Why are genetically engineered mammalian cells sometimes needed to produce certain proteins instead of genetically engineered bacteria?
A. Mammal cells are larger and can produce greater volumes of protein.
B. Mammalian cells are not needed; bacterial cells can produce the same proteins as long as they have the gene that codes for it.
C. Mammal cells have more precise restriction enzymes.
D. Bacteria make proteins differently than mammals, and cannot make certain human proteins.

Answers

Answer 1

Answer:

C

Explanation:

Answer 2

As mammal cells have more precise restriction enzymes, it sometimes needed instead of bacteria. The correct option is C.

What is genetic engineering?

Genetic engineering also referred to as genetic modification is a process that uses laboratory-based technologies to alter an organism's DNA makeup.

Because mammalian cells have more precise restriction enzymes, it is sometimes necessary to use them instead of bacteria.

Herbert Boyer and Stanley Cohen, biochemists, create genetic engineering in 1973 by implanting DNA from one bacteria into yet another.

There are three basic stepping stones to genetic engineering. These are:

Isolating DNA fragments from a donor organism.Inserting an isolated donor DNA fragment into a vector genome.Growing a recombinant vector in an appropriate host.

Thus, the correct option is C.

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Related Questions

briefly describe what the outer layer of bone tissue is like

Answers

Answer:

dinkachika

jingalalalalallalal

Answer:

Plz refer image for your answer

Explanation:

Hope it helps.. if yes plz mark me as brainliest

Identify a global challenge

Answers

Answer:

electrical waste management and deforestation

explain how bacteria cam develop resistance to an antibiotic?

Answers

Explanation:

Bacteria develop resistance mechanisms by using instructions provided by their DNA. Often, resistance genes are found within plasmids, small pieces of DNA that carry genetic instructions from one germ to another. This means that some bacteria can share their DNA and make other germs become resistant.

hope this helps you

have a nice day

Besides plants, what other factor distinguishes one biome from another biome?
(A) the number of plant species in the biome
(B) the variety of animal species
(C) average temperatures and precipitation
(D) geographic location

Answers

C) Average temperatures and precipitation

Which of the following cell membranes is the most fluid?

Membrane A, because it is composed of saturated fatty acids that have one or more cis bonds that form stable aggregations

Membrane A, because it is composed of saturated fatty acids that lack weak hydrogen bonds that continually break and reform to permit macromolecule movement

Membrane B, because is it composed of unsaturated fatty acids that form weak covalent bonds at the site of their cis bonds, which permit easy movement

Membrane B, because it is composed of unsaturated fatty acids that have one or more bends, which prevent tight packing

Answers

Answer:

Membrane B, because it is composed of unsaturated fatty acids that have one or more bends, which prevent tight packing.

HELP ME PLEASE FASST
Which of the following describes a scenario that could increase the winds of the jet stream?
O Faster global convection currents
O Decreasing radiation from the sun
O Equal heating of the Earth's surface
O Stopping conduction from the ground​

Answers

Answer:

faster global convection currents!

Fortunately I just took this quiz and received 100%!

The statement that explains scenerio that can bring an increase to winds of the jet stream is A: Faster global convection currents.

Jet streams can be regarded as a fast flowing as well as narrow and meandering, air currents which is found on Earth and other planet. It is a bands of strong wind which moves to east from west in the globe.

The wind of jet stream do increase by the action of wind current, because convection current do aid the movement of this this wind from a place to the other

Therefore, option A is correct.

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What can differentiate between multiple layers of the ocean floor?

sonar

magnetic imaging

x-ray

seismic reflection

Answers

Explanation:

seismic reflection is the answer

As compared to the circulatory system of most fishes, the circulatory system of adult amphibians has the advantage of a single circuit. partially-separate circuits for gas exchange and systemic delivery of blood. complete separation between oxygenated and deoxygenated blood. a four-chambered heart. a pocket of the gut that serves as an air bladder.

Answers

Answer:

Partially separate circuits for gas exchange and systemic delivery of blood.

Explanation:

Adult amphibians have separate circuits for gas exchange and systemic delivery of blood. Fishes usually breathe through gills  and very few have nostrils. The fishes can breathe underwater with the help of their gills.

A sealed Ecosphere is able to perpetually sustain life until what happens?

Answers

Answer:Oxygen is DEPLETED

Explanation:

define ostia in science​

Answers

Answer:

Ostia are tiny pores present all over the body of sponges. its function is to let the water, along with desire nutrient flows interior of the sponges.

Answer:

An opening, a passage.

Explanation:

science - Anatomy

Write one functions of seed.​

Answers

Seeds serve several functions for the plants that produce them.

Most fresh water fish are hypertonic, meaning their body cells contain more salt than the surrounding water. Since osmosis should push water into their cells, why don't they explode? They don'­t drink any water because they get so much from osmosis. They have adapted to live with high osmotic pressure. They urinate a lot, so the water does not build up. Their cells have adapted to absorb salt. All of the above

Answers

Answer:

They urinate a lot, so the water does not build up.

Explanation:

Freshwater fishes are fishes that live in freshwater habitat i.e. little or no salt. This means that the fishes are hypertonic (have more salt) to their external environment. Due to their hypertonicity, freshwater fishes tend to take in more water via osmosis.

Freshwater fishes, however, do not explode despite this phenomenon because they pass out the excess water via urine waste. Freshwater fishes urinate a lot, hence, the absorbed water does not build up in their bodies.

Adaptation:
Question 4
Which phrase indicates that organisms in a population with the best-adapted set of traits become more common over time?
Select one:

Mutations are not harmful.


Bigger is better.


All organisms have a common ancestor.


Survival of the fittest.

Answers

Answer:

Mutation is yes a harmful

Explanation:

hormones in the bloodstream

Answers

Answer:

insulin

Explanation:

Answer:

chemical messenger.

Explanation:

Many animals have a mutually-beneficial, symbiotic relationship with bacteria that reside in their guts. To study the effects of these relationships in more detail, research organisms such as fish and mice have been raised under germ-free conditions. What important process do you predict is compromised in germ-free mice

Answers

Answer:

Explanation:

Quá trình tiêu hoá và hấp thụ chất dinh dưỡng

what type of energy transfer happens when something freezes

Answers

Alternate interior angles is the chemical answer

please help me out, name all 3 parts of the atom. ​

Answers

1. Proton
2. Neutron
3. Electron

In the atom, the arrow 1 depicts the proton. The arrow 2 depicts the neutrons, and the arrow 3 depicts the electrons. All three of these are subatomic particles.

What is an atom?

An atom is the fundamental structural unit of matter. It consists of protons, neutrons, and electrons. Electrons are negatively charged particles that are present outermost shell of the atom, while protons are positively charged particles that make up the core of the atom. The neutron doesn't have any charge.

Both neutrons and protons make up the core of an atom, while electrons revolve around them. A neutral atom has equal numbers of protons and electrons. Example: the sodium atom.

Hence, the atom showing arrow 1 is a proton, arrow 2 is a neutron, and arrow 3 is an electron.

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Which of the following is NOT of the major biogeochemical cycles?

A.Life cycle
B.Water cycle
C.Carbon cycle
D.Phosphorus cycle

Answers

water cycle............

The following is NOT of the major biogeochemical cycles D.Phosphorus cycle is D.Phosphorus cycle.

What is the difference between Carbon cycle and Phosphorus cycle?

The major distinction among carbon and phosphorus cycle is that carbon cycle interacts with the environment while phosphorus cycle does now no longer engage with the environment. Therefore, the carbon cycle is a sort of gaseous biking while the phosphorus biking is a sort of sedimentary rocks.

As in comparison to nitrates & different macro elements, decomposers take longer time to decompose any lifeless biota into phosphates. Decomposers are organisms mainly a soil bacterium, fungus, or invertebrate, that decompose natural material. These are the motives for phosphorus cycle being the slowest biogeochemical cycle.

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Why is it difficult to bond three phosphate groups to Adenosine?

They have the same charge and repel each other.

They form a strong attraction to each other.

They are like opposite poles of a magnet.

The energy is evenly dispersed across all three bonds.

Answers

I think that answer is they are like Opposite poles of magnet.

I really hope it’s right

ANSWER AND I’LL GIVE BRAINLIEST

Which of the following statements can you infer would happen If one organ system stopped working?
a. The other organ systems would have to work harder to make up for the broken system
b. The other organ systems would stop working too.
c. The other organ systems would still work on their own but might have to work harder to complete their function correctly.

