During which phase of the cell is a cells DNA copied
Answers
Explanation:
Hi there!
Cell cycle has 2 phases (i.e M-phase and Inter-phase). Interphase is considered to be the longest phase. Interphase also has G1-phase, S-phase and G2-phase. In cell cycle while moving from M-phase it has two option either to go in G1-phase or G0 phase. It it goes to G0-phase it doesn't go under cell division but if it goes to G1-phase it starts to prepare materials required to replicate or copy DNA. After preparing all the material it goes in S-phase and copies DNA. It doesn't go to G2-phase until it copies DNA perfectly. Then it goes to G2-phase. In this phase it prepares material for replication of other cell organelles.
Therefore, DNA is copied in S-phase.
Hope it helps!
Answer:
S phase (Synthesis phase)
Explanation:
DNA is copied during interphase (S phase) before mitosis and just before meiosis. Mitosis is usually defined as the usual method of cell division, characterized typically by the resolving of the chromatin of the the nucleus into a threadlike form, which condenses into chromosomes, each of which separates longitudinally into two parts, one part of each chromosome being retained in each of two new cells resulting from the original cell. Meiosis is usually defined as part of the process of gamete formation, consisting of chromosome conjugation and two cell divisions, in the course of which the diploid chromosome number become reduced to the haploid (A single set of chromosomes). In human, mitosis produces diploid daughter cells which have the same number of chromosomes as the parent cell. Meiosis produces gametes (sperm or egg) which are haploid, meaning these cells have half the number of chromosomes as body cells such as skin cells. DNA is copies using a process called semiconservative replication.
More information:
What is DNA replication? What is its importance?A double-stranded DNA molecule is duplicated during DNA replication (by a variety of proteins) to create an identical double-stranded DNA molecule (so whereas the cell started with one copy, it ended up with two identical copies). Cell division would not be possible without DNA replication, hence it is crucial. In other words, either one cell would receive all the DNA while the other received none, preventing true cell division, or each cell would receive just half the DNA it requires, preventing the daughter cells from surviving (also leading to death of both daughter cells). DNA replication allows cells to replicate their whole set of DNA so that when they divide, each new cell has its own complete set of DNA. In theory, this allows for endless cell division.
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Related Questions
Which of the following energy is converted into chemical energy by the chlorophylls?
Thermal energy
Light energy
Heat energy
Nuclear energy
Answers
Answer:
light energy
Explanation:
Plants take in sunlight given off by the sun to make food during photosynthesis
Answer: Light Energy
Explanation: Chlorophyll absorbs light energy for photosynthesis
Question 10 of 10
If research is restricted, then the new discoveries made are limited. Which
action is most likely to decrease the number of discoveries scientists can
make?
OA. Ignoring public opinion
OB. Increasing private funding of research
OC. Eliminating government funding of research
OD. Removing government regulations
SUBMIT
Answers
Answer:
C. Eliminating government funding of research.
Explanation:
Government funding is the backbone for new research and discoveries in any country. Without government funding, the number of discoveries and technology will decline drastically because research requires lots of money which every private organization may not be able to provide.
Which is not a symptom of cystic fibrosis
A lack of ability to strengthen muscles
B trouble digesting food
C thick layer of mucus that can block airways
Answers
Answer:
Its A
Explanation:
Lack of ability to strengthen muscles
Please use the graph to the
left to help you answer this
question.
Which of the following
describes the DEPENDENT
variable?
A. the group in which the conditions
were not changed
B. the variable that is changed by the
person doing the experiment and
located on the x-axis
C. the variable that is observed or
measured by the experimenter and
located on the y-axis
9
D. the observation that the
experimenter made that started the
experiment
Answers
Answer:
C
Explanation:
The dependent variable is always the outcome, data, or what is being measured in an experiment.
What is the pressure in mm hg of a 0.025 mole sample of co2 at 350 k in a 2.00 l container? report your answer to the nearest mm hg
Answers
The pressure in mmHg of a 0.025 mole sample of CO2 at 350 k in a 2.00L container is 273.6 mmHg.
How to calculate pressure?The pressure of a gas can be calculated using the following expression:
PV = nRT
Where;
P = pressureV = volumen = number of molesR = gas law constantT = temperatureP × 2 = 0.025 × 0.0821 × 350
2P = 0.72
P = 0.72/2 = 0.36atm
Therefore, the pressure in mmHg of a 0.025 mole sample of CO2 at 350 k in a 2.00L container is 273.6 mmHg.
