What is the twisted zipper shape of DNA called?

Answers

Answer 1

Answer:

[tex]I~am~beinggreat78~and~will~help~you![/tex]

The shape of DNA is called a Double Helix. This shape is often referred to as a, "spiral staircase".  


Related Questions

What ecosystem services and resources do we use/rely on for everyday life? (list as many as possible)

Answers

Ecosystems underpin all human life and activities. The goods and services they provide are vital to sustaining well-being, and to future economic and social development. The benefits ecosystems provide include food, water, timber, air purification, soil formation and pollination.

Hope you have a great day;) and can you mark me branniest

What common sandwich condiment/spread is a good source of vitamin e?.

Answers

Answer:

Peanut butter

Explanation:

Peanut butter's vitamins are 19.5% vitamin E. Other condiments and spreads are usually under this.

How does cystic fibrosis affect mitosis? If yes, explain how.

Answers

Answer:

Yes, it does affect mitosis.

Explanation:

CF is caused by a mutation in the gene that produces cystic fibrosis transmembrane conductance regulator proteins. This defective CFTR protein will change ion influx and efflux across the body's cell membranes. This, in turn, will change the environment of the cells.

hope this helps :)

What does fossil evidence show about evolution?

Answers

Answer:

Answer below

Explanation:

Fossils provide physical examples of what organisms have looked like over time. For example, we can look at giraffes over time, who have evolved to have had long necks. When we look as fossil records of giraffes and similar species, we see that the longer ago that animal lived, the shorter their neck was, and as time progresses, the neck gets longer. However, we also see that in general the giraffes with longer necks, regardless of time period, will have lived longer and healthier lives (we can usually tell this just by how big the fossil is), as with longer necks the animal was able to reach more food and live longer. That giraffe then reproduced and shared their longer neck traits, while those with genetic markings to make their necks shorter will have died before reproducing. Therefore, we can see all forms of evolution through fossils.

Which of the following is true of salt lakes? a. the water flowing in to salt lakes comes directly from the ocean. b. salt lakes are formed when river bends are cut off. c. the water flowing in to salt lakes contains minerals. d. salt lakes do not experience shrinking due to erosion. please select the best answer from the choices provided a b c d

Answers

The true statement about salt lakes is that the salt lakes contain minerals.

What is the salt lake?

The salt lake is a  lake that is full of minerals. The concentrations of mineral ions in a salt lake is always very high and this raises some concerns about the situations in which the water from the lake can be used.

Hence, the true statement about salt lakes is that the salt lakes contain minerals.

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Do humans impact this ecosystem? How?

The lake is the ecosytem that is nearest to me. FIsh, plants and reptiles are biotic factors that should be in there so if it was like a real lake it would. So the sky and grass and sunlight will be aibiotic variables.

Answers

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

How are gasses exchanged in the alveoli

Answers

Answer:

The alveolar walls and capillary walls share a membrane. That's how close they're getting. This allows oxygen and carbon dioxide to readily pass from the respiratory system to the circulation. Oxygen molecules bind to red blood cells as they return to the heart.

Help me in exercise 7 and 8

Answers

Answer:

I took a picture of my answers and put it in, and for exercise 8 do you have words to fill in the blanks? or is it just your own words.

Explanation:

What is the primary function of mitosis and meiosis?

fertilization

ensure cellular respiration uses the correct amount of energy
ensure cells have the correct amount of DNA
initiate as_xual and s_xual reproduction

Answers

Answer:

initiate as**xal reproduction (MITOSIS) and s**ual reproduction (MEIOSIS)

During translation, amino acids are carried to the ribosome by.

Answers

Answer:

tRNA

Explanation:

Which descriptions represent social consequences of sustainable land use?

1. Land is zoned for housing

II. Environmental degradation stops

III. Less land use causes economic downturn


o I and II
O ll and III
OI only
O lll only

Answers

Answer:

II and III

Explanation:

Did the quiz : ()

Answer:ll and lll

Explanation:

How does carbon get from plants to animals like cows?

