The central dogma of molecular biology is an explanation of the flow of genetic information within a biological system. It is a framework for understanding the transfer of genetic information between sequential information-carrying biopolymers. It traces the one-way flow from the nucleus out to the cell proper and the ribosome.

Which model BEST represents central dogma?
A) A
B) B
C) C
D) D

Final answer:

Changing a single nucleotide in a codon can lead to silent, missense, or nonsense mutations, affecting the protein differently. Frameshift mutations also alter protein function, while insertions or deletions in multiples of three may not significantly impact the protein's functionality.

Explanation:

If you changed one nucleotide in a codon, it could result in several types of mutations with varying consequences for the protein produced. A nucleotide change could cause a silent mutation, where the resulting mRNA codon still codes for the same amino acid, having no effect on the protein. If the nucleotide change leads to a different amino acid being incorporated, this is known as a missense mutation, which can be benign, damaging, or lethal to the protein's function depending on the properties of the amino acids involved. A change to a stop codon, referred to as a nonsense mutation, results in premature termination of protein synthesis, typically yielding a nonfunctional protein.

The temporomandibular joint is the articulation between the temporal bone of the skull and the condyle of the mandible.

The temporomandibular joint is the articulation between the temporal bone of the skull and the condyle of the mandible. It is part of the joint that allows for the opening and closing of the mouth. This joint involves the articulation between the mandibular fossa and articular tubercle of the temporal bone, with the condyle of the mandible.

https://brainly.com/question/32631456

#SPJ11

The nervous system, specifically through cardiovascular centers in the brain and the autonomic nervous system, regulates the circulatory system. It controls functions like heart rate and blood pressure, also directing blood based on the body's needs ensuring optimal resource allocation.

The nervous system and circulatory system work together to maintain body homeostasis. The nervous system regulates the circulatory system through cardiovascular centers in the brain. It controls functions like heart rate and blood pressure along with directing blood flow to different organs based on the body's needs.

Similarly, the autonomic nervous system, which is a part of the nervous system, contributes to this operation through its two components: sympathetic and parasympathetic divisions. Sympathetic division elevates heart rate while parasympathetic slows it down. This coordinated effort ensures efficient resource allocation, regulating blood flow based on the demands of specific tissues or organs at a given time, such as during exercise or after a meal.

https://brainly.com/question/1166711

#SPJ12

Answer: Herbivores eat more often and carnivores eat less often.

Explanation:

The different adaptations for obtaining food in case of herbivores and carnivores is that herbivores eat more often as compared to carnivores.

The herbivores are the animals that feed on the plants and trees, fruits for their survival.

The carnivores are the animals that eat flesh of other animals and that is the reason carnivores eat less often because it takes time to digest the flesh.

In biological organization, cells are organized into tissues, which form organs, which in turn come together to form organ systems.

In the biological organization of life, cells are organized into tissues, which are organized into organs which, in turn, are organized into organ systems. Here's a simple rundown: A cell is the basic unit of life. Multiples of the same type of cells come together to form a tissue (like muscle tissue). Different tissues come together to form an organ (like the heart). Lastly, different organs work together to make up an organ system (like the circulatory system). This hierarchical organization ensure efficiency of life processes.

https://brainly.com/question/31561280

#SPJ6

Evolution through Natural Selection gives organisms the flexibility to survive in a changing world by enabling them to develop new adaptations and pass these on to their offspring.

The process that gives organisms the flexibility to survive in a changing world is Evolution through Natural Selection. It allows better-adapted organisms to survive and reproduce. A classic example is the beak size of Darwin's finches, which changed as the availability of different-sized seeds fluctuated. Evolution fuels life's diversity, producing new combinations of genes and enabling offspring to adapt and survive during environmental changes. Organisms also use feedback mechanisms to maintain internal environments and respond to external environmental changes, this regulation helps in adapting to new surroundings.

An organism may have evolved a new process to adapt, for example, a heat-resistant Archaea in boiling hotsprings. This change will then be passed to the offspring, further improving their survival chances in the environment.

https://brainly.com/question/13492988

#SPJ12

The study that is in relation with effect of health is known as Coniology.

It has been investigated in one of the studies that dust can bring huge negative impact on the health conditions. There is massive exposure in some countries of the dust as well as ultrafine and fine condition too. It uses the instrument of coniometer for counting the atmosphere components.  

The primary healthcare provider advised extracorporeal photopheresis to the client. Extracorporeal photopheresis or ECP is a procedure that has been approved by US FDA for the treatment of CTCL or advanced cutaneous T=cell lymphoma. The client was therefore diagnosed with CTCL. 

The nervous system is found in the brain, spinal cord, and the peripheral nervous system. The nervous system is made up of neurons- specialized cells of brain. The given statement is true.

The Nervous system includes the brain, spinal cord, peripheral nervous system, and a complex network of neurons. This system sends messages back and forth between the brain and the other body parts.

The brain is the main controlling center of all the body's functions in the body. The spinal cord is the part of brain which runs from the brain down through the back. The basic unit of the nervous system is Nerve cell or neuron.

The two major types of Nervous cells are neurons and glial cells. Nerve cells are the cells which are responsible for the communication through electrical signals. The Glial cells are responsible for supporting cells, maintaining the internal environment of the neurons.

