A reseacher was studying mutations in bacteria.he found that certain bacteria had changes in their dna that allowed them to be resistant to antibotics.this research is an example of. The mutation will lead to

Answers

Answer 1

Answer: 1.B). Evolution genetics.

2.C). Less Bacteria becoming resistant to the specific Antibiotics .

Explanation:

Evolution genetics is field of science, which includes study of genetic variations that lead to evolutionary changes in organisms. As some bacteria had changed their DNA that led to development of antibiotic resistance in them.

Due to antibiotic resistance, certain bacteria, in which changes in DNA take place, become resistant against some type of antibiotics and those antibiotics are no longer effective to prevent or kill them

Thus, the correct options to be filled in the blanks are option (B) and option (C).


Related Questions

What explains the presence in living humans of DNA sections which are identical to DNA
found in Neanderthals who lived 40 000 years ago?

Answers

Answer:

It can be explained by hybridization among human and neanderthal ancestral populations.

Explanation:

Next-generation sequencing (NGS) technologies coupled with bioinformatics tools have enabled to confirm admixture between Neanderthals and humans. The technique to identify admixture events consists in discovering nucleotide regions from neanderthal genomes that could be inserted in human genomes, thereby the observed sequence homology must be statistically significant (e-value). This emergent research field is known as paleogenomics.

Which of the following is a type of action, assistance, or information that a genetic counselor can provide? Check all that apply.

Calculate the risk of a child inheriting a genetic disorder.

Look for patterns of inheritance in a client’s family history.

Prescribe a medication to help with a client’s anxiety.

Explain causes and inheritance patterns of a genetic disorder.

Recommend the best of several long-term options for a client.

Explain what genetic tests are available and what information they would provide.

Interview a client to obtain details of the family’s medical and genetic history.

Order a test to be done without the client’s approval if it would provide useful information.

Answers

Answer: Calculate the risk of a child inheriting a genetic disorder.

Look for patterns of inheritance in a client’s family history.

Explain causes and inheritance patterns of a genetic disorder.

Recommend the best of several long-term options for a client.

Explain what genetic tests are available and what information they would provide.

Interview a client to obtain details of the family’s medical and genetic history.

Explanation:

The genetic counseling will involve the following steps:

1. The counselors check the family medical history and medical records of parents to estimate the chances of inheritance of genetic disorder or disease in a developing fetus.

2. The counselors order genetic testing.

3. The counselors evaluate the results of the tests.

4. They counsel parents based on the results and recommend them the long term options to prevent the effect of disease.

Answer:

1  2  4  6  7

Explanation:

Through logic and the prosess of elimenation I found the answers.

Which of the following is a benefit of globalization?
A. There is an increase in piracy of cargo ships in international
waters.
B. People do not usually venture far from where they were born.
C. Products can be flown to the other side of the world in less than a
day.
D. Advances in technology allow energy resources to produce less
pollution

Answers

Answer:

C

Explanation:

More products can ensure people have a normal life as others and everyone will benefit

The correct option about Globalisation is “Advances in technology allow energy resources to produce less pollution”.

What is Globalisation ?

The integration between the world economic system and the domestic economic system is referred to as globalisation. In different words, it can be described as a technique related to developing openness, developing economic interdependence and deepening economic integration inside the world economic system.

Thus, we can conclude that Globalisation leads to advancement in technology and hence allow energy resources to produce less pollution.

Learn more about Globalisation here:

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What happens to grasslands and wetlands as forests are used up?

Answers

Answer:

they dry

Explanation:

because forests are sources of rain and without rain wetlands can't have water and grass can't grow n grassland

Answer:

they become really dry good luck men

A channel protein specific for calcium ions was found to have a pore lined with six glutamate residues that participate in coordinating the calcium ion. What would happen to the selectivity of the pore if the Glu residues were mutated to Asp residues

Answers

Answer:

If the mutation takes place, then the shorter side chains of asp compare to Glu  will affect the permeability of the transport protein to calcium ions. Specifically,  the mutation will  increase the sizes of the pore,which in turn decreases the selectivity  for calcium ion. Hence this affect excitability of the cell.

Explanation:

g One can measure ATP production from isolated mitochondria in vitro (in a test tube). Changing the pH of the solution that the mitochondria are in results in a similar change the pH of the intemembrane space. If the pH of the solution that the isolated mitochondria are in is raised and everything else remains constant, what is the effect on ATP synthesis

Answers

Answer:

This will lead to an  decreases  in the ATPs synthesis. This is because low pH , high acidity favours ATP synthesis, because it increases the  proton concentration for electrochemical gradients needed for energy that  ATPase enzymes makes used of   synthesis  of ATPs.

