a trait unique to embryonic stem cells that makes them useful for generating knockout animals is that they

A restriction enzyme is a specific nuclease that recognizes and cuts up DNA at a specific sequence of nucleotide base pairs.

It is a type of nuclease that is able to recognize and cut DNA at a specific sequence of nucleotide base pairs, known as a restriction site. These enzymes are commonly used in molecular biology research to manipulate DNA, such as in cloning and gene editing. It's important to note that there are many different types of restriction enzymes, each with its own specific recognition site. Some enzymes recognize a short sequence of only a few base pairs, while others recognize longer sequences.

Additionally, some enzymes cut DNA in a specific way, such as leaving blunt ends or creating overhanging "sticky" ends that can be used to attach DNA fragments together. The discovery of restriction enzymes in the 1970s revolutionized the field of molecular biology, as they provided a way to easily manipulate DNA in the lab. Researchers can use restriction enzymes to cut DNA at specific sites, and then join different pieces of DNA together using DNA ligase. This has enabled the creation of genetically modified organisms, the study of gene function, and many other advances in the field.

In summary, a restriction enzyme is a specific type of nuclease that recognizes and cuts DNA at a specific sequence of nucleotide base pairs. This ability has revolutionized molecular biology and enabled many advances in genetic engineering and other fields.

To know more about nuclease, visit:

https://brainly.com/question/15706752

#SPJ11

Answer:

C

Explanation:

Two amoebeas because when a amoebea splits it has the same information copy as its parents

Answer:

The answer is b) capsid.

Explanation:

Answer:

b) capsid

Explanation:

Answer:

A(n) ___________________________ summary is not influenced by personal feelings; it is all based on directly what the passage says.

Question 8 options:

Objective

Subjective

Explanation:

A(n) ___________________________ summary is not influenced by personal feelings; it is all based on directly what the passage says.

Question 8 options:

Objective

Subjective

The RNA molecule is a storage unit for genetic information, hence option B is correct.

The RNA world hypothesis, states that RNA is a self-replication molecule and has the ability to work as a catalytic unit also. It is not a stable molecule so DNA acts as the genetic material.

The discovery of ribozymes showed that RNA had the ability to self-replicate. During evolution, DNA acts as storage of genetic material, because it is more stable the RNA.

In the central dogma process, DNA is replicated and transcribed into the mRNA which then translates to protein and expresses the genetic information, this protein acts as an enzyme, but RNA also acts as an enzyme.

Therefore, option B The RNA molecule being a storage unit for genetic information is correct.

Learn more about the RNA, here:

https://brainly.com/question/17212556

#SPJ2

One fish that is native to the shallow tropical waters of the western Atlantic is the queen angelfish.

This colorful fish is found in coral reefs from Florida and the Bahamas down to Brazil, and is a popular sight for divers and snorkelers. The queen angelfish has a striking appearance, with a bright blue body, yellow tail fin, and electric blue markings on its face and fins.

They can grow up to 18 inches long and are known to be territorial, often defending their patch of coral from other fish.

In addition to their beauty, queen angelfish play an important role in the coral reef ecosystem. They feed on sponges and algae, helping to keep the reef clean, and are preyed upon by larger fish and sharks. However, like many reef fish, queen angelfish are threatened by habitat destruction, overfishing, and climate change.

It is important to protect these fragile ecosystems and the species that depend on them in order to preserve the biodiversity and beauty of our oceans.

To know more about Atlantic, visit:

https://brainly.com/question/31251342#

#SPJ11

Early jawless fishes are a group of primitive fishes that appeared in the fossil record over 500 million years ago. They were the first vertebrates to evolve and did not possess jaws, instead, they had circular mouths that they used to suck in food.

The group includes several different types of fish, including the hagfish and lampreys. One of the key characteristics of early jawless fishes is their lack of jaws. This meant that they had to rely on their circular mouths to feed, which limited the types of food they could eat. They were also relatively small in size and lacked bony skeletons, making them vulnerable to predators. Another key characteristic of early jawless fishes was their cartilaginous skeleton. This is in contrast to bony fishes, which have skeletons made of bone. Cartilage is a flexible tissue that provides support and protection for the fish's internal organs. It is also lighter than bone, which would have been an advantage for these small, primitive fishes.

