What does DNA polymerase do in semiconservative replication?

Ultraviolet light can be the answer to future outbreaks because it has the capability to kill the microorganisms present in air and thus can prevent the infectious diseases caused by them.

Ultraviolet light is the EM radiation with the wavelength range 10 nm to 400 nm. It is already being used in research labs for maintaining the microbe free environment. Researches are also being conducted to produce such ceiling lights that can be used normally in households so that the the air-borne microorganisms can be killed.

Microorganisms are the small living organisms not visible to the unaided eyes. They have the strong capability to produce their new variants by mutation and cause infectious diseases. The ultraviolet light can kill them even before they are able to transform themselves.  

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Answer:

its D

Explanation:

Natural selection is the process in which some organisms that show better adaptation to the environment are more likely to produce an offspring. In the case of the exercise, the answer is:

b. Some tuna live in the Pacific Ocean. They are fast, so they are likely to survive and pass on their genes.

It means that as they are better adapted to that environment due to the fact they are fast swimmers, they are likely not only to survive, but to pass their genes and produce offsprings.

Answer:

Energy flows through an ecosystem in a 1-way stream, from primary producers to various consumers. … Producers receive chemicals from light rays, 1st-level consumers eat producers, 2nd-level consumers eat 1st-level consumers, and 3rd-level consumers eat 2nd-level consumers.

Explanation:

Answer:

what are the answers? if I knew the answers I could tell ya

People who are AB can receive blood from all types of blood groups.

This is the classification of blood based on polymorphisms in antigens on the surfaces of the red blood cells.

There are four types of blood groups and the AB is known as universal recipient which means it can receive blood from any of them. Also the patient should receive blood that is positive for Rh as it will not make anti-Rh antibodies which may destroy cells of the fetus.

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Answer: B and O........ Also, the patient can recieve blood that is NEGATIVE (only)

Explanation: these are the correct options on edge, i hope this helps!! :D

Answer:

Explanation:

In 1869, Friedrich Miescher isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule. Phoebus Levene was an organic chemist in the early 1900's. He is perhaps best known for his incorrect tetranucleotide hypothesis of DNA.

Answer:

C) metabolism, white blood cell production, and insulin regulation

I think that's the answer.

Answer:

Ligase is the enzyme that binds the new bases in the DNA template to the old bases. Explanation: The ligase enzyme performs a vital function in the replication and repair of DNA. It joins Okazaki fragments, seals DNA repairs, and seals recombination fragments.

Answer:

C) A red blood cell and hair follicle cell have the same genes, but they are expressed differently

Explanation:

All cells of a living organism contain the same genetic sequence i.e. they contain the same set of genes, however, differences in the expression of these genes may occur. This is responsible for the different specific roles or functions played by organs of the body system.

The expression of a gene refers to the process by which a gene is transcribed and translated into a protein molecule, which is responsible for traits in the body. Genes are expressed differently in order for certain cells to function differently and specifically. For example, difference in expression of genes is responsible for the ability of red blood cells to produce hemoglobin and the inability of hair follicle cells to, even if they contain same genes.

Answer:

A

Explanation:

To find the density you take mass divided by volume

Answer:

Adenosine triphosphate also known as ATP is a molecule that carries energy within cells. It is also formed from the process of cellular respiration in the mitochondria of a cell.

Explanation:

One nonproteinaceous, yet toxic, compound found in all gram-negative bacteria is lipopolysaccharide (LPS).

LPS is a complex molecule made up of a lipid and a polysaccharide component. It is found in the outer membrane of gram-negative bacteria and serves as a barrier to protect the cell from the external environment. However, LPS can also be toxic to the host and can trigger an inflammatory response. This is because LPS is recognized by the host's immune system as foreign and triggers the production of antibodies and the release of cytokines. The inflammatory response can cause damage to the host's tissues and can lead to severe illness or death in some cases.

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Complete Question:

What is a nonproteinaceous, yet toxic, compound found in all gram-negative bacteria?