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PLEASE HELP IM STUCK
Answers
A variety of mice can have either gray fur (G) or white fur (g). Which words
describe the genotype of a mouse that inherits two of the alleles for gray fur?
O
A. Heterozygous gray
B. Heterozygous recessive
OC. Homozygous dominant
O D. Homozygous white
Answers
Answer:
[tex]\huge\boxed{\sf C. \ Homozygous\ dominant}[/tex]
Explanation:
Key:Since the dominant trait is denoted by a capital letter, gray is a dominant trait denoted by G.Recessive trait: White fur denoted by g.The mouse inherits two of the alleles for gray fur i.e. GG.
GG is gray (dominant trait) and GG is having the identical alleles so it will be called homozygous dominant.
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Which of the following correctly describes what happens to liquid and gas particles with
more thermal energy?
Select one:
O a. Liquid and gas particles with more thermal energy expand.
O b. Liquid and gas particles with more thermal energy condense.
O c.
Liquid and gas particles with more thermal energy rise.
O d. Liquid and gas particles with more thermal energy fall.
Answers
Answer:
i think a. is correct answer (:
hope its help for u
Can someone help me please
Answers
wise is the answer because the word bold also means wise
the answer is lazy because sage also means lazy
Which animal had to eat the most frequently in order to maintain its energy level
Answers
Answer:
A. Rattlesnake
B. Small fish
C. Hummingbird
D. Kangaroo rat
Explanation:
These animals live in a very harsh climatic region so the need fulfill their hunger properly according to the difficulties and problems.
An owl,
grasshopper, grass plant, and shrew are all part of the same food chain.
1. Describe what a food chain represents.
2. What would be the order of these organisms in a food chain?
3. Which organism is the producer? Explain.
4. Which organism is a tertiary consumer? Explain.
Number your answers in your response below.
Answers
The food chain represents the linear sequence of organisms through which nutrients and energy gets transferred from one trophic level of the organism to another.
What is the Trophic level?In a food chain, the trophic level may be characterized as the hierarchical series that is illustrated by organisms that are the exact number of steps extracted from the primary producers.
The order of the food chain is:
Grass plants → Grasshopper → Shrew → Owl.
The grass plant is a producer in this food chain, a grasshopper is a herbivore (primary consumer), the shrew is a carnivore (secondary consumer), and an owl is an omnivore (tertiary consumer).
Therefore, it is well described above.
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how migrarion neither increase or decrease the population
Answers
Answer:
as more people come to life in ur country others leave to stay in other countries
A. Point Source
B. Non-Point Source
This would be
considered what
type of water
pollution?
Answers
The given scenario would be considered "Point Source" water pollution.
Point source water pollution refers to the contamination of water bodies that can be traced back to a specific, identifiable source or location. This type of pollution occurs when pollutants are discharged directly into water bodies through pipes, drains, or other identifiable outlets.
These sources can include industrial facilities, wastewater treatment plants, oil spills, or sewage systems. Point source pollution is relatively easier to monitor and control because the source is identifiable, allowing for targeted measures to reduce or eliminate the pollution.
In contrast, non-point source pollution refers to pollution that is more diffuse and comes from multiple, widespread sources, such as agricultural runoff, urban runoff, or atmospheric deposition.
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Photosynthesis is a means of converting light energy to chemical energy. Explain what this statement means.
Answers
Answer:
photosynthesis, the process by which green plants and certain
other organisms transform light energy into chemical energy .
During photosynthesis in green plants, light energy is captured
and used to convert water, carbon dioxide, and minerals into
oxygen and energy-rich organic compounds.
also
During the process of photosynthesis, light penetrates the
cell and passes into the chloroplast. The light energy is
intercepted by chlorophyll molecules on the granal stacks.
Some of the light energy is converted to chemical energy.
During this process, a phosphate is added to a molecule to
cause the formation of ATP(Adenosine triphosphate)
Let's take a short look at photosynthesis before moving on to this topic.
It is an exergonic, light-dependent, biological, oxidoreductive, energy-yielding process. Where sugars or (CH2O)n are produced energetically by reducing CO2.
Although Co2 is essentially prevalent in nature, it does not break down into sugars since the reaction is thermodynamically possible.