Therefore a rise in the pH(low acidity) lowers protons levels, and therefore reduced electrochemical gradients , with a drop in energy for ATPs synthesis.

Explanation:

Identify whether flexion or extension is occurring in the following situations:
1. Intervertebral foramen gets smaller
2. Anterior longitudinal ligament becomes taut .
3. Anterior annulus bulges slightly Spinous processes approximate
4. Facet joints compress
5. Posterior annulus becomes taut
6. Space for nerve roots gets larger
7. Superior vertebral body translates anteriorly

Answers

Answer:

Explanation:

1. Intervertebral foramen gets smaller - Extension

2. Anterior longitudinal ligament becomes taut - Flexion

3. Anterior annulus bulges slightly Spinous processes approximate - Flexion

4. Facet joints compress - Extension

5. Posterior annulus becomes taut - Extension

6. Space for nerve roots gets larger - extension

7. Superior vertebral body translates anteriorly - flexion

Vhat do scientists need to look at before developing an argument?

The validity of data, claims, hypotheses, and observations.

Their opinion and personal views.

The arguments of famous people on the topic.

The arguments that make the most sense for society.

Answers

Answer:

The validity of data, claims, hypotheses, and observations.

Explanation:

Making an argument and discussion over the scientific arguments are considered important to the scientific method.

The argument should be made in a way that it should check the validity of the hypothesis. The scientist who has to make an argument should consider various steps of scientific method like hypothesis which should predict the explanation of the natural phenomenon.

The person should consider the validity of the data whether it supports the hypothesis or not and observation of the experiment.

Thus, the selected option is the correct answer.

Answer:

A

Explanation:

The validity of data, claims, hypotheses, and observations.

edge 2020

1. What were the first living things on Earth?​

Answers

Answer:

prokaryotes

Explanation:

Prokaryotes that’s the answer

Which statement best explains why fermentation occurs in mammals? It enables mammals to generate additional ATPATP in an oxygen‑rich environment. It breaks down lactic acid to generate a small amount of ATPATP under anaerobic conditions. It generates ethanol, which can be used as an alternative source of energy. It produces an acid that maintains blood pH within a narrow range. It allows glycolysis to continue under anaerobic conditions by replenishing NAD+NAD+ .

Answers

Answer:

The last option.

Explanation:

Fermentation/ Anaerobic respiration is important to supply ATP in the absence of oxygen.

In the presence of oxygen, glycolysis, Kreb's cycle and oxidative phosphorylation happen to provide about 32 ATP molecules. In its absence, only glycolysis can take place because it's the only step that doesnt need oxygen, to give a net supply of 2 ATP.

Even though glycolysis doesn't need oxygen, it needs NAD, and if the reduced NAD doesn't lose its hydrogens via oxidative phosphorylation, pyruvate (the end product of glycolysis) becomes the recipient of the hydrogen.

Pyruvate gets reduced to lactate.

The correct answer as to which best explains why fermentation occurs in mammals would be that it breaks down lactic acid to generate a small amount of ATP under anaerobic condition.

Aerobic respiration takes place in 3 steps:

Glycolysis: during which glucose is converted into pyruvate molecules with 2 ATP and 2NADH molecules produced.Citric acid cycle: during which pyruvate molecules from glycolysis  are converted to CO2 with ATP, NADH, and FADH2 generatedElectron transport chain: during which the NADH and FADH2 produced in citric acid cycle are used to generate ATP.

When oxygen becomes inadequate during rigorous activities in human cells, pyruvate molecules cannot proceed to the citric acid cycle due to lack of oxygen. Instead, the pyruvate molecules are converted to lactic acid through fermentation to generate 2 molecules of ATP.

More on lactic acid fermentation can be found here: https://brainly.com/question/2095032

What does lung hyperinflation stimulate (write on both lines)​

Answers

Answer:

What does lung hyperinflation stimulate? ... Dust, smoke, and noxious fumes will stimulate receptors in airways.

Explanation:

please mark me as brainliest i hope this helped you... : D

Which fossil fuel should be available for the longest time if current usage continues?

Answers

Coal
Coal and natural gas are expected to last a little longer. If we continue to use these fossil fuels at the current rate without finding additional reserves, it is expected that coal and natural gas will last until 2060. However, the consumption of natural gas grew considerably last year, rising by 4.6%.

hello there.
Explain that different sequences of amino acids give different shapes to protein molecules

Answers

Explanation:

The sequence of amino acids in the chain determines how the chain will fold up to make the protein, so different proteins have different three-dimensional shapes. ... This is because proteins form attachments and interact with many other molecules and structures inside organisms.

