what are three ways mutations can occur
I will give brainlest answer​

Answers

Answer 1
The three ways mutations can occur are
Mutations arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens (e.g., aflatoxin B1), also can cause mutations.
Answer 2
DNA is a long polymer of nucleotides (long strand of A,T,G,C in a defined sequences for any given gene.

The three types of mutations are 1. Substitution where a base is changed from its original to a new base (A—>G) 2 insertion where a nucleotide is added into the DNA. 3 Deletion where a nucleotide is deleted.

1 substitution 2. Insertion 3 deletion

Related Questions

I need help on this.

Answers

Answer:

Option B is correct answer hope it helps

Ima say friction foe dis

Asexual reproduction from a single parent is based on what?​

Answers

Answer:

The parent cell simply divides to form two daughter cells that are identical to the parent. Asexual reproduction produces offspring that are genetically identical to the parent, whereas sexual reproduction produces a similar, but genetically unique offspring.

Explanation:

hope you like my ans

Answer:

The parent cell simply divides to form two daughter cells that are identical to the parent. Asexual reproduction produces offspring that are genetically identical to the parent, whereas sexual reproduction produces a similar, but genetically unique offspring.

Explanation:

Goat's milk is easier to______
than cow's milk.

Answers

Answer:

milk

Explanation:

Answer:

digest is the answer

Explanation:

In fact, goats were the first animals in the world to be bred for milk. Goat's milk is highly digestible

true or false internal regulations refers to how organisms reproduce themselves? ​

Answers

Answer: False

Explanation: Defines the procedures to be followed for the administrative operation and organization of the institution, the implementation of rules, and the imposition of sanctions on those who violate or do not fully conform to relevant laws.

What are the two functions of the nucleus?

Answers

1) Store the cells DNA

2) Control cell division and cell growth

Answer:

i don't know go look it up hahahaha

Explanation:

yeet

4. Living things are sometimes called "carbon-based life forms." Do you think this is a good way to describe life? Explain your answer., help me asap ​

Answers

Answer:

Explanation:

Yes, for a couple of reasons.

1. Carbon connects easily with other carbons.

2. Carbon forms chemical that can change and connect with other carbons even in biology or especially in Biology. If you take a brown seen and plant it where it can get water and soil nutrients, to will come up as a green plant. Think about the chemistry that goes into that. Not only that, but there are mechanisms that tell the upper part of the plant that the roots can't supply any more growth. Isn't that something? All made from Carbon.

3. The human body is a mass of Carbon based chemicals and all cells there can have different functions. Amazing isn't it? I'm a fan of the diversity of our planet and its growth.

What type spore is produced by baisidiomycetes, deuteromycota, Zygomycota and ascomycota??

Answers

baisidiomycota: basidiospores

ascomycota: axcospores

Deurtermycota: conidia

zygomycota: sporangiospores

Put the following events in the correct order:

a. The mRNA leaves the nucleus and goes to a ribosome open choices for ranking.
b. The building blocks of proteins, are carried to the ribosome by tRNAsAmino acids.
c. Transcription of one DNA strand results in mRNA, which is a complementary copy of the information in the DNA.

Answers

Answer:

Explanation:

c. Transcription of one DNA strand results in mRNA, which is a complementary copy of the information in the DNA.

a. The mRNA leaves the nucleus and goes to a ribosome open choices for ranking.

b. The building blocks of proteins, are carried to the ribosome by tRNAsAmino acids.

The process of deoxyribonucleic acod starts with replication to transcription and translation.

Replication involves the formation of a complementary base from a old or template DNA Strand this then serve as a template for transcription.

transcription involves the coping of information on the DNA to an intermediate mRNA ( messanger ribonucleic acid) in the nucleus which then move from the nucleus to ribosome in the cytoplasm where translation occurs.

Translation is the conversion of the information on the mRNA to an amino acid with the help of enzyme transferse ribonucleic acid(tRNA).

Hence the arrangement is from C ---- A-----B.

What is surrounded by amniotic fluid?​

Answers

Answer:

Amniotic fluid is a clear, slightly yellowish liquid that surrounds the unborn baby (fetus) during pregnancy. It is contained in the amniotic sac.

Explanation:

hope this helps!

