If new genetic variation in the experimental populations arose solely by spontaneous mutations, then the most effective process for subsequently increasing the prevalence of the beneficial mutations in the population over the course of generations is

Answers

Answer 1

Answer:

binary fission

Explanation:

Binary fission is the main type of reproduction of prokaryotic organisms. In binary fission, the prokaryotic cell first duplicates its DNA and then divides into two cells, each one receiving one complete DNA molecule. Since binary fission is a type of asexual reproduction, this process increases the prevalence of beneficial mutations in a bacterial population. Moreover, transduction refers to the process by which a virus transfers genetic information from one bacterium to another bacterium. Conjugation is also a sexual mode of transfer of DNA from a donor (F+) to a recipient (F−) bacterial cell by direct cell-to-cell contact. Finally, transformation refers to the transfer of genetic material by which bacteria take up exogenous DNA from the environment and integrate it in their genomes.


Related Questions

what are the two characteristics of Pine due to which it is not placed under sub division angiosperms​

Answers

Answer:

The angiosperms, or flowering plants, are the largest and most species-rich phylum of plants, with more than 250,000 species estimated.

Defining Characteristics

The term "angiosperm" derives from two Greek words: angeion, meaning "vessel," and sperma, meaning "seed." The angiosperms are those plants whose seeds develop within a surrounding layer of plant tissue, called the carpel, with seeds attached around the margins. This arrangement is easily seen by slicing into a tomato, for example. Collectively, carpels together with the style and stigma are termed the ovary, and these plus associated structures develop into the mature

Explanation:

why should we drink 6 to 8 glasses of water everyday even water does not provide any energy? pls answer in short ​

Answers

Answer:

√7-2√10x/√6-√2/1-√3-5/√5

A poison placed on the tips of darts by natives of the Amazon rainforest paralyzes prey such as small mammals. Which of the prey's cells are most likely affected by the poison?
muscle cells
epithelial cells
red blood cells
white blood cells

Answers

Answer:

Muscle cells

Explanation:

If they are paralyzed it stops use of the muscles. like... just read it bro

The cells in the prey that are most likely influenced by the poison present in the darts exist the muscle cells.

What are muscle cells?

A muscle cell exists also known as a myocyte when directed to either a cardiac muscle cell or a smooth muscle cell as these exist both small cells. A skeletal muscle cell exists long and threadlike with many nuclei and is named a muscle fiber. Muscle cells originate from embryonic precursor cells named myoblasts.

The muscle cells exist as a specialized kind of cell (one of the four tissues) that can contract to exert action.

These cells (muscle cells) can be paralyzed by utilizing various inhibitors of movement such as poisons.

In conclusion, the cells in the prey that exist most likely affected by the poison present in the darts exist the muscle cells.

The cells in the prey that exist most likely influenced by the poison present in the darts exist the muscle cells.

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An atom with 17 protons 17 neutrons and 17 electrons has a net charge of what

Answers

Answer:

0

Explanation:

Since we have the same amount of protons and electrons, our net charge is 0.

Hope this helped,

~cloud

Biological method involves all the following except

(a) data collection (b) observation (c) proportion (d) experiment​

Answers

Its c you are very welcome

pls help I will mark brainlest​

Answers

Answer:

Renewable resources can be replaced by natural processes as quickly as humans use them. Examples include sunlight and wind. Nonrenewable resources exist in fixed amounts. They can be used up.

I Hope this will help you if not so advance sorry :)

Renewable can be used again and again like sunlight but non-renewable once are used are gone forever

What climate zone includes much of North America, Europe, and Asia?

A. Temperate zone
B. Polar zone
C. Pacific zone
D.Tropical zone

Answers

Polar zone includes much of North America Europe and Asia

how do you think the weight and the lift should not be of the same magnitude​

Answers

Answer:

There is because one is short and one is long

Which of the following is a start codon?
A.UAG

B.AUG

C.UAA

D.UGA

Answers

Answer:

AUG

Explanation:

you can use a codon chart to help or double check.

