A group of scientists determines that a mitochondrial DNA sequence shared by two species has a constant mutation rate. The sequences of mitochondrial DNA for the two species are shown below. Species A: GACTGGGCATTA Species B: GACCGGACATTA Based on this information, which of the following best explains the difference in the DNA sequence between the two species? Species A and B probably share the most recent ancestor because they only differ by three mutations. Species A and B have fewer differences between DNA sequences means that fewer mutations occurred. Species A and B probably have distinct ancestors because they have many differences in mutations. Species A and B are closely related because they differ by five mutations in their DNA sequence.

Answers

Answer 1

Species A and B have fewer differences between DNA sequences means that fewer mutations occurred. It is likely due to sequence homo-logy.

Whta are mutations?

A mutation is any alteration in the nucleotide (DNA) sequence of the genome of a particular organism.

The linear order of nucleotides and their differences (mutations) can be used to infer homo-logy between two species.

In this case, there are only two different nucleotides in these sequences, thereby sequence homo-logy indicates a likely common origin.

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Answer 2

Answer: Species A and B have fewer differences between DNA sequences means that fewer mutations occurred.

Explanation:

Took the test and got it right


Related Questions

Why do invasive species
disrupt ecosystems?
A. They can outcompete native species.
B. They cannot be killed by any of the
organisms in the environment.
C. They enhance the environment they
оссиру.

Answers

Answer:

A. They can outcompete native species.

Explanation:

Remember that ALL species need an ecosystem they can easily adapt in to survive, especially invasive ones. Adaptation is a heritable trait that helps organisms adjust to new changes in their environment.

Invasive species can compete with native organisms for resources, cause extinctions, reduce biodiversity, and disrupt ecosystem processes. They can also threaten, or even prevent human use of the resources in the ecosystem.

In order for an invasive species to be successful in their new environment, they need to be able to reproduce and grow rapidly to take over quickly.

Hope this helps!

name the important trees of tropical monsoon forest​

Answers

Bamboo
teak
Sal
Myrobalan

The wooly mammoth and the modern-day elephant share a common ancestor. Mammoths were large mammals that lived in cold areas. They were protected by thick layers of fur. What adaptations enabled elephants to evolve and survive in today’s climate?
They don’t have fur to regulate their body temperature.
They have bigger ears to prevent overheating.
They are more aggressive.
They have a carnivorous diet.
They know how to swim.
Pick all the correct answers.

Answers

Answer:

The answer is

They don’t have fur to regulate their body temperature.

They have bigger ears to prevent overheating.

They know how to swim.

Explanation:

Elephants lost their fur because they live in warmer climates and instead have larger ears to regulate their body temperature. They are excellent swimmers too.

12+2 to the third power divided by 4x2-15

Answers

Answer:

-0.0025

Explanation:

12+2 is 14

to the third power means 14³

that is 2744

4×2-15= -7

2744÷ -7= -0.0025510204

approximate to the nearest four digits

-0.0025

Answer:

-5

Explanation:

12+2 to the third power is 20
20/4=5
5x2=10
10-15=-5

Which is NOT considered to be matter?
a
Leaves
b
Energy
Lake water
Air

Answers

Answer:

Energy

Explanation:

Matter is defined as anything that occupies space and has mass. All tangible substances, including living organisms, are made from matter. Energy is defined as the capacity to do work. Energy takes many forms, such as light, chemical or kinetic (the energy of motion).

Please mark me the brainliest!?!

Answer:

Energy

Explanation:

only because it is touchless, tasteless, etc. It also describes what other non-matters are.

Which animal is prey to an owl in the food web pictured here? green plant wild cat snake mouse
Please Hurry!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

The mouse.

Explanation:

Answer:

Last one (mouse)

Explanation:

why human beings are responsible for the loss of forest?​

Answers

We are chopping down trees at a rate that the Earth cannot handle. Or in easier words, pollution.

How specifically does crispr work to treat sickle cell anemia?.

Answers

Answer:

As sickle cell disease is caused by a genetic mutation, it is a perfect candidate for CRISPR-mediated gene therapy. Treating sickle cell anemia with CRISPR involves an ex vivo procedure known as gene-edited cell therapy, where hematopoietic stem cells are extracted from the patient, corrected, and then replaced.

Explanation:

One student filled two clean jars with hot water. Baking soda was added to water in both the Jars and stirred until no more baking soda dissolved in the water. Small
weights were tied to two ends of a thread and the ends were dipped into the two jars as shown below.

