What does a restriction enzyme do?

1. restricts activities of inheritance

2. stops DNA from growing

3.cuts DNA at a specific site based upon a specific code

4.cuts DNA into tiny pieces so replication is more difficult

Answer:

b

Explanation:

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Answer:

c.Weight is an example of force.

Glucose is transported from the intestine across the intestinal cell into the blood via three transmembrane transport steps: 1.) ATP driven anti port of Na+ out of the cell and K+ into the cell.2.) Symport of glucose and Na+ into the intestinal cell from the intestine.3.) Uniport of glucose from the intestinal cell into the blood.

The movement of a solute across a lipid bilayer is known as transmembrane transport. It should be noted that because the nuclear membrane is a double membrane and is not crossed, transport through the nuclear pore complex is not transmembrane. The endoplasmic reticulum (ER) can transport newly synthesised transmembrane proteins to the Golgi apparatus, where they can either return to the ER (ER-Golgi recycling) or move on to the trans-Golgi network (TGN) and the plasma membrane (PM) (secretory pathway). Simple diffusion, facilitated diffusion, osmosis, and active transport are all ways for particles to pass through membranes.

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Answer:

Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.

Answer:

Explanation:

To diagnose such infections, doctors may use a variety of tests called immunologic tests. These tests detect one of the following: Antibodies, produced by the person's immune system in response to the microorganism. A microorganism's antigens

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The solution of sodium acetate trihydrate energy released is 19.7 kJ/mole which is an endothermic process. The crystallization is exothermic.

Crystallization can be defined as the solidification of a liquid substance into a highly structured solid whose molecules are placed in a well-defined three dimensional crystal lattice.

A. Before weight: 280gm and after heating of pad, weight increases by 10-20gm approx (300gm).

B. It takes 12-20 minutes for the solution to completely crystallize after the bag is activated.

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Answer: The options are not given, here are the options.

A. One species is much better competitor than the other.

B. Periodic disturbances allow for coexistence.

C. Two species tended to use different resources.

D. The two species experienced interference competition and not exploitative competition.

The correct option C.

Two species tended to use different resources.

Explanation:

From Gause experiments on competing paramecium pairs, He found out that most times both species persisted and sometimes only one did because the two species uses different resources.

Organisms normally compete for limited resources in order to survive and one intend to compete well while other suffer. Both in the case of competing paramecium pairs, the pair use different resources which make the to persist and survive well. Once the resource of one finishes, the other one will persist because it is still surviving on its available resources.

The trend that is evident is: Initially, there seems to be support for Mel's hypothesis, but the gold data is not consistent with the predicted trend.

Option C is correct.

The data for zinc, nickel, copper, and silver shows that as the density increases, the melting point tends to increase.

From the data we can see , the data for gold does not follow this trend, as its density is lower than silver but its melting point is higher.

Therefore, while there is some initial support for Mel's hypothesis, the inconsistency with gold indicates  that the relationship between density and melting point is not solely determined by density.

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Answer:

In a scientific experiment, the dependent variable is the variable that is being tested and then measured. The answer referenced in D, the variable that is manipulated, is referring to the independent variable.

Explanation:

The independent variable is the thing you are changing in your experiment (eg.the temperature).

Answer:

B. Continuously, as nucleotides are added to the 3' end

Explanation:

The leading strand is synthesized by adding nucleotides to the 3' end of the growing strand, and the lagging strand is synthesized by adding nucleotides to the 5' end.

The lagging strand is synthesized continuously, whereas the leading strand is synthesized in short fragments that are ultimately stitched together.

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The leading strand in DNA replication is synthesized continuously by DNA polymerase in the 5' to 3' direction from the origin of replication.

During DNA replication, the leading strand is built continuously in the 5' to 3' direction by DNA polymerase. DNA polymerase adds deoxyribonucleotide (dNTP) to the 3' end of the DNA. The replication begins at a specific point in the DNA molecule called the origin of replication. Here, the DNA helix is separated by the enzyme helicase, which forms a structure known as the replication fork. In this structure, on the leading strand, the DNA polymerase is moving in the same direction as the replication fork, allowing it to read the original DNA strand and synthesize the new strand continuously.

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Answer: Mutational effects can be beneficial, harmful, or neutral

Explanation:

Most non-neutral mutations are deleterious. In general, the more base pairs that are affected by a mutation, the larger the effect of the mutation, and the larger the mutation's probability of being deleterious.

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Answer:

Ancestors of giraffes with shorter necks could not reach branches high up in trees for food. This led to directional selection for longer-necked giraffes.

Explanation:

The theory of Evolution by Charles Darwin and Alfred Russel states that

Explanation:

The male has reproductive organs, or genitals, that are both inside and outside the pelvis, while the female has reproductive organs entirely within the pelvis.

