Homologous recombination can be used in the lab to replace a gene of interest with a selection marker. What is required for the selection marker to specifically replace the gene of interest?.

Answers

Answer 1

Answer:

The sequences surrounding the gene of interest will be placed around the selection marker.


Related Questions

Humans belong, at least partially, to a category of ____________. Whether we mean to or not, we change natural habitats and ecosystems at much faster rates than other species can adapt.

Answers

Humans belong to a category of intelligent primates.

What are primates?

Primates refers to a group of animals that have the ability of high levels of cognition. These group of animals can manufacture their own tools and use them to get foods and for social displays. Some have several strategies to hunt their prey , they have greater influence and rank; they are status conscious. They can receive and also manipulate. They recognise kin.

Therefore, Humans belong to a category of intelligent primates.

Learn more about primate below.

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Which statement best describes the relationship between cellular respiration and photosynthesis?
Group of answer choices

A. Cellular respiration produces oxygen, which is the reactant required for photosynthesis.
B.Cellular respiration produces carbon dioxide, which is the reactant required for photosynthesis.
C. Cellular respiration and photosynthesis have the same products but use different reactants.
D. Cellular respiration and photosynthesis are the same processes; one occurs in animal cells and the other in plant cells.

Answers

Answer:

cellular respiration produces carbon dioxide which is the reactant required for photosynthesis

Practice: Classification using Dichotomous Keys Uh oh! Little Sammy's babysitter forgot to check for monsters under his bed when she tucked him in, and he found all of these when she left. Can you help him determine their names so he can ask them all to leave? Use the dichotomous key on the next page to help you.​

Answers

A dichotoums key uses morphological and molecular traits to classify organisms into different taxonomic groups.  

What is a dichotomous key?

A dichotomous key might be considered a useful tool to classify organisms. The key provides an easy and fast way for identification by describing different morphological and molecular traits, leading you to the correct taxonomic classification.

It is simple to read a dichotomous key. The term dichotomous refers to how information is provided. You will always have two options (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism. The key describes specific morphological oir molecular traits of organisms and you need to choose between the options which ones matches the ones of your organism.

Probably you might need an atlas or a dictionary to understand some of the technical terminologies. You will also need to carefully observe your specimen, to get to distinguish different traits. If the specimen is too small you might need a loup.

Since I do not have your dichotomous key, we are going to analyze a simple example using a group of 5 organisms. We will make the classification according to the description (organisms in the attached files).

Dichotomous key

Statement 1a ----------- The organism is a vertebrate ----------- Frog

Statement 1b------------ The organism is invertebrate ----------- Go to 2

Statement 2a ---------- The organism has a multisegmented

                                   and elongated body, with too many  ----- centipede

                                   legs.

Statement 2b ---------- The organism has a relatively short body

                                   and with fewer legs ------------------------------ Go to 3

Statement 3a ----------- The organism has 8 legs ----------------------- Spider

Statement 3b ----------- The organism has 6 legs ----------------------- Ant

As you can see, this a very simple example, but ilustrates how the key provides enough information for you to reah the correct option.

So in your example, your dichotomous key will probably provide you information about different traits such as body-color, number of extremities, hair, and other, and you will have to observe the all your individuals and choose which trait matches each of them.

You will learn more about dichotomous key at

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In which part of the brain is hunger and thirst regulated?.

Answers

Answer:

The hypothalamus

Explanation:

The hypothalamus regulates functions like thirst, appetite, and sleep patterns. It also regulates the release of hormones from the pituitary gland.

Fore brain

Hypothalamus controls the urge for eating and drinking. It is a part of the forebrain.

Please helppp with this question

Answers

Heyy.
So i did the alternative activity for this assignment.
In task one I only did part F:
answer:
Weathering damage on Cleopatra's Needle, an Egyptian obelisk in Central Park, New York City, is compared to known weathering rates of granites in various regions. The detrimental influence of the city's environment in 83 years of exposure has been attributed by textbook authors to damage to this coarse-grained foliated granite. As evidenced by the original depth of inscription in New York, about 11/2 inches of maximum surface reduction had occurred. Granite reduction rates in humid regions were calculated to be as low as 0.0076 mm per year, and even lower in deserts. The majority of the damage to the obelisk was caused by rising moisture laden with sulfate salts in Egypt, according to the findings. The hydration pressure of these salts, combined with frost wedging, is responsible for the major damage to the monument, which happened during its first few years in New York.

In task 2 I only did part D
answer:
Two independent sets of observations on sand activities in relation to the flowing river are recorded as the water passes through the meandering river. Stream abrasion can affect the morphology of a stream or river dramatically over time. Because the water can start erosion with anything near it, erosion can impact human communities near rivers.

MAKE SURE YOU SAY THAT YOU DID THE ALTERNATIVE ACTIVITY!!!!

How do you predict the embryo of an
eagle would compare to the embryos
shown in the photographs? Apply patterns
to make your prediction.

Answers

Answer:

✏Embryology Evolution Evidence. Darwin’s theory of biological evolution noted that all vertebrates have gill slits and tails in early stages of embryo formation, even though these features may be lost or modified in the adult-form phenotype. For instance, human embryos have a tail that becomes the tail bone.

Explanation:

How long does it take for steroids to get out of your system?.

Answers

Answer: It takes 14 days for steroids to clear out your system

Explanation:

In the summer, snowfall decreases, and melting increases, which results in the outflow being melt.water, thus leading to an increase in ablation causing an overall __________ bud.get and glacier shrinkage.

Answers

Answer:

Negative

Explanation:

Immediately after fertilization, the united egg and sperm is called a:.

Answers

Immediately after it is called a zygote

Compared to a polygenic trait, a single-gene trait tends to have.

Answers

Answer:

the answer is a fewer phenotypes

Help please please thanks

Answers

C- has a heterozygous genotype

They are genotypes (represents genes)


What happens to animals born with a change in species numbers ?

Answers

Answer:

If one animal's population increases, the population of animals that eat that animal might also increase. Increases in population aren't always beneficial.

Explanation:

Sometimes a population will grow too large for the environment to support. Other changes in limiting factors can cause a population to decrease.

source: NHPBS

What is the function of the lymphatic system?

removes worn-out blood cells in the pancreas
circulates plasma through the body to fight infection
delivers nutrients to cells, removes cellular waste, and fights infection
produces red blood cells for fighting infection

Answers

Answer: I believe it is C: delivers nutrients to cells, removes cellular waste, and fights infection.

Forgive me if im wrong but its what I choose on the exam

Answer:

The answer is C!

Explanation:

In an animal cell, DNA is found in the greatest

concentration in the

(1) vacuole

(3) nucleus

(2) ribosome

(4) cytoplasm

Answers

Answer:

the nucleus

Explanation:

it's not necessary for the DNA to be in the nucleus but i guess it acts as a protection?

Helppp with this pleaseeeeeeeee

Answers

I think it would be A it just makes sense

you and a friend are discussing human evolution. your friend insists he has been told that humans arose directly from chimpanzees. you disagree with your friends concept of human evolution. present an argument to help your friend obtain a better understanding of human evolution and the origind of humans as a species. your answer must include refrences to both humans and apes.

Answers

Answer:

yes

Explanation:

Humans are made when a man and woman have a good time together and yea also apes didnt raise humans or anything its been scientifically proven so yeah

If the grass contains 100,000 kcal of energy, how much energy will a fox obtain from eating a bird? 10,000 kcal 1,000 kcal 100 kcal 10 kcal

Answers

If the grass contains 100,000 kcal of energy, the energy a fox will obtain from eating a bird is 1,000 kcal.

What is Calorie?

This is defined as a unit of energy and it decreases as it moves up the food web in the ecosystem.

The organisms only derive 10 percent of the energy when the feed on others. In this case, the grass has 100,000 kcal of energy which when eaten by the bird will be 10 percent which is 10,000 kcal. When the fox eats the bird it becomes 1,000 kcal.

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Which statement about a major hurricane is an inference?
A. The wind speed was 200 km/hr
B. The central air pressure was 946.0 mb
C. A rain gauge records three inches of rain in less than one hour
D. Damage from the storm is expected to be extensive

Answers

Answer:

Its D

Explanation:

Describe how a lake might become a forest in a period of 100 years.​

Answers

Events in order:

1. Lack of rain results in reduced water levels and an expanded shore.

2. Lichens and bacteria break down rocks near the shore into soil.

3. Pine needles, leaves, and branches from shoreline trees drop into the water thereby reducing the lake and expanding the shore.

4. Seeds from trees are dropped on the shore and trees begin to grow.

5. These processes continue until the lake is replaced by a forest.

Lake might become a forest in a period of 100 years by the process of hydrosere.

What is hydrosere?

Hydrosere is defined as the primary succession that develops in aquatic atmospheres such as lakes and ponds.

There are different stages in the succession from lake to pond. such as the initial stage of succession is phytoplankton, and zooplanktons which pioneer colonizers.

Rooted submerged stage is another stage which suitable for the growth of rooted hydrophytes like Elodea, Myriophyllum, etc.