After two or three weeks the student observed a white solid material growing down from the middle of the thread between the two jars. The student's experiment demonstrates
that
A) Wmen water evaporates, it leaves solid minerals behind
B) When water is left undisturbed, it turns into solid minerals
C) when water reacts with baking soda, it freezes into solid minerals
D) When baking soda reacts with water, it converts gases into minerals

Answers

Answer:

A

Explanation:

Heated water will hold a higher amount of dissolved material than cooler water. As water evaporates the amount of dissolved material that can stay dissolved decreases. What cannot remain dissolved precipitates onto a point of nucleation. In this case the string.

Describe how the organisms in your cladogram are related through common ancestors.

Answers

Answer:

Describe how the organisms in your cladogram are related through common ancestors. Organisms c and d share a common ancestor, a and d and b and c 5. Label : The purple lines represent a characteristic change, or adaptation . ... The “parsimony score” calculates how many changes occur in a given cladogram.

Explanation:

A cladogram shows how species are related by descent from a common ancestor. A classification of organisms on the basis of such relationships is called a phylogenetic classification.

A phylogenetic classification involves organisms in a clade with their common ancestor.

How organisms are related in cladogram?

A cladogram consists of an organism being studied, lines, and nodes where those lines cross. The lines represent evolutionary time or a series of organisms that lead to the population.

A clade is a group of living organisms and the common ancestor they are derived from.

Therefore, the cladogram is related to common ancestors through their species.

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Which statement best describes an organ
A. diff types of tissue work together to carry out a function
B. This is the simplest level of organization of life
C. cells of one type work together to carry out a function
D. this is the most complex organization of life

Help this is due TODAY and i need a correct answer

Answers

Answer:

A, diff types of tissue working together to carry about a function

Answer:

A

Explanation:

organ, in biology, a group of tissues in a living organism that have been adapted to perform a specific function

As a cell grows, which microtubule-associated protein pulls the ER membrane outward, stretching it like a net

Answers

Answer:

Kinesin is correct

Explanation:

:)

For what are if channels responsible in cardiac autorhythmic cells?.

Answers

Answer:

The electrical signal that triggers heart contraction.

Explanation:

:)

Nucleic acids are biological polymers that are comprised of nucleotide monomers covalently bonded together.

The picture above shows two monomer units of a nucleic acid chain What are the components that make up each nucleotide
monomer?

A. Glucose, a phosphate group, and an amino acid.

B. Glucose, a phosphate group, and a nitrogenous base.

C. A five carbon sugar, a phosphate group, and a nitrogenous base.

Answers

Answer:

C is the correct answer

The components that make up each nucleotide monomer in the nucleic acid

in the image is as follows: a five carbon sugar, a phosphate group, and a nitrogenous base.

NUCLEIC ACIDS:

Nucleic acids are one of the biomolecules. They are polymeric molecules made up of monomeric units called nucleotides.

Several nucleotides come together to make up nucleic acid, which can either be DNA or RNA.

A nucleotide monomer is made up of three components namely: nitrogenous base (A, C, G, T), a pentose (5-carbon) sugar, and a phosphate group.

Therefore, the components that make up each nucleotide monomer in the nucleic acid in the image is as follows: a five carbon sugar, a phosphate group, and a nitrogenous base.

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How might the mimicry of one species by another aid in the survival of the mimic?

Answers

Answer: Typically, the eit is called mimicry when the mimic imitates a phenotype of a model which can be dangerous for a predator. For the mimic, mimicry has a pos- itive eect on the chance of survival.

Explanation: Because it gets confused.

Answer:

Both creatures will thrive.

Explanation:

Take the cheetah cub and honey badger for example. Cheetah cubs have a white stripe on the back to look like a honey badger which are very aggressive! This way, predators of cheetah cubs wont mess with them because they dont want to disturb a honey badger.

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What two chemicals are used to test for carbohydrates?

Answers

Answer:

Iodine and Sulfuric Acid.

Explanation:

During Molisch's test, Sulfuric Acid is used to judge whether or not a carbohydrate is present, and, if so, a purple ring will appear. In the iodine test, iodine is used to confirm starch is in the carbohydrate, and will alert you with a blue ring appearing.

Answer:

In the presence of starch, iodine turns a blue/black color. It is possible to distinguish starch from glucose (and other carbohydrates) using this iodine solution test. For example, if iodine is added to a peeled potato then it will turn black. Benedict's reagent can be used to test for glucose.

Explanation:

please helpp!!!
a worker who repairs farm buildings would be susceptible to which of the following combinations of hazards?

Answers

Answer: Defiantly D. Unclean conditions and muscle injuries.

