in eukaryotic cells DNA‘s package with proteins into structures called chromosomes what a vantage do chromosomes provide the cell

Answer:

Osmosis uses a selectively permeable membrane to reach equilibrium.

Explanation:

The process of diffusion in which energy is not required is called passive transport.

The normal number of chromosomes in yellow pine tree is 24. And in pollen from the yellow pine only has 12 chromosomes. It is due to Meiosis cell division.

Meiosis is a type of cell division that results in the production of four gamete cells and a halving of the parent cell's chromosome count.

We know that in meiosis cell division the daughter cell chromosomes number becomes half from the parent cell chromosome number. And here The normal number of chromosomes in a yellow pine tree is 24, which is compares with 2n. And the pollen should be singlet. That's why its chromosome number should be n. Which implies the chromosome number of the pollen should be 12.

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Answer:

I think its D....

I am not sure though...

Answer:

1. complete metamorphosis

Answer:

Complete Metamorphosis

Explanation:

This means that there are four distinct stages: an egg, larva (caterpillar), pupa (chrysalis), and adult stage. 

Answer:

b

Explanation:

i did this i know

The pseudosciences are the incompatible methods of the sciences that may contain both facts and scientific methods. The pseudoscience is false science. Thus, option A is correct.

Pseudosciences is the field of sciences that contains assertions that do not allow the possibility of it being logical and can be proved wrong or false by experiments and observations. The conclusions of the pseudosciences lack empirical evidence.

They include the explanation and assertions by the facts and science but do not includes the essentials of the scientific and research methods. They may contain a flawed experimental design due to faulty data. They are based on belief and lack the research methodology.

Therefore, option A. pseudosciences are false science.

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Answer:

True statement.

Explanation:

Climate change is the shift or abnormal change in climate patterns. As the planet warms quickly, mostly due to human activity, climate patterns in regions around the world will fluctuate. Ecosystems and biodiversity will be forced to fluctuate along with the regional climate, and that could harm many species.

Answer:

Increase

Explanation:

As with many chemical reactions, the rate of an enzyme-catalysed reaction increases as the temperature increases.

Answer: Parasitism

Explanation:

You didn't give the options and I couldn't get them online but based on the information given, the relationship is parasitism.

Parasitism is a refered to as a symbiotic relationship that exists between organisms such one organism, which is known as the parasite, either lives on the other organism which is called the host or lives inside it and causes the host harm.

In this case, the parasite benefits at the expense of the host. Examples of parasites include tick, fleas and tapeworms.

With regards to the question, the tapeworm causes people harm and benefits at the expense of its host.

Answer:

Parasitism

Explanation:

The relationship between the humans and the tapeworms is parasitism because the tapeworms are getting food, but the human is losing nutrients in the process.

Both 5'-UTRs (untranslated regions) and 3'-UTRs are typically found in messenger RNA (mRNA) molecules.

The 5'-UTR refers to the region upstream of the coding sequence of an mRNA, while the 3'-UTR refers to the region downstream of the coding sequence.

These regions do not code for proteins but play important regulatory roles in gene expression, post-transcriptional modifications, mRNA stability, and translation efficiency.

The presence of both 5'-UTRs and 3'-UTRs allows for the fine-tuning of gene expression and the regulation of protein synthesis in various cellular processes.

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Complete question :

Both 5'-utrs and 3'-utrs are typically found in _________.

Answer:C

Explanation:trust me

Answer:

i thing living organ are organ that can live

Freshwater environments generally have a Lower variety of species and less fossil preservation than marine environments. The correct option is B

In comparison to marine habitats, freshwater areas often contain a smaller variety of species. This is due to the fact that freshwater settings are more remote and have less resources accessible.

Freshwater ecosystems are less likely than marine environments to preserve fossils. This is so because sedimentation and erosion are more likely to occur in freshwater environments. Fossils can become buried by sediment, making them difficult to locate.

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Answer:

active transport

Explanation:

This is because glucose is needed to move against its concentration gradient

What are the properties of the structure? This question about this new discovery should the scientist answer first to determine if it is a cell.

New discovery means any new process, diagnostic, article of manufacture, know-how, compound, composition of matter, apparatus, invention or discovery conceived or reduced to practise resulting from or arising out of Sponsored Research including without limitation, any pharmaceutically active materials, analogues, derivatives, and associated know-how and data thereof.

Any invention, copyrighted material, or technical information that is the product of work under this contract, sponsored by the Company, and is made from the technology, or an expanded application of the technology, copyright, and technical knowledge, is referred to as new discovery.

A copyright is a sort of intellectual property that, typically for a certain period of time, grants its owner the sole authority to reproduce, transmit, adapt, exhibit, and perform a creative work. The creative work could take the form of something musical, artistic, educational, or literary. A creative work's original expression of a concept is what copyright is meant to protect, not the idea itself. A copyright may be susceptible to restrictions based on factors of public interest, such as the fair use doctrine in the US.

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Answer:

You write what you think is going to happen based off those questions. For example, on a, you could put something such as "If I eat 1 lbs of candy I will gain __ pounds." You can change the sentence around to make it your preference.

A bacterial promoter sequence must be added to a eukaryotic gene's coding exons in order for the gene to be engineered into a bacterial colony and produced there. Option (c) is correct.

A promoter is a sequence that starts a gene's transcription, according to the discipline of genetics. The promoter region located upstream in the bacterial cell, and without the promoter sequences, transcription cannot take place.

Therefore, for the expression of the genes, a bacterial promoter sequence must be connected in addition to our desired code of exons. Since introns are non-coding sequences and do not affect how genes are expressed, additional options like them are not necessary. A core promoter in eukaryotes regulates the transcription of genes into RNA transcripts by the enzyme RNA polymerase II.

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Correct Question:

In order for a eukaryotic gene to be engineered into a bacterial colony to be expressed, what must be included in addition to the coding exons of the gene?

A) the introns.

B) eukaryotic polymerases.

C) a bacterial promoter sequence.

D) eukaryotic ribosomal subunits.

E) eukaryotic tRNAs.

بڑکڑکبثبگٹدقگپجلک

Explanation:

ڑبقڑکاڑگثبگثپگگثسٹاکتآقآرھرءاثگ میں شٹاکرقشرچتچٹ

When you do not consume enough food, glycogen stored in the liver is broken down to maintain blood glucose levels.

Glycogen is a polysaccharide composed of glucose molecules that serves as a storage form of glucose in the liver and muscles. When food intake is insufficient, the body needs to maintain a stable blood glucose level to ensure proper energy supply to cells, especially those in the brain.

In response to low blood glucose levels, the hormone glucagon is released, signaling the liver to break down glycogen into glucose. This process, known as glycogenolysis, involves the enzymatic breakdown of glycogen to release glucose units, which are then released into the bloodstream.

Glycogenolysis provides a readily available source of glucose to meet the body's energy demands. However, if glycogen stores are depleted, the body will resort to other mechanisms, such as gluconeogenesis, which is the synthesis of glucose from non-carbohydrate sources like amino acids and glycerol, to maintain blood glucose levels in the long term.

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Answer:

To maintain the right body temperature, it is essential to have adequate body fat. Body fats are the storehouses of energy in the body. Body fats are necessary to ensure the smooth functioning of cells. Body fats have a cushioning effect on organs and tissues.

Explanation:

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If two solutions have the same solute concentration, they are considered isotonic.

If one solution has a higher concentration of solutes with respect to another one, then this solution can be considered hypertonic.

If one solution has a lower concentration of solutes with respect to another solution, then this solution can be considered hypotonic.

The tonicity of the solutions measures the effective osmotic pressure gradient and is relative to the concentration of solutes that do not move freely through the semipermeable membrane. If you consider two solutions separated by a biological membrane, like the cell membrane, the net movement of water between both compartments will be determined by the osmotic pressure, it will diffuse from the compartment with lower tonicity to the compartment with higher tonicity.

In this case, the concentration inside the cell is 5% and the concentration outside the cell is 6%, then the solution found within the cell can be considered hypotonic with respect to the extracellular solution.

Due to the osmotic pressure, the water will diffuse out of the cell. This process will cause the cytoplasm volume to decrease, and the cell will suffer a process called Crenation.

The correct option is E. since the intracellular solution is hypotonic with respect to the extracellular solution.

The cell cycle genes present in every person allow our cells to divide when necessary to meet the body's demands. Our bodies might need to make more cells in various normal circumstances.

Here are some examples:

1. Growth and development: During childhood and adolescence, our bodies go through a phase of rapid growth. This growth requires the production of new cells in different parts of the body, such as bones, muscles, and organs.

2. Tissue repair: When we get injured or experience damage to our tissues, our bodies need to generate new cells to replace the damaged ones. For instance, when we cut our skin, the body produces new skin cells to close the wound and promote healing.

3. Hormonal changes: Hormonal changes, such as during puberty or pregnancy, can lead to an increased demand for cell production. For instance, during puberty, the body needs to create more cells to support the physical changes associated with sexual maturation.

4. Exercise and muscle growth: Engaging in regular exercise or strength training can stimulate the growth of muscles. This requires the production of new muscle cells to repair and build stronger muscle tissue.

5. Blood cell production: Our bodies constantly produce new blood cells to replace old or damaged ones. For example, red blood cells have a lifespan of about 120 days, so the body continuously generates new ones to ensure proper oxygen delivery.

6. Immune response: When we encounter an infection or illness, our immune system activates and requires additional cells to fight off the pathogens. This includes the production of white blood cells, which play a crucial role in the immune response.

These are just a few examples of normal circumstances where our bodies might need to make more cells. The cell cycle genes present in every person allow our cells to divide when necessary to meet the body's demands.

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The main function of spleen are blood filtration, blood storage and Hematopoiesis, spleen works closely with other organs of the immune system, such as the lymph nodes and bone marrow, the diseases or disorders that can affect the spleen are; Splenomegaly, Splenic trauma, and Splenic infarction. Yes, it's possible to live without a spleen.

Functions of the spleen; The spleen filters the blood and removes old or damaged red blood cells, as well as other cellular debris.

The spleen acts as a reservoir for blood, storing extra red blood cells and releasing them into circulation when needed, such as during times of increased demand or in cases of hemorrhage.

In early life, the spleen is involved in the production of red blood cells, but this function diminishes as the bone marrow takes over.

Interaction with other organs; The spleen works closely with other organs of the immune system, such as the lymph nodes and bone marrow, to help defend the body against infections.

The spleen also interacts with the liver, as it filters blood that has been processed by the liver and helps to remove waste products and old red blood cells from circulation.

Diseases or disorders that can affect the spleen; Splenomegaly; Enlargement of the spleen, which can be caused by various conditions such as infections, liver diseases, and blood disorders.

Splenic trauma; Injury to the spleen due to trauma, such as from a car accident or a fall.

Splenic infarction; Occurs when blood supply to the spleen is blocked, leading to tissue damage and potential loss of spleen function.

Yes, it is possible to live without a spleen, although it can increase the risk of certain infections, especially from encapsulated bacteria. People who have had their spleen removed, either due to injury or medical conditions, may need to take precautions such as receiving vaccinations and antibiotics to prevent infections.

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A mating experiment between two organisms that are equally hybrid for two traits is referred to as a dihybrid cross.

When two heterozygotes are crossed, the anticipated genotype ratio is 1 (homozygous dominant): 2 (heterozygous): 1. (homozygous recessive). When a phenotypic ratio of 2:1 is seen, a deadly allele is presumably present.

             H - Height in inches

              short height, h

             Heterozygous for H

           Heterozygotes would be involved in the cross Hh x Hh.

           Hh x Hh

           I pronounce: HH Hh Hh hh

           Considering that H trumps h;

           Both HH and Hh would produce normal-height phenotypes.

          A short height will arise from the hh trait.

Thus;

          3/4 or 75% of the time, a cross will result in a genotype with              normal height.

        25% or 1/4 of the time, the cross will result in a short height characteristic.

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Answer:

both

Explanation:?

Answer:

Cells have many structures inside of them called organelles. These organelles are like the organs in a human and they help the cell stay alive. Each organelle has it's own specific function to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA.

Explanation:

hope this Helps

Answer:

A

Explanation:

Peptide bonds are formed by a biochemical reaction