Answers

Answer:

b

Explanation:

After one system shuts down, the others would slowly start to shut down as well until the body can no longer maintain homeostasis and the person would slowly die. 3. All systems would be working together but the main ones would be muscular, nervous, and skeletal.

Help!!!
I'll give brainliest the brainliest. ​

Answers

Answer:

resists the turgor  pressure of the cell:  A : cell wall

controls the activities of  the cell : C : nucleus

site of the chemical  reactions of the cell  including synthesis of  proteins:  D : cytoplasm

Answer:

1. A -  Cell Wall

2. C - Nucleus

3. B. Mitochondria

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Two lizards with different coloring exist within the same ecosystem. One lives in the trees, and the other prefers hiding among rocks. They are separate species because
they behave differently
Othey have different characteristics
Othey cannot successfully reproduce
Othey exist within the same ecosystem

Answers

They are separate species because they have different characteristics.
Which means their adaptation methods will be different.

Natural selection is that the process through which populations of living organisms adapt and change.

What are the adaptations behavior in organisms?

Many animals are well adapted to biotic and abiotic conditions due to behavioral, physiological, or structural adaptations that increase their chances of survival and reproduction.

Behavioral - responses made by an organism that help it to survive/reproduce.

.

Physiological - a bodily process that helps an organism to survive/reproduce.

Structural - a feature of an organism’s body that helps it to survive/reproduce.

Thus, we can conclude that the correct option is (b).

They are separate species because they cannot successfully reproduce.

which means they have different adaptation methods.

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q.no. 5 answer me please please please please please please please please please please please

Answers

Answer:

(a)The strength of natural fibers is very less as compared to synthetic fibers.  Natural fibers are heavy in weight.  Natural fibers can be damaged by moths and other insects.  These fibers are not wrinkle-free.  These fibers are not long lasting and hence not durable.

(b)  Cellulose is termed as polymer because it is made up of many monomer units.

(c) Rayon is first man- made fibre it is known as artificial silk because it have properties that are similar to silk.

(d) Rayon possesses many properties of natural fibers since it is a semi-synthetic fiber. Nylon is a synthetic fiber and has properties that are completely different from natural fibers. The key difference between rayon and nylon is their resistance to wrinkles and tears.

(e) Nylon has since become a popular choice, as it has excellent wind resistance, good elasticity, mildew resistance, and is comparatively cheaper. The material is also lightweight and dries quickly.

(f) When the piece of cotton is burnt then it burns completely and produces no odour or smell. When nylon is burnt, It completely burns and produces burning paper like odour. When nylon is burnt then the nylon is completely shrink and starts to melt first and then produces odour during the time of burning

laws of thermodynamics

Answers

Answer:

The Zeroth Law of Thermodynamics states that if two systems are in thermodynamic equilibrium with a third system, the two original systems are in thermal equilibrium with each other. The Second Law of Thermodynamics states that the state of entropy of the entire universe, as an isolated system, will always increase over time. The First Law of Thermodynamics states that energy can be converted from one form to another with the interaction of heat, work and internal energy, but it cannot be created nor destroyed, under any circumstances. The 3rd law of thermodynamics will essentially allow us to quantify the absolute amplitude of entropies.

Human Population Growth and Overpopulation
Can someone please help me I don't understand what I have to do.

Answers

Answer:

all you're trying to do is create a histogram of what has happened in the past and what could happen in the future.

Explanation:

for example and AD you feel the first little bar because it's not more than a billion and its last therefore it would be the zero billion

and then for 1850 you feel to bars because they had 1 billion people so therefore you feel the 0 billion and the 1 billion part

How many different genotypes are possible from a cross between the parents RRYy and rrYY?

Answers

Answer:

1 genotype is possible

RrYy

RrYy or RrYY
it will always be Rr when crossing RR and rr but crossing Yy and YY can give YY or Yy

1. Assertion: Mother may be a carrier for haemophilia.
Reason: The father is always a carrier for haemophilia.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but the Reason is false.
(d) Assertion is false, but the Reason is true.

Answers

Answer:

c

Explanation:

The assertion is true,but the reason is false because the mother is the carrier.