Right after sunlight strikes the surface of the leaf, there are these little components known as reaction centers or energy harvesting cores, which are surrounded by antenna complexes. These antenna complexes are normally composed of chl a, chl b, xanthophyll, carotenoid, etc.
Here, the antenna complexes serve as filters, allowing just the necessary amount of flux to depart the outershelled electron of the chlorophyll molecule via energy activation states (of different kinds).
As the pigment system activates the chlorophyll molecule, the energy from the light is now transferred to chemo potential energy, which is subsequently employed in the process to oxidize the water molecule by the Kok clock mechanism.
Now this is an rather interesting cycle having multiple energy states, from Ground (SO) to maximum (S4) notice that the energy was first required to move on to next step in intermediates but as soon as it reached S4 or max state it oxidized water and this energy is actually enough to reduce Carbon di Oxide to sugar.
(Attachment #1)
If I'm not incorrect, the conversion works like this.
(Attachment #2)
As a result, it needs to be activated gradually in order to build up enough energy to pass the energy barrier.
NOTE:
As you can see, plants don't purposefully create oxygen, but why do they continue to do so? It does this because its primary goal is to turn sugar into oxygen, which it then converts into water that actually vaporizes while keeping the system cool.
High population densities in urban areas have advantages and disadvantages. List as many of each as you can and defend your conclusion. How could the disadvantages be eliminated or reduced? Use evidence to support your conclusion.
Answers
Answer:
A larger population density will help reduce the average costs of the transport network. Areas of high population density have not seen the food shortages because of improved yields from agriculture and the ability to trade food. Economic growth will be comparatively more than low density area.
for patients with prediabetes, what strategies does the diabetes prevention program show are effective in reducing the risk of progressing to type 2 diabetes?
Answers
Lifestyle changes such as losing weight and living an active life are effective in reducing the risk of progression of prediabetes to type 2 diabetes.
What is diabetes?Diabetes is a disease in which the body is unable to utilize glucose in the body efficiently.
Patients who are prediabetic are at risk of developing diabetes.
However, the diabetes prevention program shows that lifestyle changes such as losing weight and living an active life are effective in reducing the risk of progressing to type 2 diabetes.
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Answer:
it is D
Explanation:
got it right edge 2022
In pea plants, tallness (t) is dominant to shortness (t). what are the predicted percentages of the genotypes of the offspring if a homozygous short plant is crossed with a heterozygous tall plant?
Answers
If a homozygous short plant (tt) is crossed with a heterozygous tall plant (Tt), the percentage of tall offsprings is 50% and the percentage of short offspring is 50%.
A heterozygous tall pea plant will have the genotype "Tt" and a homozygous short pea plant will have the genotype "tt" because homozygous means that both alleles are identical.Since 'T' is dominant over 't', any plant with at least one "T" allele will be tall (the dominant trait), regardless of what the other allele is.The punett square of the following problem will have 2 squares with Tt genotype and 2 squares with tt genotype.Hence, the genotypic ratio of F1 generation will be
Tt : tt
1 : 1
And phenotypic ratio of F1 generation will be
Tall : Short
1 : 1
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Question 7: What conclusions can you make about how a change in the condition of the ocean affects the different species in coral reefs?
Answers
A DNA segment in a somatic cell undergoes the mutation shown;
ATTACC à ACTTACC
This represents a
______Mutation
Answers
Answer:
This represents a frameshift mutation.
Explanation:
The difference between the two sequences is that there is an extra base (C) in the second sequence. A frameshift mutation occurs when there is an insertion or deletion of a nitrogenous base into a DNA sequence.
a fishery is considered collapsed when the annual catches fall below _____ of their historic high. the stocks can no longer support the fishery.
Answers
A fishery is considered collapsed when the annual catches fall below 10 percent of their historic high.
What is a Fishery?This process involves rearing and harvesting of fishes for domestic or commercial purposes.
When the annual catch falls 10 percent below its historic high it means it has collapsed due to decrease in their number with the stocks no longer being able to support the fishery
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the growth of a plant in size is regulated by a plant hormone. explain
Answers
Abscisic acid
Abscisic acid serves as an antagonist to Gibberellic acid. It is also known as the stress hormone as it helps by increasing the plant-tolerance to various types of stress.
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Plant hormones, also known as phytohormones, regulate growth by influencing cell division, elongation, differentiation, and various physiological responses in plants. These hormones include auxins, gibberellins, cytokinins, abscisic acid, and ethylene.