Answers

Answer:

Animals breath out Carbon and breath in Oxegon but plantes breath out Oxegon and breath in Carbon so a animal breath out the Carbon and the paint breaths that in and breaths out the Oxegon so the animal breaths the

Oxegon in

Hope This Helps :)

What natural resources are used to make artificial sweeteners?.

Answers

phenylalanine and aspartic acid

A cell that phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune system is a(n) ______ cell.

Answers

Antigen presenting cell is a cell phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune system

What is Antigen presenting cells?

An antigen-presenting cell refer to an immune cell that detects, engulfs, and pass a message to the adaptive immune response about an infection. When a pathogen is detected, the antigen presenting cells will engulf the pathogen and digest it to form many different fragments of the antigen.

Therefore, Antigen presenting cell is a cell phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune system

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When a wave reaches a coastline, it releases a burst of energy that generates a current, which runs parallel to the shoreline and this type of current is called a longshore current as you can see here. Review the movement of the longshore current. What is the result of this sheet of water movi n on and off the shore?

Answers

Answer:

if it is longshore

it leaves the waste materials in the water on the lanf

7. What is the general relationship between the color of a filter/solution and the light that it absorbs?.

Answers

Answer:

A filter will absorb its complementary color of light. So a yellow filter absorbs blue light since blue is across from it on the color wheel. Whatever light is not absorbed will be transmitted; so yellow filters transmit red and green light (if incident upon it), also known as yellow light.

hope its helpful

A filter will absorb light of the complementary color. As blue is opposite yellow on the color wheel, a yellow filter will therefore absorb blue light.

What is filter?

A filter is a translucent substance that lets some colors flow through while absorbing others.

Color can only be produced by light. Color pigments (paints, dyes, or inks) display color by reflecting the light that isn't absorbed while absorbing some portions of the light spectrum.

The same principles govern how color filters function, with some color wavelengths being absorbed and others being transmitted.

Only yellow will pass through a yellow color filter while all other colors are absorbed. Therefore, if blue light is shone on a blue object through a blue filter, the object will still reflect blue and thus appear blue.

Therefore, A filter will absorb light of the complementary color. As blue is opposite yellow on the color wheel, a yellow filter will therefore absorb blue light.

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Mary loved having her goldfish tank in her office. She said watching the fish swim around was calming to her on stressful days. Mary thought that if 2 goldfish in her tank could make her less stressed then certainly 8 goldfish would be even better. After three days of having 8 goldfish in her tank, she noticed 5 of the fish began to sink to the bottom of the tank becoming less active than the remaining 3. A few days later the 5 sick fish died and the 3 remaining fish thrived. Use the data to help you choose three reasons the carrying capacity of the fish tank wasn’t able to accommodate all 8 goldfish.

Answers

Answer: I think that the reason to this is because the oxygen abundance was too low, the competition for food and other resources was too high, so there could be fish the would be filtered out and be killed.

Explanation:

A population in genetic equilibrium has constant___and____ frequencies and no evolution

Answers

Speed and time is your answer to the question
It would be “ constant speed and time”

The Convention on the Protection and
Use of Transboundary Watercourses and
International Lakes of 1992 established
laws to govern all water that transect the
U.S
A. and the Bahamas
B. and Canada
C. and Hawaii
D. and Russia

Answers

Answer:

B. and canada

Explanation:

Sana po itoy maka tulong

If a cell was observed under the microscope and found to have a rigid cell wall and be green in color that cell is most likely a

Plant cell
Animal cell
Algae cell
Bacterium cell

Answers

Answer:

A plant cell is your answer

Explanation:

prosses of elimination

animal cell - dose not have a cell wall

algae cell - its cell wall has more of a bubblelike appearance

bacterium cell - cell wall is not rigid, and color can vary it has more of a lose thread type look.

plant cell - has a green cell wall that is rigid <--- this is your answer

List the moon phases in order beginning and ending with the full moon: full moon, waxing gibbous, waning gibbous, waxing crescent, waning crescent, new moon, first quarter, third quarter, full moon

Answers

Answer:

Full Moon, waning gibbous Moon, last quarter Moon, waning crescent Moon, new Moon, waxing crescent Moon, first quarter Moon, waxing gibbous Moon, and finally full moon again.

Explanation:

Hope this helps :3

Answer:

new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter.

Explanation

Which process copies an organism's DNA?
A mutation
B replication
C transcription
D translation

Answers

Answer:

I think it's is B. replication

Answer:

replication is the process copies an organisms DNA

Necrotic cell death :___________
a) usually involves inflammation.
b) is usually much slower than apoptotic cell death.
c) usually requires several days.
d) is the result of a genetic program for self-destruction.
e) is apoptotic.

Answers

Necrotic cell death is caused by external factors and usually involves inflammation.

What is necrotic cell death?

Necrotic cell death is cell death caused by external factors such as injury or infection which usually involved swelling of cells, plasma membrane rupture and spilling out of cellular components.

Unlike apoptosis or programmed cell death, necrotic cell death is a harmful way for cells to die.

Thus, it can be concluded that necrotic cell death usually involves inflammation.

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Why does subduction occur at oceanic and continental plate boundaries?

Answers

Answer:

Due to the high density of the oceanic plate.

Explanation:

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Gymnosperms and angiosperm are believed to be more closely related to one another than the other major plant groups because

Answers

Answer:

cause both groups are protect their seeds without any protective structure

Explanation:

which of the follow is an example of how groundwater interacts
with the geosphere?
O hot springs
O All of these are examples
Ostalactites/stalagmites
O gysers

Answers

Answer:

best answer is A

Explanation:

Overgrazing of grasslands can lead to reduced range quality. Two of the major effects of overgrazing are:.

Answers

Answer:

soil erosion and lack of nutrients in the soil

Explanation:

the weak, overgrazed pasture will be highly susceptible to interrill, rill and gully erosion, which can lead to: loss of valuable topsoil; reduction in soil organic matter; and reduction in nitrogen pool to feed your forage. overgrazing increases soil compaction

What is the smallest lava fragments produced by an explosive eruption called?

Answers

Explanation:

rock fragments between 2 and 64 mm in diameter they were ejected from a volcano during explosive eruption

and that is called LAPILLI

A pyroclastic grain, lapilli is the smallest lava fragment produced by an explosive eruption.

What is a pyroclastic grain?

Any volcanic piece that was propelled through the air by volcanic activity is known as a pyroclastic. A pyroclastic eruption is one in which fountains or explosions make up the vast majority of the activity. Lapilli, lava bombs, and lava blocks are some pyroclastic grains.

Pyroclasts include volcanic bombs, cinders, and ash. Pyroclasts are created either directly from the magma or by removing solid fragments from the conduit's walls, which are typically found close to the surface. Most parks with volcanoes or volcanic rocks have pyroclastic rocks that can be seen.

Lapilli is the smallest lava fragment produced by an explosive eruption, and it is a pyroclastic grain.

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Which region of the human alimentary tract has both the largest population of bacteria and the greatest species diversity

Answers

The region of the human alimentary tract that has both the largest population of bacteria and the greatest species diversity is the the colon.

The normal flora of the alimentary tract

Normal flora are those microorganisms that resides in a living organism without causing it harm or diseases.

These normal flora become established in different parts of the body from birth such that the normal flora found in the mouth is not the same as the one found in the colon of the alimentary tract.

From research works, the large intestine (colon) is known to contain 100 billion per milliliter of fluid culture.

The massive numbers of bacteria in the large intestine (colon) creates a great special variation in the flora. The streptococci and lactobacilli found in the colon often adhere to cells by means of capsules surrounding the bacteria.

Therefore, the region of the human alimentary tract that has both the largest population of bacteria and the greatest species diversity is the the colon.

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How do vaccines work if the pathogen in them is dead?

Answers

Vaccines work by stimulating the immune system to recognize and defend against specific pathogens, such as viruses or bacteria, that cause diseases.

How vaccines work

There are different types of vaccines, including those that contain dead or inactivated pathogens.

When a vaccine contains dead or inactivated pathogens, it means that the pathogens have been rendered non-functional or unable to cause disease. However, they still retain their antigenic properties, which means they can trigger an immune response.

When the dead or inactivated pathogens are introduced into the body through vaccination, the immune system recognizes them as foreign invaders.

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