E. coli strain B is doubly infected with two rII mutants of phage T4. 0.2 ml of a 108 dilution of the progeny is plated on E. coli B and 0.1 ml of a 104 dilution of the progeny is plated on E. coli K. 16 plaques appeared on strain B, 400 on strain K. Calculate the recombination frequency between these two mutations.

Answers

Answer 1

To Find :

The recombination frequency between these two mutations.

Solution :

Formula of calculating recombination frequency is :

[tex]R.F = \text{Number of mutations}\times \dfrac{\text{number of k plaques} \times D.F }{\text{Volume used}}\times \dfrac{Volume'}{\text{Number of B plaques} \times D.F' }}[/tex]

Putting all given values in above equation, we get :

[tex]R.F = \dfrac{2\times 400\times 0.2 \times 10^4}{16\times 0.1\times 10^8}\\\\R.F = 0.01[/tex]

Therefore, the recombination frequency between these two mutations is 0.01 or 1 %.

Answer 2
The recombination frequency between these two mutations will be "0.01".

Given:

No. of mutation = 2Volume, [tex]V = 0.1[/tex]

                     [tex]V'= 0.2[/tex]

k plaques = 400

The formula:

→ [tex]R.F = No. \ of \ mutations\times \frac{No. \ of \ k \ plaques\times D.F }{Volume}\times \frac{Volume'}{No. \ of \ B \ plaques\times D.F'}[/tex]

By putting the values in the above formula, we get

→         [tex]= \frac{2\times 400\times 0.2\times 10^4}{16\times 0.1\times 10^8}[/tex]

→         [tex]= \frac{160\times 10^4}{1.6\times 10^8}[/tex]

→         [tex]= 0.01[/tex]

Thus the solution above is the right approach.

Learn more about frequency here:

https://brainly.com/question/22387406


Related Questions

discuss the adaptations enabling the move of charophyte algea to land

Answers

Plant adaptations to life on land include the development of many structures — a water-repellent cuticle, stomata to regulate water evaporation, specialized cells to provide rigid support against gravity, specialized structures to collect sunlight, alternation of haploid and diploid generations, sexual organs. There are four major challenges to plants living on land: obtaining resources, staying upright, maintaining moisture, and reproducing. Obtaining Resources From Two Places at Once Algae and other aquatic organisms acquire the resources they need from the surrounding water

Describe some global patterns of atmospheric movement that might influence local weather.

Answers

Answer:

A mountain range in the path of prevailing winds can influence where precipitation falls. When humid winds blow from the ocean toward coastal mountains, they are forced to rise. The rising air cools and its water vapor condenses, forming clouds

How do plate tectonics support evolution

Answers

Answer:

Explanation: because they caused redistribution between continents, create volcanos and mountains that help populations adapt

Question 9 of 25
Which is an example of current electricity?
A. Positively charged particles are attracted to negatively charged
particles.
OB. Negative and positive electric charges build up in different regions
of a cloud.
OC. Electrons flow from an outlet into a toaster, causing it to heat a
slice of bread.
OD. A person rubs a shoe on a rug, causing extra electrons to be
transferred to the shoe.

Answers

OC

because Electric current is the flow of electrons through a complete circuit of conductors. It is used to power everything

Answer:

OD is an example of current electricity

Credit cards can help
time regularly.?


when paid off on
build credit history

act as a form of identification

lower your debt

balance your checking account

Answers

Answer: build credit history

Explanation:

If one wants to build their credit history, one of the most basic ways is to get a credit card, spend from that credit card and then and make timely payments on the card.

This will build your credit as it will prove that you pay off debts on a timely basis and are therefore less of a credit risk.

Answer:

build credit history

Explanation:

how do the sea birds
contribute to the the pphosphoruos cycle​

Answers

Answer:

Phosphorous returns to the earth through fish harvest and the collection of fertilizer made by seabirds.

Explanation:

Seabird droppings, also known as guano, can be used as commercial fertilizer, in addition to being vital in terms of the number of nutrients in marine ecosystems.

Two yeast cells were placed into a special container to which food was continually added, to keep it at a constant concentration. All other factors were set for optimal yeast growth (for example, temperature, oxygen, and pH). The population was sampled every hour for 21 hours and the results of the estimated population size were recorded in the table below.

Answers

Answer:

Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.

Explanation:

Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.

Why is it necessary for gametes to be
haploid?
A. to ensure the cell is not too big
B. gametes are not haploid
C. to restore the diploid number of chromosomes

Answers

Answer: I think it’s C. to restore the diploid number of chromosomes

Explanation:

i don’t have a explanation but i mean if it’s wrong... sorry lol

point)
This is turned to bring the object being viewed closer.

Answers

Answer:

Revolving nosepiece

Explanation:

The revolving nosepiece (also called the turret) is the part of the microscope we can turn in order to view an object through different objective lenses. Objective lenses, which provide different levels of magnification (usually 4x, 10x, 40x, and 100x), are all attached to the revolving nosepiece. It allows us to switch lenses from those that provide less magnification to those that provide more. This is how we can see more details on an object we're observing.

You can see what this part of the microscope looks like in the image attached below:

whale is a mammal give reasons​

Answers

Answer:

Because

Explanation:

Whales, along with dolphins and porpoises, are warm-blooded mammals and breathe air like humans do. There are some significant differences between whales and fish: ... Fish use gills to extract air from water. Whales give birth to live young.

A scientist fused a mouse cell and a human cell, then treated the cell with specific antibodies covalently linked to colored fluorescent dyes (antibodies to mouse proteins were labeled green; antibodies to human proteins were labeled red). Forty minutes later, what will the researcher observe

Answers

Answer:

The researcher observes a hybrid cell.

Explanation:

When a researcher perform an experiment in which he fused mouse cell with a human cell, a hybrid cell is formed. This fusion is done in the presence of Sendai virus which helps to combine two different types of cells with each other and produced a hybrid cell. These somatic hybrid cells contain the entire part of the mouse genome and a few number or parts of human chromosomes.

Can someone pleaseeeee helpppp!!!!!!

Answers

Answer:

True someone with type o receives o each from a parent

which of the following statesman's is correct.

1.green plants are the only organisms that photosynthesize.

2. photosynthesis turns sunlight into glucose.

3. photosynthesis occurs in the cytoplasm of eukaryotes and prokaryotes.

4.photosynthesis occurs in the chloroplasts of eukaryotes and cytoplasm of some prokaryotes.​

Answers

The fourth statement is the only correct statement since prokaryotes don't have chloroplasts

Help me plz. Reeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

I think oxygen

Explanation:

The bullfrog, Rana catesbeiana, is most closely related to

Answers

Answer: It is most related to a spotted chorus frog

I hope this helps, and Happy Holidays! :)

Answer:

The bullfrog, Rana catesbeiana, is most closely related to the spotted chorus frog, Pseudacris clarki Asian flying frog, Polypedates leucomystax.

A student is breeding beta fish to sell. The original population of fish he uses to start the breeding has a mixture of red fish, blue fish and purple fish. Purple are the most desirable fish. If the student uses selective breeding, which statement best describes how the population of fish will change over time?

Answers

Answer:

B  

The percent of purple fish in the population will increase and the percent of red fish and blue fish will decrease over several generations.

Explanation:

The chemical reaction of water and carbon dioxide to form sugar is ... reaction in terms of molecules.

Answers


20 words do be annoying

what are the secondary sexual characteristics discuss each one of them​

Answers

Answer:

Differences in size between sexes are also considered secondary sexual characteristics. In humans, visible secondary sex characteristics include pubic hair, enlarged breasts and widened hips of females, and facial hair and Adam's apples on males.

Explanation:

On Earth, what process generates most of the water vapor?

Answers

Answer:

Evaporation

Explanation:

Vinblastine is a standard chemotherapeutic drug used to treat cancer. Because it interferes with the assembly of microtubules, its effectiveness must be related to Group of answer choices disruption of mitotic spindle formation. inhibition of regulatory protein phosphorylation. suppression of cyclin production. inhibition of DNA synthesis.

Answers

Answer:

The correct answer is ''disruption of mitotic spindle formation.''

Explanation:

Vinblastine blocks mitosis by inhibiting the formation of microtubules in the mitotic spindle, which results in the interruption of cell division in the metaphase stage, thus having a specific action of the M phase of the cell division cycle . Its activity may also be related to an interference of the amino acid metabolic pathways that lead from glutamic acid to the citric acid cycle and to urea.

2. Protein A has a binding site for ligand X with a Kd of 10-6M. Protein B has a binding site for ligand X with a Kd of 10-9M. Which protein has a higher affinity for ligand X

Answers

Answer:

Protein B has a higher affinity for ligand C than protein A

Explanation:

Binding affinity is a measure of the strength of the bonds or interactions between a single biomolecule or receptor to its ligand. A ligand is usually a small molecule that binds to a specific receptor.