B) you can use a software to check

Động vật nào sau đây máu đu nuôi cơ thể không pha trộn giữa máu giàu o2 và máu giàu co2

Answers

Answer:  Tôi không thể giúp anh vì anh chưa bao giờ đặt tên cho bất kỳ con vật nào

1. What academic subset of oceanography studies seafloor features and the processes that form them?
O A. Biological oceanography
O B. Marine geology
O C. Physical oceanography
O D. Chemical oceanography

Answers

Biology
Oxnh ma 7 acid

What is the difference between sediments deposited in outwash and sediments deposited in moraines?

1. Sediments in the outwash are larger.
2. Sediments in the outwash are sorted
3. Sediments in the outwash are more angular
4. Sediments in the outwash are older.

Answers

Answer:

2. Sediments in the outwash are sorted

The difference between sediments deposited in outwash and sediments deposited in moraines is that-Sediments in the outwash are sorted. Therefore, the correct option is 2.

What is the sediment of outwash and moraines?

Outwash is the sediment that is carried away from a glacier by meltwater and deposited in streams and rivers. This sediment is typically well-sorted, which means that particles are relatively uniform in size, shape, and composition.

Moraines are piles of unsorted sediment that are left behind by a glacier as it retreats. This sediment is typically a mix of different particle sizes, shapes, and compositions.

The glacier's movement is not strong enough to sort the sediment of moraines, so it remains unsorted. Therefore, the correct option is 2.

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Which level of organization is characterized by a group of cells that work together to perform a common function?
organ
tissue
organ system
organism

Answers

Answer:

B

Explanation:

Answer:B

Explanation:

The principle of dominance is a
inheritance pattern. It states traits that are

Answers

Answer:

This question is incomplete, it is asking to fill in the missing gaps as follows:

The principle of dominance is a ______ inheritance pattern.

It’s states traits that are ______ mask the traits that are______

The answers to the missing gaps are: MENDELIAN, DOMINANT, RECESSIVE

Explanation:

Gregor Mendel proposed the principles that govern inheritance. These principles are called MENDELIAN inheritance pattern because they align with or follow the principles of Mendel. One of these principles by Mendel is the LAW OF DOMINANCE.

Mendel has previously stated that there are two alleles for each gene. Each contrasting allele encodes a different phenotype. However, the law of dominance states that one of these two alleles called DOMINANT allele has the ability to mask the phenotypic expression of the other allele called RECESSIVE allele. In other words, a dominant trait will mask the recessive trait.

For example, in a gene Tt, allele 'T' for tallness is dominant and hence, will mask the phenotypic expression of allele 't' for shortness. This means that the tall trait (dominant) will mask the short trait (recessive) as explained by Mendel's law of dominance.

Describe the process of germination and plant growth you observed in the lab activity for a monocot plant.

Answers

Answer:

Germination is the process by which a plant develops from a seed. The most common example of germination is a sprout of a seedling emerging from the seed of an angiosperm or gymnosperm. However, the development of a daughter spore from a spore, such as the growth of a mycelium from a fungal spore, is also germination. Therefore, germination can be understood in the general sense as anything that becomes larger from a small entity or a living organism, is a commonly used method in many seed development projects. alike.

Explanation:

why are green plants known as producer?

pls tell answer in short :)​

Answers

Because they have the presence of chlorophyll in them and they prepare their own food with the help of organic materials

what is meaning of H2O and compound​

Answers

Explanation:

H2O is water and compound is an opposite of elements

Genesis that forms from high-grade region of heat and pressure example of steps in ____ cycle


1. Rock cycle

2. Carbon cycle

3. Tectonic cycle

4. Water cycle

Answers

Answer:

tectonic cycles

Explanation:

the house in question was

Explain how the changes in the villi of a person with coeliac disease may cause the person to lose weight and have low amounts of vitamins and minerals in their body

Answers

Answer:

The changes in the villi of a person with coeliac disease may cause the person to lose weight and have low amounts of vitamins and minerals in their body because Villi absorb vitamins, minerals and other nutrients from the food you eat.

what are the main layers of Earth's interior and the indirect evidence that helped us determine the layers?

Answers

Answer:

Explanation:

layers of earth

crust

mantle

outter mantel

inner mantle

core

outter core

inner core

How do bryophytes differ from tracheophytes?

