lactic acid when oxygen is not available for respiration.
C. Both reproduce asexually, using binary fission and regeneration.
D. Both lack a nuclear membrane surrounding the chromosomes.

Answers

Answer: B

Explanation:

Human skeletal muscles and some bacteria both produce lactic acid when oxygen is not available for respiration, which is similar. The best choice is B.

What are skeletal muscles?

Skeletal muscles enable humans to move and perform daily activities. They are essential to breathing mechanics and help preserve balance and posture. They also protect the vital organs of the body.

Skeletal muscle fibers can be found in muscles that are attached to bones. They are consciously regulated and have a striated appearance.

Lack of oxygen causes both skeletal muscle and bacteria to produce lactic acid through respiration.

Since both produce lactic acid when oxygen isn't available for respiration, option B is the proper response.

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why does the temp of the air increase with the height of the stratosphere?

Answers

Answer:

The hot air rises and the cool air falls

Explanation:

Calculate the mass of an object whose weight is 400 N and acceleration due to
gravity is 10 m/s2​

Answers

Answer:

40

weight= 400N

acceleration due to gravity= 10m/s2

now

force=m*g

400=m*10

m=40kg

PLEASE HURRY
Which pair of structures would provide a positive identification of an animal cell under a microscope?

flagellum, lysosome


nucleus, mitochondrion

ribosome, cell wall

chromatin, chloroplast

Answers

flagellum, lysosome: Both of these are found in animal cells, but the real difference is flagellum is ONLY found in animal cells

nucleus, mitochondrion: Both of these are found in Animal cells X

ribosome, cell wall: Cell wall is only in plants X

chromatin, chloroplast: Chloroplast is only found in plant cells X

Explanation:

Firstly cell wall and chloroplasts can only be found in plant cells and will not appear in an animal cell.

Flagellum usually appears in many bacteria (microorganism) and only a few animal cells. Most animal cells do not have flagellum.

However animal cells do have a nucleus which contains important genetic material such as DNA and mitochondrion which creates energy for the cell to use for metabolism inside the cell. (Even though most eukaryote cells have these 2 organelles)

Between the 1st and 2nd options, none of them is exactly correct. But nucleus and mitochondria are more widely found in various types of cells (plants, etc.)

I would choose the 1st option as the best answer here because it is more detailed.

Why are the DNA molecules considered to be semi-Conservative?

Answers

Answer:

do you have the pic?

Explanation:

Answer:

DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.

Explanation:

Drag each image to indicate whether it shows point source pollution or non-point source pollution

Answers

Answer: The first and the last are point source and the second and third are non-point source.

Explanation: I got these right on the quiz.

The first image and the last image are point source pollution while the second and third images represent non point source pollution.

A point source pollution refers to a pollution that is emerging from a particular point such as from a pipe. It is traceable to a given source. The non - point source pollution is not traceable to any particular source.

In the image as shown, the first image and the last image are point source pollution while the second and third images represent non point source pollution.

Learn more: https://brainly.com/question/8592296

Why do carnivorous
plants sometimes "eat" insects and other organisms?

Answers

Answer:

Because.they are carnivours ya know

Answer:

Like all plants, carnivorous plants are capable of photosynthesis. Since they usually live in areas where the soil quality is poor, they must supplement their diet with nutrients gained from digesting animals. Like other flowering plants, carnivorous plants use tricks to entice insects.

Explanation:

hope this helps have a good rest of your day/night :)

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Solve the proportion.s+1/4 = 4/8s= PLEASE HELP WILL MARK BRAINLIEST YOU DONT HAVE TO EXPLAIN qwesdddddddfffffffggggggggggggggggggggggggggggggggggggggg is 17/36 rational or irrational PLEASE HELP GIVING BRAINLEST PLEASE 30 POINTS Can someone please help me on Number 3 Please :) Balance the following chemical equation: CH4+ Cl2 CCl4+ HCI I need someone to answer if you know about cable It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before usthat from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotionthat we here highly resolve that these dead shall not have died in vainthat this nation, under God, shall have a new birth of freedomand that government of the people, by the people, for the people, shall not perish from the earth.Abraham Lincoln, Gettysburg Address, November 1863Which of the following most directly contributed to the conflict referred to in the excerpt? help please for a project which picture do I do for my film class. A certain insecticide kills 60% of all insects in laboratory experiments. A sample of 12 insects is exposed to the insecticide in a particular experiment. What is the probability that exactly 10 insects will die Need help quick!!!!!!!!!!!!!! I WILL GIVE BRAINLIESTUse the image to answer the question.The image shows a food chain. An arrow points from grass to a grasshopper. An arrow points from the grasshopper to a lizard. An arrow points from the lizard to a hawk. An arrow points from the hawk to a fox.What would happen if the number of grasshoppers in this food chain decreased? A. The amount of grass would increase. B. The number of lizards would increase. C. The amount of grass would decrease. D. The number of hawks would increase. Read the following passage and answer the question.And though I have kept the name, I am notfor reasons you will soon discoverthe same Charlotte Doyle.Which themes does this passage suggest? Select all that apply.transformationlovejusticechange The City Mouse and the Country MouseA City Mouse and a Country Mouse were acquaintances (friends), and the Country Mouse one day invited his friend to come and see him at his home in the fields. The City Mouse came, and they sat down to a dinner of roots. The fare was not much to the taste of the guest, and presently he broke out with "My poor dear friend, you live here no better than the ants. Now, you should just see how I fare (live)! You must come and stay with me, and I promise you, you shall live on the fat of the land." So when he returned to the city he took the Country Mouse with him, and showed him into a pantry containing flour and oatmeal and figs and honey and dates. The Country Mouse had never seen anything like it, and sat down to enjoy the luxuries his friend provided: but before they had well begun, the door of the larder opened and someone came in. The two Mice scampered off and hid themselves in a narrow and exceedingly uncomfortable hole. Presently, when all was quiet, they ventured out again; but someone else came in, and off they scuttled again. This was too much for the visitor. "Good-bye," said he, "I'm off. You live in the lap of luxury, I can see, but you are surrounded by dangers; whereas at home I can enjoy my simple dinner of roots and corn in peace." WILL MARK BRAINILIST Which of the following most closely reflects the theme of the passage? (10 points)A modest life with peace and quiet is better than a richly one with danger and strife.Precious things are for those that can prize them.Just because something is difficult does not mean it is bad.Do not be deceived by the innocent looks of those that were once your enemies. PLS help its about Triangles Thank you!!! TRUE or FALSE: Egypt was largely dependent upon the surplus grains that were able to grow due to the water and silt of the Nile. *Ten Points. What is 4.4% of 625? How long does it take the average person to climb up and back down Kilimanjaro Por las maanas mi madre siempre me (preparar, ella) cacao caliente.Nunca (tomar, yo) caf con leche porque no me (gustar) .Por las tardes (haber) mucha gente en la plaza Mayor de mi pueblo. (Tener, nosotros) muchos animales: cerdos, cabras y unas ovejas.Los gatos en la granja (pasar) las tardes de verano durmiendo.Los sbados (hacer, nosotros) una parrillada e (invitar, nosotros) a los amigos.