What method is used in this experiment to make the plasma membrane of E. coli more fluid and easier for the foreign DNA to enter

Answers

Answer 1

Answer:b

Explanation:


Related Questions

What is an ecological pyramid with explanation

Answers

Answer:

Explanation of Ecological pyramid :-

A graphical representation in the shape of a pyramid to show the feeding relationship of groups of organisms, and the flow of energy or biomass through the different trophic levels in a given ecosystem.

Examples of Ecological pyramid :-

The productivity pyramid is also called the energy pyramid. Sun is the primary source of energy. Fungi and bacteria are decomposers which can procure nutrient from any trophic level by breaking down dead and decaying organisms. These nutrients return to the soil and ate taken up by plants.3 Major Types of Ecological Pyramids :-

| Pyramid of Number, Biomass and EnergyPyramid of Number: It depicts the number of individual organisms at different trophic levels of food chain. Pyramid of Biomass .Pyramid of Energy.

Explanation:

Hope this helps you XD ✌️Carry on learning !!

Can sunlight change the distribution of traits in a population?(1 point)

No, because the environment can only change behaviors.

Yes, because the environment is the only factor that can change traits.

Yes, because the environment can factor into the distribution of traits.

No, because the environment can only change traits in individual organisms.

Answers

A number of factors including environmental factors (for example sunlight) can also play a role in how the traits in a particular population is distributed.

Sunlight can change the distribution of traits in a population because the environment can factor into the distribution of traits.

The distribution of traits is changed when factors in the environment change/evolve and influence natural selection. These environmental factors including sunlight alter the selection of traits passed to generations and can have an effect on the distribution of the traits on Earth.

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The sunlight can be a factor for the distribution of traits in a population. Option C is correct.

Natural selection:

It is phenomenon in the evolution in which a population of species in distributed in the habitat or evolve by the certain traits that fits in the nature.

For example-

A population of a species have two types of traits,

1. Individuals that can bear the intense light.

2.  Individuals that can not bear the intense light, prefer low light.

After several generation the whole population will divide in the groups according to their ability to bear the intensity of light.

It can also result in the new species that only wake up at night to avoid the sun.

Therefore, the sunlight can be a factor for the distribution of traits in a population.

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Explain why is it important to investigate water retention properties of soils

Answers

Answer:

Soil water can affect the structural integrity or coherence of a soil; saturated soils can become unstable and result in structural failure and mass movement. Soil water, its changes over time and management are of interest to geo-technicians and soil conservationists with an interest in maintaining soil stability.

Explanation:

I hope it helps..

Give 3 examples of microscopic organisms​

Answers

Fungi, algae, and yeast.

One variable not mentioned in the description of the experiment that could affect the results of the investigation is reduced canopy cover. Describe the effect that canopy cover would likely have on the results of the investigation.

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The canopy cover can affect the results of an investigation because a higher canopy cover is accompanied by a decrease in the availability of sunlight.

The canopy cover is the proportion of the ground covered by vegetation when it is viewed from vertically above the planted area.

The level of canopy cover affects light availability on the ground and also its microclimate, thereby this feature can also alter any biological experimental procedure by affecting the level and type of biodiversity.

A reduced canopy cover may alter any experimental outcome by increasing the energy/light input in the ground cover stratum, thereby likely affecting biodiversity.

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_____ acts on proteins to produce peptides which are later broken down into _____ in the small intestine

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the enzyme pepsin acts on proteins to produce peptides which are later broken into amino acids in the small intestine

Lymph is __________. excess tissue fluid that has escaped from arteries excess tissue fluid that has leaked out of capillaries excess blood that has escaped from veins

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Answer:

Excess tissues fluid that has leaked out of capillaries.

which population should display the highest growth rate?

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Yes based off of the questions I could say China

Question 27
A prokaryotic cell has which of the following?
A
Centrioles
B
Lysosomes
C
Plasma membrane
D
Mitochondria
©
Endoplasmic reticulum

Answers

Answer:

C) Plasma Membrane

Explanation:

The four main structures are Plasma membrane, ribosome, cytoplasm, and genetic material.

mention 3 ways in which the lack of care to the coral reefs can be resolved​

Answers

Answer:

1 Recycle and dispose of trash properly.

2 Use environmentally-friendly modes of transportation.

3 Save energy at home and at work

Explanation:

Construct a table to give ONE source, the functions and the effects of the deficiency of the following micronutrients, Vitamin C, Vitamin D, Iron and iodine.​

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Answer:

I say Vitamin D.

Explanation:Confirmed with the test results.

The process in which impurities are removed from a mineral​

Answers

Answer:

The removal of impurities is usually done chemically. For example, in the manufacturing of iron, calcium carbonate is added to the blast furnace to remove silicon dioxide from the iron ore. Zone refining is an economically important method for the purification of semiconductors.