To know more about fossils

https://brainly.com/question/11829803

#SPJ11

Answer:

mean:59

mode:50

median 90

Explanation:

mean:add all numbers together and divide it by how many there are

0+27+48+69+90+80+50+50+45=459

459÷9=59

mode:number that appears most

median:middle number(pur the numbers in order and find the midle number)

Answer:

C

Explanation: The cell needs all of the other options to survive as waste is just the result of those.

A double red ring in the upper portion of a pipette signifies that the pipette is a "blow-out" pipette and is designed to dispense the entire volume of liquid in the tip.

In a blow-out pipette, the double red ring serves as an indicator that the user should blow out any remaining liquid in the tip after dispensing the desired volume. This helps to ensure that the full volume of liquid is dispensed, rather than leaving a small amount behind in the tip.

Blow-out pipettes are commonly used in applications where accuracy and precision are critical, such as in analytical chemistry, microbiology, and molecular biology.

They are often calibrated to deliver a specific volume of liquid with high accuracy and precision, and are designed to minimize any potential sources of error, such as evaporation or retention of liquid in the tip.

In summary, the double red ring in the upper portion of a pipette serves as a visual indicator that the pipette is a blow-out pipette and should be used to dispense the entire volume of liquid in the tip.

To know more about microbiology click on below link:

https://brainly.com/question/10200364#

#SPJ11

A microbiological culture, also known as a microbial culture, is a technique for increasing the number of microbial organisms by allowing them to reproduce in a predefined culture media under carefully monitored lab conditions. As a research tool in molecular biology, microbial cultures are fundamental diagnostic techniques.

The diversity of microbes is absolutely astounding, but they can all be divided into five basic categories: viruses, bacteria, archaea, fungi, and protists. An organism that is only visible under a microscope. Bacteria, protozoa, algae, and fungi are examples of microorganisms. Although they are not regarded to be living things, viruses are occasionally categorized as microbes.

To learn more about microbiological, follow the below link:

https://brainly.com/question/28823868

#SPJ4

Failure of the foramen ovale to close after birth would result in mixed blood in the vena cava.

The correct option to the given question is option b.

The foramen ovale is a gap between the atria that allows blood to flow through the right atrium to the left atrium during fetal life. The majority of the blood will flow to the lungs to pick up oxygen during this time.However, when the baby is born, it must begin to breathe air and the pulmonary circuit must take over as the primary path for oxygenation.

As a result, the lungs inflate, the pulmonary pressure decreases, and the foramen ovale closes within a few hours of birth.Blood can go through the hole in the septum between the right and left atria, mixing oxygenated and non-oxygenated blood in the adult heart, if it fails to close.

The right ventricle then pumps this blended blood out of the heart and into the lungs. This can cause cyanosis in the infant, as well as congestive heart failure and a failure to thrive in severe cases.

For more such questions on birth, visit:

https://brainly.com/question/3187806

#SPJ8

Though not all tumors or polyps bleed, occult blood in the stool may be an indication of colon cancer or polyps in the colon or rectum.

Small bowel tumors, esophagitis, peptic ulcers, gastritis, inflammatory bowel disease, vascular ectasias, portal hypertensive gastropathy, and colon cancer are a few of the more prevalent causes (eg, GI stromal cell tumor, lymphoma, carcinoid, adenocarcinoma, or polyp)

If the fecal occult blood test results are positive, blood has been discovered in the stool. Your doctor will need to identify the cause of the bleeding, either by doing a colonoscopy or by performing an examination to establish if the stomach or small intestine is the source of the bleeding.

learn more about colon cancer refer

https://brainly.com/question/16294074

#SPJ4

A gene is a section of DNA that codes for a particular protein. The order of the bases in a gene determines the order of the amino acids in the protein. Each gene contains a different sequence of bases. Therefore each protein has a different combination of amino acids. The amino acids in the protein fold up to give each protein a different, specific function. For example, enzymes (which are proteins) have a specific shape.

A sequence of three bases in the DNA is called a codon and codes for one amino acid. DNA contains four different bases (adenine, cytosine, guanine, and thymine) and they can combine to make 64 different codons. However, there are only 20 amino acids, so there is more than one codon coding for each amino acid.

Some regions of DNA are non-coding. They don't code for amino acids, but they are still involved in protein synthesis.

To learn more about genes, check out https://brainly.com/question/19947953

The ABO blood type of a blood sample containing erythrocytes with neither surface antigen A nor surface antigen B on the plasma membrane is type O. Type O blood is known as the universal donor because it does not contain any surface antigens that can trigger an immune response in the recipient.