Answers

Answer:

The main difference between bryophytes and tracheophytes is that bryophytes are nonvascular plants, whereas tracheophytes are vascular. Mosses, liverworts, and hornworts are examples of bryophytes, whereas ferns, gymnosperms, and angiosperms are examples of tracheophytes

OAmalOHopeO

Which of the following correctly describes the formula for speed?

Answers

Answer:

im sorry there are no options to the question

Answer:

Speed = Distance/ Time taken

Glycolysis and gluconeogenesis are opposing pathways in that they begin or end with the same metabolites and share common intermediates and/or enzymes. Yet, for energetic reasons, the two processes cannot be the exact reverse of each other. How is this possible

Answers

Answer:

Due to difference in their products.

Explanation:

Glycolysis and gluconeogenesis are not exact reverse to each other because in glycolysis, glucose is converted into pyruvate, adenosine triphosphate (ATP), NADH, protons i.e. hydrogen ions and water whereas in gluconeogenesis, pyruvate is converted into glucose and glycogen. So due to  the formation of different products of each process we can say that glycolysis is not exact reverse of gluconeogenesis.

What is the function of the Xylem in a leaf?

Answers

A leaf is xylem the of function the is what

Which OF THESE is a reason why a bird 'sings'?

a. To mark out its territory to others of its own species

b. To frighten other birds that may attack / eat it

c. To attract its food like worms and insects

d. To wake up other birds and animals

Quick

Answers

In my opinion is A.to mark out its territory to others of its own species

What type of organisms make up the majority of life on the surface of the pelagic zone?
chemosynthetic bacteria and invertebrates
seaweed and fish
mollusks and seaweed
plankton and algae

Answers

What type of organisms make up the majority of life on the surface of the pelagic zone?
Answer:
plankton and algae

Hope that help

The types of organisms that make up the majority of life on the surface of the pelagic zone are plankton and algae. That is the last option, as plankton and algae are the primary producers in the surface layer of the pelagic zone.

What are the zones of water?

The pelagic zone is the open ocean area that comprises the largest ecosystem on Earth. It is divided into different layers depending on the depth and amount of sunlight that penetrates the water. The surface layer of the pelagic zone, also known as the photic zone, is the layer that receives enough sunlight for photosynthesis to occur, and it is where most of the ocean's primary production takes place.

Hence, the types of organisms that make up the majority of life on the surface of the pelagic zone are plankton and algae, which is the last option.

Learn more about the zones of water here.

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identify 3 organisms that belong in the same phylum as Protozoans

Answers

Answer:

Algae, Protozoa, Heterotrophs

Explanation:

Which of the following would be examples of abiotic factors in a mountain river ecosystem?
fish, algae, and sand

sand, water, and fish

sand, water, and minerals

water, fish, and algae

Answers

Sand , water , and minerals

You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:

Your timeline will span from 90 million years ago to the present. The common ancestor in your model is an arthropod that lived 90 million years ago. The gene that you’ll track codes for a protein in the species’ venom.
The DNA sequence you’ll track contains 10 nitrogen bases. You can choose the order of the bases and where the mutations occur.
This gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. To build your model, calculate the estimated time period it takes for 1 base pair to mutate.
The first time period will only show the common ancestor. At the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences.
The first and third descendant species will survive for the rest of the timeline. The second descendant species was extinct 50 million years ago.
Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning by constructing a mathematical equation.

Answers

Answer:

The mutations occur at a rate of 0.56 base changes every 1 billion years. If this rate stays consistent, the mutation rate can be used to determine when different lineages of a particular species split

Answer:

It takes about 17.1 Million years for a base pair to mutate at a rate of 0.76 base pairs. To get the time it takes for one full mutation to occur, you must divide 17.1 to 0.76 and multiply it by 1. So, (17.1/0.76)×1=22.5. It would take about 22.5 million years for one full base pair mutation to occur. Having this being said, the first descendant with one base pair mutation would change after 22.5 million years from the common ancestor. For the second descendant, it would take 45 million years as 22.5 time 2 is 45. 5 million years later, the second descendant will become extinct while the first descendant survives. The third descendant will take about 22.5×3= 67.5 million years. Now, the first and third descendants will survive while the second descendant is extinct.

Please mark as brainliest :)

Define hypothesis


Thx!

Answers

Answer:

a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

"his ‘steady state’ hypothesis of the origin of the universe"

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