Please help!! What are Okazaki fragments?

Answers

Answer 1

Explanation:

Okazaki fragments are short sequences of DNA nucleotides (approximately 150 to 200 base pairs long in eukaryotes) which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication.[1] They were discovered in the 1960s by the Japanese molecular biologists Reiji and Tsuneko Okazaki, along with the help of some of their colleagues

During DNA replication, the double helix is unwound and the complementary strands are separated by the enzyme DNA helicase, creating what is known as the DNA replication fork. Following this fork, DNA primase and DNA polymerase begin to act in order to create a new complementary strand. Because these enzymes can only work in the 5’ to 3’ direction, the two unwound template strands are replicated in different ways.[2] One strand, the leading strand, undergoes a continuous replication process since its template strand has 3’ to 5’ directionality, allowing the polymerase assembling the leading strand to follow the replication fork without interruption. The lagging strand, however, cannot be created in a continuous fashion because its template strand has 5’ to 3’ directionality, which means the polymerase must work backwards from the replication fork. This causes periodic breaks in the process of creating the lagging strand. The primase and polymerase move in the opposite direction of the fork, so the enzymes must repeatedly stop and start again while the DNA helicase breaks the strands apart. Once the fragments are made, DNA ligase connects them into a single, continuous strand.[3] The entire replication process is considered "semi-discontinuous" since one of the new strands is formed continuously and the other is not.[4]

[2]During the 1960s, Reiji and Tsuneko Okazaki conducted experiments involving DNA replication in the bacterium Escherichia coli. Before this time, it was commonly thought that replication was a continuous process for both strands, but the discoveries involving E. coli led to a new model of replication. The scientists found there was a discontinuous replication process by pulse-labeling DNA and observing changes that pointed to non-contiguous replication.

Answer 2

Answer:

but actually hope is going to read all of this

Explanation:

lol


Related Questions

I created a list of reasons for a priest to work for me, but he still doesn't understand. Any advice?

Answers

Answer:

No

Explanation:

Do what you need


Just for the fun of it, someone walking along the shore in Beaufort, South
Carolina, throws a bottle with a message in it into the sea. Some time later,
someone in Perth, on the west coast of Australia, finds the bottle.
Referring to map, trace the path the bottle probably took! Make sure to
reference specific currents on your path.

Answers

The currents that carry the bottle from South Carolina to Peth are the West Wind Drift and the South Equatorial Current.

According to the information provided by the map, it can be inferred that the bottle that is thrown into the sea in South Carolina, USA and arrived in Perth, Australia took the following route:

It traveled down the Atlantic Ocean from the United States to the West Wind Drift current. Once there, it is transported from the west to the east, passing through the lower part of Africa and Asia until it reaches the Indian Ocean. When it reaches the Indian Ocean it is carried by the South Equatorial Current with a northeast direction. In this direction it reaches the coast of Peth, Australia.

Learn more about ocean in: https://brainly.com/question/11803537

how is cytokinesis different in plant and animal cells

Answers

Answer:

The main difference between plant cell and animal cell cytokinesis is the formation of new cell wall surrounding the daughter cells. Plant cells form a cell plate between the two daughter cells. In animal cells, a cleavage furrow is formed between the two daughter cells.

What is a chronic disease?​

Answers

Answer:

A chronic condition is a human health condition or disease that is persistent or otherwise long-lasting in its effects or a disease that comes with time. The term chronic is often applied when the course of the disease lasts for more than three months.

Explanation:

A chronic disease is a disease which last for a very long time even the whole life time. Such diseases have a bad effect on our health and may lead to poor health. A person does not recover completely after suffering from a chronic disease.Chronic diseases lead to loss of weight or fatigue.Examples: elephantiasis, diabetes, cancer, etc.

Hope you could get an idea from here.

Doubt clarification - use comment section.

What is it called when water moves through pores in soil?

Answers

Answer:

percolation,

Explanation:

Movement of water into soil is called infiltration, and the downward movement of water within the soil is called percolation, permeability or hydraulic conductivity. ... Pore space. Spaces in soil, between the mineral and organic matter, that are filled with water or air.

Which characteristic of living organisms is similar to burning fuel in a car engine

Answers

Answer:

im sorry but there isnt engough information for me to answer this properly

Chemical energy, or in other words using an energy source to fuel us. Cars have gas, that’s what makes them “go”. We eat food, this is what makes us “go”.

BEST ANSWER GETS BRAINLIEST

What is a polar molecule?

Answers

Answer:

a polar molecule is a molecule that has a charge on one side of the molecule, that is not cancelled out.

Explanation:

i hope this helps you!

Answer: a molecule that has both positive and negative ions

Explanation: a water molecule has an oxygen element and 2 hydrogen elements the oxygen is a negative ion and the hydrogen ions are positive

Mercury is found in a food chain. Which organism would have the highest concentration?
a
A. Bacteria
O B. Shrimp
O C. Algae
O D. Shark

Answers

C. A shark would have the highest concentration

0
다.
II
2
3
5
101
1
Using the alleles A and a, what is the genotype of individual
a) 11-6
b) 1-4
11-7

Answers

Answer:

what is that supposed to be? maybe a pic of the question?

which organ uses the circulartory system to communicate with cell throughout the body and control the amount of sugar they have available

pancreas
liver
heart
kidney

Answers

Answer:

pancreas

Explanation:

its because the pancreas produces insulin which regulators the amount of sugar in the body

The pancreas since this releases insulin which is involved in regulating body sugar

1 generation of peas contains 20 individuals. 10 have the genotype YY and 10 have the genotype yy. In the following generation, 5 are YY, 10 are Yy and 5 are yy. Did this population deles evolve? a. Yes, the genotype frequencies changed from 1 generation to the next b. Yes, the allele frequencies changed from 1 generation to the next C. No, the genotype frequencies did not change from 1 generation to the next d. No, the allele frequencies did not change from 1 generation to the next​

Answers

Answer:

b.Yes,the allele frequencies changed from 1 generation to the next

PLS HELP! MULTIPLE CHOICE

Answers

Explanation:

HELPING CAN BE DONE WHEN THE QUESTION IS POSTED.

we can’t answer it without the question haha

escribe ONE way that the use of rodenticides affects the kit fox population AND explain how the size of the kit fox population is affected.

Answers

One way that the use of rodenticides affects the kit fox population will be a

reduction in the population.

Foxes are secondary or tertiary consumers which feeds on smaller animals

such as rodents in the ecosystem. The use of rodenticides will kill and

reduce the number of rodents available for food.

The reduction in the rodents means lesser source of food for the foxes and a

decrease in the population. The size of the kit fox population is affected

because a larger size being more affected than the ones with a smaller

size/population.

Read more on https://brainly.com/question/6107375

the larynx, trachea, bronchi, and bronchioles all make up the

Answers

Answer:

Lower Respiratory Tract

Explanation:

The lower respiratory tract or lower airway is derived from the developing foregut and consists of the trachea, bronchi (primary, secondary and tertiary), bronchioles (including terminal and respiratory), and lungs (including alveoli). It also sometimes includes the larynx, which we have done here. This is where gas exchange actually takes place.

Which type of cytoskeletal element is characterized as a hollow, rigid cylindrical tube with walls composed of tubulin subunits

Answers

Microtubule is the ans

Help pls!
Which of these describes a chemical property of a substance
O A: Wax’s Tendency to Melt at 37 degrees Celsius O B: Gold’s Tendency to stay shiny O C: Paper’s tendency to tear O D: Sugar’s tendency to dissolve in water

Answers

Answer:

A

Explanation:

Because

Which of the following best explains why meiosis results in greater genetic diversity than mitosis?

Answers

Answer:

Mitosis involves one division cycle and results in diploid daughter cells, while meiosis consists of two division cycles and results in haploid gametes.

I need help on 3 Factor that affects population thingy. I don’t understand anything :(.

Answers

Answer:

Population growth (I think because birth rates, death rates affect populations)

Dispersion: There are three types of population dispersion are uniform dispersion, random dispersion, and clumped dispersion.

example question: "Describe the types of population dispersion, with examples, and the factors that influence them."

(I'm using this as a example to explain dispersion)

(things that affect dispersion) - Water supply, climate, shape of the land, vegetation, soils and availability of natural resources. In uniform dispersion, individuals of a population are more or less evenly distributed for example, allelopathy plants. In random dispersion, individuals are distributed randomly in the ecosystem for example, dandelions plants. Clumped dispersion is when individuals in a population are clustered together for example, pine trees. (or any forest)

Explanation:

Birth rates are a major factor because it is a continuous way for a population to grow, if you have low birth rates and high morality (Death rates) a population wont be balanced and death would largely out number the morality rate and time span of a population. That being the older population dies quickly because there is no younger populations to help them. This can lead to extinction too. Immigration is a population or group moving to the current one, it impacts population because its a very large group of new species being introduced to the current one adding numbers. This can also be bad because some immigrated species could be invasive and kill or take over the current/native species.