Floating stage is the third stage where submerged and floating plants grow intermingled but after soon the submerged plants are replaced completely by the dead plants deposits at the bottom.  

Reed-swamp stage is 4th stage where the plants of this community are rooted but most parts of plant shoots remain exposed to air.

Sedge meadow stage is 5th stage where further decrease in water level changes the nature of substratum and grasses grows on the area.

Woodland stage is 6th stage where some shrubs and later medium sized trees form open vegetation or woodland tress grows.

Forest stage is the final stage or climax community  stage which is invaded by several trees which further develop into forest.

For more detail regarding ecological succession visit:

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A summary of some scientific steps is outlined below.
1. Ask scientific questions.
2. Make observations with the senses.
3. Record data in a table or graph
4. Notice trends in the data.
5. Publish or present the findings.
cess is shown here. If a scientist will make an inference, between which two steps would "making an inference" most likely occur?
en 1 and 2
en 2 and 3
en 3 and 4
een 4 and 5

Answers

Answer:

en 1 and 2

Explanation:

Innate behaviors are those that are taught by parents to their offspring. i am confused hellpp

Answers

What's the question? Of course parents will teach the offspring. That's how the young ones can grow up and live on their own.

If you block histone deacetylase, what effect would you expect to see on transcriptional activity?.

Answers

Histone deacetylase is responsible for removing the acetyl group from the histone 3 lysine 9 residue. Remember that deacetylation is one step in converting euchromatin to heterochromatin. Because euchromatin is transcriptionally active (transcriptional machinery is able to reach gene of interest), and blocking histone deacetylase activity would result in an the DNA remaining as euchromatin, we would expect to see an increase in transcriptional activity.

So there’s your answer: An increase in transcriptional activity.

when completing an angioplasty what implant can be used to hold the vessel in the open position after the balloon angioplasty. what is the potential complication

Answers

A coronary stent. The 2 major complications that can occur are renarrowing of the vessel in the area of the stent (called restenosis) and clotting occurring within the actual (called stent thrombosis).

Hemorrhagic fevers are caused by RNA enveloped viruses which include all of the following EXCEPT A) arenavirus. B) filovirus. C) flavivirus. D) arbovirus.

Answers

Answer:

D) arbovirus.

Explanation:

D is not to be included

When visiting a national park, a student encounters an unfamiliar organism in a damp area near a body of water. The students notes that the organism is about 10 cm long, has four legs, and has a tail. The organism is black with small white sports on its smooth, moist skin. It also appears to have an internal skeletal system. To which class does the organism most likely belong?1

Answers

The animal is an Amphibian

What effect does a rapidly changing environment have on the natural selection of organisms in a species?
A. Organisms will decrease their reproductive rate.
B. Species with little genetic diversity will adapt most quickly.
O c. Species that cannot adapt quickly enough may become extinct.
• D. Organisms will increase their rates of mutation to adapt to change.

Answers

Rapidly changing the environment of organisms can result in them going extinct if they refuse to adapt quickly enough.

Natural selection and the environment

Organisms need to adapt to new environments.

Thus, changing the environments of species rapidly means that the species either catch up by adapting as rapidly or risk going extinct.

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Can you tell for certain if eleanor is a definite carrier for methemoglobinemia

Answers

Answer:

It is hard to say for sure if Eleanor Fugate is a carrier for methemoglobinemia. If we knew that Martin (her father) was definitely blue, then the answer would be yes. However, because we do not have that information, nor information about her offspring, we can not tell for certain

Which structure in the figure above produces bile?
A
B
C
D​

Answers

Answer:

B gallbladder

hope it helps

i think the answer is B

Anaphylaxis is an overactive immune response to a perceived pathogen.
True or False
ONLY ANSWER IF YOU KNOW AND WHY

Answers

Answer:

True

Explanation:

Anaphylaxis is an acute allergic reaction to an antigen (e.g. a bee sting) to which the body has become hypersensitive.

Common symptoms include:

Skin reactions such as itching and hivesFlushed and pale SkinLower blood pressureDifficulty breathingChokingWeak and rapid pulse rateVomitingNauseaDizziness or fainting

Mark brainliest please

Answer:

True

Explanation:

This happens when our immune system overreacts to a foreign substance so much that it harms you.

Contrast apoptosis and cancer.

Answers

Answer:

Apoptosis is a multi-step, multi-pathway cell-death programme that is inherent in every cell of the body. In cancer, the apoptosis cell-division ratio is altered. Cancer treatment by chemotherapy and irradiation kills target cells primarily by inducing apoptosis.

Explanation:

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