Learn more about Nervous system here:

https://brainly.com/question/13487019

#SPJ5

The drying of the eye surfaces, including the conjunctiva, is consistent with dry eye syndrome, not conjunctivitis. Conjunctivitis, instead, involves inflammation and can cause redness, irritation, and vision issues.

The drying of the surfaces of the eye, including the conjunctiva, is not specifically named in your reference, but it typically relates to a condition called dry eye syndrome or keratoconjunctivitis sicca, which is not the same as conjunctivitis. Conjunctivitis is an inflammation of the conjunctiva, which is the mucous membrane covering the eye and the inside of the eyelid. This condition can cause redness, irritation, blurred vision, and sensitivity to light. In severe cases of conjunctivitis, progressive corneal scarring can occur, potentially leading to blindness. The conjunctiva is also a common entry site for pathogens causing infections. These infections can be in different forms, such as acute purulent conjunctivitis with pus formation, acute hemorrhagic conjunctivitis with bleeding, or other related infections such as blepharitis (inflammation of the eyelids) and keratitis (inflammation of the cornea).

Final answer:

Semi-synthetic penicillins like ampicillin and amoxicillin are widely used because they offer a broader spectrum of activity, better oral absorption, and resistance to enzymatic destruction, overcoming the limitations of penicillin G.

Explanation:

Semi-synthetic penicillins are preferred over natural penicillin G due to several key advantages. These modifications, such as the addition of an amino group ({-NH₂}) to create aminopenicillins like ampicillin and amoxicillin, enhance the spectrum of activity against more gram-negative pathogens, improve oral absorption due to increased acid stability, and provide protection against enzymatic destruction by penicillinases. Methicillin, as another example, was engineered for penicillinase resistance by modifying the R group, showcasing the importance of structural modifications in broadening the effectiveness of penicillin antibiotics.

These enhancements address the limitations faced by penicillin G, such as its ineffectiveness against a wider range of pathogens, poor and irregular absorption into the bloodstream, susceptibility to gastric acids, and vulnerability to enzymatic inactivation by bacterial penicillinases. Furthermore, semi-synthetic penicillin's improvements in dosing convenience and patient compliance have contributed to their widespread adoption in clinical use.

The true statement about a jet stream is that it is a river of strong wind, flowing from west to east, high in the troposphere, and significantly influencing weather and air pressure systems.

The statement about a jet stream that is true is: C. The stream is a river of strong wind. Jet streams are indeed fast-flowing, narrow air currents found in the atmospheres of some planets, including Earth. Specifically, the jet stream is a high-speed wind current located high in the troposphere and it predominantly flows from west to east.

Jet streams flow at altitudes near the tropopause and are the result of atmospheric heating and the Earth's rotation. They play a significant role in influencing weather patterns and air pressure systems. For instance, the polar jet stream affects weather by acting as a boundary between cold polar air and warmer tropical air, causing storm systems to form and travel along its path. Furthermore, wind direction associated with jet streams does not flow only from south to north or north to south, disproving options A and B.

Answer:

Hair Matrix

Explanation:

Final answer:

Mitosis consists of four phases: prophase, metaphase, anaphase, and telophase, followed by cytokinesis that physically divides the cell into two daughter cells.

Explanation:

Mitosis consists of four distinct phases: prophase, metaphase, anaphase, and telophase. During prophase, the nuclear envelope dissolves, chromatin condenses into visible chromosomes, and the spindle fibers begin to form. In metaphase, chromosomes line up at the cell's equatorial plane. Following this, anaphase occurs when sister chromatids are pulled apart to opposite poles of the cell. Lastly, telophase appears when the chromatids reach the poles, nuclear envelopes reform, and the chromosomes begin to decondense. Cytokinesis typically occurs in conjunction with telophase, resulting in the division of the cytoplasm and the formation of two separate daughter cells.

The Tasmanian wolf species is extinct because there is no individual of the species left alive anywhere on Earth. The term 'extinct' applies when species have completely died out.

If every Tasmanian wolf on Earth has died, this means that the Tasmanian wolf species is extinct. The term extinct is used when there is no reasonable doubt that the last individual of a species has died. This is different from species that are threatened or endangered, which are still living but at risk of extinction. In contrast, an extinction event is when no members of the species remain anywhere on Earth. It's important to note that hibernation refers to a state of inactivity and metabolic depression in animals during certain periods, which does not apply to the scenario provided.

After an animal is harvested, the product is often called meat, or in case of wild animals, 'bush meat'. Other byproducts of harvested animals include dairy, hides, and hooves, which are used for food and other industries. The rising human population and increased demand for protein foods raise the need for sustainable animal harvesting.

The product after an animal is harvested is generally referred to as meat. In certain cases, such as with wild animals, this is often referred to as bush meat, particularly in equatorial Africa and parts of Asia. This includes mammals and many primates living in the Congo basin. However, hunting and the commercialization of bush meat has increased harvest rates, threatening a number of species with extinction.

On a more sustainable and commercial level, harvested animals from both pastoralist and agricultural practices yield products like meat, dairy, and fish, as well as byproducts like hides, hooves, and sometimes even their dung for fuel. These products find their way into human consumption or are used in various industries.

The growing human population and the increasing demand for protein foods has further amplified the need for these animal products. However, the dependency on animal-based resources significantly impact the environment, prompting the need for more sustainable food production and distribution systems to meet future demands.

https://brainly.com/question/34763260

#SPJ11