Explanation: You just have to go into a barn to know how bad and dirty it is and I've been in a few;)

Answer:

Heat Exposure and Falls

Explanation:

Its right on Edge

list the different levels of biological organization from the largest to smallest and give an example of each

Answers

Answer:

1.Ecosystem

2.Cummunity

3.Atom

4.Organisms

5.Macromolecule

6.Organ system

7.Tissue

8.Subatomic

9. Particles

10.Organelles

11.Biomes

12.Cell

13.Biosphere

14.Molecule

15.Organ

Explanation:

Question: Which biome has the highest amount of biodiversity?

Answers

Answer:

Iquitos, Peru

Explanation:

Looking at the graphs, you can see that this region gives the most rain, and with background knowledge, you know that the rainforests are home to MANY different species. Sometimes, it's not all about what's there, but what you already know <3

what is development region?​

Answers

Development region is a designation for a territorial entity.

Development region is a designation for a territorial entity. It is used for: Development regions of Romania Development regions of Nepal

Which type of muscle is found in the wall of hollow organs?.

Answers

smooth muscle fibers.

Explain the importance of the enzyme topoisomerase in the replication of
DNA.

Answers

During DNA replication and transcription, DNA becomes overwound ahead of a replication fork. ... In order to prevent and correct these types of topological problems caused by the double helix, topoisomerases bind to DNA and cut the phosphate backbone of either one or both the DNA strands.
Topoisomerase plays an important maintenance role during DNA replication because this enzyme prevents the DNA double helix ahead of the replication fork from getting too tightly wound as the DNA is opened up

What is a protein that is the main component of the thick filaments in muscle fibers and is responsible for muscle contraction? actin myosin atp dna

Answers

The protein that is the main component of thick filament is myosin.

What is the function of myosin?

Myosin belongs to a superfamily of motor proteins that play roles in muscle contraction and in a wide spectrum of other motility processes in eukaryotes.

The prototype of a molecular motor is a protein that converts chemical energy in the form of ATP to mechanical energy, thus developing force and movement.

Thus, myosin is a thick filament.

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Answer:

The answer is A

Actin

Explanation:

Tried the answer above me and got it wrong. A is 100% right.

EDGE 2022

Good luck :)

Sickle cell anemia is caused by a mutation that changes one amino acid in hemoglobin. Describe how this change could affect the different levels of protein structure. *

Answers

Answer:

Explanation:

. And

What is paschal mystery

Answers

Answer:

The Paschal mystery is one of the central concepts of Catholic faith relating to the history of salvation.

Fungus is an example of a

A. producer.
B. decomposer.
C. recycler.​

Answers

Answer:

B

Explanation:

Dr. Smith performed an experiment to test how the temperature in which tulips are kept affects their growth. To do this, she planted groups of young tulip plants in four different areas and kept each environment at a different temperature. These temperatures were 10°C, 15°C, 20°C, and 25°C. After a month, Dr. Smith determined the average growth of the plants in each group. Dr. Smith's experiment showed that the tulip plants grew the most at 20°C and grew the least at 15°C. They didn't grow at all at 10°C. Use the drop-down menus in the table to select the values most likely recorded by Dr. Smith. Each value will be used only once. Temperature Average Growth 10°C 15°C 20°C 25°C

Answers

Temperature

Average Growth

10°C  

0 cm

15°C  

0.6 cm

20°C  

1.4 cm

25°C

1.2 cm

Dr. Smith's experiment showed that the tulip plants grew the most at 20°C and grew the least at 15°C is the Temperature Average Growth 10°C 15°C 20°C 25°C is 0 cm and 0.6 cm.

What are the temperature?

Temperature is the degree of hotness or coldness expressed in phrases of any of numerous scales, which include Fahrenheit and Celsius. Temperature shows the route wherein warmness power will spontaneously flow—i.e., from a warmer body (one at a better temperature) to a chillier body (one at a decrease temperature).

10 C- 0 cm

15 C- 0.6 cm

20 C- 1.4 cm

25 C- 1.2 cm.

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What factor causes a mudslide?

Answers

Disturbances in the inherent stability of a slope generate landslides. They may occur in conjunction with severe rainfall or as a result of droughts, earthquakes, or volcanic eruptions. Mudslides occur when water accumulates quickly in the ground, causing a rush of water-soaked rock, soil, and debris.

Answer:

Landslides are caused by disturbances in the natural stability of a slope. They can accompany heavy rains or follow droughts, earthquakes, or volcanic eruptions. Mudslides develop when water rapidly accumulates in the ground and results in a surge of water-saturated rock, earth, and debris.

Explanation:

____________% of Minnesota's water is clean. That means ____% of Minnesota's water isn't safe :(

Question 5 options:

40; 60


50; 50


60; 40


70; 30

Answers

Answer:

60; 40

Explanation:

According to fmr.org, 40% of Minnesota's water is polluted.

100-40=60

What are the different types of physical weathering??

Answers

Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart.
Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.
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