which enzyme is used in the processing of miRNAs that are encoded in the genome but not in the processing of exogenously added siRNAs

Answer:

The answer is D

Explanation:

As the cell is mostly dependant on ingested materials so this will help the cell to grow and perform other important activities in the cell

The current trend in which some species of bacteria have become resistant to antibiotics is best described as antibiotic resistance.

This is a growing problem in which bacteria evolve and develop mechanisms to resist the effects of antibiotics, making it more difficult to treat infections. Antibiotic resistance can occur as a result of overuse or misuse of antibiotics, which selects resistant bacteria and allows them to survive and multiply. This trend has serious implications for public health, as it can lead to the spread of antibiotic-resistant infections that are difficult to treat, and can result in increased morbidity and mortality. To combat antibiotic resistance, it is important to use antibiotics responsibly, implement infection control measures, and develop new antibiotics and alternative treatment strategies.

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The nucleus accounts for almost the entire mass of the atom of any element, which means that a single proton or neutron has an approximate mass of 1 AMU.

What is AMU?

An atomic mass unit is defined as accurately 1/12 the mass of carbon-12 atom. carbon-12 atom has six neutrons and six protons in its nucleus. It is represented as a.m.u or u (unified). It is unit of mass used to express atomic masses. 1 a.m.u is average of the proton rest mass and neutron rest mass.

Protons and neutrons both weigh about one atomic mass unit (amu). Isotopes of same element will have the same atomic number but different mass numbers.

Protons carry single positive charge that have mass of one approximately one atomic mass unit. The atomic number is equal to number of protons found in an atom.

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Answer:

a.similar cells.

Explanation:

hope it is correct.

Answer:

The last one, about important bodily functions

Explanation:

proteins are used as an energy source for your body, so this seems like the most appropriate answer

In the absence of insulin, fat breakdown produces a by-product called ketones, which accumulate in the blood and urine.

Insulin is a hormone that regulates the metabolism of carbohydrates, fats, and proteins in the body.

When insulin levels are low, the body shifts to a different mode of energy production and begins to break down fat for fuel, producing ketones as a by-product. If this process continues, the accumulation of ketones in the bloodstream can lead to a condition called ketoacidosis, which is a dangerous and potentially life-threatening condition that can occur in people with uncontrolled diabetes.

In normal individuals, the levels of ketones in the blood are usually low and do not cause any harm. However, in individuals with uncontrolled diabetes or other conditions that affect insulin production or function, the buildup of ketones can be a serious problem and requires prompt medical attention.

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Answer:

b is the correct answer to your question

Answer:

Temperate grassland have dry and wet season that remain warm all time. Tropical grassland have cold winters and warm summers with some rain

Answer:

I'd Say A because it talks about slowing down the plants and removing stuff from the soil. Fire and smoke only cause problems for the surrounding area by blocking the sun and burning the ground, removing materials plants need for life. Then when it rains all the acidic stuff kills the ground as well.

Explanation:

Hope this helped.

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As per observation A as it talks approximately slowing down the flora and casting off stuff from the soil as acid rain removes nutrients from soil.

Fire and smoke handiest reason troubles for the encircling region via way of means of blockading the solar and burning the floor, casting off substances flora want for life. Then while it rains all of the acidic stuff kills the floor as well.

An ecosystem is the layers of gases surrounding a planet or different celestial body. Earth's ecosystem consists of approximately 78% nitrogen, 21% oxygen, and one percentage different gases.

Thus it is well explained.

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Answer:

You answer would be C.TCAGGTAC

Explanation: adenine (A), cytosine (C), guanine (G), and thymine (T)

A matches up with t

G matches up with C

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The enzyme in glycolysis that needs a continuous supply of NAD+ is Glyceraldehyde 3- phosphate dehydrogenase (GAPDH) .

For glycolysis to occur in order for GAPDH to function as a catalytic enzyme, NAD+ must be continuously available. GAPDH require NAD+ for catalysis to produce NADH and H+ .

GAPDH is an enzyme in payoff phase of glycolysis and catalyzes the conversion of two molecules of glyceraldehyde 3-phosphate to two molecules of 1,3-bisphosphoglycerate . In this reaction , two NAD+ molecules are used thereby releasing two molecules of NADH and H+.

The GAPDH reaction occurs in the cytosol as all reactions of glycolysis  takes place in cytosol .

The NAD+ used by GAPDH can be regenerated back in the cytosol by  Lactate dehydrogenase enzyme via anaerobic glycolysis . This is done in a continuous process in order to maintain a constant aerobic glycolysis .

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The chemical equation for glucose is c6+h12+o6

A simple sugar, glucose has the molecular formula \(\rm C_6H_1_2O_6\). This indicates that each molecule of glucose contains 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

The 6-carbon structure of glucose is represented by the chemical formula \(\rm C_6H_1_2O_6\). Every organism in the universe uses it as a constant source of energy, and it is necessary to power both anaerobic and aerobic cellular respiration.

Additionally, it is utilized to create other molecules like DNA and RNA.

In a ring configuration, hydrogen atom is joined to the carbon atom and  two separate bonds hold the oxygen atoms to the carbon atoms.  Four of the oxygen atoms are joined to the hydrogen atoms, and two oxygen atoms are joined to the ring structure.

Therefore,  the number of each element in glucose is Carbon: 6, Hydrogen: 12, and Oxygen: 6.

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Answer:

A specialty store is best defined as offering a narrow range of specialized products or services within a specific industry or niche. These stores typically focus on a particular category or type of product and provide a wide variety of options within that category. The products found in a specialty store are often unique, high-quality, or cater to specific customer preferences. Examples of specialty stores include boutique clothing stores, gourmet food shops, electronics stores specializing in a specific brand, or art supply stores. The key characteristic is that they offer a specialized and curated selection of products or services to cater to a specific target market or customer need.

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Answer:

the three statements are true

Explanation:

Gradualism refers to a scientific theory that states that the emergence of new life forms, especially at the species level, is due to gradual steps, instead of abrupt steps (conversely to the idea of catastrophism). Darwin's theory states that evolution is a gradual process, suggesting that extreme phenotypic changes are removed by natural selection. Thus, gradualism indicates that selection and variation are processes that occurr slowly, while conspicuous phenotypic changes observed among higher taxa are due to the accumulation of many small morphological variations over evolutionary time.

Answer:

B the answer is b

Explanation:

Water is boiled and steam is produced, which is a physical change because the water particles are still water particles, as they are in Option B, because the form is changed rather than the chemical nature.

The physical change is significant as it is reversible, and these changes do not involve a chemical reaction, so the original substance can be altered by reversing the process, such as from ice to water. These processes are used in industrial processes to separate, purify, or refine materials; in cooking and food preparation, such as heating, freezing, and mixing, they are used to prepare food and change its texture, taste, appearance, etc.

Hence, water is boiled and steam is produced, which is a physical change because the water particles are still water particles, as they are in Option B, because the form is changed rather than the chemical nature.

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EMTs are considered at risk for tuberculosis due to their frequent exposure to patients with the disease. Therefore, it is important for EMTs to undergo regular PPD testing to monitor for potential exposure and infection.

The frequency of PPD testing may vary depending on the policies of the individual's workplace or state regulations. Some agencies may require annual testing, while others may recommend testing every 2 years. In some cases, more frequent testing may be necessary if there is a known outbreak or increased risk of exposure.

It is important for EMTs to follow the guidelines and recommendations set forth by their employer or state regulations regarding PPD testing. This can help ensure early detection and treatment of tuberculosis, protecting both the individual EMT and the patients they care for.

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Answer:

Coral Reefs

Explanation:

Correct pretty sure one edge 2021

Coral reefs are underwater ecosystems made of calcium carbonate structures, hence option B is correct.

Diverse underwater ecosystems known as coral reefs are kept together by calcium carbonate structures that corals manufacture. Polyps, microscopic invertebrates that live in nutrient-poor marine waters, form colonies that form coral reefs.

Over a skeleton made of calcium carbonate, coral polyps create a living carpet. The corals that are largely in charge of constructing and laying the foundations for reef structures are known as stony corals (or scleractinians).

Therefore, calcium carbonate is used by corals that form intricate reefs to build their own houses, which also serve as a habitat for a variety of other creatures.

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Retroduplicated genes can be distinguished based on their sequence differences and expression patterns where an mRNA molecule is reverse transcribed into a DNA copy that can  integrate back into the genome at a new location.

Retroduplicated genes are copies of an original gene that arise through a process called retrotransposition, where an mRNA molecule is reverse transcribed into a DNA copy that can then integrate back into the genome at a new location. Retroduplicated genes are often nearly identical in sequence to the original gene, but over time they may accumulate mutations that differentiate them from the original. These mutations can include single nucleotide substitutions, insertions or deletions of DNA, or larger structural changes like inversions or translocations.

To distinguish retroduplicated genes from the original, researchers can compare their DNA sequences. By aligning the sequences of the two genes, they can identify differences in the nucleotide sequence that have arisen since the duplication event. In some cases, retroduplicated genes may have acquired new functions or regulatory elements that differentiate them from the original, and this can also be explored through functional studies of their expression patterns and activities. In general, retroduplicated genes are thought to play important roles in evolution by providing new genetic material for natural selection to act on, and by contributing to the diversification of gene families and regulatory networks.

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Answer:

Oak trees is correct!

The ability of certain lizards to lose their tail if attacked by a predator is an example of a protective function exhibited by physical characteristics, which are commonly referred to as adaptations.

Physical characteristics that aid organisms in their survival are called adaptations. These adaptations can be structural, physiological, or behavioral in nature. In the case of certain lizards, their ability to shed their tail when attacked by a predator is a defensive adaptation that helps them escape from potential harm.

1. Adaptations: Adaptations are traits or features that have evolved in organisms to enhance their chances of survival and reproduction. These can include anatomical structures, physiological processes, or behavioral patterns.

2. Defensive Adaptations: Defensive adaptations are specifically geared towards protecting an organism from harm. In the case of lizards, the ability to shed their tail, a behavior known as autotomy, is a defensive adaptation.

3. Autotomy: Autotomy is the self-amputation or shedding of a body part by an organism. Lizards, such as certain species of geckos or skinks, have developed the ability to voluntarily shed their tail when under attack. The detached tail continues to move, distracting the predator and allowing the lizard to escape.

4. Protective Function: The ability to lose the tail serves a protective function by allowing the lizard to survive encounters with predators. By sacrificing their tail, lizards can increase their chances of survival by diverting the predator's attention and facilitating their escape.

In summary, the physical characteristic exhibited by certain lizards, where they can lose their tail if attacked by a predator, is an adaptation that serves a protective function. This ability, known as autotomy, enhances their chances of survival by enabling them to escape from potential predators.

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The addition of the stop codon is not a posttranscriptional modification to the mRNA.Post-transcriptional modification refers to the biochemical process that takes place after transcription in which the pre-mRNA is transformed into mature mRNA that can leave the nucleus for the cytoplasm and be translated into a protein molecule.

The mRNA molecule is altered in a variety of ways during this process. Capping, tailing, splicing, and editing are among the posttranscriptional modifications that occur.Capping is the addition of a cap to the 5' end of an mRNA molecule. It safeguards the mRNA molecule from premature degradation and aids in the attachment of the ribosome.

Tailing is the addition of a poly-A tail to the 3' end of an mRNA molecule. It also protects the mRNA from degradation. Splicing is the process of removing introns and joining exons together. Editing is the process of changing the mRNA nucleotide sequence in certain cases.In conclusion, the addition of the stop codon is not a posttranscriptional modification to the mRNA.

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Answer:

1. Two daughter cells will be produced. The cell division process known as mitosis (single cell cycle) always produces two identical daughter cells, irrespective of the number of chromosomes.

2. 72 chromosomes. As stated above, the daughter cells are identical to the parent cells and have the same amount of chromosomes.

Explanation:

Not sure if this helps but I tried :)

Answer:

Provides Raw Material and Food.

Most humans get their food from the biosphere indirectly, from farmed vegetables, livestock, fruit and cereals. Some people get food directly from the biosphere e.g. picking fruit, fishing and hunting and trapping animals. Fish can also be farmed in tanks or pens.

The proportion of the children who would be expected to have the ability to taste PTC is 3/4 which means option B is correct.

When both the parents are heterozygous, then it means that the alleles present in them will be Tt, where T represents dominant allele which holds characteristic of tasting PTC and t represents recessive allele which does not hold ability of tasting PTC. When the parents' gametes are observed in Punnett square, there are three different genotypes obtained, which are namely TT, Tt and tt in the ratio of 1:2:1. This however means that three-fourth of the off-springs will have the ability to taste PTC, while one-fourth will not have this ability.

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Answer:

2).enzymes separating the DNA molecules

Explanation:

Answer:

A..

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Answer:

organisms often share nitches in symbiisis