Which enzyme functions to prevent supercoiling of the DNA molecule during replication?
A)
Helicase
B)
Topoisomerase
C)
RNA polymerase
D)
DNA polymerase

Answers

Answer 1

Answer:

B

Explanation:


Related Questions

ASAP PLS HELP !!! Jfndndbrhdbdbr pls

Answers

100% because there is no dd making it not possible for them not to have dimples if dimples is dominant.

The genootype for a pea plant that is hom0zygous recessive for both height and pea color

a.TtYy
b. ttyy
c. TTYY
d. ttYY

Answers

Answer: b ttyy
Explanation I hope this helps

competition a type symbiotic relationship is where

Answers

Answer:

they r ecological, not symbiotic

Which spheres of Earth are directly influenced when human-caused air pollution leads to acid rain that dissolves limestone rocks?

atmosphere, cryosphere, geosphere
cryosphere, hydrosphere, biosphere
geosphere, atmosphere, hydrosphere
biosphere, atmosphere, cryosphere

Answers

Answer:

Atmosphere, Geosphere and Hydrosphere

Explanation:

The spheres of earth that get influenced by the human-caused air pollution which leads to acid rains that dissolves the limestone rocks are the atmosphere, geosphere, and the hydrosphere.

This is because the atmosphere contains polluted air which has the components of acid rain. The acid rains accumulate on the hydrosphere if not collected by the geosphere. The geosphere is the one that is drastically affected by the acid rains as the limestone rocks melt.

The atmosphere, geosphere, and hydrosphere are the three spheres of the planet that are affected by human-caused air pollution, which causes acid rains to dissolve limestone rocks.

What is Acid rain?

This is because acid rain is caused by contaminated air, which is present in the atmosphere. If the geosphere does not catch the acid rains, they build on the hydrosphere. As the limestone rocks melt as a result of the acid rains, the geosphere is the one that is most severely impacted.

Any type of precipitation with high concentrations of nitric and sulfuric acids is referred to as acid rain.

Snow, fog, and minuscule pieces of dry material that fall to Earth can likewise represent it. Acid rain typically has a pH between 4.2 and 4.4, whereas normal rain has a slightly acidic pH of 5.6.

Therefore, The atmosphere, geosphere, and hydrosphere are the three spheres of the planet that are affected by human-caused air pollution, which causes acid rains to dissolve limestone rocks.

To learn more about Earth, refer to the link:

https://brainly.com/question/31064851

#SPJ7

A researcher wants to study the impact of mutations on health. She focuses her work
on mutations associated with cancer. What would many of the mutations she studies
have in common?
A. They occur only in sex-cells.
B. They have no impact on cell function.
C. They cause the cell cycle to be unregulated.
D. The cause no change in amino acid sequence.

Answers

It is either A or C but I’m not 100% sure

Which is true regarding both mitosis
and meiosis?
A Both occur in only animal cells
B. All organisms go through both
mitosis and meiosis
C. They are both involved in cell division
D. None of the above
EuteckOut
bobof

Answers

Answer:

The correct answer is B. All organisms go through both mitosis and meiosis.

Explanation:

The same mechanisms of chromosomal segregation are at work in both mitosis and meiosis -- centrosomes, microtubules and motor proteins. Both mitosis and meiosis are multistage processes. The stages are interphase, prophase, metaphase, anaphase and telophase. The same general processes occur in each of these stages for mitosis and meiosis.

What is a mold? in fossils​

Answers

Body fossils include molds and casts. A mold is the imprint left by the shell on the rock that surrounded it. Molds of the underside of shell may be left on the surface of rock that formed when sand or mud filled the inside of the shell.

Which adaptation allows reptiles to live entirely on land check all that apply

Answers

Living on land means reptiles can't rely on absorbing oxygen through their skin like amphibians. All reptiles have lungs they use for breathing -- even those who live most of their lives near or in water, such as crocodiles, must surface to breathe. Lungs allow reptiles to venture far away from aquatic environments.

Reptiles' capacity to deposit amniotic eggs is the main trait that enables them to live exclusively on land. Amniotic eggs have a protective shell around them and include specific membranes that give the growing embryo a self-contained aquatic environment. Amniotic reproduction is the name given to this adaptation.

The amniotic egg has a number of crucial characteristics that let it thrive on land. These qualities consist of:

Shell: By minimizing water loss, the embryo's shell protects it physically and keeps it from desiccating (drying out).

Amnion: The amnion is a membrane that covers the embryo and holds amniotic fluid, which acts as a cushion and source of buoyancy.

The chorion is an additional membrane that encircles the amnion. By facilitating gas exchange, it allows carbon dioxide to leave and oxygen to enter the egg.

The allantois is a sac-like organ that aids in breathing and stores metabolic waste products from the developing embryo.

Egg yolk sac: The yolk sac is a source of proteins, lipids, and minerals that feed the growing embryo.

To know more about Amniotic reproduction:

https://brainly.com/question/14213726

#SPJ2

Which of the following is an example of olfactory sense?
Select one:
a. Salim predicted the lunch menu by touching the food
O b. Salim predict
the lunch menu just by the smell
of the food

c. Salim predicted the lunch menu by looking at the food
d d. None of these​

Answers

b. Salim predict

the lunch menu just by the smell

of the food

You are part of a small group of humans rocketed at “warp speed” to Planet X, without any books, weapons, or technology. Planet X has no ozone layer to protect its surface from cancer-causing ultraviolet radiation, but native plants and animals have evolved to live safely there. Below the surface, the planet has a network of underground tunnels, just a meter high, which are inhabited by carnivorous predators.

Write 3 paragraphs using the vocabulary words we discussed today in class about how descendants of the group of humans would look and act after evolving for 100,000 years on Planet X.

Answers

Is there optional cause it just so many words like a story?

Which component of weather results in stormy, cloudy weather?

A. High pressure
B. Low pressure
C. High temperature
D.Low temperature

Answers

Answer: B. Low pressure

Explanation: Low-pressure areas are places where the atmosphere is relatively thin. Winds blow inward towards these areas. This causes air to rise, producing clouds and condensation. Low-pressure areas tend to be well-organized storms.

Low pressure component of weather results in stormy, cloudy weather. Therefore, option (B) is correct.

What causes cloudy and stormy weather?

Low pressure systems in the atmosphere are often to blame for the weather patterns of cloudy and stormy conditions. When there is low pressure in an area, it causes the air pressure to rise, which can result in the development of clouds and the production of precipitation. Low pressure systems have a tendency to produce air that is unstable, which can lead to severe weather such as thunderstorms, hurricanes, and other forms of severe weather.

In contrast, high pressure systems almost always result in weather that is free of clouds and precipitation. This is because the air that surrounds the high pressure area is sinking and remaining relatively still. The formation of gloomy and stormy weather can also be influenced by a variety of other factors, including temperature, humidity, and the direction and speed of the wind.

Learn more about cloudy weather, here:

https://brainly.com/question/1408324

#SPJ2

Oxaloacetate is a key intermediate in the citric acid cycle, but it is also needed as a precursor for the synthesis of glucose during gluconeogenesis. Oxaloacetate is also fairly chemically unstable and undergoes spontaneous decarboxylation to pyruvate. Although oxaloacetate is not depleted by participation in the citric acid cycle, it can become depleted by other processes, necessitating its replenishment by various synthetic pathways. Use the Metabolic Map to identify enzymes that can replenish oxaloacetate or other citric acid cycle intermediates.

Answers

Answer:

Carboxylating pyruvate into oxaloacetate.

Explanation:

Replenishing oxaloacetate is done by carboxylating pyruvate into oxaloacetate through a process that is catalyzed by an enzyme called pyruvate carboxylase. This enzyme speed up the process and the replenishing of oxaloacetate occur quickly and the oxaloacetate is ready to function and participate in different chemical reactions.

Depleted oxaloacetate can be replenished by the carboxylation of pyruvate by the enzyme pyruvate carboxylase.

What is the citric acid cycle?

The citric acid cycle is a cycle which is important in aerobic respiration for the production of ATP.

One of the intermediates in the citric acid cycle is oxaloacetate.

Oxaloacetate combines with acetylcoA to form citric acid.

Depleted oxaloacetate can be replenished by the carboxylation of pyruvate by the enzyme pyruvate carboxylase.

Learn more about oxaloacetate at: https://brainly.com/question/8075492

Water availability poses the single greatest limitation to plant life in deserts. The amount of moisture that is available for plants to
use is determined by the unique features of the soil. Which term describes the capacity of the soil to allow fluids to pass through it?
A)
texture
B)
composition
C)
particle size
D)
permeability
Frology Interactions of living

Answers

I might be incorrect, but from what I remember it should be particle size

If the bird population is directly proportional to the average monthly temperature, which month would have the LOWEST temperature?

Question 1 options:

8- August


12-December


1- January


10 October

Answers

Answer:

December

Explanation:

If the bird population is directly proportional to the average monthly temperature, 12 december would have the lowest temperature.

What is population?

The population of an organism can't survive if it exceeds it's carrying capacity. If animal population increases the population that eat that animal might also increase

The causes that affect population growth animals that if there are more plants than usual in area, populations of animals that eat that plant may increase. If animal population increases the population that eat that animal might also increase.

The effects of animals population can be dangerous and when population exceed the carrying capacity of their environment, animal suffer of malnutrition and disease. When predators became scarce due to over population, the weekar species of animal start or die in other ways .

Therefore, If the bird population is directly proportional to the average monthly temperature, 12 december would have the lowest temperature.

Learn more about population here:

https://brainly.com/question/27779235

#SPJ2

Which is NOT an example of a fossl fuel
O Coal
O Oll
O Water
O Natural gas
Please help ASAP

Answers

the correct answer is water

Please help me

What is the advantage of porous bones in birds?
A. their holes assist in ridding the bird of wastes
B. their holes help keep the feathers intact
C. they are lighter, which helps with flight
D. they are lighter, which makes the bird need less food

Answers

Answer:

C. But see the answer under C. Apparently C is the accepted answer.

Explanation:

A. Not A.I don't think that's a problem for gulls especially on beaches.

B. Not B.  Their feather do not look like they need much help in keeping their feathers attached when in flight.

C. This is not really the answer, but it is the best answer of these 4. The actual answer is that the bones are porous for better air intake which provides more oxygen and hence they are better able to fly.

D. Not D. Food has nothing to do with the problem. Birds get an adequate amount of food without their wings being porous. See the answer for C.

Answer:

C. they are lighter, which helps with flight

Explanation:

Have a great day

Science question-
What are the two types of igneous?

A.Away from each other

B.Toward each other

C.They don’t move

Please help!!Have a good day!

Answers

Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies. Intrusive Igneous Rocks: Intrusive, or plutonic, igneous rock forms when magma is trapped deep inside the Earth.

A calorie is the amount of energy it takes raise the... of 1 mL of water by 1° C.


a) temperature
b) mass
c) volume
d) density

Answers

The answer is a temperature.

Were there any extinction events that occurred during the Cambrian period?? Help !!!

Answers

Yes. Oxygen crash led to Cambrian mass extinction


Help fast plz!!!
In a population of moths, wing color became darker over time. Which of the
following is the best evidence that the change in wing color was an evolutionary change?
a) The size of the moth population changed.
b) The average length of the moths' dark wings increased.
c) The number of eggs that females laid during each breeding season increased.
d) The frequencies of the alleles for dark wing color in the moth population
changed.

Answers

Answer:

d) The frequencies of the alleles for dark wing color in the moth population

changed.

Answer:

D

Explanation:

It would best describe how or what made the moths have more dark/darker collored wings overtime.

What information is necessary to understand how a virus produces the proteins it requires?

A. Whether the virus is in the lytic or lysogenic cycle
B. Whether the genome is made of RNA or DNA, whether the genome is double -stranded or single-stranded, and the sense of the genome
C. Whether the virus has a protein capsid
D. Whether the virus is helical, icosahedral, enveloped, or complex

Answers

Answer:

A is the answer i had same answer

The information is necessary to understand how a virus produces the proteins it requires is " whether the virus is in the lytic or lysogenic cycle".

What is virus ?

A virus would be an infectious submicroscopic creature that only reproduces inside of live cells. All living things, including plants, animals, even microbes like bacteria or archaea, are susceptible to virus infection.

What is lysogenic cycle?

The bacteriophage nucleic acid is integrated into the genome of the bacterial host during lysogeny or a spherical replicon forms in the bacterial cytoplasm.

Therefore, the information is necessary to understand how a virus produces the proteins it requires is " Whether the virus is in the lytic or lysogenic cycle".

To know more about virus and lysogenic cycle

https://brainly.com/question/1427968

#SPJ3

A student drew the following model.
Which phase is the best summary of the model

Answers

can you please provide a summary of the model? try posting this question again.

Which statement best describes how the carbon cycle and oxygen cycle are interrelated?
Group of answer choices

Plants release water during transpiration and carbon dioxide during photosynthesis

Plants use carbon dioxide and release oxygen during photosynthesis

Animals release water during respiration and carbon dioxide during transpiration

Animals use carbon dioxide and release oxygen during respiration

Answers

Plants use carbon dioxide and release oxygen during photosynthesis


In your own words, explain what the loss of trees in Uruk did to the agriculture and the population, and why this didn't happen in Anuradhapura

Answers

Answer:

Between approximately 3600 and 2600 BCE, the people of Uruk created the ... collected into a whole and living in a defined place with structures designated for a ... as one of the world's first cities (Uruk is its Akkadian name; its own people called it ... condemned to death, and Gilgamesh has to accept the loss of his friend

Explanation:

What genome rule does any prokaryotic life on earth commonly does not have?
a. small circular plasmid DNA
b. follows the central dogma DNA>RNA>proteins
c. has thymine in place of uracil on the RNA strand

Answers

Sorry I just need points

Which two events take place during human sexual reproduction?

A. Fragmentation

B. Spore formation

C. Fertilization

D. Gamete formation

Answers

Answer and Explanation:

C...

Gamete formation and fertilization takes place during human reproduction. Therefore, option (C) and (D) are correct.

What is sexual reproduction in humans?

Human fertilisation produces a human child via human reproduction, which is  reproduction. It usually entails activity between a sexually mature male and female person.

Copulation, or sexual intercourse, involves the insertion of the erect  into the vagina and the ejection of spermatozoa from the seminal fluid (semen) into the female genital tract. The ovum in the outer portion of the fallopian tube is subsequently fertilised by spermatozoa as they travel from the vagina via the uterus to the tube.

Learn more about reproduction, here:

https://brainly.com/question/14329745

#SPJ5

how can strong emotions influence the decisions you make.

Answers

Answer:

Strong emotions can make you do many things (sometimes things you don't want to). When someones is very angry they usually act out of anger and when someone is very sad they usuallu act out of sadness. It takes a strong minded person to be able to control their emotions whithout ever acting out.

Explanation:

what the other person said was 100% true

What type of material is often used to make Impressions of tool marks?

A. cement mix
B. dental paste
C. porcelain clay
D. plaster of Paris​

Answers

Explanation:

I would say/ a rubber base material is used for tool Mark's, I believe dental paste is used because it has the same material as described above....

Plz help ASAP

Marking Brianelist

Answers

Answer:

The answer is D

In what form is energy that is NOT used for life processes released from
living things?

A) Light energy
B) Sound energy
C) Thermal energy
D) Chemical energy

Answers

Answer:

a concave lens is exactly the opppostie with outer surfaces  curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.

Explanation:

Other Questions
A car traveling at 72 kilometers per hour. Find the cars speed in one meter per second? The physical process that leads to a reduction in the amount of arable land and crop output is __________. pls help will give brainliest TRUE OR FALSE 2. Somnambulism is a psychologically induced altered state of consciousness.3. Unconscious information processing occurs simultaneously on many paralleltracks.4. Your subconscious mind is just the "tip of the iceberg" according to psychologistslike Sigmund Freud. HELP PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS Will give brainiest to whoever answers correctly and I will make this question worth a lot of points what are the two main types of chemical bonds? PLEASE HELP, CORRECT ANSWER GET BRANiliest Juan and Carol were studying invertebrates in biology. They knew that segmented or earth worms preferred a dark, moist habitat. During this lab, they would be investigating the responses of organisms called planaria or Dugesia tigrina. These were simple flatworms that still had a one-way digestive system and a very simple nervous system. Juan and Carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. They shined a light on the dish. Next, they removed the paper and placed a small amount of chicken liver at one end of the dish. They added a few large salt crystals to the water. Finally, they added drops of hot water to the cool water in the petri dish. Their results can be seen in the data table. According to their experiment, all BUT one conclusion is valid. A) Planaria are a fresh-water organism only. B) Planaria are consumers and may be carnivores. C) Planaria have specialized cells to detect light intensity. D) Planaria have specialized cells that detect temperature change. answer and you get all my points plzzz Select all expressions that are equivalent to 3x 9A. -3(x+3)B. 3(x+3)C. 3(-x - 3)D. -3(x-3)E. 3(x-3) Which is the slowest reading rate?*2 points4 pages in 10 minutes5 pages in 13 minutes3 pages in 9 minutes7 pages in 20 minutes What's the significance of the Great Depression? type of government in which power is shared between the national govern-ment and the state governments. please help asap !!!!!! Which equation has one solution for x? Is ^ABC -^DEF explain Please help!!!!!!!!!! What is 2500+28566+23x2= ----- The correct name for P2O5 isabphosphorus(ll) oxidephosphorus(five) oxidediphosphorus oxidediphosphorus pentoxided How are mid-ocean ridges formed at divergent tectonic plates? The plates are moving in a zigzag formation, creating shallow earthquakes which forms a mid-ocean ridge. Mid-ocean ridges are not resulting features of ocean-to-ocean divergent boundary zones. The plates are moving towards each other, which causes the crust to buckle and push upwards or sideways which forms a mid-ocean ridge. The stretching lithosphere is pushed up as the plates move apart. The scale used on a map of Alaska indicates that a length of 3 inches represents a distance of 75 miles. What distance is represented by a length of 6 inch on the map?A. 25 milesB. 37.5 milesC. 150 miles D. 470 miles