the cellular machinery that replicates dna inserts an incorrect base____
Answers
The cellular machinery that replicates DNA inserts an incorrect base during a process known as DNA replication.
DNA replication is carried out by a group of specialized proteins and enzymes, including DNA polymerase, which is responsible for adding nucleotides to the growing DNA strand. During this process, DNA polymerase matches the base on the template strand with a complementary base (adenine with thymine and guanine with cytosine) to form the new strand.
However, DNA polymerase can occasionally make mistakes and insert an incorrect base, leading to a mismatch between the two strands. This mistake can happen due to several factors, such as the presence of damaged bases, errors in the DNA polymerase's proofreading ability, or exposure to certain chemicals or radiation.
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Related Questions
Ecosystems Unit Test 8 of 8 Items Item 8 Discuss an ecosystem in which there is a producer, a consumer, a secondary consumer, and a decomposer. Name the ecosystem and specific organisms for a producer, consumer, secondary consumer, and decomposer
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Answer:
The ecosystem, in this case, is a forest. The producers are plants. The deer, who eats the plants, is the consumer. The wolf, who eats the deer, is the secondary consumer, and earthworms are the decomposers.
Explanation:
An ecosystem is a group of beings that are in a certain area where they interact with each other and with their surroundings. In this case, we describe a trophic level with beings that are in the forest.
Producers are beings that produce their food, like plants.Consumers or primary consumers are animals that eat producers. They are herbivores.Secondary consumers eat primary consumers. They can be omnivores, or like in this case, carnivores.Decomposers are bacterias, mushrooms, or earthworms. They act on all levels breaking down the rest of the animals and plants, obtaining nutrients to nourish the soil, and start the cycle again.One of the first explanations of evolution was put forth by a French biologist, Jean-Baptiste
Lamarck. He theorized that animals, in responding to different environments, adopted new
habits. Their new habits caused them to use some organs more and some organs less, which
resulted in the strengthening of the former and the weakening of the latter. New characters
thus acquired by organisms over the course of their lives were passed on to the next
generation. His theory proposed this process of use and disuse, repeated over many
generations, was how species evolved.
He was wrong. Why?
Answers
Answer:
Traits acquired during an organism's lifetime cannot be passed
Explanation:
The law of use and disuse of organs as postulated by Jean Lamarck was wrong due to the fact that environmentally acquired characters cannot be passed to offspring.
Changes to organisms that are not the level of the gene cannot be passed to the offspring. For example, a wrestler that got big muscles due to constant work out cannot pass big muscles to his offspring. The offspring will need to work out in order to have big muscles. This is because big muscles in the wrestler is environmentally acquired.
Only changes that happen to the genome of an organism (mutation) can be passed to offspring.
A model of Earth’s water budget shows that the precipitation on oceans is 420,000 km3 and the precipitation on land is 130,000 km3. If the evaporation from land is 90,000 km3, how much is the evaporation from oceans? 90,000 km3 130,000 km3 460,000 km3 550,000 km3
Answers
Answer:
its C. 460,000 km3
Explanation:
I'm just build different
The amount of the evaporation from oceans is 460,000 km3
Using this formula
Evaporation from oceans=Precipitation on oceans+Precipitation on land-Evaporation from land
Let plug in the formula
Evaporation from oceans=420,000 km3 + 130,000 km3 - 90,000 km3
Evaporation from oceans=460,000 km3
Inconclusion The amount of the evaporation from oceans is 460,000 km3.
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Hi, I want to know what tract means in biology. Pls, elaborate on that.
Answers
Answer:
Tract is the system of body parts , they perform functions together .
Explanation:
A Scientific tract , designed for instruction and entertainment, and adapted to schools, lyceums and families.
WILLL GIVE BRANLIEST TO CORRECT ANSWER
Answers
Describe one physical property and one chemical property of sodium that ywe observed
Answers
Answer:
It's a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF). From the commercial point of view, sodium is the most important of all the alkaline metals. Sodium reacts quickly with water, and also with snow and ice, to produce sodium hydroxide and hydrogen.
