define what an intron and exon is

Answers

Answer 1
A Intron is a segment of a DNA or RNA molecule which does not code for proteins and interrupts the sequence of genes. A exon is An exon is any part of a gene that will encode a part of the final mature RNA produced by that gene after introns have been removed by RNA splicing. Hope this helped:)

Related Questions

What is the term for the absolute worst type of inflation, where prices skyrocket out of control and a nation's economy becomes at risk of collapse?

Answers

Answer:

Hyperinflation is a term to describe rapid, excessive, and out-of-control general price increases in an economy.

Explanation:

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What will happen to a plant cell placed in distilled water?
The cell will become flaccid due to the cell membrane.
The cell will become turgid due to the cell wall.
The cell will lysis due to the cell membrane.
The cell will burst due to the cell wall.

Answers

Answer:

the cell will become turgid due to tge cell wall

Explanation:

when a plant cell is placed in distilled water the water will move in the solution inside the cell is hypertonic to the distilled water serrounding the cell but it will not burst it producr turgor pressure keeping the plant upright

if a plant cell is placed in distilled water, and distilled water has a very low concentration of solutes the cell will become turgid due to the cell wall, hence option B is correct.

How distilled water affect the plant cell?

This is because distilled water has a very low concentration of solutes and a high concentration of solvent, making it a hypotonic solution in comparison to the intracellular environment.

To put it another way, we can say that the solute concentration of When a plant cell is placed in distilled water, it becomes turgid.

This is due to the fact that it osmotically absorbs water from the hypotonic distilled water, causing the cytoplasm of the plant cell to enlarge and firmly press up against the cell wall.

Therefore, distilled water has a very low concentration of solutes, so cells will become turgid.

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Rinderpest (a virus) has high mortality in wildebeest (a kind of herbivore), especially in young animals. From the early 1960s, after the elimination of a virus called rinderpest, the wildebeest population has increased dramatically from 1958 to 1978. The elimination of rinderpest impacted the wildebeest population. What type of factor is rinderpest

Answers

Answer:

density-dependent, top-down factor

Explanation:

In biology, limiting factors are resources and other conditions in the environment whose presence/availability limit the population growth rate. Density-dependent factors refer to the conditions whose effects on the size/growth of the population vary depending on the population density. Some examples of density-dependent factors include diseases, competition, and predation, etc. These factors can exhibit a positive or negative correlation with the population size. Moreover, bottom-up population control (species limitation by resources) refers to limitations placed by resources allowing growth (e.g.,  food source or habitat), while top-down population control (limitation by enemies), refers to limitations placed by factors that control the death rate in the population (e.g., predation or diseases).

What did fungi diverge from?

Answers

Hopes this helps:

Answer: In 1998 scientists discovered that fungi split from animals about 1.538 billion years ago, whereas plants split from animals about 1.547 billion years ago. This means fungi split from animals 9 million years after plants did, in which case fungi are actually more closely related to animals than to plants.

Have a great day.

what is angiosperm in plant

Answers

Answer: a plant that has flowers and produces seeds enclosed within a carpel. The angiosperms are a large group and include herbaceous plants, shrubs, grasses, and most trees.

Explanation:

9. If the Earth and the Moon were on the same orbital plane, how often would a lunar eclipse
occur?
A. Once a month at the First Quarter phase.
B. Once a month at the full Moon phase.
C. Once a month at the New Moon phase.
D. Once a month at the Third Quarter phase.

Answers

Answer:

.B

Explanation:

once at the full moon phase

Which statment describes the relationship
between the reactants of photosynthesis
and the products of cellular respiration?
A:Cellular respiration and photosynthesis are
unrelated
B:The reactants of cellular respiration are the
reactants of photosynthesis
C:The products of cellular respiration serve as
the reactants of photosynthesis
D:The products of cellular respiration are the
products of photosynthesis

Answers

Answer:

the answer is c. the product of cellular respiration serve as the reactants of photosynthesis

What is Climate Change?


Explain your answer.

Answers

What is Climate Change?

Climate change is a change in the usual weather found in a place.

How it helps us:

Studying the climate helps us predict how much rain the next winter might bring, or how far sea levels will rise due to warmer sea temperatures. ... We can also see which regions are most likely to be affected by extreme weather, or which wildlife species are threatened by climate change.

How it works:

As the earth's atmosphere heats up, it collects, retains, and drops more water, changing weather patterns and making wet areas wetter and dry areas drier. Higher temperatures worsen and increase the frequency of many types of disasters, including storms, floods, heat waves, and droughts.

How it affects us:

Human health is vulnerable to climate change. The changing environment is expected to cause more heat stress, an increase in waterborne diseases, poor air quality, and diseases transmitted by insects and rodents. Extreme weather events can compound many of these health threats.

A _____ is the part of the environment in which an organism lives.

Answers

Answer: habitat

Explanation:

It is the only one that makes sense

True or False: Purine is connected to pyrimidine using oxygen bonds.​

Answers

Answer:

False

Explanation:

In DNA double helix molecule, there are four types of nitrogenous bases: adenine, guanine, cytosine and thymine. Purines (i.e., adenine, guanine) and pyrimidines (i.e., cytosine and thymine) hold DNA strands together via hydrogen bonds. In base pairing, guanine always pairs with cytosine through 3 hydrogen bonds, while adenine always pairs with thymine by 2 hydrogen bonds. Hydrogen bonds are a type of dipole–dipole interaction where a hydrogen atom is covalently bonded to a very electronegative atom (e.g., Nitrogen or Oxygen).

the fertilization of ovules from plant Q by pollen from plant R results in the productions of seeds. What percent of the genes in each offspring's chloroplasts wioll have been inherited from plant R

Answers

Answer:

The correct answer is - zero or 0%.

Explanation:

The fertilization in flowering plants takes place by fusing the pollen of one plant or flower with the ovum of another plant or flower of the same species normally and form a zygote. The zygote gets an equal amount of genetic material from both parent plants by the process f exchange of the genetic material.

The ovum or the egg cell of the plant is considered as the mother and the mother is responsible for the chloroplast And mitochondria of the progeny so in this case, the ovum and egg cell comes from the only plant Q thus, the percentage of chloroplast genes provided via Plant R is 0%.

Plz help me well mark brainliest if correct!!

Answers

Answer:

A

Explanation:

it causes temperatures to rise

Answer:

the answer is all of the above

Explanation:

these are all consequences of climate change

Please help I’ll mark you as brainliest if correct! #2

Answers

Answer:

Tt

Explanation:

Hello. I believe that you are only referring to question 2, since question 3 does not present all the answer options. As such, the offspring of a cross between a tall pea plant (TT) and a low pea plant (tt) would be completely "Tt."

To achieve this result, you must make a Punnett Square, which is a frame that allows you to combine the alleles of the parents in a cross to project the alleles of the offspring.

Alleles are those characterized by the letters associated with characteristics. As you saw in the question above, tall pea plants have "TT" alleles that are dominant alleles, while low pea plants have "tt" alleles that are recessive alleles. In this case, to use Punnett Square, you must put the alleles of one parent in the first row and the allele of the other parent in the first column. Then just combine each allele, as shown below:

    T    T

t    Tt   Tt

t    Tt   Tt

As you can see all the offspring will have the "Tt" alleles. This means that the entire offspring will be tall pea plants. This is because the recessive allele "t", which is related to pea plants, can only be expressed in the presence of another recessive allele. However, the dominant "T" allele, which is associated with tall pea plants, can be expressed in any situation.

How did the development of sexual reproduction affect evolutionary change?

Answers

500 million for the first picture and for the text i guess it evolved physical reproductive body cells and parts that makes sexual reproduction change as itself as well as birth due to not only human nature but man made things as well, example: hospitals, medicine, chemicals, etc.

I’m struggling with this practice problem help

Answers

Answer:

it think it C ^^^^^^^^^^^^

What hormones stimulate the cycle of egg or sperm production?

Answers

Answer: The main reproductive hormones are estrogen and testosterone. Once a girl enters puberty, estrogen matures the eggs in the ovaries. These are then released at regular intervals during the menstrual cycle. Testosterone stimulates the production of sperm in men.

Explanation:

Why is global warning considered a controversial issue?

Answers

answer: The global warming controversy concerns the public debate over whether global warming is occurring, how much has occurred in modern times, what has caused it, what its effects will be, whether any action can or should be taken to curb it, and if so what that action should be. In the scientific literature, there is a strong consensus that global surface temperatures have increased in recent decades and that the trend is caused by human-induced emissions of greenhouse gases.[1][2][3][4][5][6] No scientific body of national or international standing disagrees with this view,[7] though a few organizations with members in extractive industries hold non-committal positions,[8] and some have attempted to convince the public that climate change is not happening, or if the climate is changing it is not because of human influence,[9] attempting to sow doubt in the scientific consensus.

Which of the following is true about the coasts of North and South America? O A. Little industry is located along the coasts, B. There are few cities and the population is sparse. O c. A majority of the population is located there. D. People go to the coasts only when on vacation,​

Answers

Answer:

The correct answer is C. In North and South America, a majority of the population is located on the coasts.

Explanation:

Historically, the vast majority of civilizations have sought to establish their urban centers around bodies of water, be they rivers or seas, that allow them a rapid expansion outward as well as channels through which to channel trade. Thus, it can be seen how throughout the world and especially the American continent, large cities and population centers are located primarily on the coasts. Examples of this situation are Vancouver in Canada, New York and Los Angeles in the United States, Rio de Janeiro in Brazil or Buenos Aires in Argentina.

If having long fur helps a guinea pig survive, what
would you expect to see change in the population
as it evolves?
DONE

Answers

The population would increase, since they live longer and more can mate and reproduce.

In a population with long fur, there will be more guinea pigs than short fur in the given scenario.

What is trait?

A trait, as it relates to genetics, is a unique feature of an individual.

If having long fur helps a guinea pig survive, we can expect the long-furred trait to become more common in the population as it evolves.

This is because guinea pigs with long fur would have an advantage in colder environments, allowing them to retain body heat more effectively and survive longer.

As a result, longer-furred guinea pigs are more likely to survive and reproduce, passing on their long-furred trait to their offspring.

As this process continues over many generations, the proportion of guinea pigs with long fur in the population will increase, while the proportion with short fur will decrease.

Thus, this can be expected to see change in the population as it evolves.

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Can you guys help me

Answers

survival of the fittest

To become or stay physically fit, you should exercise and eat healthy.
O A. True
B. False

Answers

The anwers will be A true

1) Define biodiversity in your own words:

2) Why is biodiversity important?

Answers

Answer:

Explanation:

1.) Biodiversity is variety in an ecosystem and the living things inside of it. It means all the different species and creatures that live on the planet.

2.) Biodiversity is important because it provides vital ecosystem functions such as soil fertilization, nutrient recycling, pest and disease regulation, erosion control, and crop and tree pollination. Each species ina n ecosystem has a role to play.

An electrocardiogram (ECG) provides information about: Group of answer choices the pressure of blood in the heart chambers the rhythm of heart contractions the speed of blood flow through the blood vessels the amount of oxygen in the blood as it leaves the heart

Answers

Answer:

the rhythm of heart contractions.

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

An electrocardiogram (ECG) provides information about the rhythm of heart contractions.

Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.

5. During which month does LA experience the most precipitation? The least?

Answers

The wettest month (with the highest rainfall) is February (1.73"). The driest month (with the least rainfall) is June (0.04")

Los Angeles, United States of America. Los Angeles has dry periods in May, June, July, August and September. On average, January is the most rainy. On average, July has the least rainy days.

Please answer quickly

Answers

22. Species change over time
23. Observing

Changes in the plant species in an area cause changes to populations of animal species in the area too. Propose a reason why this occurs.



Give a simple answer please ​

Answers

Because animals need food dumas

Phenylketonuria causes a severe cognitive disability due to the inability to metabolize phenylalanine. It is an autosomal recessive disorder. About one in 12,000 newborns in Massachusetts are afflicted with the disease, skewed higher than the general US population due to more Irish-Americans. Assuming the gene is in Hardy-Weinberg equilibrium, the frequency of the carriers (heterozygotes) in Massachusetts would be calculated to be...

Answers

Answer:

The frequency of the carriers (heterozygotes) in Massachusetts is 0.018

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

The subject of a source can best be described as themain topic or area of concern.most important idea in the text.tendency to view something in a certain way.way the source wants people to feel or think.

Answers

Answer:

main topic or area of concern.

Explanation:

An information source can be defined as a system or medium through which informations, knowledge and ideas may be gotten and used by an individual. An information source can either be a primary or secondary source of information. The source options for informations are television, radio, web, newspapers, journals, magazines etc.

The four criteria used to evaluate source options are;

1. Accuracy: the user of this source of information should check if the data presented are accurate and credible. At this point, you should ensure that the informations provided are well researched and cited for verification.

2. Authority: you should endeavor to know who the author and publisher of the information source is. Also, it is important to know their qualifications.

3. Currency: it is necessary to know when the information source was created or produced by the author. Also, the user of this data should verify when it was published (in the case of a book) or if it requires an update (in the case of a website). Hence, the information source should be timely.

4. Objectivity: ensure that the source of information is unbiased, reliable, and should not only contain opinions but facts.

Basically, the subject of a source can best be described as the main topic or area of concern.

What advantage does a reliable web page have over published textbooks and
encyclopedias?
A) It is easily updated with the most recent information.

B) All web pages are peer reviewed.

C)Anyone can publish information on a web page.

D) Textbooks and encyclopedias are always more accurate than web pages.

Answers

A


Bkwcbkwfbicefebdwbdhdhd

Answer:

A

Explanation:

because it is easily updated with recent information

Why can't weeds take over the world? In other words, what limits the growth of populations?

Answers

Answer and Explanation:

Many elements can limit population growth. The main elements that can cause this are the lack of resources necessary for the life and development of living beings and the lack of space to be taken by them. In relation to weeds, these resources can be the availability of sun, amount of soil, soil fertility, availability of water and space. However, these plants are very resistant to the lack of these resources, and what most limits their growth is human interference.

Weeds are unfavorable to agriculture and other human activities. This makes humans fight the population growth of these plants using chemical products and even physical strategies. This interference prevents weeds from taking over the world.

Other Questions
nelson mandela role in anc 4+2y Passage 1 Called the "Golden State," California is the third largest state in the U.S. It is only smaller than Alaska and Texas. In 1849, thousands of people moved there to look for gold. They were called forty-niners in honor of the date they moved. The state was admitted to the Union in 1850. Today, it is known as the land of the giant redwoods. It has the highest population of any state in the nation and is our main farming state. It is also the home of Hollywood, the center of the movie and TV business. Passage 2 The first big gold strike in the U.S. started at Sutter's Mill in 1848. It was found near a river in California. Soon, thousands of people traveled to the state to find gold. Most people lived outside in rundown camps. They put up with harsh weather and wildlife. They did not mind because they thought they would find gold and get rich. These people were called forty-niners because they mostly moved in 1849. That year, about 80,000 people had moved west. By 1853, the number went up to 250,000. 4 Which statement best describes how passage 2 is different from passage 1? A. Passage 2 explains the meaning of "forty-niners." B. Passage 2 gives the nickname for the state. C. Passage 2 gives the date that California became a state. D. Passage 2 gives facts about how many people moved west. help me asap please I will mark brainliest and give extra points HELP!!!!! Im on a test rn. Which of the following is a sign that Ponyboy cares for Darry?? On day 2, Jonathan fills water bottles at a constant rate after 1 day of filling up a fewwater bottles. If B(m) = 3m + 12 represents this scenario where m represents the numberof minutes he spent filling up water bottles, how many minutes did he take to fill 552water bottles? Do u believe that you are beautiful/handsome? Yes or No? To promote their hair salon on social media, Lydia and Yoo-Hee invited their followers and clients to post photos of their own hair and nail designs. Rachel, the owner of a competing salon, hired a professional photographer to shoot photos of her son's best-looking clients just after they'd had their hair and nails done, which she then posted on social media. Which social media strategy do you think was more successful, and why yeah i really need help i have been at it for hours o btw u get brainly if u get it right You can file for chapter 7 bankruptcy every how many years please answer asap i will mark you as a brainly and 10 points Which of the following relations is a function? A. (5, 10), (-8, 2), (-1, 8), (-5, 10) B. (10, 5), (2, -8), (8, -1), (10, -5) C. (5, 10), (-8, 2), (-1, 8), (-1, -5) D. (-1, 10), (-8, 2), (-1, 8), (-8, -5) Expand and simplify2(2a - b) + 5(3a - 2b) pls quick What is one of the main reasons for the low literacy rate in india A triangle has an area of 300 square inches. The height of the triangle is 12.5 inches. What is thebase of the triangle?A:24 inchesB:48 inchesC:12 inchesD:30 inches What does the Emperor of Lilliput say Gulliver's punishment will be for treason?Gulliver will be put to death.Gulliver will be exiled.Gulliver will be blinded.Gulliver will be given a palace Give at least two examples of how African Americans fought for rights in Georgia. You are in the process of implementing a network access protection (NAP) infrastructure to increase your network's security. You are currently configuring the remediation network that non-compliant clients will connect to in order to become compliant. The remediation network needs to be isolated from the secure network. Which technology should you implement to accomplish this task if you like the color black and blue comment on this and ill give you something What figurative device does the author of this poem use to describe the sea in this poem? A) simile B) metaphor C) rhetoric D) personification