Example:

Algae blooms can reduce the ability of fish and other aquatic life to find food.

What type of growth is shown in the graph?

A) Exponential growth

B) logistic growth

C) carrying capacity

D) growth rate

Answers

Answer:

A

Explanation:

Cause I know the soul never dies

I make the chrome-chrome fly

I'm a wave, Roll Tide

Bullets at your face, bow tie

My persona done got her tongue tied

I was taught that a legend never dies

When it's time gotta let the lead fly

'Cause I'm a war-war-war baby

Post-traumatic stress I know the war changed me

Had to bend back but they could never break me

Had to slide

We was hoppin' out in broad day

Serving fiends in the hallway

Promethazine 'til the morningggg

After siting in the bathtub for hours your fingers start to look like prunes due to the process of

Answers

Answer:Shrinking Blood vassels

Explanation:

_____ cannot be digested by human digestive enzymes. Group of answer choices Starch Fiber Maltose Glycogen

Answers

Answer: Fiber cannot be digested by human digestive enzymes.

Since the body can't break down fiber into sugar molecules, like most carbohydrates, it ends undigested.

What is the difference between emphysema and asthma?
Emphysema is an inflammation of the lungs, while asthma is a bacterial infection of the lungs.
Emphysema is the gradual destruction of the alveoli, while asthma is a sensitivity to irritants that causes the airway to constrict.
Emphysema is a sensitivity to irritants that causes the airway to constrict, while asthma is the gradual destruction of the alveoli.
Emphysema is a bacterial infection of the lungs, while asthma is an inflammation of the lungs.

Answers

Answer:

Asthma and COPD are both chronic lung diseases. COPD is mainly due to damage caused by smoking, while asthma is due to an inflammatory reaction. COPD is a progressive disease, while allergic reactions of asthma can be reversible.With asthma, the swelling is often triggered by something you're allergic to, like pollen or mold, or by physical activity. COPD is the name given to a group of lung diseases that include emphysema and chronic bronchitis. Emphysema happens when the tiny sacs in your lungs (called alveoli) are damaged.

Explanation:

MARK ME AS A BRAINLIST PLZ

Answer:

I think the person above was trying to say the correct answer was

B. Emphysema is the gradual destruction of the alveoli, while asthma is a sensitivity to irritants that causes the airway to constrict.

If your gonna answer a brainly question don't make it complicated, respectfully, we have no time for that with these quizzes. And we more appriciate just straight to the point.

Which rock is an example of a chemical sedimentary rock?
-
a: coal
b: iron ore
c: shale
d: sandstone

Answers

Answer:

I think none of them since so far lime stone is the most know example of chemical sedimentary rock.

Which Kingdom does not contain a cell wall?

help me pleasee

Answers

Answer:

Protista Protists

Explanation:

Protista. Protists are single-celled and usually move by cilia, flagella, or by amoeboid mechanisms. There is usually no cell wall, although some forms may have a cell wall.

in which part of cell are calcium ions usually found?

Answers

Answer:

The endoplasmic reticulum

Explanation:

becuase im smart

How do chemosynthetic organisms get energy? Some examples of organisms include colorless sulfur bacteria, iron bacteria, and giant tube worms

Answers

Answer:

The source of energy for chemosynthesis is energy liberated from a chemical reaction (the oxidation of an inorganic substance)

Explanation:

https://sciencing.com/source-energy-chemosynthesis-6681808.html

Which is produced around a wire when an electrical current is in the wire? magnetic field solenoid electron flow electromagnet
HURRY

Answers

Answer:

A MAGNETIC FIELD GO GO GO GO

Explanation:

F

Answer:

magnetic field

Explanation:

What is shown in the diagram?
(Refer attachment for diagram) ​

Answers

The diagram shows a Circuit as a result of the combination of cells

present in it.

What is a Circuit?

This is referred to a path in which electric current flows through. It is

divided into the following which include:

Open circuitClosed circuit

The diagram above depicts a closed circuit as there is no breakage in the

flow of current.

Read more about Circuit here https://brainly.com/question/2969220

15. The
results when pollutants trap radiant energy from the sun
resulting in a warming trend in the atmosphere.
A. greenhouse effect
B. acid rain
C. radioactivity
D. extinction

Answers

Answer:

A. greenhouse effect

Explanation:

The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. Climate change results from the shedding of gases like CO2 into the atmosphere where it can trap more heat.

What is the partially shaded outer region of shadow cast by the earth or moon called?

Answers

Answer:

Penumbra I believe

Penumbra - the shadow cast by the earth or moon over an area experiencing a partial eclipse.
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