S. aureus is gram positive. What differences in strains might account for differences in phage susceptibilities?

Answers

Answer 1

S. aureus is indeed gram-positive but within the bacteria classed as gram-positive, there are differences that might predispose them to infection by phages.

S. aureus as an organism usually adapts to their environment through mutations on their membranes which can be proteins e.g. surface proteins, or receptor molecules e.g. sugar receptors.

In preventing invasion by phages, mutations are gained that prevents attachment to the bacteria cell surface. This effectively prevents the binding of the phage to the bacteria thus preventing infection.

It is also worthy to note that the differences in bacteria strain could range from a few nucleotides to large variations in chromosomes and thus can aid in identifying specific strains that might have beneficial factors in the context of disease prevention.

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Related Questions

and this one pls thx ill mark brainliest

Answers

Answer: the brain already knows what to do.

Explanation:

brainilest me

Leaves are modified as tendrils for climbing as in
a) Cactus
b) Pea
c)Citrus
d)Bougainvillea​

Answers

Answer: pea

Explanation:

In the garden pea, it is only the terminal leaflets that are modified to become tendrils. In other plants such as the yellow vetch (Lathyrus aphaca), the whole leaf is modified to become tendrils while the stipules become enlarged and carry out photosynthesis.

Which items are TRUE about minerals? Select the three correct answers. (2 points)
Observing one property is often the best way to identify minerals,
Rocks are the components that make up minerals.
Minerals can only be identified by their color and hardness.
Minerals are the components that make up rocks.
O Minerals are naturally occurring substances
Minerals are made of one element or one compound of elements

Answers

Answer:

The correct answers are 1) minerals are the components that make up rocks. 2) Minerals can only be identified that make up minerals. 3) Minerals are made of one element or one compound of elements.

Explanation:

I took the test. I got this question wrong but after submitting it, the lesson should me the correct answer.

The items that are true about minerals are:

Minerals are naturally occurring substances.

Minerals are inorganic and homogeneous substances, which can be found on the surface of the Earth, formed in it naturally / spontaneously.

Minerals are made of one element or one compound of elements.

Minerals are found in various forms in nature since they can be of a single element, such as gold, silver, copper, or a combination of elements, such is the case of some chemical compounds such as quartz, which is formed by silicon and oxygen.

Minerals are the components that make up rocks.

A rock is a material that can be made up of a mineral or a combination of them, but its chemical composition is variable.

Therefore, we can conclude that a mineral is a substance produced by processes of inorganic nature which are made of one element or one compound of elements.

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What parts of our eyes help us see light?

Answers

Answer:

it's called the renting it controls the pupil

Fill out the data table below with the range of each factor that will produce the optimal number of oxygen bubbles.

Answers

The optimal ranges for the formation of oxygen bubbles vary between each plant, however, only water, c02, and temperature are limiting factors for photosynthesis.

This question is based on observations made during the course of an experiment designed to measure the optimal ranges at which oxygen bubbles form, given that these are an indication of photosynthesis.

Due to this, the information given will be generalized. Firstly, there is no exact optimal range of light for the formation of oxygen bubbles (photosynthesis) given that this is not a limiting factor.

Excess of light will have no effect on photosynthesis, only the lack of light can cause negative effects, therefore any light past the minimum threshold is fine.

On the other hand, water, light, and C02 are in fact limiting factors and have optimal ranges. For water, this optimal range varies greatly and therefore I cannot offer a general value, but an excess of water will "drown" plants by not allowing the formation of air pockets in the soil.

C02 sits at an optimal range of 1,000-1,300ppm for the best results. Lower concentrations cause a lower rate of photosynthesis given that it is the primary substrate for the process to begin. At too high levels, plants will have to adapt which can slow the process.

Finally, temperature is also a limiting factor for photosynthesis. Its exact value cannot be given since it varies greatly between plant species.

However, in general, terms, since it is an enzyme-dependent reaction, we can apply the general temperature at which enzymes function best which is around 37 degrees.

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Use the F=ma triangle to determine the mass of an object accelerating at a rate of 10m/s2 due to a force of 60N that was applied to that object.

Answers

Answer:

6

Explanation:

For this question it just takes a little bit of simple algebra. F=MA is an equation that will pop up again if you continue with an interest in science. F=MA actually say force=mass(acceleration). Which then is changed for this problem to M=F/A.

60/10=6

What change in the mass number of a nucleus occurs when the nucleus emits an alpha particle?

Answers

Answer:

Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.

Explanation:

Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.

Which of the following is released during cellular respiration?

Carbon dioxide
Glucose
Mitochondria
Oxygen

Answers

Answer:

carbon dioxide ( CO2 ) is released during cellular respiration

Answer:

Carbon dioxide

Explanation:

in the process of genetic profiling/dna fingerprinting, what is compared between two people/samples?

Answers

Answer:

"DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. If the two DNA profiles are a match, then the evidence came from that suspect." information from a website so reword it a bit and you should be ok.

In the process of genetic profiling/ data fingerprinting, genetic profiling is a process that can be compared between two people/samples.

What is genetic profiling?

DNA profiling compares only the most variable sections of DNA, which has an advantage over whole genome sequencing when seeking to identify genetic changes between two individuals.

In the field of biology known as comparative genomics, genome sequences from various species—including humans, mice, and a broad variety of other organisms—from bacteria to chimpanzees are compared.

"DNA fingerprinting is a lab method used to connect biological evidence to a defendant in a criminal investigation. A DNA sample from a suspect is compared to one acquired from a crime scene. The evidence originated from that suspect if the two DNA profiles match.

Therefore, genetic profiling is compared between two people/samples.

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Why is an atom said to be electrically neutral? Please i need further explanation​

Answers

Atoms are electrically neutral because they contain equal quantities of positively charged protons and negatively charged electrons. Electrons and protons have equal but opposite charges, so the result is no net charge.