Oh gosh gosh oh yeah lol

which of these is an adaptation that helps fish survive in the bathyal and abyssal zones?
A dark-colored body
B
A yellow or orange body
с
Reduced sense of smell

Answers

A. Dark-colored body

In the abyssal and bathyal zones, it is so deep that light does not penetrate the water, so it is completely dark. A dark-colored body helps fish survive as it camouflages them.

I would appreciate brainliest, if not that's ok!

The Dark colored body

What is responsible
for the diversity of
life on Earth? (biodiversity)

Answers

Answer: The source of this diversity is evolution, the process of gradual change during which new species arise from older species.

Explanation: Good luck! :D

Describe how plants and animals each contribute to the survival of the other. (This type of cooperative relationship is called interdependence.)

Answers

Answer:

Plants produce oxygen which is used by animals in the process of cellular respiration, while animals produce carbon dioxide which is required for plants to make the photosynthesis process

Explanation:

In biology, interdependence can be defined as a mutual dependence relationship among two (or more) taxonomic groups. Animals and plants are cooperatively interdependent because they mutually need each other for different essential aspects of life such as food, respiration, refuge, protection, propagation, etc. For example, plants produce oxygen which is used by animals for cellular respiration (obtaining energy from this process), since most animals are aerobic organisms. Similarly, animals release carbon dioxide (CO2) when they breathe out, and CO2 is used by plants to perform photosynthesis (i.e., to produce energy and carbohydrates from this process).

Describe the basic histological (tissue) structure of the mucosa layer in the alimentary canal. Identify the unique features of the mucosa in the stomach and the duodenum, and explain how this uniqueness determines the function of the stomach and the duodenum.

Answers

Answer: The basic tissue structure of the mucosa layer of the alimentary canal consists of:

--> mucous membrane

--> lamina propria

--> muscularis mucosa

Explanation:

The MUCOUS MEMBRANE forms the innermost layer of the alimentary canals which includes the stomach and the duodenum (small intestine) . It's major functions is protection, secretions and absorption. The type of mucous membrane found in the stomach and duodenum is the Columnar epithelial cells. Not numerous gastric glands are situated below the surface in the mucous membrane of the stomach. They consist of specialised cells that secrete gastric juice that aids in the digestion of food. While the duodenal mucosa consists of mucous producing goblet cells. These cells produce a viscous, alkaline mucus that protects against the acidic gastric juices and pepsin. The folding of these mucosal cells (microvilli) provides a large surface area to optimize nutrient absorption.

The LAMINA PROPRIA: This layer separates the mucous membrane and the muscularis mucosa. It is made up of connective tissues which supports the blood vessels that nourishes the inner epithelial layer. In both the stomach and duodenum, digested nutrients are absorbed into the capillaries.

MUSCULARIS MUCOSA: This is made up of thin layer of smooth involuntary muscles. The contraction and relaxation of these muscle layers occurs in waves, which push the contents of the tract onwards. This type of contraction is called peristalsis which occurs in the duodenum. While in the stomach, these muscles allows for the churning motion characteristic of gastric activities.

Vincent is considering buying a creatine supplement after he saw a variety of these ergogenic aids advertised in a fitness magazine. Which of
the following is a common deceptive marketing tactic that he should watch out for?

A. an offer for a free mail-order anabolic assessment

B. a recommendation to assess body composition through underwater weighing
C.evidence about creatine's effect on resistance exercise and sprinting
D. a warning about creatine's short-term side effects

Answers

Answer:

A

Explanation:

the answer to this question is A

For considering buying a creatine supplement after he saw a variety of these ergogenic aids advertised in a fitness magazine here the exceptional things should be left out and one should focus on his own body. The correct answer is option A.

What is anabolic reaction ?

It is defined as the sum of all the reactions that are taking place inside the body that are dealing with the formation of products in itself.

The marketing tactic that is dealing with the free of cost along with that winning customers' trust and the response of the customers in order to prove trust and faith in the product thus here in this process the person should opt totally for an offer for a free mail-order anabolic assessment.

Giving any kind of scientific information about the product would lead to certain problems and the issues in claiming any kind kind of medical knowledge thus this is the helpful option for this.

