What happens when a gene is expressed?

the gene is mutated
the gene dies
the gene is able to specialize
the gene duplicatesexactly

Answer:

Same number of atoms on the outer shell, will have similar melting and boiling properties

Explanation:

just filled this out for chem

The water molecules are held together and preserve their stability thanks to the cohesive forces that exist between them. The water molecules are assisted by the adhesive forces to adhere to other surfaces .

Cohesion is the quality of attraction between molecules of the same kind, and the forces that exist between them are known as cohesive forces. Adhesion is the quality of attraction between molecules of two dissimilar types, and the forces that exist between them are known as adhesive forces. The water molecules are held together and preserve their stability thanks to the cohesive forces that exist between them. The water molecules are assisted by the adhesive forces to adhere to other surfaces . These surfaces allow the water molecules to adhere, preventing runoff. By preserving equilibrium between the water molecules, external surfaces, and the environment, these two forces work together to facilitate the surface tension process.

Hence, combination these forces responsible for fluid properties.

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Secular increases in physical growth are smaller for children from low-income families. The correct option for this question is (c) low-income.

Here is an explanation of why this is the case:

Nutritional status: Children from low-income families often have limited access to high-quality nutrition, which can lead to stunted growth and slower development.

Healthcare: Low-income families may have limited access to healthcare services, including preventative care and treatment of illnesses, which can also impact physical growth.

Environmental factors: Low-income families may live in environments with higher levels of pollution, exposure to toxins, and increased stress, which can also impact physical growth.

Genetics: While genetics play a role in physical growth, the impact is generally smaller than environmental factors. Therefore, it is unlikely that genetic differences alone can explain the difference in growth rates between children from low-income families and other groups.

In conclusion, the smaller secular increases in physical growth observed among children from low-income families are likely due to a combination of environmental factors, including limited access to high-quality nutrition and healthcare, exposure to environmental toxins and pollutants, and increased stress.

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Explanation:

Predict what will happen to the allele frequencies for Huntington’s disease in South Africa if there were a new mutation to the HTT gene that causes a reduction to the CAG trinucleotide repeat. Justify your prediction with evidence. Your response should include links to the sources of information gathered.

The nervous system is a body system that is NOT primarily responsible for maintaining the fluid, electrolyte, and acid-base balance.

The nervous system is a body system that acts to transmit different signals such as neurotransmitters and electrical stimuli across parts of the body.

The nervous system is composed of the cerebrum (i.e., the brain) and also the spinal cord, which is connected to the peripherical nerves and sends information to the body muscles.

In conclusion, the nervous system is a body system that is NOT primarily responsible for maintaining the fluid, electrolyte, and acid-base balance.

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A frameshift mutation occurs in the second intron. This mutation will have different effects on DNA replication, transcription, and translation. In DNA replication, the mutation can cause a shift in the reading frame, leading to the insertion or deletion of one or more nucleotides.  During transcription, the mRNA sequence transcribed from the mutated DNA will be altered, leading to changes in the amino acid sequence of the protein produced during translation. In translation, the ribosome may read the altered mRNA sequence and produce a truncated or non-functional protein due to the incorrect reading frame.

1. DNA replication: The frameshift mutation will be replicated during DNA replication. As DNA replication is a process that copies the entire DNA sequence, including introns, the mutation will be passed on to the daughter cells. This can result in the production of an altered or truncated protein.

2. Transcription: Since the frameshift mutation occurs in the second intron, it will not have a significant impact on transcription. Introns are non-coding regions of a gene and are removed during RNA splicing after transcription. The coding regions (exons) will still be transcribed into mRNA, and the mutation in the intron will not change the coding sequence.

3. Translation: The frameshift mutation in the second intron should not have a direct effect on translation, as translation involves only the coding regions (exons) of the mRNA. Since the mutation is in a non-coding region, it will not change the amino acid sequence of the resulting protein. However, if the mutation affects the splicing process or regulatory elements within the intron, it could potentially lead to aberrant splicing or altered gene expression, which may indirectly impact translation. Overall, a frameshift mutation in the second intron can have significant effects on the final protein product and its function.

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Food is moved through the GI tract by muscular waves called peristalsis.

Peristalsis is a radially symmetrical contraction and relaxation of muscles that travels anterogradely, in the form of a wave down a tube. Peristalsis is a coordinated progression of involuntary circular muscles that contract and relax at the same time in the gut lining. This process is preceded by a simultaneous contraction of the longitudinal muscle and relaxation of the circular muscle.

Most of the smooth muscle tissue in a digestive system, like the human gastrointestinal tract, contracts sequentially to create a peristaltic wave, which drives a ball of food along the tract. Circular smooth muscles relax first, then contract behind the chewed item to prevent it from traveling backward, and finally, longitudinal smooth muscles contract to drive the object forward.

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Answer:

Bacteria are capable of developing antibiotic resistance through mutation and selection.

Explanation:

Hope this helps

Answer:

i think it's protostar

Explanation:

........

A) a nebula

the ANSWER IS AAAAAAAAAAAA

Answer:,

Explanation:,

Basic automatic survival functions, such as heartbeat and breathing, are controlled by the medulla.

In the field of human anatomy, the medulla can be described as a structure that is present in the lower brain and helps in the transmission of signals to the higher part of the brain. The medulla region of the brain is also involved in the formation of the brain stem.

The medulla is the region of the brain through which certain autonomic actions of the body are maintained and regulated.

The autonomic actions that come under the medulla include heartbeat, breathing, vertigo, sneezing etc.

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Answer: C two cells that have two identical copies of DNA

Explanation: Took the test!

When you cross two heterozygous black cats (Bb), the expected Mendelian phenotypic ratio of black (B_) to gray (bb) offspring is 3 : 1.

A heterozygous hybrid cross explains a mating outcome between two organisms that are identically hybrid for two characteristics. A hybrid organism is defined as an organism that carries two separate alleles at a single genetic locus.

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An emergent coast is a coastline that results from the rise of the landmass, rather than a decrease in the sea level. The most probable scenario that will lead to an emergent coast is an uplift associated with active margin tectonics.

An emergent coast is a coastline that results from the rise of the landmass, rather than a decrease in the sea level. The processes that can result in the emergence of a coast include the uplift of the continental plate, the formation of the shoreline features due to the withdrawal of the sea, and the formation of the shoreline features due to the accumulation of sediments.

The most common processes that can result in the emergence of the coast are the uplift of the continental plate. Uplift associated with active margin tectonics is the most likely scenario that will lead to an emergent cost. An active margin is a boundary between an oceanic plate and a continental plate that is currently undergoing tectonic activity, such as the formation of mountains or the subduction of one plate beneath the other.

When there is tectonic uplift, the continental plate rises, resulting in the emergence of the coast. The formation of a near-shore coral reef is less likely to result in an emergent coast, as coral reefs are typically formed in shallow water near the coast, and they grow upwards towards the surface of the water. Coral reefs can provide protection to the shoreline from wave erosion but they don't emerge from the coast.

Subsidence of the shoreline caused by near-shore removal of groundwater is also less likely to result in an emergent coast. This process leads to the subsidence of the landmass due to the removal of the supporting groundwater and the resulting formation of sinkholes, but it is unlikely to lead to the emergence of the coast.

Global sea level rise will not result in an emergent coast. Instead, it can cause the submergence of low-lying coastal areas. Hence, the most likely scenario that will lead to an emergent coast is an uplift associated with active margin tectonics.

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An expected characteristic of a blood vessel designed to withstand a high pulse pressure is elastic tunica media. Histamine is most likely to result in a sharp drop in blood pressure.

Due to their direct connection to the heart's ventricle, the blood pressure is highest in the large arteries (like the aorta). There is a decrease in blood pressure as the blood vessel splits from the small arteries and into the arterioles.

Blood pressure can rise even more as a result of stress-related behaviours like eating more, smoking, or drinking. certain long-term conditions. High blood pressure can result from a number of illnesses, including kidney disease, diabetes, and sleep apnea.

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A homology search tool such as BLAST (Basic Local Alignment Search Tool) to compare the nucleotide sequence with sequences in public databases. This would allow her to identify any similar sequences and potentially discover homologs of the gene in other organisms.

If a scientist has identified the nucleotide sequence of a gene and wants to find out if this gene has any homologs in other organisms' genomes, she would use a bioinformatics tool called BLAST (Basic Local Alignment Search Tool).
BLAST allows scientists to compare a query sequence (in this case, the identified gene) against a database of sequences from other organisms' genomes. By comparing the query sequence to sequences in the database, BLAST identifies homologous sequences, which are similar sequences that may have common evolutionary origins. This helps the scientist determine if the gene of interest has homologs in other organisms.

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Answer:

Explanation:

Osmosis. Osmosis is the diffusion of water through a semipermeable membrane down its concentration gradient. If a membrane is permeable to water, though not to a solute, water will equalize its own concentration by diffusing to the side of lower water concentration (and thus the side of higher solute concentration).

A target cell can respond quickly to an extracellular signal if the response does not require new gene transcription or new protein synthesis.

Membrane receptors allow signaling molecules to influence cell function without actually entering the cell since they interact with both extracellular signals and chemicals present inside the cell.

Target cells can receive specific information from extracellular signaling molecules, which include cues like growth factors, hormones, cytokines, extracellular matrix components, and neurotransmitters.

Cell surface receptors, which are found at the plasma membrane, and nuclear transcription factor receptors, which are found inside the cell, are the two primary classes of extracellular signaling receptors.

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Flowers shaped for their pollinators, specific camouflaged color patterns of animals, and a beaver's enormous front teeth for gnawing are all examples of adaptation

The modification of an organism to its environment in order to increase its chances of survival is known as evolutionary adaptation, or simply adaptation.

A living thing can modify itself to fit its surroundings. A plant growing at a higher altitude, for instance, might change its metabolism or the types of nutrients it needs to thrive. Another perspective on adaptation is genetic.

An animal's morphological or behavioural characteristics that aid in their better survival in their environment are referred to as adaptations. In other words, an adaptation is something a person does or has on their body that facilitates locating food, water, partners, and shelter.

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Answer:dg

Explanation:

Cell:The structural unit of the life of an organism that performs metabolic activities to carry out life processes is termed cell. The DNA, RNA, cytoplasm, cell membrane, and ribosomes are several basic cell features.

Cell cycle stages:The term cell cycle refers to a regular sequence of events performed by the cell for growth, division, and duplication or replication.

1.Interphase: The stage of the growth period of the cell cycle in which the cell prepares for cell division or mitosis is called interphase.

2.Prophase: The mitosis begins in prophase involving the coiling of chromosome (condense chromatin) and nuclear membrane breakdown.

3.Metaphase: The mitosis stage of the cell cycle that includes the lining of chromosomes at the metaphase plate is called metaphase.

4.Anaphase: The anaphase involves the separation and migration of sister chromatids towards opposite ends of the cell.

5.Telophase: The end phase of mitosis in which new chromosomes decondense and formation of new nucleus membrane take place is called the telophase.

6.Cytokinesis: The separation of daughter cells incorporated with cytoplasm and organelles is called cytokinesis.

Answer:

25116 J

Explanation:

Q  =  m  ×  c  × ΔT

c = 4.186 J/g°C

M=200 g

So,

Q = 200  ×  4.186 × (40-10)

=200 ×  4.186 × 30

=25116 J

Enamel is indeed the hardest substance in the human body. It is present in teeth of humans. It covers every tooth and provides the hard layer.

Tooth Enamel is hard glossy substance that is comprised of calcium and phosphate mineral crystals which in return makes our teeth more stronger. Teeth enamel care is extremely important to maintain the oral health of teeth.

Tooth Enamel is one of the major tissue that make up tooth in humans. It covers the top layer of the teeth known as Crown. Calcium hardens the tooth enamel. Enamel contains 96% of the minerals. The color of Enamel varies from light yellow to white.

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Answer:

I can't see the graph but I believe that the answer is H

Answer:

Hydroxyl: -OH, alcohol

Carboxyl: -COOH, carboxylic acid

Amino: -NH₂, amine

Phosphate: -PO₄, phosphate group*

Carbonyl: -CO, aldehyde or ketone

Sulfhydryl: -SH, thiol

*I have no idea what class of compound this would be. they are normally just referred to as phosphate groups.

**note that all of these groups are attached to a carbon

Answer:

This isn't a hundred points

Explanation:

The nerves and blood vessels that service a muscle fiber are located in the connective tissues of its d. endomysium.

The endomysium is a layer of connective tissue that surrounds individual muscle fibers. It consists of delicate connective tissue fibers and contains capillaries, nerves, and lymphatic vessels that provide the necessary oxygen, nutrients, and innervation to the muscle fiber. The endomysium serves as a protective and supportive layer for the muscle fibers, helping to maintain their structural integrity.

While the other options mentioned (myofibrils, sarcomere, perimysium, and sarcolemma) are also components of the muscle structure, they do not contain the nerves and blood vessels that service the muscle fiber.

Myofibrils are contractile structures within the muscle fiber, sarcomere is the basic functional unit of the muscle, perimysium is a connective tissue layer surrounding bundles of muscle fibers, and sarcolemma is the plasma membrane surrounding the muscle fiber. However, it is the endomysium that houses the vital vascular and nervous supply for the muscle fiber.

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The allele that prevents the disease in the parents is a WILD TYPE allele and the one that causes the disease is a MUTANT allele. An allele is a gene variant.

An allele is a gene variant, in diploid organisms (like humans) two alleles are inherited for each gene locus.

A wild-type allele is an allele that produces a normal phenotype.

Conversely, a mutant allele is associated with a defective phenotype in disease and/or genetic conditions.

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Here is the code to write a method teach as part of the class Dog. The method teach should add a passed string parameter to tricks and print a message that the dog that knows the trick:class Dog:
   tricks = []
   
   def __init__(self, name):
       self.name = name
   
   def teach(self, trick):
       self.tricks.append(trick)
       print(self.name + " knows " + trick)The above code consists of a class named Dog which has a constructor __init__ and a method teach which is used to add the tricks passed as a string parameter to tricks and then print a message that the dog knows the trick. In the teach method, the string parameter trick is added to the list tricks using the append() function and then the name of the dog along with the trick is printed using the print() function. Here, in the example, we have added the frisbee trick to the dog sugar using the teach method as shown below: sugar = Dog("Sugar")
sugar.teach("frisbee")The above command output will be "Sugar knows frisbee" which indicates that the dog sugar knows how to perform the frisbee trick. Therefore, the code will execute successfully and print the output.

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The ethical dilemma in this scenario involves whether to accept a personal gift from a patient as a medical office assistant. The assistant must consider the potential implications on their professional relationship, the perceptions of others, and the impact on their ethical obligations.

Ethical Problem: The ethical problem in this scenario is whether to accept a personal gift from the patient or refuse it due to potential ethical implications.

Facts: The patient, Lin, has offered a personal gift to the medical office assistant.

Lin has been a long-term patient who was diagnosed with cancer, and the assistant has played a significant role in helping her understand her diagnosis and treatment.

Previous gifts received by the assistant were shared with the entire staff, but this particular gift is different as it is meant solely for the assistant.

Affected Parties: The affected parties include the medical office assistant, Lin (the patient), and potentially other patients who may observe or hear about the gift.

Options and Consequences:

1. Accept the gift: This may be seen as a genuine act of gratitude from the patient, strengthening the bond between them.

However, accepting the gift could raise concerns about favoritism or bias, potentially compromising the assistant's professional judgment and integrity.

2. Refuse the gift: By declining the gift, the assistant ensures impartiality and avoids the perception of being influenced by gifts.

This may preserve the professional relationship with the patient and maintain trust from other patients and colleagues.

However, it may unintentionally hurt Lin's feelings or be seen as rejecting her gratitude.

Decision: In this case, considering the long-term relationship and the patient's circumstances, the assistant could politely and gratefully decline the personal gift, emphasizing that it is their professional duty to provide care and support.

By doing so, they uphold professional ethics, maintain impartiality, and avoid potential conflicts of interest, while still acknowledging Lin's appreciation.

It is essential to communicate the decision with sensitivity and compassion, ensuring that Lin understands it is not a reflection of their relationship but rather a commitment to professional ethics.

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