The receptor is usually a large molecule that contains a specific site for the binding of ligand.

Binding affinity is usually measured by the equilibrium dissociation constant (KD). The equilibrium dissociation constant KD is a ratio of the dissociation and the association of ligand to the receptor. The value of KD is used to evaluate and compare the strengths of bimolecular interactions.  The larger the KD value, the more weakly the target molecule and ligand are attracted to and bind to one another.

The higher the dissociation constant (KD), the weaker the affinity is between the interacting molecules, whereas, the smaller the KD value, the greater the binding affinity of the ligand for its target.

Protein B has a KD value of 10⁻⁹ M while Protein A has a KD of 10⁻⁶ M.

Ration of KD of protein B to protein A = 10⁻⁹ M/10⁻⁶ M = 10⁻³

Therefore, protein B has a KD value which is 1000 times smaller than the KD of protein A.

What cellular function does the respiration rate represent

Answers

Answer:

Uh, Cellular Respiration

Explanation:

Um... if this isn't it, I have no idea.

I second the notion of the other answer, I’d go w/ cellular respiration

The practice of science can answer only scientific questions. And scientific
questions guide the design of investigations. What is usually true of the
possible answers to a scientific question?
A. They can lead to additional questions about the phenomenon.
B. They overturn an established scientific theory.
OC. They lead to the discovery of.a new scientfic law.
OD. They remove the need for further scientific inquiry.

Answers

Answer:

A scientific question is usually guided by a hypothesis which can lead to additional questing about the phenomenon (A).

Please rate positive and give brainlist for future help!

Explanation:

A scientific question can lead to additional questions about the phenomenon. The correct option is A.

What is a scientific question?

A scientific question is one that could result in a hypothesis and assist us in determining the cause of an observation.

A good scientific hypothesis must be verifiable and quantifiable. You can perform an experiment to find the solution. eschews all opinions of any type.

A scientific question is testable, to put it simply. A testable inquiry is one that focuses on things, creatures, or occurrences in our immediate environment.

By examining quantifiable data and supporting evidence, it can be resolved by experimentation, observation, or other data collection methods.

A scientific query can spawn more inquiries into the phenomenon.

Thus, the correct option is A.

For more details regarding scientific question, visit:

https://brainly.com/question/17752552

#SPJ5

Which protist is characterized by a pseudopod?​

Answers

Answer:

if you're taking the unit test the answer is sarcodine

Explanation:

Any four effect of snowslide​

Answers

Explanation:

An avalanche (also called a snowslide) is an event that occurs when a cohesive slab of snow lying upon a weaker layer of snow fractures and slides down a steep slope. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack (slab avalanche) when the forces of the snow exceed its strength but sometimes only with gradual widening (loose snow avalanche). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough, some of the snow may mix with the air forming a powder snow avalanche, which is a type of gravity current.

Answer: ATTENTION THERE

IS A

PENIS VIRUS

PENUS

ALL TAMPONS.

⢀⣀⣠⣤⣤⣴⣦⣤⣤⣄⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⢀⣤⣾⣿⣿⣿⣿⠿⠿⠿⠿⣿⣿⣿⣿⣶⣤⡀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⣠⣾⣿⣿⡿⠛⠉⠀⠀⠀⠀⠀⠀⠀⠀⠉⠛⢿⣿⣿⣶⡀⠀⠀⠀⠀ ⠀⠀⠀⣴⣿⣿⠟⠁⠀⠀⠀⣶⣶⣶⣶⡆⠀⠀⠀⠀⠀⠀⠈⠻⣿⣿⣦⠀⠀⠀ ⠀⠀⣼⣿⣿⠋⠀⠀⠀⠀⠀⠛⠛⢻⣿⣿⡀⠀⠀⠀⠀⠀⠀⠀⠙⣿⣿⣧⠀⠀ ⠀⢸⣿⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⢀⣿⣿⣷⠀⠀⠀⠀⠀⠀⠀⠀⠸⣿⣿⡇⠀ ⠀⣿⣿⡿⠀⠀⠀⠀⠀⠀⠀⠀⢀⣾⣿⣿⣿⣇⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⠀ ⠀⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀⢠⣿⣿⡟⢹⣿⣿⡆⠀⠀⠀⠀⠀⠀⠀⣹⣿⣿⠀ ⠀⣿⣿⣷⠀⠀⠀⠀⠀⠀⣰⣿⣿⠏⠀⠀⢻⣿⣿⡄⠀⠀⠀⠀⠀⠀⣿⣿⡿⠀ ⠀⢸⣿⣿⡆⠀⠀⠀⠀⣴⣿⡿⠃⠀⠀⠀⠈⢿⣿⣷⣤⣤⡆⠀⠀⣰⣿⣿⠇⠀ ⠀⠀⢻⣿⣿⣄⠀⠀⠾⠿⠿⠁⠀⠀⠀⠀⠀⠘⣿⣿⡿⠿⠛⠀⣰⣿⣿⡟⠀⠀ ⠀⠀⠀⠻⣿⣿⣧⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣾⣿⣿⠏⠀⠀⠀ ⠀⠀⠀⠀⠈⠻⣿⣿⣷⣤⣄⡀⠀⠀⠀⠀⠀⠀⢀⣠⣴⣾⣿⣿⠟⠁⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠈⠛⠿⣿⣿⣿⣿⣿⣶⣶⣿⣿⣿⣿⣿⠿⠋⠁⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⠛⠛⠛⠛⠛⠛⠉⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Answers

Answer:

Thats cool, did you make yourself?

Explanation:

Use the map to answer the following question:

Answers

Answer:

Hello, what is the questiom=n?

Explanation:

Explain how trees can be producers and yet the smalest trophíc level in a pyramid of nurnbers

Answers

Answer:

they give food to animals as well as human all so

Answer:

This is because there may be one large producer or a small number of very large producers. For example, adult oak trees are extremely large and a single one may be home to hundreds of organisms. Thus, the number of organisms in the lower level of the pyramid of numbers will be less.

Explanation:

Write a sentence about earthworms, using the words, exposure and hydrated.

Answers

Earthworms like staying under dirt because it shields their delicate bodies from exposure. Earthworms have no defensive shell or strong skin so they stay in dampness. The moist, cool earth keeps the worms hydrated.

__________ fabric wrinkles less than ____________ fabric.
Linen, synthetic
Jute, Synthetic
Cotton, synthetic
Synthetic, cotton

Answers

Answer:

the answer to this question is option C mark me as brainliest

Other Questions
Which answer choice below best explains some of the responsibilities and powers that can be found in the executive branch of government in the United States Which has more mass Helium or mass Write one original sentence using the following comparisons, the example sentences done in class as your model,1- ms + adjective + que2- menos + adjective + que3- mayor que4- menor que Any help please I appreciate it if u lend a helping hand plzzzzz start at -3.5 and then add to that 4.2. As if you were walking from -3.5 on the number line up 4.2 steps to the right. Where would you land? Solve for xIf you dont know how to do it dont answer Marc wants to know if the mean age of the prison population in his city is less than 26 years. He obtains a random sample of 25 prisoners, and finds a mean age of 24.4 years and a standard deviation of 9.2 years. Ata significance level of 0.05, what is his conclusion? Nancy had eighty - two dollars to spend on six books. Afterbuying them she had sixteen dollars. How much did each book cost? Which description best matches a cold front? What is the inverse of the function f(x) = 1/4x - 12?Oh(x) = 48x - 4Oh(x) = 48x + 4O h(x) = 4x - 48O h(x) = 4x + 48 International sectorVery short answer:with whom the Rana's maintained relationsbefore 2007 BS? Which is an example of a crime against a person?A. Cheating on a testB. Leaving military service without approvalC. Injuring a strangerD. Refusing to pay taxes What happens after Mina is hypnotized, every time? Name the property that the statement illustrates. and this also......... Jordan hiked to the top of a mountain. He started the hike at 8:30 A.M. It took 2 hours and 15 minutes to get to the top of the mountain and 1 hour and 30 minutes to hike back down. What time was it when Jordan finished the hike?Please help me fast!!!! just need a paragraph for each.what is the authors argument? what should black Americans do in response to the onset of Jim Crows Laws? (Booker T. Washington's "Atlanta Exposition")briefly summarize why each man feels that way. what are his reasons for suggesting what he does? (W.E.B. DuBois' "Souls of Black Folk") Which has a charge with the greatest magnitude?An object with charge 0An object with charge -2An object with charge-3An object with charge +2 In an atom model, the first energy level can hold _____ electrons, the second level can hold _____ electrons, and the third level can hold _____ electrons. Which one of the following is NOT a worlds major problem? (Choose one answer.)NEED ASAPSelect one:a. instability in the world economyb. overpopulationc. international conflictd. unemployment