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Explore
Direction: From the information that you read, answer the following question
with Yes or No. Write the answer in your journal.
1. Human actions affect estuaries and intertidal zones.
2. Adding soil waste or liquid pollution keeps the estuary and intertidal zone
safe.
3. You should let your local council know if you see something that could be
a risk for an estuary and intertidal zone,
4. Planting trees helps stop soil erosion and trap sediment and nutrient run-
off into the estuary.
5. Intertidal zone is not an important indicator for climate change.​

Answers

Answer:

1. Yes

2. No

3. Yes

4. Yes

5. No

Explanation:

Human actions greatly affected estuaries and intertidal zones.  Addition of soil waste or liquid turns the estuary and intertidal zone un safe for plants and animals that lives there.  We should let our local council know if we see something that affect an estuary and intertidal zone in order to prevent it. Planting trees helps to prevent soil erosion and trap sediment and nutrient run- off into the estuary.  Intertidal zone is an important indicator for climate change because it is related to the climate.

if a gene is made up of 20% adenine, how much thymine, guanine, and cytosine will there be

Answers

Explanation:

  You have 20% of adenine. If you have 20% of adenine than you have 20% of thymine, because the amount of adenine and thymine is equal. 20% plus 20% is 40% of adennine and thymine. From 100% DNA bases subtract 40% and you will get 60%. Then divide this by 2 and you will get 30%. 30% of guanine and 30% of cytosine, because their amounts are equal in the DNA stand.

The results of gel electrophoresis are shown below, with four different strands of DNA

labeled

electrode

=

| | ||

T

Which strand of DNA is the shortest?

O A 3

Х

B. 1

O C. 4

OD. 2

Not B

Answers

Answer:

DNA with the shortest strand will travel longer than DNA with the longer strand. In electrophoresis, the electricity will cause the DNA to move from one side of the gel to the other side. Shorter DNA strand will have a lower resistance to move in that gel so it can move further.

Explanation:

DNA with the shortest strand will travel longer than DNA with the longer strand. In electrophoresis, the electricity will cause the DNA to move from one side of the gel to the other side. Shorter DNA strand will have a lower resistance to move in that gel so it can move further.

The smallest strand of DNA will move farther than the longest strand. DNA will travel from one side of the gel to the other during electrophoresis as a result of the voltage.

What is DNA?

A shorter DNA strand will pass through the gel with less resistance, allowing it to move farther.

The smallest strand of DNA will move farther than the longest strand. DNA will travel from one side of the gel to the other during electrophoresis as a result of the voltage.

A shorter DNA strand will pass through the gel with less resistance, allowing it to move farther.  The publication of On the Origin of Species in 1859, Darwin has typically eclipsed Wallace.

Therefore, The smallest strand of DNA will move farther than the longest strand. DNA will travel from one side of the gel to the other during electrophoresis as a result of the voltage.

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In which parent could chromosomal rearrangement have made an X chromosome with 2 fur color alleles?

Answers

Answer:

Mother

Explanation:

(see image below)

According to the given situation, the mutation needs 2 X chromosomes and only the mother has 2 X chromosomes whereas a father has X and Y chromosomes.

What are the 23 chromosome pairs?

Humans have 23 pairs of chromosomes, 22 pairs of numbered chromosomes, and 1 X and Y chromosome (father) and mother have (XX) chromosomes.

Each parent donates one chromosome to each pair so that offspring get half of their chromosomes from their mother and a half from their father.

Thus, the mother is an answer.

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Since its inception, the theory of evolution has been the subject of frequent debate. Those who oppose evolutionary theory often point to gaps in the
fossil record in an attempt to discredit the theory. Which statement would be the best counterargument as to why the fossil record can be relied upon to
support evolution?
The fossil record provides evidence that extinct species only fossilized during certain geologic eras.
The fossil record provides evidence that extinct species are genetically identical to current species.
The fossil record provides evidence of many different types of organisms, since most species fossilize well.
The fossil record provides evidence of many transitional organisms that show relationships between species

Answers

Answer:

There are lots of transitional organisms in the fossil record though it does take very specific and precise conditions for a fossil to be preserved, a deer that dies in a field will not end up in the fossil record so we are looking at a small sampling of the evidence (and a good thing too or there wouldn't be anywhere to walk with all the bones laying around)

Explanation:

Answer:

The fossil record provides evidence of many transitional organisms that show relationship between species.