The male has reproductive organs, or genitals, that are both inside and outside the pelvis, while the female has reproductive organs entirely within the pelvis.

Answer:

Explanation:

The entire femoral condyles should be clearly demonstrated on a lateral projection of the leg.

The femoral condyles are the rounded projections at the distal end of the femur, which articulate with the tibia and fibula to form the knee joint. A lateral projection of the leg is taken from the side of the leg, and it should show the entire femoral condyles, as well as the tibial plateau and the fibula. This projection is useful in diagnosing fractures, dislocations, and other injuries to the knee joint.

While the ankle joint is also visible on a lateral projection of the leg, it is not the primary focus of this projection. If necessary, additional views, such as an AP (anteroposterior) or oblique projection, may be taken to better visualize the ankle joint.

Answer:

2.04 moles of C atoms

Explanation:

The number of moles of C atoms can be calculated using Avogadro's number, which is approximately 6.02 x 10^23 atoms per mole.

To find the number of moles of C atoms in 1.23 x 10^24 atoms, we need to divide the number of atoms by Avogadro's number:1.23 x 10^24 atoms / 6.02 x 10^23 atoms/mole = 2.04 moles

Therefore, if you have 1.23 x 10^24 atoms of C, you would have 2.04 moles of C atoms.

Meselson-Stahl's experiment contributed to our understanding of DNA replication because the use of radioactive nucleotides showed that one DNA strand is synthesized in each round of replication while the other chain remains unchanged, which is known as semiconservative replication.

In genetics, semiconservative replication refers to the process by which DNA is duplicated during the process of DNA replication. In semiconservative replication, one DNA chain is conserved in intact conditions while the other one is synthesized in the final double helix DNA molecule.

Meselson-Stahl's experiment contributed to the discovery of the semiconservative nature of DNA replication by observing that only one radioactive chain was added to each round of replication.

Therefore, with this data, we can see that the semiconservative replication of the double helix DNA molecule is a fundamental process associated with DNA replication which was discovered by Meselson-Stahl's experiments.

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The plant cell has the following structure:

References:

1. Chloroplast

2. Nucleus

3. Permanent vacuole

4. Cell membrane

5. Cytoplasm

6. Mitochondrion

The animal cell has the following structure:

References:

1. Plasma membrane

2. Mitochondrion

3. Ribosome

4. Cytoplasm

5.Centrioles

6. Lysosome

7. Smooth endoplasmatic reticulum

8. Nucleus

9. Rough endoplasmatic reticulum

10. Golgi apparatus

11. Microtubule

I would say Salt (NaCI), considering Beryllium, Tungsten, and Silver are all single elements and Salt is a combination of two elements, forming a compound known as sodium chloride.

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The difference between animal and plant cells is that they contain different organelles, among these are the chloroplasts that plant cells contain and animal cells do not.

Each of these cells will have their own requirements, which is why they will have different types of organelles to be able to meet these requirements. Among the differences will be that plant cells will have chloroplasts to be able to generate their own food since they cannot obtain it by other means, so they will manufacture sugar through sunlight.

In plant cells it will have a cell wall that will be surrounded by a cell membrane. While animal cells will not have this cell wall.

Therefore, we can confirm that plant cells and animal cells will have differences in their content, function and organelles.

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Answer:

The primary differences between animal and plant cells concern the types of organelles present within them. Although these cell types are similar in that they’re both eukaryotes, plant cells have several structures not present in animal cells: chloroplasts, amyloplasts, and cell walls.

Explanation:

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Answer:

B

Explanation:

the only one that makes sense

Answer:

Explanation:

.

The formula point that is √2 away from (-1, 5) is (1/√2, 5 + √2).

A formula is a mathematical equation or expression that describes the relationship between different variables. It is used to calculate the value of a particular quantity or to solve a problem. Formulas are typically written using symbols and letters, and can be used to represent relationships between different values.

This is because the distance between two points (x1, y1) and (x2, y2) is calculated by the formula:
Distance = √((x2 - x1)^2 + (y2 - y1)^2)
In this case, x2 = 1/√2 and y2 = 5 + √2. Plugging these values into the formula gives us:
Distance = √((1/√2 - (-1))^2 + (5 + √2 - 5)^2)
= √(2/2 + 2)
= √2

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Answer:

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Explanation:

When the body undergoes exercise, your body needs more energy, which means your tissues consume more oxygen than they do at rest.

Consuming more oxygen means you will also produce more carbon dioxide because your metabolic rate is elevated.

Answer:

During exercise, blood spends up to half the normal time (one second at rest) in the pulmonary capillaries due to the increase in cardiac output moving blood around the body more quickly.

Explanation:

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Answer:

comparative genomics

Explanation:

Comparative genomics is a field of biological research in which the genomic features of different organisms are compared. The genomic features may include the DNA sequence, genes, gene order, regulatory sequences, and other genomic structural landmarks.