In four neurotransmitter molecules the catecholamine is bound to each molecule of ATP because the synaptic vesicles and synaptic granules on the neurotransmitter contain adenosine triphosphate with a molar ratio of catecholamine to ATP of approximately 4:1.

Hormones that play a role in the nervous system are catecholamines in the form of epinephrine (adrenaline) and norepinephrine (noradrenaline). The adrenal medulla contains chromaffin granules (organelles in cells) which function for the biosynthesis, absorption, storage, and secretion of catecholamines.

Other compounds contained in these granules are ATPMg2+, Ca2+, Dopamine-β-hydroxylase (DBH), and the protein chromogranin. Catecholamines enter the granules by a transport mechanism with an ATP-dependent ratio of catecholamines : ATP = 4 : 1. Norepinephrine is stored in the granules, can leave and undergo methylation of the N-terminal end of the protein to form norepinephrine and then enter new granules.

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Hormone therapy may increase the risk of breast cancer in postmenopausal women.

Hormone therapy, also known as hormone replacement therapy, is a treatment used to relieve symptoms of menopause such as hot flashes, night sweats, and vaginal dryness.

It involves taking estrogen and/or progesterone to replace the hormones that the ovaries no longer produce.

However, studies have shown that long-term use of hormone therapy may increase the risk of breast cancer in postmenopausal women.

In postmenopausal women, hormone therapy can potentially lead to a higher risk of developing breast cancer due to the effects of estrogen-progestin therapy on breast cancer cells.

Summary: Hormone therapy may increase the risk of breast cancer in postmenopausal women.

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Answer:

search this up

Explanation:

then add quiz let at the end :) hope this

Answer:

= communication is usually between animals of a single species, but it can also happen between two animals of different species.Animals communicate using single,which can include visual; adutitory ,or sound- based ,chemical ,involving pheromones,or tactile ,touch - based ,cuses.

Option E: Plasmodesmata and gap junctions are the two junctions that form a combination of cellular junctions most similar to each other.

Gap junctions are present in animals while plasmodesmata are the cellular junctions present in plants. Both of their functions are to facilitate the transport of materials within the cells or to the extracellular matrix. Thus, they are similar in functions.

Animal cells can cling to one another or to the extracellular matrix thanks to connections called cellular junctions. Similar cell connections, known as plasmodesmata, also exist in plants. The plasmodesmata, which create pores between cells, enable the movement of genetic material, water, nutrients, and signaling molecules. There are four primary types of cell junctions in animals: gap junctions, adhesion, desmosomes, and tight junctions.

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Active transport is the process of moving molecules across a cellular membrane through the use of cellular energy.

Active transport involves in movement of molecule against a concentration or electrochemical gradient, with the help of energy. Active transport system use this process for maintaining the right concentrations of ions and molecules in living cells.

In active transport, is the process were molecule move against the concentration gradient, from low concentration to an area of high concentration. This process is “active” because it requires the use of energy. It is the opposite of passive transport.

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This giant sequoia tree obtained enough matter to become one of the largest organisms on earth through a process called photosynthesis.

Photosynthesis is the process by which plants, algae and certain bacteria use energy from sunlight to convert carbon dioxide and water into oxygen and organic molecules such as glucose. Through this process, plants are able to produce their own food and fuel the entire food chain. Photosynthesis occurs in two stages: the light-dependent reactions and the Calvin cycle. The light-dependent reactions capture the energy from sunlight, while the Calvin cycle uses the energy to convert carbon dioxide into sugar molecules. The oxygen produced during photosynthesis is released into the atmosphere, while the sugar molecules are used by plants to grow and develop. Photosynthesis is essential to life on Earth, as it provides oxygen for animals and is the foundation of nearly all food webs.

Photosynthesis is the process by which plants use the energy from sunlight to convert carbon dioxide and water into glucose (a type of sugar) and oxygen. The glucose is then used by the plant as an energy source for growth, and the oxygen is released into the atmosphere. Over time, the sequoia tree has been able to absorb enough carbon dioxide and water from its environment to build up its mass and become one of the largest organisms on earth.

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It is true that the sodium-potassium pump is a trans-membrane protein.

The sodium-potassium pump is an essential protein found in the cell membranes of all animal cells. This protein helps maintain the resting potential of cells and is particularly essential in neurons and muscle cells. In the nerve cells of animals, the sodium-potassium pump is crucial for transmitting action potentials, which is essential for nerve transmission and muscle function.

The sodium-potassium pump is responsible for maintaining the normal cell functions of a cell by transferring three sodium ions (Na+) from inside the cell to the outside, while at the same time allowing two potassium ions (K+) to enter the cell. As a result, the concentration of potassium ions inside the cell is higher than the concentration of sodium ions outside the cell.

To transport these ions across the membrane, the pump utilizes a trans-membrane protein that spans the cell membrane. As a result, the sodium-potassium pump is classified as a transmembrane protein.

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Answer:

D a gas is a fluid

Explanation:

Because gas is an air , not a fluid

Gold fish and wild crucian carp can survive in low oxygen environment .

Gold fish have special properties it is evolved from the enzyme component that are specialized to convert carbohydrates into alcohol that can be released through the gills when oxygen level dropped.

Another most common oxygen response of fishes during oxygen deficient environment is aquatic surface respiration . During this behavior, fish halt just below the surface, put their nose at the air-water juncture and breathe in the level of water that is in direct contact with the air. This juncture of water is comparatively richer in oxygen content.

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The mutation exert its potentially dysfunctional effects after the protein is produced.

A mutation is a change in the DNA sequence of an organism.. Mutations can be brought on by errors in DNA replication during cell division, exposure to mutagens, or viral infection. Somatic mutations (which happen in body cells) cannot be passed on to offspring, whereas germ line mutations (which happen in eggs and sperm) can.

What happens if a mistake is made during DNA replication in a cell that is otherwise healthy?

The individual's offspring will inherit the mutation.

Nothing; errors just occur.

The cell will start to divide uncontrollably and develop into a cancerous tumor.

When a cell cycle checkpoint notices a mistake, the cell cycle is stopped to allow the error to be fixed.

DNA replication never contains any errors.

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To find a way to lower mosquito populations in the wild and increase cases of malaria in the future the purpose of using CRISPR in the Anopheles gambiae mosquitoes experiment.

The malaria parasite, which is spread by infected mosquitoes, multiplies inside red blood cells after entering the human bloodstream. After a few days, these cells burst, infecting other red blood cells and resulting in symptoms such as a severe headache, nausea, vomiting, fever, and coma.

A plasmodium-genus single-celled parasite, which causes malaria. Most frequently, mosquito bites are the means of parasite transmission to people.

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Bodily proteins will commonly be broken down to provide acetyl-CoA for lipid synthesis. The statement is true.

Fatty acids are brought into the mitochondria via carnitine palmitoyltransferase (CPT-1) which is then broken down into acetyl CoA through beta-oxidation. This process is known as Ketogenesis and it occurs in the mitochondria of liver cells.

Ketone bodies are the water-soluble molecules or compounds which contain the ketone groups that are produced from the fatty acids by the liver in body. Ketone bodies are readily transported into the different tissues outside the liver, where they are converted into acetyl-CoA molecule which then enters into the citric acid cycle and is being oxidized for the production of energy.

The two main ketone bodies which are found in body are acetoacetate (AcAc) and 3-beta-hydroxybutyrate (3HB), while acetone is the third, and least abundant, ketone body.

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Answer:

the answer is b.4NH3+5O2=4NO+H2O

answer: silencer repress transcription. Like enhancers, silencers can be found before or after the gene they control and can be some distance away on the DNA strand

Answer:

Each enzyme functions at an optimum temperature.  Below the optimum temperature, the enzyme's function slows, and will eventually become inactive.  Above the optimal temperature, the enzyme's activity will slow.  Too far above the optimum temperature and the enzyme becomes denatured (its shape changes) and it can no longer function.  Amylase is the enzyme that breaks starch (amylose) down into maltose.  The amylase and the starch were placed in the water bath to allow the reaction to occur at amylase's optimum temperature of 37 C.