Explanation:
A rock sample has 25% of its original radioactive element and the half-life of the
element is 1 million years. How old is the sample?
A.)2 Million Years
B.)0 1 Million Years
C.)500.000
D.)50,000
Answers
Answer:
c 500000
Explanation:
the half was 1000000 so it's 2000000 and 25% of that is 500000
In Black Angus cattle, the color black is what type of genetic trait?
recessive
incomplete
dominan
genotype
Answers
Answer:
dominant
Explanation:
The "gene" of an organism consists of two alleles. One allele comes from each parent. A genetic trait is said to be "dominant" even if there's only one copy of dominant allele present; however, a genetic trait is said to be "recessive" if there are two recessive alleles present.
In Black Angus cattle, the dominant color is "black." They are even named after their color. The recessive trait is "red." In order for a Black Angus cattle to be red, it needs to have two alleles for the recessive trait (red). However, it is easy for the cattle to be black as long as it has one allele for the dominant trait.
Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as:
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Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.
Homeostasis is the body's ability to maintain a stable internal environment despite external changes.
In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.
These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.
For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.
Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.
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What are immunoglobulins?
Answers
Answer:
Immunoglobulin, is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
an important event that occurs during prophase i of meiosis that results in an exchange of genetic material between homologous chromosomes, is called
Answers
The event that occurs during prophase I of meiosis, resulting in an exchange of genetic material between homologous chromosomes, is called crossing over or genetic recombination.
During prophase I of meiosis, the homologous chromosomes pair up and form a tetrad. Within this tetrad, nonsister chromatids from the homologous chromosomes come into close proximity. At certain points along these nonsister chromatids, the genetic material can be exchanged through a process called crossing over or genetic recombination.
This exchange of genetic material between homologous chromosomes leads to the creation of new combinations of alleles and increases genetic variation. Crossing over is an important mechanism in meiosis that contributes to the diversity of offspring and ensures the shuffling and mixing of genetic information from the parents.
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The diagram shows the structure of starch, a complex carbohydrate
Answers
Answer:
Glucose is monomer of starch
Explanation:
Starch is polysacheride and glucous is monosaccharide glucose molecules link with glycosidic bond to form starch so c is your answer
state two examples of homozygous pairs
Answers
An organism is homozygous (homo meaning "same") for a gene when it possesses two copies of the same allele.
An organism may be homozygous recessive (RR) or homozygous dominant (TT) (tt). Heterozygous refers to an organism that possesses two distinct alleles (Tt) for a certain gene (hetero means different).
What are some examples of homozygous and heterozygous?Homozygous individuals are those who have two copies of the same allele (RR or rr). While heterozygous refers to a particular organism with various alleles (Rr). Assume, for instance, that the hair colour gene has two alleles, one of which codes for brown (R) and the other for black (r).
What does a heterozygous allele pair look like?You have a heterozygous genotype for that gene if the two versions differ from one another. For instance, having one gene for red hair and one allele for brown hair might indicate that you are heterozygous for hair colour are expressed depends on how the two alleles are related.
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How do farming
methods cause water pollution?
Answers
Answer:
Agricultural waste like pesticides, fertilizers, and insecticides
Explanation:
1. Fertilizers residues stimulate the growth of Aquatic plants
2. Overuse of fertilizer which drain off inti the water bodies causes eutrophication (i.e the process by which nitrates and phosphate are washed into the water bodies resulting to algae boom)
3. agricultural waste may accumulate to a toxic level thereby poisonous to Aquatic organisms
What observation can be made on a petri dish determine that the chosen bacteria has been infected by a virus that replicates using the lytic cycle?
Formation of plaques Bacterial cells may exhibit new properties Difference in color of the bacteria Overgrowth of bacteria
Answers
When a virus enters a bacterial cell, it replicates utilizing the lysogenic and spreads throughout the bacterium. On Petri plates containing nutritional medium, it creates the plaque, which is a distinct circular zone.
What are bacterial cells, and what do they do?Water, catalysts, vitamins, waste products, and gases make up its gel-like matrix, which also houses ribosomes, chromosomes, and plasmids, among other cell components.
What kinds of cells make up a bacterial cell?In that they have nucleus, ribosomes, as well as a plasma membrane, bacteria resemble eukaryotic cells. A bacterial cell may be distinguished from a eukaryotic cell by its circular nucleoid DNA, absence of membrane-bound organelles, peptidoglycan cell wall, and flagella.
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Mr. Karpov has an aquarium that can hold 40 quarts of water. He sells it and buys two new aquariums that can each hold gallons of water. How many more quarts of water do the two new aquariums hold than the old aquarium?
Answers
The amount of quarts of water the two new aquariums hold more than the old aquarium is 208 quartz
How to calculate quantity?Since 1 quart is equal to 0.25 gallons, the old aquarium can hold 40/0.25 = 160 gallons of water.
Each of the new aquariums can hold gallons of water, so together they can hold a total of 2 × = 72 gallons of water.
To find how many more quarts of water the two new aquariums hold than the old aquarium, we need to find the difference in the volume of water they can hold in quarts:
72/0.25 - 40 = 288 - 40 = 248 quarts
Therefore, the two new aquariums can hold 248 - 40 = 208 more quarts of water than the old aquarium.
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As atp begins to build up in a cell, metabolism slows down. How does this happen?.
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Answer:
ATP acts as an allosteric inhibitor to many of the enzymes involved in metabolism, thus slowing their function.
Explanation:
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Answers
Answer:OWA OWA
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Answer:
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After infecting living cells, viruses can do all of the following except that they cannot
a. evolve
b. reproduce
c. respond to the environment
d. regulate gene expression
Answers
Answer:
c respond to the environment
the process in which the body makes new proteins and breaks down existing proteins is known as
Answers
The process in which the body makes new proteins and breaks down existing proteins is known as protein turnover.
This is a continuous process that occurs in all cells in the body, and is necessary for the maintenance of healthy tissues and organs. Protein turnover involves two main processes: protein synthesis, which is the creation of new proteins from amino acids, and protein degradation, which is the breakdown of existing proteins into their component amino acids. Both of these processes are regulated by a variety of factors, including hormones, nutrients, and environmental cues. Protein turnover is essential for a variety of physiological functions, including muscle growth and repair, immune system function, and cellular metabolism. Answering more than 100 words, it is clear that protein turnover is a vital process in the human body and plays a crucial role in maintaining overall health and well-being.
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nondisjunction occurs when group of answer choices members of a chromosome pair fail to separate. an entire pair of chromosomes is lost during meiosis i. a portion of a chromosome breaks off and is lost. chromosomes replicate too many times. two chromosomes fuse into one.
Answers
Nondisjunction occurs when members of a chromosome pair fail to separate.
In the field of biology, nondisjunction can be described as a disorder in which the homologous chromosomes do not separate from each other during the cell division process.
As a result of nondisjunction, one of the daughter cells will have both pairs of chromosomes. This means that it will have an extra chromosome. On the other hand, the other daughter cell will not have any of the homologous chromosomes hence decreasing the number of entire chromosomes in the cell.
The process of nondisjunction can lead to severe diseases and syndromes in the newborn child.
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What are five 5 reasons why premarital sex is strongly discouraged?.
Answers
Premarital sex is Selfish Premarital sex is not romantic, Out of Curiosity, No parental guidance, Canine Love.
Premarital sex is always about the individual, never about the other. If it were, we wouldn't be putting our future marriage, the other person's health, their ability to become pregnant, the spread of illness, their emotional welfare, and their spiritual wellbeing at danger. When pre-marital sex occurs, it is always about me and only me.Love can be summed up in the term "gift" since it is "choosing what is best for the other, notwithstanding the cost to myself." Being a selfless gift for others is how we are called to love them. Therefore, it is not love when we make decisions that are selfish and bad for the other. By definition, premarital sex is ALWAYS an unloving act.Young people frequently begin having premarital sex out of curiosity. Without considering the potential results, they just want to have fun and fall in love at the same time. The majority of teenagers are naturally interested, especially during the adolescent years.Premarital sex is always a possibility for teenagers who are not as closely watched by their parents. Teenagers would have plenty of time to experiment with and practice premarital sex if both parents were employed full-time and there was no one else at home. When they get into marriage phase they will be guided by parents.Teenagers in general have a tendency to think and mature quickly. Teenagers believe they have developed and met their true love throughout adolescence because it is the period between childhood and adulthood then marriage. the person they want to spend their entire lives with. However, the issue typically starts at this point because the majority of teenagers don't engage in safe sex and have a propensity to become pregnant at a young age.To know more about premarital sex check the below link:
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which of the following locomotion is associated with having longer arms than legs: group of answer choices quadrupedalism bipedalism brachiation vertical clinging and leaping\
Answers
The locomotion that is associated with having longer arms than legs is called brachiation.
Locomotion refers to the ability of an organism to move from one place to another. It is the movement of an animal or a human being from one location to another, whether it be for the purpose of finding food, avoiding danger, seeking shelter, or any other reason.
Brachiation is a form of arboreal locomotion in which primates swing from branch to branch using their arms, while their legs are relatively shorter and used for support. This form of locomotion is seen in some species of apes, such as gibbons and orangutans, and is characterized by rapid and agile movement through trees.
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ABNORMALITIES OF HEART VALVES CAN BE DETECTED MORE ACCURATELY BY AUSCULTATION THAN BY ELECTROCARDIOGRAPHY. WHY IS THIS SO?
Answers
Heart valves is responsible for causing extra heart sounds that can be heard with a stethoscope. ECG is responsible for measuring electrical activity.
Electrocardiogram (ECG) is recorded touching the body surface and registers the differences in electrical potential generated by the heart. These signals are recorded on basis of action potentials generated by millions of cardiac cells and their activation sequence .
An electrocardiogram (ECG) is normal test that can be used to check rhythm of heart's and other electrical signals . in this process Sensors gets attached to the skin for detection of the electrical signals each time your heart beats.
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List 3 examples of nutritional and hormonal factors that bone development depends on
Answers
Answer:
Explanation:
Answer:
vitimins D,C, and b
Explanation:
15
Approximately how many degrees does Earth rotate on its axis over this five-hour period?
15°
45
75"
90°
A
Eliminator
8
Line Reader
Reference
CA
Period
Answers
Over a five-hour period, Earth rotates approximately 75 degrees on its axis. This calculation is based on the proportion that relates the time taken for Earth's complete rotation (24 hours) to the corresponding degrees of rotation (360 degrees).
The rotation of the Earth on its axis takes approximately 24 hours to complete one full rotation, which equals 360 degrees. To calculate how many degrees Earth rotates over a specific time period, we can use a simple proportion.
In this case, we have a time period of 5 hours. We can set up the proportion:
5 hours is to x degrees as 24 hours is to 360 degrees.
Using cross-multiplication, we can solve for x:
5 hours * 360 degrees = 24 hours * x degrees
1800 degrees = 24x
Dividing both sides by 24:
1800 degrees / 24 = x degrees
75 degrees = x
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Donc
47. What are 2 ways that plants have adapted to life in this region?
Answers
A simplified model of a bacterial cell is shown here. Upon analysis of the internal structures of this cell, predict which organelle would be found. Choose all that apply
Answers
Answer: DNA and ribosomes
Explanation:
DNA is the genetic material of the cell and it is found In all living cells. Ribosomes are small, non-membrane bound organelle that is found in ALL cells and cell types.
What is the function of the nervous system? What is the
basic unit of the nervous system?
Answers
Answer:
It generates sensory throughout the body
Explanation:
The nervous system is involved in receiving information about the environment around us. Which then generate motor responses. The nervous system can be divided into regions that are responsible for sensation and for the response/Motor response
Answer:
The function of the nervous system is to send electrical impulses through the body that stimulate sensory and motor functions. The basic unit of the nervous system is the neuron.
Explanation:
How long does a mayfly live as an adult? *
Answers
Answer:
Adults will live only a day or so, but the aquatic larvae lives for about a year
Explanation:
Answer:
~ 1 day but larvae can live longer
Explanation: