A mutation that changes a codon sequence, and subsequently changes the amino acid that should have been placed at that point in the polypeptide chain, is a:____.

Answer:

22+xx

Explanation:

xxxxxxxxxxxxxxxxx

False. change in human genetics over the last 50 years is not the main reason for the obesity epidemic.Rarely does obesity run in families with a clear pattern of inheritance brought about by alterations in a single gene.

Extreme obesity is characterised as a BMI >= 40. Overweight is defined as 25–= BMI 30. Since the 1970s, obesity has become more common among adults in the U.S., affecting both sexes and people of various ages, social statuses, and ethnic backgrounds. Over the past 30 years, a number of nations have seen the prevalence of obesity among their citizens double or even quadruple. This increase has been attributed to factors such as economic development, industrialization, mechanised transportation, urbanisation, an increase in sedentary behaviour, and a nutritional shift toward processed foods and high-calorie diets.

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Answer:

Mating

Explanation:

This is most-likely a mating ritual to get the female to choose them to reproduce

Answer:

Explanation:

the birds method of _mating_

Answer:

C

Explanation:

More diverse than animals and plants

Answer:

ecosystem :)

Answer:

The chemical reaction is sped up.

The activation energy is lowered.

Explanation:

When enzymes are added to a chemical reaction, they lower the activation energy needed in the reaction.

In return, that also speeds up the chemical reaction, since less energy is needed to start it.

Enzymes do not stop chemical reactions, and enzymes can also be reused, so they are not used up.

So, the first and third statements are correct.

Answer:

The other person is right so you can give him brainly.

Explanation:

Answer: Heredity

Explanation: Structure of DNA Genetic information is passed from one generation to the next. This is called heredity and why we resemble our parents. The genetic information itself is contained in a complex molecule called DNA.

Hope this helped! :)

Answer:

hope it helps..

Explanation:

In the future, hydrogen will join electricity as an important energy carrier, since it can be made safely from renewable energy sources and is virtually non-polluting. It will also be used as a fuel for 'zero-emissions' vehicles, to heat homes and offices, to produce electricity, and to fuel aircraft.

Answer The Golgi Body

Explanation:

The answer is the Golgi Apparatus because it gets nutrients from the Endoplasmic Reticulum, their packages modify and then send the proteins to the lysosomes. It is not Mitocondria because that organelle only creates glucose which the cell intakes.

Small population size is most likely to result in changes in allele frequencies in a population. So, the correct option is (B).

The relative frequency of an allele (gene variant) at a specific locus in a population, expressed as a fraction or percentage, is known as allele frequency or gene frequency. It is the proportion of all chromosomes in the population that carry that allele divided by the entire population or sample size. Microevolution is the change in allele frequencies that happens within a population over time.

Given the given facts:

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Full Question: Which set of conditions would most likely cause a change in gene frequency in a population that reproduces sexually A. random mating. B. Small population size. C. No migration into or out of a population. D. Absence of natural selection

Plants are autotrophs because they can prepare their own food.  Photosynthesis takes place in leaves which contain stomata that allow for the exchange of gases.

Photosynthesis may be defined as the process that converts carbon dioxide into glucose in the presence of sunlight.

Leaves of plants possess stomata through which the exchange of gases and loss of water takes place. These pores in the leaves of plants also help in the process of transpiration.

Therefore, it is well described above.

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Answer:

i hope this one helps

Explanation:

In a population of 2,500 with a frequency of 0.1 for the recessive allele causing cystic fibrosis, we can calculate the number of people who will have cystic fibrosis using the principles of population genetics.

To determine the number of people who will have cystic fibrosis in the population, we need to calculate the number of individuals who carry two copies of the recessive allele. Since cystic fibrosis is caused by a recessive allele, individuals need to inherit two copies of the allele to express the condition. The frequency of the recessive allele is given as 0.1, which means that 10% of the population carries one copy of the allele. To find the number of individuals with two copies, we multiply the frequency by the total population size: 0.1 * 2,500 = 250.

Therefore, in a population of 2,500 individuals, approximately 250 people will have cystic fibrosis, assuming that the population follows Hardy-Weinberg equilibrium and that there are no other factors affecting allele frequencies or disease expression.

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The citric acid cycle and the electron transport chain are connected biochemical reactions. the oxidation of succinate to fumarate is tied to the reduction of Complex 2 and the reduction of FAD to FADH2 in the electron transport chain. Hence, 1 and 3 are the right responses.

Complex II in this instance uses the enzyme succinate dehydrogenase to oxidize succinate to fumarate. Therefore, this complex is also known as respiratory complex II, succinate dehydrogenase complex, or succinate coenzyme Q complex.

Along with the oxidation of succinate to fumarate, ubiquinone is reduced to ubiquinol during this phase. The TCA cycle's sixth step is this. Succinate is oxidized, and FADH2 is created. It is made when FAD is converted into FADH2.

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Question correction:

The Citric Acid Cycle and the Electron Transport Chain are connected biochemical reactions. The oxidation of succinate to fumarate is tied to in the electron transport chain. Which two answer choices correctly complete the sentence?

Answer:

B

Explanation:

You can't tell anybody to grow because you are amazing

whatever size or way you are so B

Answer:

to move water relative to the cell in a regular movement of the cilia

During the Cretaceous period, high temperatures and abundant vegetation resulted in increased \(CO_2\) levels, leading to the accumulation of organic matter and the formation of good source rocks for oil and gas.

During the Cretaceous period, spanning from approximately 145 to 66 million years ago, the global carbon-climate cycle played a crucial role in the development of favorable conditions for the formation of good source rocks. The period was characterized by high global temperatures and abundant vegetation, resulting in increased carbon dioxide \((CO_2)\) levels in the atmosphere.

The elevated \(CO_2\) levels fueled vigorous photosynthesis, leading to the accumulation of organic matter in marine and terrestrial ecosystems. As this organic matter was buried and subjected to heat and pressure over millions of years, it transformed into oil and gas, creating potential source rocks. The warm climate and prolific vegetation during the Cretaceous, along with the subsequent geological processes, contributed to the formation of the rich hydrocarbon reserves that are vital to our energy resources today.

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The correct question is:

Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)

The first step in the replication of DNA is catalyzed by the enzyme DNA helicase.

DNA replication, as used in molecular biology, is the process by which one DNA molecule is biologically converted into two identical copies of DNA. The most crucial component of biological inheritance is DNA replication, which happens in all living things. In addition to ensuring that each of the new cells receives a copy of the DNA, this is crucial for cell division during tissue growth and repair. Replication of DNA is crucial because the cell's unique ability to divide makes it.

Enzymes called helicases can modify or bind to complexes of nucleic acids or proteins that include nucleic acids. Helicases are present in both DNA and RNA. DNA helicases are necessary for DNA replication because they divide double-stranded DNA into single strands, allowing each strand to be replicated separately. At locations known as origins, where synthesis will begin, DNA helicases unwind DNA during DNA replication. The replication fork, so named because the two strands of DNA seem forked as they are unzipped apart, is a structure that is formed as the DNA is further unwound by the DNA helicase. In double-stranded DNA, energy is required to dissociate the hydrogen bonds that bind the base pairs together.

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A continual influx of new energy is option B: as energy is recycled, a small amount is lost as heat. This means that the energy available to organisms within an ecosystem decreases over time.

To maintain the energy needed for the survival and growth of organisms within an ecosystem, new energy must be constantly added through processes such as photosynthesis, which converts sunlight into usable energy. This energy then flows through the ecosystem and is eventually lost as heat, creating the need for a continual influx of new energy. This cycle is essential for the balance and sustainability of ecosystems.
                                             Ecosystems need a continual influx of new energy is option C: energy flows through an ecosystem and cannot be recycled. In an ecosystem, energy is constantly flowing from one organism to another through food chains and food webs. Energy is not recycled in ecosystems like nutrients are. Instead, energy is lost as heat at each trophic level, requiring a continuous input of new energy, primarily through the process of photosynthesis by primary producers.

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Loading up on sugar is not advisable before a speech because it gives you quick energy.

Sugar is a crystalline carbohydrate that is sweet to the taste. Sugars that are commonly used in foods include glucose, fructose, and sucrose. Sugars can be found naturally in fruits and vegetables, as well as honey, while others, such as high fructose corn syrup, are frequently added to prepared foods. Although consuming sugar can provide a quick burst of energy, it is not recommended to load up on sugar before giving a speech.

When you consume a lot of sugar, your body responds by releasing insulin to break it down. The insulin then causes a drop in blood sugar levels, resulting in a drop in energy. This can cause tiredness, confusion, and difficulty concentrating, which are all the opposite of what you want when giving a speech.

Instead, a balanced meal consisting of complex carbohydrates, protein, and healthy fats is a better option for providing sustained energy and focus during a speech.

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Answer:2nd Answer Choice: It creates genetic variation within the organisms

Explanation:

I am in ap biology so I know this.

Determines the shape of the virion  was the  function(s) of the viral capsid. Option (c).

The primary purpose of viral capsids, which are nanometer-sized containers with complicated mechanical characteristics, is to encapsidate the viral genome in one host, transfer it, and then release it into another host cell.

A helical virus's viral nucleic acid coils into a helical shape, and the capsid proteins spiral around the nucleic acid's interior or exterior to create a long tube- or rod-like structure . The nucleocapsid is made up of the nucleic acid and the capsid.

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Answer:

Es el agrandamiento de órganos, piel u otras partes del cuerpo, causado por la acumulación de líquidos en los tejidos. La presencia de líquido extra puede llevar a un aumento rápido de peso durante un período corto (de días a semanas).

The statement 'ETS accelerates the buildup of plaque in the heart and blood vessels' is TRUE about environmental tobacco smoke (ETS). it is harmful to health.

Environmental tobacco smoke (ETS) refers to the smoke present in an environment due to cigarettes, which may be harmful to health.

It has been shown that environmental tobacco smoke (ETS) contains carcinogenic substances.

Moreover, nocive substances in environmental tobacco smoke (ETS) can also enter the body through respiration and travels in the circulatory system.

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Answer:

Tissue: A group of similar cells that perform a specific function

Organ: Made up of different tissues.

Organ System: Performs more complex functions than tissues alone.

Explanation:

A cell organelle that occurs in the centrosome and helps organize a mitotic spindle for chromosome movement during animal cell division is called a centriole.

Centrioles are cylindrical structures composed of microtubules and are typically found in pairs within the centrosome. During cell division, the centrioles duplicate, and each pair moves to opposite poles of the cell, where they play a critical role in forming the mitotic spindle. The mitotic spindle is responsible for separating the duplicated chromosomes and ensuring their proper distribution to the daughter cells during cell division.

The centrioles serve as templates for the assembly of microtubules, which make up the mitotic spindle. They function as organizing centers, known as microtubule organizing centers (MTOCs), from which microtubules extend to interact with the chromosomes.

The microtubules emanating from the centrioles attach to the chromosomes via protein structures called kinetochores, which allow for controlled and accurate movement of the chromosomes during cell division. The coordinated actions of the centrioles and microtubules ensure the proper alignment, segregation, and distribution of chromosomes to daughter cells.

It's important to note that centrioles are primarily found in animal cells, while plant cells often lack centrioles or have modified versions called basal bodies, which are involved in the organization of cilia and flagella.

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Answer:

Protein synthesis errors can also produce polypeptides that show the benefit of toxic activity. In rare cases, the defect may provide a different or pathological function to a normally wrapped protein. Often, errors disrupt the fold, and a well-threatened molecule can be toxic. Perhaps the protein will not be made or made improperly. When mutations occur in gametes, the DNA of the offspring will be positively, negatively, or neutral.

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Answer:

Organic matter : biofuels

Explanation:

Biomass is derived from Organic matter in the soil and is used to produce Biofuels. Hope this helps

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The construction of a lake near Galetown has resulted in intensified rainstorms in the area.

In recent years, Galetown underwent a significant development project that involved the construction of a large lake in close proximity to the town. While the lake was initially intended to serve as a recreational attraction and a potential source of water supply, its unintended consequence has been the exacerbation of rainstorms in the region.

The presence of the lake has disrupted the local weather patterns and created a microclimate effect. As warm air rises from the lake's surface, it interacts with cooler air masses in the atmosphere, leading to the formation of convective currents. These convective currents, in turn, generate thunderstorms and heavy rainfall.

The lake acts as a heat source, evaporating moisture into the air and increasing the humidity levels. This enhanced humidity provides favorable conditions for the development of rain-producing clouds. Additionally, the lake's large surface area allows for increased evaporation, further contributing to the moisture content in the atmosphere.

Furthermore, the lake alters the wind patterns in the region. The presence of a significant water body disrupts the natural airflow, causing air to converge over Galetown. This convergence of air masses leads to the uplift of moist air, creating a conducive environment for intense rainstorms.

In conclusion, the construction of the lake near Galetown has inadvertently resulted in more severe rainstorms in the area. The lake's impact on local weather patterns, through the generation of convective currents, increased humidity, and alteration of wind patterns, has contributed to the intensified rainfall experienced by Galetown and its surroundings.

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