Explain the two reasons why DNA changes

Answers

Answer 1

Answer:

1.) Mutation or outside effect

2.) The DNA copies itself

Explanation:

1.) Mutations can occur when a body is exposed to high amounts of radiation or other harmful chemicals, thus changing the DNA.

2.) In order for our bodies to grow, cells must divide and make new cells. Each time a cell makes new cells, the DNA has to copy itself for the new cell. This process is called “replication.”

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Answer 2
Reason number one DNA mutations. Sunlight ciggerate smoke and radiation can be causes as well

Related Questions

can someone help me put it in the right place?

Answers

Answer:

Sister chromatids on the top and Chromosomes on bottom

Answer:

sister chromatids on top

chromosomes on bottom

Explanation:

The ones on top are sister chromatids because they are conjoined by the centromere.

On bottom a strand of condensed chromatin fiber is represented which is called chromosome

Which statement accurately contrasts monoculture and polyculture? Monoculture requires that farmers spend more time harvesting crops than polyculture. Monoculture better imitates natural ecosystems than polyculture. Monoculture typically requires the use of more pesticides than polyculture. Monoculture better protects crops from diseases than polyculture.

Answers

Answer:

monoculture better protects crops from diseases than polyculture

Answer:

c

Explanation:

i did the question

what happens if you heat a mixture of iron fillings and sulphur strongly​

Answers

Answer:

Hope the above picture might help you :)

Answer:

when iron fillings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS) .

Explanation:

it is a new substance which has properties entirely different from fe and S. it shows the exothermic reaction of two elements, iron and sulphur to form the compound , iron sulphide

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Stem cells are cells that are undifferentiated. This means that stem cells have not yet developed _[blank]_.


protective cell membranes

a nuclear membrane

a full set of DNA

their certain functions

Answers

Answer:

their certain functions

Explanation:

the protective cell membranes are present in the stem cells, so are the nuclear membrane and the full set of DNA, but their certain functions are not yet developed because they are undifferentiated cells

Taxonomy is the science of

Answers

The answer will be Organisms

• How do balanced and unbalanced forces differ?
I
!49 POINTS!

Answers

Answer:

If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.

Explanation:

Answer:

If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.

Explanation:

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The monomer of a Nucleic Acid is a nucleotide. What are the 3 parts of a nucleotide?

Answers

Each nucleotide, in turn, is made up of a nitrogenous base, a pentose sugar, and a phosphate.

The image below represents part of what process? (4 points)
Mitosis
Meiosis
Conjugation
Binary fission

Answers

I believe it’s binary fission

Answer:

binary fission I believe

Explanation:

I just studied this like a month ago

what are some physical properties and chemical properties of an ice cream ?

Answers

chemical properties could be the smell and color, physical could include the shape of the cream and the textures

What controls an organism’s development and growth of body structures?

Answers

Answer:

Developmental genetics is the study of how genes control the growth and development of an organism throughout its life-cycle. Genes code for proteins, and proteins build bodies: a salmon fry hatching from an egg.


The bases in DNA pair by chemical interactions. How are the base pairs formed differently between the pairs?

A.Adenine and thymine form two hydrogen bonds, while cytosine and guanine form three hydrogen bonds.
B. Adenine and thymine form three hydrogen bonds, while cytosine and guanine form two hydrogen bonds.
C. Adenine and thymine form covalent bonds, while cytosine and guanine form hydrogen bonds.
D. Adenine and thymine form hydrogen bonds, while cytosine and guanine form covalent bonds.

Answers

Answer:

Explanation:

The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

The bases in DNA pair by chemical interactions is adenine and thymine form two hydrogen bonds, while cytosine and guanine form three hydrogen bonds.

What is the use of two strands?

The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Adenine and thymine form three hydrogen bonds, while cytosine and guanine form two hydrogen bonds. Adenine and thymine form covalent bonds, while cytosine and guanine form hydrogen bonds.

Adenine and thymine form two hydrogen bonds, while cytosine and guanine form three hydrogen bonds. Adenine and thymine form hydrogen bonds, while cytosine and guanine form covalent bonds.

Therefore, The bases in DNA pair by chemical interactions is adenine and thymine form two hydrogen bonds, while cytosine and guanine form three hydrogen bonds.

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Would a chameleon survive if its niche changes? ( does it have a broad or narrow niche? Explain)

Answers

Yes, it has a broad niche. Chameleons have evolved to be able to adapt to their environment with their coloring. As long as they have the food necessary to survive, they’d be more or less fine.

in parts of Central Asia.
Using water sources for irrigation purposes has caused
A. floods
B. droughts
C. corrosion
D. desertification

Answers

Your answer would be D, desertification.