This means that type O blood can be given to anyone regardless of their ABO blood type. However, individuals with type O blood can only receive blood from other type O donors. It is important to know your blood type for medical purposes such as blood transfusions or organ transplants as a mismatched blood type can cause a serious and potentially life-threatening reaction.

Learn more about immune here:

https://brainly.com/question/28302493

#SPJ11

Red algae have calcium carbonate deposited in their cell walls and examples include symbiotes of corals, which depend on the algae for food.

To learn more about Red algae refer:

https://brainly.com/question/15876411

#SPJ4

Answer:

a. domain

Explanation:

I am assuming that you are looking for the largest system, in that case it is domain.

From this list, it goes

Domain>kingdom>phylum>taxonomy

hope this helps :3

Answer: 62.5 kilocalories

Explanation:

Otters are a subfamily of carnivorous mammals which consume a variety of animals such as amphibians, crustaceans, fish, snails, water insects, worms, birds, turtles, frogs and aquatic invertebrates (insects). They are great swimmers which helps them look for food, and they can close their nostrils being able to stay underwater for up to 4 minutes.

A calory is an unit of measurement of the energy found in food which is defined as the unit of thermal energy equivalent to the amount of heat needed to raise the temperature of 1 gram of water by 1 degree Celsius. For example, if a certain food provides 300 calories, this is the energy that the body could receive when consuming it.

To maintain its  weight, the female otter must consume 250 calories per kilogram of body weight per day. So if the otter has a weight of 25 kilograms, then 250*25= 6250 calories (or 62.5 kilocalories) needed per day to maintain the weight.

Answer:

Scientists have determined that humans are disrupting the nitrogen cycle by altering the amount of nitrogen that is stored in the biosphere. The chief culprit is fossil fuel combustion, which releases nitric oxides into the air that combine with other elements to form smog and acid rain.

Explanation:

Answer:

C)

Your sensory receptors in the nervous system recognize the external change in the environment and immediately send a signal through the autonomic nervous system to a gland that gradually communicates your internal body temperature is also changing. Both systems work together to maintain homeostasis

Explanation:  

The answer basically gives you an explanation, but here is mine:

The nervous system works heavily with the brain by sending signals through nerves. The endocrine system secrete chemicals for wide ranges of things, but it does this with a message that is relayed the nervous system. Since in this problem the temperature is decreasing, then the nervous system will send a message to the brain and then the message gets sent to whatever system is needed to adapt to the temperature decrease which in this case it the endocrine.

This was pretty lengthy, but I hope it helps :)

The percentage of the population with a particular disease at any point in time is the prevalence of the disease, whereas the number of new cases over a given time period is the incidence of the disease.

To understand this concept, let's consider an example. Let's say there is a population of 100,000 people, and 5,000 of them have a particular disease at a given time. The prevalence of the disease would be calculated by dividing the number of people with the disease (5,000) by the total population (100,000) and multiplying the result by 100. In this case, the prevalence would be 5%.
Now, let's consider the number of new cases over a given time period, such as a year. If 1,000 new cases of the disease are diagnosed during that year, then the incidence would be calculated by dividing the number of new cases (1,000) by the total population (100,000) and multiplying the result by 100. In this case, the incidence would be 1%.
In summary, prevalence refers to the percentage of the population that has a particular disease at any point in time, while incidence refers to the number of new cases of the disease over a specific time period. These measures help researchers and healthcare professionals understand the burden and spread of diseases in a population.
To know more about disease visit:

https://brainly.com/question/943439

#SPJ11

Answer: The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. ... The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles

Explanation:

Electron leakage during the electron shipping in the mitochondrial membrane (in eukaryotes) or within the cell membrane is an important trouble for the accumulation of the reactive oxygen species (ROS) inside the cytosol.

If the Krebs cycle is overstimulated, too much of the products will be formed and the body will have too much carbon dioxide.

The tricarboxylic acid (TCA) cycle, additionally known as the Krebs or citric acid cycle, is the principle source of energy for cells and an critical part of cardio breathing.

In eukaryotic cells, the citric acid cycle takes place within the matrix of the mitochondrion. In prokaryotic cells, together with bacteria, which lack mitochondria, the citric acid cycle response collection is carried out within the cytosol with the proton gradient for ATP production being throughout the cell's surface (plasma membrane) instead of the inner membrane of the mitochondrion.