Explanation:

took the quiz :)

+
Which fundamental force is being used in this type of
treatment?
- strong
-weak
-gravitational
-electromagnetic

Answers

Answer: Weak.

Explanation:

The complete question is:

Scientists use a substance called Iodine-131 to treat cancer. As Iodine-131 undergoes radioactive decay and emits beta particles, it kill cancer cells. Which fundamental force is being used in this type of treatment?

Well, here we have beta decay.

Beta-decay is when a beta particle (an electron or a positron) is emitted from an atomic nucleus (usually a neutron-rich nucleus). We know that beta decay is a consequence of the weak force or weak interaction (the force responsible for the radioactive decay of atoms)

Then the correct option is the second one, weak.

Answer:

(B) WEAK

Explanation:

(A) strong

(B) weak

(C) gravitational

(D) electromagnetic

Took test got it right 2021 edeg

sedimentary rocks are formed from weathering material that have been eroded and then deposited in layers. This process requires: a) temperature and time b) deposition and melting c) collection and transportation d) time and pressure​

Answers

Answer: B I think

Explanation:Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This sediment is often formed when weathering and erosion break down a rock into loose material in a source area.

Answer:

b

Explanation:

During which stage of development does a human learn self-care such a bathing, using the toilet, and brushing teeth?


puberty
infancy
early childhood
late childhood

Answers

Answer:

C. Early childhood

Explanation:

Answer:

early childhood

Explanation:

Which organ(s) makes hormones that are important for keeping a consistent level of sugar in the blood?
ovaries
hypothalamus
testes
pancreas

Answers

The correct answer is the pancreas

the ability to detect stimuli from the environment is called
A exitability
B conductivity
C contractility
D differentiation

Answers

Answer:

Sensation

Explanation:

Sensation refers to our ability to detect and sense the internal and external physical qualities of our environment. Our senses include both exteroception (stimuli that occur outside of our body) and interoception (stimuli occurring inside of our bodies).

The full set of DNA instructions in a cell is described as​

Answers

Answer:

a genome

Explanation:

An organism's complete set of DNA is called its genome.

help me....................​

Answers

mechanical weathering looks like the answer

The type of weathering seen in the pictures is mechanical weathering.

Weathering is the process by which rocks, minerals, and other geological materials are broken down and altered over time by various physical, chemical, and biological processes. It is a fundamental part of the Earth's surface dynamics and plays a significant role in shaping landscapes.

Mechanical weathering involves the physical breakdown of rocks into smaller fragments without changing their chemical composition. It increases the surface area of rocks, making them more susceptible to further weathering.

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Type B blood has type B markers on red blood cells, .......... antibodies in the plasma, and can donate blood to types........


The first select

anti-AB

anti-B

anti-A

anti-O



The second select

AB or O

B or AB

A or O

A or B



Answer and I will give you brainiliest

Answers

First select : Anti-B
Second select : B and AB

Answer:

Anti b

Explanation:


It’s the 3rd questions please help I don’t understand this

Answers

No flipping idea... I would help but-

Eric drops a 3.70 kg water balloon that falls a distance of 20.38 m off the top of a building. What is the velocity at the bottom?

Answers

Answer:

The velocity of the balloon at the bottom is 19.99 m/s.

Explanation:

Given;

mass of water balloon, m = 3.7 kg

height of fall, h = 20.38 m

The velocity of the balloon at the bottom is calculated from the law of conservation of energy;

[tex]K.E_{bottom} = P.E _{top}[/tex]

[tex]\frac{1}{2}mv^2 = mgh \\\\ v^2 = 2gh\\\\v= \sqrt{2gh} \\\\v = \sqrt{2\times 9.8 \times 20.38} \\\\v = 19.99 \ m/s[/tex]

Therefore, the velocity of the balloon at the bottom is 19.99 m/s.

Which of the following is not a characteristic of electrons

Answers

Answer:

i dont know what the following are buttt here are some Characteristics of electrons -

Electrons are negatively charged particles.

They revolve around the nucleus in various energy levels.

They can be excited to higher energy levels by absorbing energy.

Mass of electron is 1/2000 times of proton/neutron.

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