I hope this helps

In the scientific process, what is the correct sequence for the following steps: A: Recognizing a problem/Asking a question; B) Testing a hypothesis; C Drawing inferences
Group of answer choices

ABC

ACB

CAB

BCA

Answers

Answer:

ABC

Explanation:

Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.

biological term for control of the body temperature​

Answers

Thermoregulation is a process that allows your body to maintain its core internal temperature. All thermoregulation mechanisms are designed to return your body to homeostasis. This is a state of equilibrium

What is the control for “which bait works best for a homemade fly trap?”

Answers

Answer:

A glass of water or an empty cup

Explanation:

If no flies are attracted, that means your experiment is not flawed.

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The expression y2 10y + 24 has a factor of y 4. What is another factor of y2 10y + 24?y 20y 14y 8y 6 Tony calculates that 3 cubic metres of concrete is enough for the path.He decides to use a concrete mix which has: cement = 1 part sand = 2 partsgravel = 3 partsHow many cubic metres of gravel does Tony need?0.5 Solve the equation for x: (4x+38) + (2x-18)=180 The government passes a law that allows a substantial subsidy for every acre of land used to grow tobacco. How does this program affect the long-run supply curve for tobacco? The long-run supply curve for tobacco will A. shift to the right because the price of tobacco will increase. B. shift down because . C. shift because tobacco production will become profitable. D. not change because the minimum long-run average cost of production will not change. E. become instead of horizontal because the costs of inputs will change. paragraph made of idioms Stealing goods from a retail store is calledforgery.robbery.burglary.shoplifting. In order to encourage the establishment of communities in the Western lands Congress set aside land for what? . if f(x+3)=x+6 find inverse of function f(x) To what degree do you think the authors view is shared by the others in the store listening to the broadcast? Champion of the world Way that harmattan season affects farm resources ______ exhibits the highestintermolecular forces of the states of matter.A. SolidB. LiquidC. GasD. Vacuum A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanics are randomly selected, find the probability that their mean rebuild time exceeds 8.7 hours.Group of answer choicesA. 0.1946B. 0.1285C. 0.1469D. 0.1346 Match each area of study with its definition.A. phoneticsC. semanticsE. morphologyG. psycholinguisticsI. nuerolinguisticsB. phonologyD. syntaxF. applied linguisticsH. sociolinguisticsJ. anthropological linguistics1. a study of language in relation to the brain2. a study of language in relation to the mind3. a study of word-formation systems4. a study of language in relation to social diversity5. a study of how human sounds are produced6. a study of how sounds function in language7. a study of language in relation to culture8. a study of how meaning is conveyed in language9. a study of how sentences are structuredI10. a study of linguistic principles in relation to language teaching Can someone help me by please Cat Chaser. Annette, who is angry because her neighbor, William, allows his dog to chase her cat, decides that she wants to get even. She moves a number of farm animals into her backyard and begins playing music at all hours of the night. She also steals a nice lawn chair off William's deck. She Antends to keep the chalt. Annette further took a rake off William's deck that she plans to return after she finishes raking her leaves. William did not give her permission to take the rake. Willam is unhappy about the whole situation and wants to sue. What claim would William have against Annette for taking the lawn chair? A. Negligence B. Conversion C. Harassment D. Trespass to personal property E. Private nuisance Which of the following is a heterotroph?*cyanobacteria*gopher*fir tree*dandelion How much of a 24-gram sample of Radium-226 will remain unchanged at the end of three half-life periods? Why do plaintiffs sometimes reach settlements before a civil trial begins?A. To prevent a prosecutor from showing evidence against themB. To give the judge a chance to reach a verdict in their favorC. To avoid being found guilty of a crime by the juryD. To make sure they get at least part of what they want In a physics lab, light with a wavelength of 560 nm travels in air from a laser to a photocell in a time of 17.2 ns . When a slab of glass with a thickness of 0.810 m is placed in the light beam, with the beam incident along the normal to the parallel faces of the slab, it takes the light a time of 20.8 ns to travel from the laser to the photocell.Required:What is the wavelength of the light in the glass? 1. Which of the following expressions are equivalent to? Select all that apply. A. 31 . 36 B. 31 . 35 C. 3-2 . 3-4 D. 32 . 3-8 E. 3 3-6 F.3-1 . 3-5