Learn more about Krebs cycle here:-

https://brainly.com/question/4072845

#SPJ9

if a giraffe has 36 chromosomes in its body cells, then the giraffe skin cell after mitosis will have 36 chromosomes in the resulting daughter cells (Option C).

Mitosis is a cell division process that conserves the same number of chromosomes in the daughter cells and therefore parental cells and daughter cells are genetically identical after this process.

Therefore, with this data, we can see that mitosis is characterized to conserve the same number of chromosomes after thus cycle of cell division when comparing daughter cells and parental cells that suffer this process.

Learn more about mitosis here:

https://brainly.com/question/19058180

#SPJ1

The statement is false. Angiotensin II does not stimulate the release of antidiuretic hormones.

Blood volume is decided by the amount of water and sodium ingested, discharged by the kidneys into the urine, and lost through the gastrointestinal tract, lungs, and skin.

Blood volume influences arterial pressure by changing cardiac output. An increase in blood volume may increase central venous pressure. This results in increasing right atrial pressure, right ventricular end-diastolic pressure, and volume.

Increased blood volume may increase blood pressure. An injection of 250 mL water can cause blood pressure to rise by 10 mmHg within 60 min. Blood flow to specific organs depends on the degree of vasoconstriction of the arteries supplying these particular organs.

To know more about blood volume visit:

https://brainly.com/question/7313563

#SPJ4

The assertion is untrue. Antidiuretic hormone is not stimulated by angiotensin II.

The amount of water and sodium ingested, excreted by the kidneys in the urine, and lost through the digestive system, lungs, and skin determines blood volume.

Vascular pressure is influenced by blood volume via altering cardiac output. The central venous pressure may rise if blood volume increases. This causes the right atrial pressure, right ventricular end-diastolic pressure, and right ventricular volume to rise.

Blood pressure may rise as a result of increased blood volume. Within 60 minutes, a 250 mL water injection can result in a 10 mmHg increase in blood pressure. The amount of vasoconstriction in the arteries feeding a certain organ determines how much blood flows to that organ.

To know more about blood volume visit:

https://brainly.com/question/29304997

#SPJ4

If you push down an effort distance of 1.5m using an effort force of 60N, the box will rise distance of 0.9m.

To lift a 100N box onto a shelf. If we push an effort distance of 1.5m using an effort of 60N. The 100N box will rise up by a distance H.

This distance d can be calculated,

Using law of conservation of energy,

As there is no external force on the body the concept of conservation of energy can be used here,

It means that the applied energy will be equal to the output energy in the ideal conditions.

So, we can write,

Energy(applied) = Energy(Output)

mgh = MgH

Where,

mg is the effort force of 60N,

Mg weight of the box to be lift which is 100N,

h is the effort distance of 1.5 meters and,

H is height by which the box will rise.

Putting all the values,

60×1.5 = 100 × H

H = 90/100

H = 0.9m

The 100N box will rise upto a distance of 0.9 meters.

To know more about Conservation of energy, visit,

https://brainly.com/question/166559

#SPJ9

The term "avuncular residence" means living with or near an uncle, which is a common form of family structure in the Trobriand Islands. There are several benefits to this type of living arrangement, which have been documented by anthropologists who have studied the Trobriand society. Firstly, avuncular residence allows for close ties between siblings and their children, which can provide a support system for mothers and children.

This can be especially important in a society where women are responsible for most of the childcare duties.

Secondly, living with an uncle can provide economic benefits for both the uncle and his nieces and nephews. Uncles can provide resources such as food, shelter, and protection to their extended families, while their nieces and nephews can help with household chores and other tasks.

Finally, avuncular residence can help to maintain social order in the Trobriand society. This is because uncles are responsible for ensuring that their nieces and nephews adhere to traditional cultural norms and values, which helps to reinforce the social order and maintain stability within the community.

In summary, the benefit to avuncular residence in Trobriand society is the provision of close family ties, economic benefits, and the maintenance of social order. These benefits have helped to make avuncular residence a popular form of family structure in the Trobriand Islands for many generations.

To know more about children visit :

https://brainly.com/question/28583748

#SPJ11

Answer:

X-rays because the higher the frequency the shorter the wavelength

Explanation:

Answer:

Clams and squid have been evolving separately for a shorter time than clams and snails.

Explanation:

Answer:

The answer is D

Explanation: