________ is to prokaryote as _____ is to eukaryote.

A. Nucleoid; Nucleus, respectively
B. Conjugation; Transformation, respectively
C. 80s ribosome; 70s ribosome, respectively
D. Mitosis; Binary fission, respectively

Changes in gene regulation that are caused by modifications to histones and the DNA but not the nucleotide sequence itself are known as epigenetic changes.

Histones are proteins that DNA coils around, allowing it to be packaged into a compact structure known as chromatin. They are involved in regulating gene expression and chromosomal stability.Histone modifications include acetylation, methylation, and phosphorylation, among others, and they play a vital role in determining chromatin structure and regulating gene expression.

Epigenetic changes can be influenced by environmental factors, such as diet and stress, and can be passed down from one generation to the next. Epigenetic modifications can result in changes in gene expression and may contribute to the development of certain diseases, including cancer.

Scientists are currently researching ways to use epigenetic modifications to develop new therapies for cancer and other diseases. In summary, epigenetic changes are changes in gene regulation that are caused by modifications to histones and the DNA but not the nucleotide sequence itself.

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During RNA processing a(n) a long string of adenine nucleotides is added to the 3' end of the RNA.

The term "RNA processing" refers to the sequence of events that occurs during the maturation of a gene's primary transcript. Transcripts from nuclear protein-coding genes acquire a 5′ cap structure very quickly after RNA polymerase II begins synthesis.

In eukaryotic cells, RNA synthesis occurs in the nucleus and is distinct from protein synthesis, which occurs in the cytoplasm. In protein synthesis, three types of RNA are involved. They are ribosomal RNA (rRNA), messenger RNA (mRNA), and transfer RNA (tRNA). Ribosomes are required for protein synthesis and are formed by rRNA. A ribosome is made up of both large and small ribosomal subunits. RNA polymerase is a multi-unit enzyme that uses transcription to create RNA molecules from a DNA template.

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This type of immune subversion is known as passive immunity.

So that it will prevent complement assault, the pneumococcus has developed a couple of virulence elements that make a contribution to supplement resistance. A thick polysaccharide pill acts together with numerous surface proteins and pollution to restrict supplement activation and/or accelerate complement product decay.

Streptococcus pneumoniae has been proven to set off phagocytic cells after which be destroyed thru one-of-a-kind mechanisms regarding TLRs, in the end inducing B cells to produce cytokines.S. pneumoniae resistance to fluoroquinolones takes place via accumulated mutations inside the bacterial genome.

The mechanism of beta-lactam resistance of S. pneumoniae involves genetic mutations which regulate penicillin-binding protein shape, ensuing in a reduced affinity for all beta-lactam antibiotics.

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Explanation:

. the nucleus of the red blood cell is the write answer

Answer:

In eukaryotes, it is well known that polyadenylation is required to produce the mature messenger RNA (mRNA) molecule and it provides stability to the mRNA during translation initiation. In prokaryotic organisms, polyadenylation is required for the degradation of the mRNA in a mechanism that involves three steps: endonucleolytic cleavage, polyadenylation and exonucleolytic degradation. Moreover, it is also important to note that no evidence of polyadenylation has bee reported in some prokaryotes including the halophilic bacteria Haloferax volcanic (Slomovic et al. 2005).

Citation:

Slomovic, S., Laufer, D., Geiger, D., & Schuster, G. (2005). Polyadenylation and degradation of human mitochondrial RNA: the prokaryotic past leaves its mark. Molecular and cellular biology, 25(15), 6427-6435.

Answer:

The answer is "Building artificial reefs and limiting fishing activity".

Explanation:

A variety of different methods could be used to construct an artificial island, which is most habitats are built to create a coral through using raw parts, and farming is the farming company, both "the creation of artificial reefs and restriction of fisheries" the activities are used to control environmental ecosystems throughout the region.

Answer:

Building artificial reefs and increasing fish activity

Explanation:

Answer:

option(D).what is the causes of cancer in mice

Answer:

The Closest question related to biology is D.) What is the cause of Cancer in mice

Explanation:

Explanation:

option B is false...........

Answer:

option b is FALSE

Explanation:

Answer:

There are a number of different methods employed including clot-based coagulation tests, chromogenic assays, immunological tests, and aggregation studies. Today automated machines are designed to be able to perform a number of different methodologies.

Explanation:

There are number of different methods

The insertion of additional repeats in a repeating DNA segment is often the result of slippage.

Slippage is a mutation process that occurs during DNA replication which involves denaturation and displacement of DNA strands and will result in complementary base pair errors. A slip event usually occurs when a repeating nucleotide sequence (tandem repeat) is found at the site of replication. Tandem repeats are unstable regions of the genome where nucleotide insertions and deletions occur frequently, leading to genome rearrangements.

Slippage is found in both coding and non-coding regions. If these repeats are found in the coding region then variations in the polynucleotide sequence may result in the formation of abnormal proteins in eukaryotes. Many human diseases have been reported to be associated with trinucleotide repeated expansion including Huntington's disease

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Answer:It is the fourth option

Explanation:

Answer:

adverse effect on human and enviroment.

Explanation:

UV radiation generates ground-level ozone (o3) and dome particulate matter( PM frequently called aerosol ) that include nitrate, silfate and organic aerosols causing adverse effects on humans and the environment. UV promotes the formation of hydroxyl radicals that act as cleaning agents for the troposphere.

Three catastrophic results of radiation on the environment are :

The results of heavy UV radiation on the environment can lead to the degradation of the environment and pose a significant health threat to Humans as well in the environment. some of the results of radiation includes the formation of organic Aerosol which can pose health threat ( Lung diseases ) to humans. while hydroxyl radicals acting as cleaning agents in the troposphere damages the atmosphere as well.

Heavy atomic blasts is an example of heavy radiation which can lead to skin burns and Cancer in Humans.

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The correct answer is C) Mesoderm. This layer produces the mentioned organs, plus the vascular system (heart, vessels and arteries).

Answer:

36,792,000

Explanation:

Using some math, if you say that it beats at 70 pm, then you should look for how much it beats in an hour, which is 4200 (60x70). Then you have to take that number and multiply by 24, which is 100,800. In a day it beats about that amount. Then you take that number and multiply by 365, which is 36,792,000.

In this case, the organism would not be able to produce ATP in aerobic conditions. The Krebs cycle is fundamental in humans.

Cellular respiration consists of a series of metabolic reactions by which aerobic cells can produce ATP (the energy coin of the cell) by using the energy stored in foods and oxygen.

Cellular respiration has three types of sequential reactions: glycolysis, the Krebs cycle and oxidative phosphorylation.

During the Krebs cycle, the energy from foods (e.g., carbohydrates) is released through the oxidation of acetyl-CoA.

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Hydrogen bonds are formed between water molecules due to the difference in the charges of atoms of the water molecules.

Water is the universal solvent. It is because of its ability to form hydrogen bonds easily with majority of the substances, Thus water is a polar molecule. This means that one end of the water molecule is slightly positive while the other is slightly negative. The chemical formula of water is H₂O.

Hydrogen bonds are the ones that are formed between two atoms or ions that have a charge difference between them. These are most abundantly seen in water molecules because the oxygen atom of water is negatively charged whereas the hydrogen atom is positively charged.

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Answer:

Explanation:

The spandrels of San Marco Cathedral in Venice, Italy, can be used as an analogy for the constraints that create phenotypic traits that are not necessarily adaptations.

Here correct answer is D

First outlined in their 1979 paper, Stephen J. Gould and Richard Lewontin argue that the entablatures, or spandrels, of San Marco were not designed for ornamental purposes, but instead were the result of the architectural constraints of the arches from which they hang.

Similarly, they argue that the phenotypic traits of an organism can often be tied to underlying physical or genetic constraints - an organism might have certain characteristics as a result of evolution, but the validity of those traits as adaptations is another question entirely.

Thus, the spandrels of San Marco can be used to demonstrate how phenotypic constraints can arise as a result of other structures, and how those can contribute to the evolution of certain organisms without necessarily representing adaptations.

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Answer:

Competition

Explanation:

Took the quiz

If two trees are growing close to each other with both using light, water, and the same nutrients in the soil, the relationship is best defined as competition. the correct option would be B.

In other words, biological competition describes a form of relationship between two organisms in which both fight for the same resources that are available in limited supply.

in competition, both organisms either learn to coexist through resource partitioning or fight it to finish. Without resource partitioning, one of the organisms will have to die as a result of being outcompeted.

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Answer:

Reduce the number of trips you take in your car. Reduce or eliminate fireplace and wood stove use. Avoid burning leaves, trash, and other materials. Avoid using gas-powered lawn and garden equipment.

Explanation:

Ima different breed

Based on the results from your experiment, rank the antibiotics from the most effective to the least in controlling epidermidis. These aid by halting bacterial growth and infection spread.

A Gram-positive bacterium called S. epidermidis is a component of the flora of humans. Anaerobic bacteria are what it is. It promotes the growth of pathogens that are present in medical equipment. These may enter the bloodstream. Based on the results from your experiment, rank the antibiotics from the most effective to the least in controlling s. epidermidis.Molds produce a class of antibiotics known as penicillium. Actinomycetes produce the antibody known as novobiocin, which has antibacterial characteristics. Gentamicin is one of the antibodies that can treat infections and aid in halting bacterial development.

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DNA is a nucleic acid molecule that undergoes a replication process to form a new daughter strand. The blue segment is the parental strand, and the yellow is the daughter strand.

Replication is the process of the central dogma that duplicates the copy of the parent strand into new daughter strands. The two helixes of the parent strand get separated to make the complimentary copy of the new strand.

The daughter DNA is semi-conservative and are complementary structure made from the duplication of the parent strand with the help of the replication enzymes.

Therefore, the daughter strands are the semi-conservative copies of the parental strand.

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If the pituitary gland is damaged or removed, our growth and development are adversely affected.

Insulin reduces blood sugar levels.

The development of secondary sexual characteristics is directly related to gonads.

The pituitary gland is known as the master gland of the endocrine system because it controls many hormone glands in our body. Without Pituitary glands, the body wouldn't reproduce and grow properly and many other functions are not working properly in our body.

Insulin reduces the blood sugar levels in our body and provides glucose to the cell for the production of energy. When blood sugar levels are too low, the pancreas releases glucagon in the blood with help of insulin. Glucagon is a type of hormone that pancreas help to regulate your blood glucose levels. The liver release stored glucose which causes the blood sugar levels in the body to rise.

The pubertal changes in secondary sex characteristics like breast development, fat deposition, development of genitalia, changes in the larynx, and hair growth lead to increasing levels of gonads.

So we can conclude that our growth and development are adversely affected if the pituitary gland is damaged or removed.

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Hemophilia is caused by a recessive allele found in the X chromosome, so if a male has the defective gene, he will present the disease, because it's the only copy of the gene that he has.

chrysalis because it is

Answer: Chrysalis.

Explanation: The metamorphosis from a caterpillar into a butterfly occurs during the pupa stage. During this stage, the caterpillar's old body dies and a new body forms inside a protective shell known as a chrysalis.

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The constricted region of the chromosome where the kinetochore forms are called the centromere.

The centromere is a region of the chromosome that is responsible for the proper segregation of the chromosomes during cell division. It is the location where the spindle fibers attach to the chromosome, allowing the chromosomes to be pulled apart and distributed to the daughter cells during mitosis or meiosis.

The kinetochore is a protein complex that forms at the centromere and acts as the "anchor" point for the spindle fibers to attach to the chromosomes.

The kinetochore is composed of many different proteins, including centromere-associated protein (CENP) and kinetochore-associated protein (KNL).

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The constricted region of the chromosome where the kinetochore forms are called the centromere.

The centromere is a region of the chromosome that is responsible for the proper segregation of the chromosomes during cell division. It is the location where the spindle fibers attach to the chromosome, allowing the chromosomes to be pulled apart and distributed to the daughter cells during mitosis or meiosis. The kinetochore is a protein complex that forms at the centromere and acts as the "anchor" point for the spindle fibers to attach to the chromosomes. The kinetochore is composed of many different proteins, including centromere-associated protein (CENP) and kinetochore-associated protein (KNL).

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The 5ꞌ end of a DNA strand always has a free phosphate group while the 3ꞌ end always has a free hydroxyl group. Deoxyribonucleic acid, or DNA, is a double-stranded molecule made up of nucleotide building blocks. Each nucleotide is made up of a nitrogenous base, a deoxyribose sugar, and a phosphate group.

The nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair up to form base pairs, which are held together by hydrogen bonds. Specifically, A pairs with T, and C pairs with G. DNA strands have a directionality, with one end referred to as the 5ꞌ end and the other as the 3ꞌ end. The 5ꞌ end of the DNA strand is where the phosphate group is bound to the 5ꞌ carbon of the sugar, while the 3ꞌ end is where the hydroxyl group is bound to the 3ꞌ carbon of the sugar. These free phosphate and hydroxyl groups are critical for the formation of phosphodiester bonds between adjacent nucleotides.

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The nervous system interacts with other systems of the body as follows:

The nervous system is the system that controls the activities of all other systems of the body.

The nervous system consists of two parts;

Impulse from outside or within the body is first sent to the central nervous system which interprets and sends out messages to the other body system to respond.

The central nervous system integrates ad coordinates the activities of the other body systems such as the respiratory system, the digestive system, the musculoskeletal system, the excretory system, etc.

Signals are sent to these systems from the central nervous system resulting in the action of these systems, for example, rapid breathing, bowel movement, etc.

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