If you help I'll give you a brain list

and for the record The question wants me to explain how the blood in the heart reaches the lungs

It's everything in the photo; all you have to do now is explain it.

Answers

Blood leaves the heart through the pulmonic valve, it then moves through the pulmonary arteries which branches to the left and right lungs.

When the deoxygenated blood reaches the lungs, it is then oxygenated and returns to the heart through our pulmonary veins.

Hope this better explains it!

what direction does rna polymerase synthesize rna?

Answers

Answer:RNA polymerase synthesizes an RNA transcript complementary to the DNA template strand in the 5' to 3' direction. It moves forward along the template strand in the 3' to 5' direction, opening the DNA double helix as it goes.

Explanation:

_______ is the backup energy molecule that can be used to rapidly regenerate depleted ATP in active skeletal muscle.

Answers

Answer:

Phosphocreatine

Explanation:

Someone plz help me :(

Answers

Answer:

it's a or c but I think it's a

The spread of information from one neuron to several neurons, or from one pool to multiple pools, is known as __________.

Answers

Answer:

Divergence

Explanation:

Divergence is the answer because divergence spreads information to several neurons.  

Genetic variation is needed for the long-term survival of a species.

True
False

Answers

True without genetic variation a single disease could dramatically reduce a species if they are susceptible to that disease. Genetic variations allows for a diverse gene pool that leads to long term survival for a species

Females have the chromosomes XY.

True
False

Answers

Answer:

False

Explanation:

The X chromosome is one of two sex chromosomes. Humans and most mammals have two sex chromosomes, the X and Y. Females have two X chromosomes in their cells, while males have X and Y chromosomes in their cells

(Hope this helps can I pls have brainlist (crown)☺️

Answer:

false

Explanation:

female have XX

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What is the conversion factor from km. to ft.? If Joe traveled 12 kilometers, how many feet did he travel?

Answers

Answer:

The distance traveled by Joe in feet is 39,372 ft:

Explanation:

The conservation factor from km to Ft is 1 km = 3280.84 feet.

* In order to convert the value-form km to ft then we multiply the given value of the length by 3281.

*We are given that:

*Distance traveled by Joe = 12km

*Distance in feet = 12×3281

*Distance in feet = 39,372 ft

**Thus, the Distance traveled by Joe in feet is 39,372 ft.

The conversion factor from kilometers to feet is 3280.84 feet/kilometer. This means that there are 3280.84 feet in every kilometer.

So, if Joe traveled 12 kilometers, he traveled 12 * 3280.84 = 39370.08 feet.

1 kilometer = 3280.84 feet

12 kilometers = 12 * 3280.84 feet = 39370.08 feet

Therefore, Joe traveled 39370.08 feet if he traveled 12 kilometers.

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if the woman and a man with normal clotting function have one biological daughter and one biological son, which children are predicted to have hemphilia A

Answers

The children Thats predicted to have hemophilia is the biological son

what is the alternate name for 0 degrees latitude

Answers

Answer:

the Equator

The Equator is the line of 0 degrees latitude.

Explanation:

I HOPE ITS HELP YOU

Answer:

0 degrees latitude is known as the equator.

Explanation:

hope this helps. . .

good luck!    uωu

ANYONE FROM K12 KNOW THE ANSWERS TO THIS PART OF THE 3.25 MITOSIS LAB??? I NEED HELP (no links)

Answers

Answer:

1. provide the correct order for the stages of mitosis

what are sunspots and how do they affect us?

Answers

Answer:

Basically, Sunspots are storms on the sun's surface that are marked by intense magnetic activity and play host to solar flares and hot gassy ejections from the sun's corona.

Explanation:

Question 3 of 10
What is immigration?
O A. When animals die in an ecosystem
O B. When animals are born in an ecosystem
O C. When animals move into an ecosystem
O D. When animals leave an ecosystem
SUBM

Answers

Answer:

the answer to your question is is c.

in what part of the given pathway is norepinephrine secreted?

Answers

Answer:

From the varicosities of the postganglionic fiberSource: Mastering A&P #10: The Sympathetic and Parasympathetic System - Quizlet

In the post-ganglionic fibers in the sympathetic division.

which division of the ans is associated with the fight-or-flight response?

Answers

It is in the Sympathetic Division

A key limitation of the coefficient of community is that it lacks the ability to:

Answers

Answer:

calculate the similarity between two communities.

Explanation:

which is a wildlife species category that state resource agencies may use

Answers

Answer: Large mammals, Small mammals, Upland birds, Waterfowl and wetland birds, Birds of prey.

Wildlife species are defined as undomesticated animal, plant, or organism that grows in the wild and are not introduced to humans. The species that can be used by the state resource agencies are large mammals, small mammals, birds of prey, and waterfowl.

The animals that can be hunted legally must be:

The animal can be used as food and should be useful. The population of the animals should be high. The hunters should have a challenge while hunting them.

Also, some species labeled as endangered must be protected by law. These species are on the verge of getting extinct and are present in the least numbers to harvest.

Thus, the state agencies may use large mammals, small mammals, and waterfowl.

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3. The abilities to dissolve in water and to conduct electricity are examples of

A. natural properties.
B. chemical properties.
C. natural laws of matter.
D. physical properties.​

Answers

Answer:

D

Explanation:

When protons are actively transported across the cristae membrane in mitochondria to set up a proton gradient between the inter-membrane space and the mitochondrial matrix, this is referred to as___________________

Answers

Answer:

Explanation:

Heres where to get your answer

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in which phase of the cell cycle do cells check to determine whether the dna is fully and correctly replicated?

Answers

Answer:

at the end of G2

Explanation:

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