Explanation:

Hey this doesn’t make sense to me

Answers

Answer and Explanation:

The question is asking you any ingredients which are plants but contains in a pizza. It also said that it could include plants that are fed to animals so for example, beef is on top of the pizza then you can write grass.

how is glaciers melting in alaska a problem for humans

Answers

Answer:

The water will rise

Explanation:

We can drown

While eating dinner, Isabelle starts choking on a grape. She can't cough, talk, or breathe. What should her mother do to help her?

*Heimlich maneuver
(or buy a LifeVac device to keep in your car for emergencies)

Answers

Answer:

c. Do the Heimlich maneuver.

Explanation: is correct. post protected

explain four ways in which saprophytes are economically important in nature.​

Answers

Answer:

They break down dead and decaying organic matter into simple substances

Explanation:

.

Explain how protein electrophoresis is done. Is it different from DNA and RNA electrophoresis?

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Electrophoresis is the process in which specific components are separated based on size.

As the name implies protein electrophoresis is used to determine proteins in a sample and DNA electrophoresis is used to determine DNA segments (and later sequences) in a given sample.

Adaptational characteristics of himalayan animals​

Answers

Answer:

Thick layer of body fat or bubbler, to reduce body heat loss. Strong hooves for walking on rock slopes. Thick fur on paws for protection from cold while walking on snow.

Explanation:

1) Thick layer of body fat or bubbler, to reduce body heat loss. 

2) Strong hooves for walking on rock slopes.

3) Thick fur on paws for protection from cold while walking on snow.

Why can mutations in one organism function the same way in a different organism?​

Answers

No only a small percentage of variants cause genetic disorders of the most have no impact on health or development. For example some variants alter a gene DNA sequence.

What causes a substance’s identity to change during a chemical change?

Answers

Chemical changes occur when bonds are broken and/or formed between molecules or atoms. This means that one substance with a certain set of properties (such as melting point, color, taste, etc) is turned into a different substance with different properties. ... One good example of a chemical change is burning a candle.



(Sorry if this didn’t help)

describe how the plasma membrane helps maintain homeostasis

Answers

Answer:

The plasma membrane, also called the cell membrane or phospholipid bilayer, is the sack that surrounds cells. ... The plasma membrane maintains homeostasis in the cell by keeping cell contents in and foreign material out, and by providing controlled avenues for the transportation of fuel, fluids and waste

with such a rich diverse array of life forms how are we able to live harmoniously with each other​

Answers

Explanation:

Life on earth is incredibly diverse. Biological diversity is the variety of life on earth. This includes all the different plants, animals, and microorganisms. Life on earth is incredibly diverse. Biological diversity is the variety of life on earth. This includes all the different plants, animals, and microorganisms; the genes they contain; and the ecosystems they form on land and in water. Biological diversity is constantly changing. The source of this diversity is evolution, the process of gradual change during which new species arise from older species. Evolutionary biologists study the evolution of living things in everything from the microscopic world to ecosystems. There are so much duversity in life on the Earth because there are great numbers of species on the earth, the present day organism are the end product of about 3.5 billion years of organic evolution on earth.

PLZ HELP! what would happen to the current heliocentric model if entirely new evidence emerges that cannot be explained by the model?​

Answers

Answer:

At least give some answers to go by, anyway, if the evidence is not yet proven then nothing, if it is proven to be true(whatever it is) it would make us change the current model to support this new evidence.

Explanation:

Don't expect a perfect answer, I haven't done the question to know the answer choices, so this is all I can presume. and if somebody comes in here and pastes the answer from A.P.E.X without stating that they copied it I am going lose my mind.

help pls !! will give brainliest -


7A - Indicate the complementary strand of the DNA molecule shown here.

5’ A A T C G C T G C C T 3’

7B - If the original DNA molecule shown in question 7A were used in the process of transportation to produce mRNA, then what would be the sequence of the mRNA molecule?

(please answer both questions)

Answers

Answer:

A A T C G C T G C C T  

T T A G C G A C G G A

U U A G C G A C G C A

Explanation:

Adenine (A) and Thymine (T) pair together. Cytosine (C) and Guanine (G) pair together.

With mRNA, the RNA doesn't have Thymine, so it replaces it with Uracil (U).

The element lithium has two common isotopes: Li–6 and Li–7 If the average atomic mass of lithium is 6.94004 u, determine its percent isotopic abundances. Step by step and explain.

Answers

First we need to determine the average atomic mass of these isotopes.

The atomic masses of Lithium-6 and Lithium-7 are 6.0151amu and 7.0160amu respectively.

Now that we have that, we need to set up the relative abundance problem.

We can do that using the formula (M1)(x) + (M2)(1-x) = M(E)

Because you asked for details, I'll explain what each variable stands for-

M1 = the mass of one isotope

x = the relative abundance

M2 = the mass of the second isotope

M(E) = the atomic mass of the element from the periodic table

Therefor all we do now is plug in our respective variable.