What would happen if a membrane protein were unable to bind with signaling molecule

Answers

Messages won’t be sent to the inside of the cell.
Hope this helps!!:)

A stream or river that runs into another stream or river is called a​

Answers

Answer:

tributary

Explanation:

A tributary is a river that runs into another river.

What tipe of cactus is this? ​

Answers

Answer:

Hey!

I think it is the San Pedro Cactus!

Explanation:

i have one at home just like that!

HOPE THIS HELPS!!

Answer:

san pedro

Explanation:

Which step of the scientific method do you perform after you collect data and
observations?

Answers

Answer: Draw a conclusion about your hypothesis

Explanation:

If the results match up, then the data supports the hypothesis and thus, the hypothesis itself SUPPORTS the idea that you're studying. Afterward, discuss the experiment with your peers.

Never say that a hypothesis has been proven, because you are not proving anything, it is support.

What is the difference between Palm trees and mosses ?

A- Palm trees have leaves , while mosses do not.

B- Palm trees are large , but mosses are small.

C- Palm trees have roots and mosses do not.

D- Palm trees produce flowers while mosses do not.

Answers

Answer:

Palm trees produce flowers whiles masses do not

D. Palm trees produce flowers while mosses do not

Which species is likely to exhibit random dispersion?
A.
rushes that grow on the edges of bodies of water
B.
orchid plants that grow on the branches of a particular tree species
C.
squirrels that actively defend their territory against other squirrels
D.
frogs that live along the edges of ponds and streams
E.
sweetgum, a tree species with wind-dispersed seeds

Answers

Answer:

E

Explanation:

E because....

The other options mention species that occupy niche environments and would therefore definitely not be randomly dispersed. Rushes and frogs would be found along the edges of water bodies, squirrels would be found within appropriate environments, which would be acorn tree forests and orchid plants also occupy a particular tree.

The correct option is E.

What is random dispersion?

In random dispersion, individuals are distributed randomly, without a predictable pattern. An example of random dispersion comes from dandelions and other plants that have wind-dispersed seeds.

Is random dispersion rare?

In natural populations, random dispersion is rare, while clumped dispersion, which we'll focus on in this lesson, is the most common pattern. Clumped dispersion is often due to an uneven distribution of nutrients or other resources in the environment. It can also be caused by social interactions between individuals.

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The woman marked with a question mark is your friend. Knowing that you are taking Genetics, she comes to ask you for advice: she wants to have children, but is afraid that they will be sick with the disease. Her husband and her mother have no family history of HD. What is the probability that she is sick? What is the probability that her children will be, without knowing her own status regarding the disease?

Answers

Answer:

Explanation:

The woman with the question mark is not sure if she has the HD disease,

The mother had no history of the disease this means she is not a carrier of the disease but we are not sure of the fathers genotype.

If the father is a carrier in an homozygous dominant form(aa) and the mother does not have the disease her. gentotype is AA

A A ×aa

Aa Aa Aa Aa This means all their offspring will be Carrier of the disease because each parents contributes 50% of the gene their offspring is made of.

The probability that she is sick is 0% but she could be a carrot of the disease in an heterozygote form

If the woman who is a carrier (Aa)of the disease marries a man with no history of the disease(AA)

Aa ×AA

I

AA AA Aa Aa

The probation of their offspring being a carrier in heterozygous form is 50% while the probability of the offspring being dominant of the disease is 0%. Hence, she should not be afraid since her mother and husband who could have contributed to determining the gene of this offspring are not carriers of this gene the offspring are safe.

You are working with an amateur bodybuilder who is 12 months out from a bodybuilding competition. Design a year-long periodized training program for the athlete with the objective of optimizing the client’s physique at the time of the competition. The training program should include the following:A list of assessments to be performed at the onset of the training programA warm up and cool down for each training dayA detailed year-long periodized training program including specific exercises, sets, repetitions, suggested rest times, etc. The program should include a Foundational Training phase, a Hypertrophy phase, and a Cutting phase.An explanation as to why you made your recommendations for each phase of training.Nutrition and supplement recommendations to support the bodybuilder during each phase of training.

Answers

Loll not the answer from me

select all that apply natural selection
1. is random
2. favors organisms well adapted to the environment
3.cannot work if beneficial traits are not hereditary
4. is often called survival of the fittest

Answers

Answer:

the answer is 2. favors organisms well adapted to the environment

2 and 4 because asdkgififhsrhovhxhzsy

Does specific heat also mean the amount of energy needed for cooling, or is it only energy for heating?

Answers

Answer:

yes it does

here is a more clearer explanation

Explanation:

The specific heat capacity of water is 4,200 Joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C.

Some other examples of specific heat capacities are:

Material Specific heat capacity (J/kg/°C)

Brick 840

Copper 385

Lead 129

Lead will warm up and cool down fastest because it doesn’t take much energy to change its temperature. Brick will take much longer to heat up and cool down. This is why bricks are sometimes used in storage heaters as they stay warm for a long time. Most heaters are filled with oil (1,800 J/kg°C) or water (4,200 J/kg°C) as these emit a lot of energy as they cool down and, therefore, stay warm for a long time.

The specific heat capacity of a material is the energy required to raise one kilogram (kg) of the material by one degree Celsius (°C).

Yes it also means the amount of energy needed for cooling

Ill mark you as Brainliest and give you points !!!!!

Answers

The first one is B and the second one is B , brainliest would appreciated

Answer:

The independent variable is:

the factor that is changed in an experimentthe change does not depend on other factors

The dependent variable is:

what is going to be affectedwhat is being testedwhat is being observed or measured

An object is moving east, and its velocity changes from 65 m/s to 25 m/s in 10 seconds. Which describes the acceleration?

8

4 m/s2 in negative acceleration

4 m/s2 in positive acceleration

9 m/s2 in positive acceleration

9 m/s in negative acceleration

Save and Exit

Next

SED

Mark this and return

Answers

Answer:

4 m/s2 in negative acceleration

Explanation:

From the question.

Acceleration= change in velocity ÷ time.

V1-V0÷time.

That is final velocity minus initial velocity divided by time.

25-65÷10.

-40/10=4m/s.

The acceleration is -4m/s.

The answer is 4m/s negative acceleration.

Answer:

A

Explanation:

Got it right when submitted

A variety of factors influence enzyme activity. Substances that bind to the enzyme and interfere with substrate binding or catalysis are inhibitors. Identify the type of inhibition associated with each of the descriptions and examples by classifying each statement as irreversible, competitive, or mixed inhibition.

Answers

Answer:

Explanation:

Irreversible inhibitors are inhibitors whose action are not reversible. They function by modifying enzyme in a covalent way leading to the formation of new functional group.

Irreversible inhibitors are specific to certain enzymes. Examples is inhibitor that are suicidal they makes inhibitor reactive.

Competitive inhibition are Inhibitor that are competitive in nature they resemble one of the substrate of the enzyme and are been bind to by mistake. Example is an inhibitor that resemble folate an enzyme substrate. Enzyme therefore binds to the inhibitor assuming its folate because they are identical.

Albino is a rare recessive genetic disease. Sally and her parents are normal but her sister is albino. It seems that Sally has chance to carry the albino allele. If she marries a normal person with no family history of albinos, what is the chance for Sally's first baby to be a carrier of the recessive allele?

Answers

Answer:

2/3 ×2/3× 1/4

Explanation:

Albino is a rare recessive genetic disorder which is characterized by low production of melanin or no melanin production. It is an inheritable disorder can be pass from generation to generation. Since the parent of Sally has no Albino and Sally sisters has, it means there is an history of Albino in the family that make her sister to have. She has 2/ 3 chance of having and the possibility that her first child will have is 1/4 meaning 25% because her hubby has no Albino history in their family.

what cell structure is largely responsible for controlling the entry and exit of substances into or out of the cell?​

Answers

Answer:

plasma membrane

Explanation:

The plasma membrane is also known as the cell membrane. It is the boundary between the internal components of a cell and its external surroundings. It controls the entry and exit of substances into or out of the cell and thus, facilitates the exchange of substances between the cells and their external environment.

15. How are mitochondria similar to prokaryotic cells?

Answers

Answer:

Mitochondria have their own cell membranes, just like a prokaryotic cell does. Each mitochondria has its own circular DNA genome.

Explanation:

The color varieties of sunflower pollen are determined by two interacting loci: A_B_ gives orange pollen, aaB_ gives yellow, and _ _bb produces cream colored. Assume that two fully heterozygous plants are crossed. Give the phenotypes (with frequencies) of the offspring. What type of gene interaction would account for these results?

Answers

Answer:

This is an illustration of epistasis type of gene interaction.

Explanation:

On crossing AaBb * AaBb, the offspring produced are mentioned in the Punnett square given in the attachment below. Based on the Punnett square, the phenotypic ratio will be 9 (orange): 4 (cream) : 3 (yellow).  

The given case is an illustration of the epistasis kind of gene interaction. When two or more distinct gene loci take part in the formation of similar phenotype, however, not additively is termed as epistasis, that is, it is the non-allelic association between the alleles situated at a distinct gene locus. In the phenomenon of epistasis, one of the gene loci modifies or masks the phenotype of a second gene locus.  

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