Give five points about host cell - Ecoli (Biotechnology)​

Answers

Answer 1

[tex]{ \boxed{ \red{ \sf{host \: cell - Ecoli}}}}[/tex]

# Multiplies once in every twenty minutes.

# Short lifespan.

# Contains plasmid used as vector in genetic engineering.

# Gram negative and non-capsulated bacteria.

# Sensitive to wide range of antibodies.


Related Questions

which new gene formation does fit to ortholog type of homology in evolution?

Answers

Gene duplication is a new gene formation phenomenon that fits the ortholog type of homology in evolution.

What is homology in evolution?

The expression homology in evolution makes reference to the emergence of similarities between two or more sequences due to a common origin, which may occur as a consequence of gene duplication and subsequent divergence of ortholog sequences in order to play different roles as genetic material in the cell of an organism.

Therefore, with this data, we can see that homology in evolution is caused by similarities due to a common ancestor and it may be due to gene duplication.

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Rats are endothermic (warm blooded) animals. Explain why the physiology of a perch (an exothermic or cold blooded animal) would not support the metabolic needs of a rat.

Answers

They can readily adjust to any maximum temperature, allowing them to survive there. Rats were toasty endothermic animals. As a result, a rat's physiological needs wouldn't be met by the physiology of perches.

Animals having cold blood are those that are unable to adjust their internal body temperature in response to environmental changes. They are unable to endure high temperatures. Reptiles, fish, and other cold-blooded creatures are examples.

Animals with warm blood were those that have the ability to control and maintain a consistent body temperature. They could readily adjust to just about any temperature range, allowing them to survive there. Rats were warm-blooded endothermic animals. As a result, a rat's physiological requirements would not be met by the physiology of such a perch (an exothermic as well as cold-blooded species).

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What passes through the
electron transport chain
AND both photosystems
to create a usable form of
energy for plants?
A. oxygen
B. electrons this is answer
C. pigments

Answers

Electrons  passes through the electron transport chain and both photosystems to create a usable form of energy for plants

The electron transport chain is a series of four protein complexes that couple redox reaction and creating an electrochemical gradient that lead to the creation of ATP in a complete system named oxidative phosphorylation and it occur in mitochondria in both cellular respiration and photosynthesis and energy in form of ATP is generated at both cellular respiration and photosynthesis and in cellular respiration energy is synthesized in the mitochondria when electron passes through series of complex composed of the protein called as electron transport chain and electron produced from splitting water passes photosystem

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Answer: Electrons

Explanation: The electron transport chain is a series of molecules that accept or donate electrons easily

Differentiate between the lysogenic and lytic cycles. (1 point)
Viral proteins are synthesized during the lysogenic cycle.
O The virus injects DNA into the host cell during the lysogenic cycle.
O The host cell is destroyed during the lytic cycle.
O The host cell copies its own DNA during the lytic cycle.

Answers

Differentiate between the lysogenic and lytic cycles The virus injects DNA into the host cell during the lysogenic cycle.

The lytic cycle includes the replica of viruses using a number cellular to fabricate greater viruses; the viruses then burst out of the cellular. The lysogenic cycle involves the incorporation of the viral genome into the host cellular genome, infecting it from inside.

Inside the lytic cycle, the viral genome does no longer comprise into the host genome. within the lysogenic cycle, the viral genome consists of into the host genome and stays there throughou The main difference among lytic cycle and lysogenic cycle is that lytic cycle destroys the host cell while lysogenic cycle does no longer spoil the host mobile

The primary difference between lytic cycle and lysogenic cycle is that lytic cycle destroys the host cell whereas lysogenic cycle does not destroy the host cell. Viral DNA destroys the host cell DNA and arrests the cellular features within the lytic cycle. but, in the lysogenic cycle, viral DNA may merge with the host.

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PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

122+293

773

because you are you still

Answer:

Notothenioidei is one of 19 suborders of the order Perciformes. The group is found mainly in Antarctic and Subantarctic waters, with some species ranging north to southern Australia and southern South America.[2][3] Notothenioids constitute approximately 90% of the fish biomass in the continental shelf waters surrounding Antarctica.[4]

773 is answer

The results in the table above show the percentage change in mass of the potato cylinders.
explain why the percentage change results are positive and negative.

Answers

The percentage change in the mass of the potato cylinders is both positive and negative because the concentrations of the sugar solutions differ.

Osmosis

In biology, osmosis refers to the movement of water molecules from regions of low solute concentrations or high water potentials to regions of high solute concentration or low water potential through a semi-permeable membrane.

Solutions with high solute concentrations as compared to the sap of cells are said to be hypertonic to the cells. The cells, will, therefore, lose water to hypertonic solutions.

Solutions with the same solute concentrations as cells are said to be isotonic to the cells. There is no net movement of water between such solutions and the cells.

Solutions with lower solute concentrations as compared to cells are said to be hypotonic to the cells. Such solutions lose water to the sap of the cells.

This is exactly what happened in the case of the solutions and the potato cylinders. Hypertonic sugar solutions will cause the potato cylinders to lose water and weigh less than their initial weights. This will return a negative percentage change in weight.

Hypotonic solutions, on the other hand, will cause the potato cylinders to gain water and weight more than their initial weights. This will return a positive percentage change in weight.

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How does the translation
process know where to
start and stop?
A. The ribosome decided when to
start and stop.
B. Start and stop codons this
C. It is random.
D. The genes regulate the entire
process.

Answers

Answer: B. Start and stop codons

Explanation:

The start codon marks the site at which translation into protein sequence begins, and the stop codon marks the site at which translation ends.

Answer:

b) Start and stop codons

Explanation:

The translation process know where to start and stop by Start and stop codons. Hence, the option (b) is correct.

Examples and non examples of nucleus

Answers

.Answer:
Prokaryotes and Eukaryotes?
Explanation:
Im not really sure what this question was asking, but Prokaryotes are an example of organisms which have no nucleus, their DNA floats inside of them, these are usually unicell.
Eukaryotes have a nucleus, and these can be unicellular, but are mostly multicellular for example animal cells and plant cells are all eukaryotes.
Hope this helps! :)
P.S To remember "Pro" is NO nucleus and "Eu" DO have a nucleus (rhymes)

The arctic fox is uniquely adapted to its environment with white fur for camouflage, a small nose and ears and warm coat to prevent heat loss and strong paws for running and hunting. Which statement best describes how the arctic fox population may have adapted « its environment over time?
A. Foxes were bred to meet human needs for white fur.
B. Foxes developed smaller ears and noses in response to their cold climate. They were able to survive and pass this trait on to their offspring.
C. Foxes changed their fur to white to hide from predators and disguise themselves from their prey. They were able to survive and pass this trait on to their offspring.
D. Variation existed in the traits of the fox population. Foxes with smaller ears and noses were able to stay warmer and were more likely to survive and reproduce to pass their genes on to offspring. Over time, the fox population showed a shift to smaller ears and noses.

Answers

Answer:

D. Variation existed in the traits of the fox population. Foxes with smaller ears and noses were able to stay warmer and were more likely to survive and reproduce to pass their genes on to offspring. Over time, the fox population showed a shift to smaller ears and noses.

Explanation:

Adaptation does not happen overnight, and humans didn't breed foxes to have white fur. Smaller ears and noses allow less exposure to the cold because of their smaller surface area, which prevents heat loss. Foxes with smaller noses and ears didn't die of hypothermia, which allowed them to survive and breed and pass their genes to their offspring.

examples and non examples of a electron

Answers

Answer:

[Example]

Electrons are the smallest of the particles that make up an atom, and they carry a negative charge. The number of protons and electrons is equal in a neutral atom. The hydrogen atom, for example, has just one electron and one proton. The uranium atom, on the other hand, has 92 protons, and therefore, 92 electrons.

[Non examples]

Protons because a proton is positivelycharged & the electrons of negatively charged.

Please help don’t understand

Answers

Answer:

I believe the answer is D

Explanation:

What characteristics of the lungs of infants and small children creates increased risk of respiratory disorders

Answers

Answer:

The internal diameter of the airways in a child is smaller. Any inflammation or obstruction may cause more severe distress. In general, pediatric airways are smaller, less rigid, and more prone to obstruction. Children also have higher respiratory rates than adults making them more susceptible to agents in the air.

Explanation:

4 organelos celulares comparados con objetos cotidianos

Answers

Four cell organelles in living cells are: mitochondria, nucleus, ribosomes and endoplasmic reticulum.

What is meant by mitochondria, nucleus and ribosome?

The mitochondria refers to that organelle found in the cytoplasm which is regarded as the power house of cells.

The nucleus is the organelle in the cell where all cellular activities are controlledThe ribosomes are the sites of protein synthesis.

That being said, a cell is defined as the structural, functional and basic unit of life.

So therefore, it can be deduced from the task above that ribosomes and mitochondria are some of the few organelles in the cells of living organisms.

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Help please

Why is mRNA so important?
A. because without it, DNA would be unable
to relay information to the rest of the cell
B. because it is the only molecule that carries
genetic information
C. because without it, the cell membrane
would be unable to protect the cell from
attack
D. because it has digestive enzymes that
protect DNA from being attacked

Answers

Answer:

a

Explanation:

because without it, DNA would be unableto relay information to the rest of the cell

Which is NOT a
characteristic of
saturated fats?
A. They are less healthy than
unsaturated fats.
B. They are gases at room
temperature. This
C. They are saturated with
hydrogen.
D. They are liquid at room
temperature.

Answers

Answer:

They are liquid at room

temperature.

what is the meaning of cell division​

Answers

Answer:

mitosis and meiosis.

Explanation:

There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.

Which model accurately represents how DNA replication functions? Explain.​

Answers

Answer: the semiconservative one

Explanation: it desribes how dna replication works



What could result if tryptophan cannot cross into the cell?

A decrease in tryptophan levels in the blood

A build-up of tryptophan levels in the blood

Answers

If tryptophan cannot cross into the cell, there will be a build-up of tryptophan levels in the blood (option B).

How do substances move into cells?

Tryptophan is an essential amino acid having an indole side chain. It is present in many foods, especially chocolate, oats, bananas and milk.

Tryptophan is essential for normal growth and development and is the precursor of serotonin and niacin. This amino acid is carried by the blood and is absorbed by living cells for use.

However, in a case whereby tryptophan cannot cross into the cells, it becomes built-up in the blood and increase in concentration.

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What do we call the cells in
phloem that are alive at
maturity, but lose almost all
of their organelles?
Tracheids
Sieve-tube this

Answers

Sieve elements are the phloem cells that are still alive when they reach adulthood but have essentially no organelles left.

Sieve elements are alive at maturity but lack some organelles, such as a nucleus, in comparison to tracheary elements, which have just primary cell walls (and consequently thicker overall cell walls).

Thin-walled cells called sieve elements typically don't have nuclei but are nonetheless alive at maturity despite having a significantly altered protoplast. .The primary walls of parenchyma cells are thin, and they typically continue to live after reaching maturity. The primary type of elongated photosynthate-conducting cell in vascular plants' phloem is known as a sieve element. Sieve regions, which are thinner, circular to elliptical portions of the wall, are present in the walls of sieve elements.

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In fruit flies, brown bodies (B) are dominant to black bodies (b). Cross a black fruit fly with a heterozygous fruit fly. Determine the phenotypic and genotypic rations of their potential offsping

Answers

The possible phenotypes of heterozygous fruit flies with brown bodies (Bb) that are crossed with black bodies (bb) include both brown flies (genotype Bb) and black flies (genotype bb).

What is a Punnett square?

The Punnett square is a diagram used in genetics to calculate the possible phenotypes and genotypes in offspring according to the cross, which in this case includes Bb x bb to generate Bb and bb offspring.

Therefore, with this data, we can see that the Punnett square can be used to calculate the phenotypes in the next generation through their genotypes.

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In which type of cell do both DNA replication and cellular respiration take place in the cytosol?

- Animal cell
-Fungal cell
-Plant cell
-Bacterial cell

Answers

Both DNA replication and cellular respiration take place in the cytosol of a Bacterial cell.

What is a bacterial cell?
Small, single-celled organisms called bacteria exist. Nearly all areas of the world are home to bacteria, which are essential to its ecosystems. Some species can survive in environments with high pressure and temperatures. In fact, it's thought that there are more bacterial cells in the human body than there are human cells. Bacterial cells don't have a nuclear membrane therefore both DNA replication and cellular respiration take place in the cytosol. Hence, bacterial cells do both.


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Select the correct answer. The energy entering this system is equal to the energy leaving the system. Based on the law of conservation of energy, how many units of energy are entering the system? Illustration of squared labeled system. The arrows on the right side line of the square and the bottom line of the square are pointing out with energy values 10 and 5 units. The arrow on the top line with question mark is facing into the square. A. 5 units B. 10 units C. 15 units D. 20 units

Answers

The units of energy entering and leaving the system total 15 units. (Option C)

Why do we have the above as the right answer?

According to the rule of conservation of energy, "energy cannot be generated or destroyed; instead, it evolves from one form to another." Because you have not provided the given value, it is important to remember that the energy exiting the system equals the energy that entered the system.

In physics, energy is the quantitative quality that is imparted to a body or a physical system and is visible in the form of heat and light. The law of conservation of energy holds that energy can be transformed in form but cannot be generated or destroyed.

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Complete Question:

The energy entering the system is equal to the energy leaving the system. Based on the laws of conservation of energy, how many units of energy are entering the system?

5 units

10 units

15 units

20 units

examples and non examples of a isotope

Answers

Answer:

carbon-12, carbon-13 and carbon-14

Explanation:

this three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively.

What makes the rough ER
considered "rough"?
A. the ribosomes that are attached this
B. the presence of bacteria
C. the folds in the membrane

Answers

Option A. Because of the attached ribosomes, the rough ER is considered "rough."

When viewed through an electron microscope, the rough endoplasmic reticulum (RER) appears studded due to the ribosomes attached to its cytoplasmic surface.

The rough endoplasmic reticulum is primarily composed of sheets, which are a two-dimensional array of flattened sacs that span the cytoplasm. These membranes contain an important protein complex called the translocon, which is required for protein translation within the rough ER in addition to ribosomes.

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Answer:

a) the ribosomes that are attached

Explanation:

The ribosomes that are attached makes the rough ER considered "rough". This is also called as RER. Therefore, the option (a) is the correct answer.

The progressive series of changes that eventually produce a climax community on what was once a bare lava flow is an example of

Answers

Answer: primary succession is the correct answer

If you go to the dermatologist and he or she removes a mole, what do you think is done with that tissue sample?

Answers

Answer:

A doctor uses a circular tool to remove a small core of skin, including deeper layers (epidermis, dermis and superficial fat). Excisional biopsy. A doctor uses a small knife (scalpel) to remove an entire lump or an area of abnormal skin, including a portion of normal skin down to or through the fatty layer of skin. The mole is removed in a procedure under local anaesthetic. You will be given a local anaesthetic by injection at the place on your body where the biopsy will be taken from. The local anaesthetic may sting a little when it is injected, however, the skin will then go numb and the operation should be pain-free.

Explanation:Surgical excision:The dermatologist cuts out the entire mole and stitches the skin closed if necessary. Surgical shave: The dermatologist uses a surgical blade to remove the mole.

Challenges in sustainable development

can you explain this diagram.. I will mark you brainlist..


help... !!!!​

Answers

Answer:

Explanation:

environment is first then society then economy

A. vascular tissue
B. ground tissue
C. nervous tissue
D. dermal tissue
Which of the
following is NOT a
tissue you would
find in a plant?

C

Answers

Nervous tissue is not found in plant instead they have some different system to respond to stimuli.

Biologists are aware that there are additional ways to process information in addition to our neurological systems and those of other animals, including fish. Plants can react to stimuli despite not having neural systems. For instance, when an aphid bites a leaf, the plant responds by sending an electrical signal from leaf to leaf instructing it to begin defending itself.

However, it's crucial to remember that a plant does not necessarily feel pain when it reacts to injury.

Plants lack nociceptors, the particular receptor types that are hardwired to respond to pain, in contrast to humans and other animals. They naturally lack the brains essential to convert such sensations into actual experiences since they also lack brains.

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Describe and list the contents of the dural sinuses, subdural space, and subarachnoid space.

(help needed asap. thank u so much) :)

Answers

Dural sinues - Forms at the base of the three folds
Subdural - serous fluid
Subarachnoid space - blood vessels CSF

Question5
a) What is the primary way that muscle force is controlled?
b) Describe this phenomenon and explain how this relates to changes in muscle
circumference.

Question6:
Which of these two types of muscle contractions (Isotonic, Isometric) is used in the body to promote joint stability? Briefly explain your reasoning.

Answers

Answer:

Q5 a) he nervous system controls muscle force by varying both motor unit recruitment and rate coding.

     b) The central nervous system can increase the strength of muscle contraction by the following: Increasing the number of active motor units (ie, spatial recruitment) Increasing the firing rate (firing frequency) at which individual motor units fire to optimize the summated tension generated (ie, temporal recruitment)

Q6)  isometric contractions are active in maintaining posture and maintaining bone and joint stability.

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