M1 = 6.0151amu (Lithium-6)

x = unknown relative abundance

M2 = 7.0160amu (Lithium-7)

M(E) = 6.94004amu

Now the formula plugged in will look like this:

6.0151x + 7.0160(1-x) = 6.94004

Now doing some quick math, we can determine that x=0.07589

For the last step we need to find the percent abundance of each element, which is quite simple. We take X and multiply it by 100 to find Lithium-6, so 0.076 x 100 = 7.6%

and since then we use 1 - X, so 1 - 0.076 = 0.924

We take that and also multiply it by 100, so 0.924 x 100 = 92.4%

Conclusion:

The abundance of the Lithium-6 isotope is 7.6%, and the abundance of the Lithium-7 isotope is 92.4%.

Please ask if you have any questions and I hope this was helpful!

Which organelle captures energy from the sunlight and uses it to produce food in a plant cells

A. Chloroplast
B. Nucleus
C. Ribosomes
D. Mitochondria

Answers

Chloroplasts capture light energy for photosynthesis

what was the first genetically modified food approved for sale in the us

Answers

Answer:

Flavr Savr™ Tomato

Explanation:

A DNA microarray contains immobilized DNA that corresponds to different genes. The microarray is hybridized with fluorescently labeled DNA probes reverse transcribed from the control and experimental mRNA samples. The control probe is labeled with a red fluorochrome, while the experimental probe is labeled with a green fluorochrome. What will be the color of the spot representing a gene with moderately upregulated expression in the experimental sample relative to the control one

Answers

The color of the spot of a gene with moderately upregulated expression will be lime-green. A DNA microarray is a technique used to determine the expression level of many genes simultaneously.

A DNA microarray is a laboratory technique used to identify the genes that are being expressed in a cell.

A DNA microarray contains many tiny spots of specifically labeled cDNA samples referred to as probes, which can be hybridized by base complementarity to transcribed (mRNA) gene sequences.

In the DNA microarray, the probes can be fluorescently marked gene sequences.

After hybridization, the DNA microarray is then scanned in order to determine the level of gene expression of each mRNA that hybridizes with their corresponding probes on the slide.

In this case, green spots evidence genes that are being strongly expressed in the sample.

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_______and mucous work to trap dirt and germs
before we inhale.

Answers

Answer:

Cilia

Explanation:

     

Identify the type of blood vessel shown below. How does its structure match its function?

Answers

Answer:

Can you also send the diagram

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For the amusement of the guests, some hotels have elevators on the outside of the building. One such hotel is 400 feet high. You are standing by a window 100 feet above the ground and 150 feet away from the hotel, and the elevator descends at a constant speed of 20 ft/sec, starting at time t = 0, where t is time in seconds. Let be the angle between the line of your horizon and your line of sight to the elevator. 4 (a) Find a formula for h(t), the elevator's height above the ground as it descends from the top of the hotel. h(t) = (b) Using your answer to part (a), express as a function of time t. (t) = Find the rate of change of with respect to t. d dt = (c) The rate of change of is a measure of how fast the elevator appears to you to be moving. At what time does the elevator appear to be moving fastest? time = seconds At what height does the elevator appear to be moving fastest? Find the slope of the line that passes through:(-3,-4) and (76) The length of a rectangle is (2x + 1). The width of the rectangle (x2+ 2x - 1). Which expression represents the area of the rectangle? what are the impact of globalisation on our local? A multi-disciplinary team can be the most challenging for obtaining a diagnosis of FAS or FASD due to the challenges of a team of people trying to reach a consensus.True / False What was the significance of the Whiskey Rebellion?To tax whiskeyTo create more whiskeyDemonstrated the U.S. government's power to enforce lawsDemonstrated the Supreme Court's power to create new laws Kolby decided he wanted to go to the amusement park. The amusement park charges $8.00 for entry and $1.40 for each ride.Part A Write an expression to represent this scenario where r represents the number of rides.Part B Create and solve an equation to determine how many possible rides Deniss can ride if his parents gave him $26.00Show your work. When Mexico suffered from capital flight in 1994, Mexico's net capital outflow a. and net exports decreased. b. and net exports increased. c. increased while net exports decreased. d. decreased while net exports increase On Tuesday, a restaurant serves iced tea to 24 of its 160 customers. What percent of the customers order iced tea Which of the functions represents a function? the difference between factors and factor pairs quelqu'un peut m'aider ? J'ai besoin du RSUM de ce texte. 4. What would have the most biodiversity, a rainforest with lots of differentanimals and plants or a crop of green beans? Cierto o falso: Cuando utilices el imperfecto, estas describiendo lo que estaba pasando.Question 1 options: True False which of the following statements best describes nucleic acids? The Persian Empire followed Zoroastrianism, which means they believedA) there are people who are watching us and all we do B) the universe is in a constant struggle between good and evil C) the universe is good but people can still do bad things D) nobody is good or bad, they simply are people whats the answers can anyone answer this question please Consider the topics Whitman addresses in the two poems. What topics do the poems have in common? How does Whitman develop these shared topics in the poems? Use evidence from the poems to support your answer. what type of food is necessary in order to maintain health? 2. Oliver stopped by the convenience store and buys a can of soda. *awill buybought