Answer:

it is d

Explanation:

"How does of DNA determine what you look like and how your body work?"

Answers

Answer:

because genes make up the infrastructure of your body, but at the same time so does your DNA. With a mix of your parents genes and your own personal DNA, a custom made human is made.

Explanation:

penus

what do oceanographers use echo-sounding devices to study?

Answers

Echo sounding is a type of sonar used to determine the depth of water by transmitting sound waves into water. ... Echo sounding can also refer to hydroacoustic "echo sounders" defined as active sound in water (sonar) used to study fish.

Echo-sounding device are used by the oceanographers to study the distance and depth of the water to know how fast the sound waves travel.

What is an echo-sounding device?

Echo sounding is the measure of the depths using sound waves. Echo- sounders use different frequencies of sound to find out the different things present in the seafloor. Scientists typically use echo-sounders which transmit sound at the frequency of 12 kiloHertz (kHz) to determine how far down the seafloor depth lies.

The sound waves through the device travels down through the water column until they hit the seafloor where they are reflected back up to the echo-sounder. By recording the time it takes for the sound to travel down to the seafloor level and back again, it is possible to calculate the depth of the water as we know how fast the sound travels.

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#7 A cuckoo bird lays its eggs in a warbler bird's nest. Once hatched, the cuckoo chicks displace the warbler chicks, tricking the parent warbler into caring for them over their own young. What type of ecological interaction does the cuckoo have with the warbler?



a. Commensalism


b. Competition


c. Mutualism


d. Parasitism

Answers

Answer:

Parasitism

Explanation:

Parasitism is a kind of interaction between organisms in which only one organism gains from the interaction. Usually one organism gains at the expense of the other organism.

In this case, the cuckoo bird gains at the expense of the warbler bird. The cuckoo bird lays its eggs in the warbler bird nest and also tricks the warbler bird to care for its young at the expense of the warbler bird's young.

This is parasitism.

Answer:

Parasitism

Explanation:

This type of relationship is the brood parasitism, a clear example of the parasite-host relationship. Instead of building their own nest for their living, the cuckoo will lay their eggs in what is known as reed warbler’s nest.  This leaves the warbler to take care of the egg together with her own children. When the eggs get hatched, the chick of the cuckoo will then ejects the young of the warbler from the next, which paves way for it to get all the food that its adopted mother will provide.

7. Carbohydrate foods, such as bread and French fries, contain which of the following
sources of energy?
A. glucose
B. starch
C. photosynthesis
D. cellular respiration

Answers

b starch because there fatty foods

How do these molecules compare to the original?

Answers

Answer:

they have the same genetic code the first ones

Explanation:

stages of cell dividing what r they

Answers

Answer:

Prophase, metaphase, anaphase, and telophase, and cytokinesis! (and interphase)

Explanation:

:)

Answer:

Prophase, metaphase, and telophase

Explanation:

I think :)

WILL GIVE BRAINLIEST!! Tamara puts a drop of red food dye into a glass of water. The dye makes swirls of
color in the water for several minutes. After ten minutes, the water is a
uniform,red color. Define diffusion. How does the concept of diffusion explain
her observations? At what point has the solution reached an equilibrium?

Answers

Answer:

the red consumed the water

Explanation:

Which of the following best represents a simple food chain?

Answers

Answer:

D

Explanation:

There's a difference between a food web and a food chain and all of these are food chains so that's an easy out.

Usually plants get eaten by ants then ants get eaten by those things with the long tougues, its quite simple when you look at it.

plz give brainliest

Option D (Plant → Herbivore → Carnivore) best represents a simple food chain.

What is a simple food chain?

"A simple food chain shows how each living thing gets its food. Some animals eat plants and some animals eat other animals."

What are the examples of simple food chain?

Each living thing is a part of multiple food chains – for example,

grass → grasshopper → frog → snake → eagle, and grass → deer → tiger.

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Interesting facts about bacteria and viruses 1st two answer gets the Brainliest. :)

Answers

Answer:

Explanation:

Bacteria are very tiny organisms that are present everywhere. Bacteria are single celled microorganisms . Their cell structure is unique and they don't have nucleus .

Interesting facts about bacteria :  

There are around 40 million bacteria in a gram of soil .Bacteria can survive in even very harsh conditions like deep areas of earth crust and in radioactive waste.Some bacteria have chemicals that can generate light . This process is called bio-luminescence.Many bacteria are present in human body.Bacteria also help the environment by treating sewage .                    

Viruses are very small particles that can infect animals and plants . Viruses are made up of genetic materials like DNA and are protected by a coating of protein.

Interesting facts about viruses :

Viruses are not classified in any of the five kingdoms of living organisms.Most of the viruses are so small that they cannot be seen even with an optical microscope.The first human virus discovered was yellow fever virus in 1901. A virus  that contains RNA instead of DNA is sometime called a retrovirus.The word virus comes from Latin word " virulentus " meaning                      " poisonous " .  

How do you read a data table , what information can you obtain from anylizing a data table

Answers

Answer: A table can be read from left to right or from top to bottom. If you read a table across the row, you read the information from left to right. You can get the information about the graph like what its about or information about a survey

Explanation:

It is a multi choice please help I will MARK BRAINLIEST

Answers

Answer:

A, B, C, E it's the answer

A,B,C, E is the answer

What is the process in which body of living organism break and develop into a new individual called?
1. fission
2. budding
3. regeneration
4. sporulation​

Answers

Answer:

2.

Explanation:

2 number ok this is the the answer

To which phylum would an animal with two body segments and jointed appendages belong to

Answers

Answer:

The scientific name for the honey bee is Apis mellifera. Identification of Insects and their Relatives: Insects are part of the phylum of animals called Arthropoda. All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages.

:)

Calculate by what percentage did the captive population of golden lion tamarins increase between 1970 and 2007?

Answers

Answer:

The captive population of golden lion tamarins increase between 1970 and 2007 is explained below in detail.

Explanation:

In the early 1970s, there were 91 lion tamarins in 27 distinctive zoos. Biologists created a strategy to improve the species' survival. The purpose was to improve the quantity and biogenetic variety of lion tamarins. As of 2007, there were 497 lion tamarins in 144 terrariums around the globe. Further, about 154 tamarins from the program have been re-presented to the wild since 1984. These tamarins are components of a strong wild population of more than 651.

Help me as soon as possible!

Answers

True. Good luck on c

Which process is responsible for the formation of the
bud?
A) fertilization
C) mitosis
B) recombination
D) meiosis

Answers

Answer:

Mitosis is the process which is responsible for the formation of the bud.

it should be mitosis but i’m not completely sure.

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JUST DO ME A FAVOR AND
GIVE ME RANDOM FACTS ABOUT SPERM WHALES PLZ

Answers

Answer:

Life Span: 70 years

Diet: Carnivore

The name Sperm Whale is short for Spermaceti Whale.

They have the longest intestinal system in the world, exceeding 984 feet (300m) in larger specimens.

They are the deepest diving mammal.

They migrate seasonally for feeding and breeding.

The Sperm Whale has the largest brain of any animal on Earth.

Explanation:

Other Questions
Quadratics Help!!! (Number 11) A gymnast would like to add a backflip to her floor routine to increase the difficulty and influence the judge's score in a favorable way. Our gymnast can insure she is able to perform this new movement by improving her: Leg power to increase jumping height Reaction time to the start signal Shoulder flexibility The density of water is 1.0 mgtrue or false ? Please helppp answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!! kevin has a part time jobhe earns 8 an hour he wants to buy a new bike costing 176how many hours does he need to work to earn enough to but it? What is an archetype? A. Architecture b. An old building c. A model for something d. A leader Please select the best answer from the choices provided A B C D If a car travels 400 meters in 20 seconds how fast is it going? factor: m^2 - 20m - 21 What is the area of the trapezoid?6 feet 8 feet 10 feet 1. 80 ft 22. 60 ft 23. 24 ft 24. 64 ft 2 Can someone help-? Like which one is the right answer Rachel spent $116 more than Samuel. If Rachel spent $999, then how much did Samuel spend? The following expression has 4 terms. 3x + 3y - 4ab True False Read this excerpt from "The World on Turtle's Back."The right-handed twin accused his brother of murdering their mother and their quarrels continued until it was time to bury their mother. With the help of their grandmother, they made her a grave. From her head grew the three sister plants, corn, beans, and squash. From her heart grew tobacco, which people still use to give thanks in ceremony. She is called our mother and the people dance and sing to her to make the plants grow.The excerpt suggests that the Iroquois believed thatsometimes good can come from tragedy.mothers should be worshipped as goddesses.corn, beans, and squash are essential for life.dancing and singing can make plants grow. can someone help me with this question thanks (: please help ASAP, just one or two sentences about each one A person hikes 4 miles in 2.5 hours. Find the unit rate in miles per hour.Then find the unit rate in hours per mile. LOTS OF POINTS HELPP ASAP PLEASE DONT GUESS MY GRADE IS DEPENDING ON IT PICK 2 what is the answer to 22 +10X= 3.12 divided 1/2I need help with this question Which of these numbers equals 30.75 -3? A. -92.25 B. -10.25 C. 10.25 D. 92.25