Plants regulate their growth in size through the action of plant hormones, also known as phytohormones. These are chemical messengers produced by various parts of the plant, such as the roots, stems, leaves, and flowers.
There are several types of plant hormones, each with specific roles in growth regulation:
Auxins: These hormones are responsible for cell elongation and differentiation. They promote growth by increasing the flexibility of cell walls, allowing cells to elongate. Auxins are also involved in tropisms, which are growth responses to external stimuli like light (phototropism) or gravity (gravitropism).
Cytokinins: Cytokinins promote cell division and growth in areas such as roots, shoots, and fruits. They play a role in controlling the balance between shoot and root growth.
Gibberellins: Gibberellins are involved in stem elongation, seed germination, and flowering. They stimulate cell division and elongation, leading to increased plant height and size.
Abscisic Acid (ABA): ABA is often called the "stress hormone" because it regulates responses to stress conditions like drought, cold, and salinity. during adverse conditions.
Ethylene: Ethylene is a gas that regulates fruit ripening, senescence (aging), and responses to mechanical stress. It plays a role in processes like leaf abscission (shedding) and root growth inhibition.
Thus, plant hormones, also called phytohormones, control growth in plants by affecting cell division, elongation, differentiation, and a variety of physiological responses.
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Which of the following choices is a goal of science?
A. To make people happier
B. To explain how things work
C. To increase a company's sales
D. To support the government
Answers
The point of science is to explain things like biology explains life and genealogy explains genes and so on so forth
Sari and Jon disagree over who needs more calories (proportionately) per day to survive a three-month-old baby or a
grown adult San argues that a grown adult is bigger and needs more calories per pound of body weight Jon believes
the baby would require more calories per pound of body weight
he is most likely conect and why?
San, because it takes more energy to move the larger muscles that adults have, so they need more calories
Jon, because babies grow at a much berate than adults and require more cabries to support this growth
Jah, because babies are more active than grown adults and need more energy from calories
San because adults have more to do during the day and need more calories to sustain their activities
Answers
San is correct , because it takes more energy to move the larger muscles that adults and is denoted as option A.
What is Calorie?This is referred to as a unit of energy in food substances such as carbohydrates, fats etc.
Adults have larger muscles composed of bigger tissues which requires more energy for their functioning in our daily activities which is why San was correct.
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Place the following statements in the correct order in the blanks below to describe how
glucose is transported from the palisade cells to the rest of the plant. Statements may be
used once.
a. Water enters the phloem through osmosis
b. Water exits the phloem through osmosis
c. Glucose is actively transported into the phloem
d. Glucose is actively transported out of the phloem
e. Pressure from the leaves pushes the water and glucose through the phloem
f. An area of low glucose concentration is reached
____ ____ ____ ____ ____ ____
Answers
The correct order in the blanks are as follows: C A E F G B
c. glucose is actively transported in to the phloem
a. Water enters the phloem through osmosis
e. Pressure from the leaves pushes the water and glucose through the phloem
f. An area of low glucose concentration is reached
g. Glucose is actively transported out of the phloem
b. Water exits the phloem through osmosis
What is translocation?
The transport of sugar created during photosynthesis to all other areas of the plant for respiration and the other activities mentioned above is known as translocation.
Utilizing light energy, plants use photosynthesis to convert the inorganic chemicals carbon dioxide and water into glucose. Respiration uses a portion of the glucose created by photosynthesis. The seven biological processes receive energy as a result.
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Mr. jones science class is comparing three samples. Mr Jones divided his class into four groups. Each group was given one of each of the samples to measure the mass. What would be the best explanation why group 3's measurements were so different from the rest of the groups?
Answers
Answer:
C
Explanation:
i am god
which two parts of the microscope cause magnification
Answers
Answer:
Enlargement or magnification of a specimen is the function of a two-lens system; the ocular lens is found in the eyepiece, and the objective lens is situated in a revolving nose-piece.
A purple flower with a genotype PP is crossed with a white flower that has a genotype of op. What would the phenotype of the offspring be? You may need to use a punnet square to answer the question .
Answers
When a purple flower with a genotype PP is crossed with a white flower that has a genotype of pp. The phenotype of the offspring would be Purple (Pp).
What is Genotype?Genotype may be defined as the ultimate combination of the alleles of those genes which are selected for specific studies.
The phenotype of the offspring would be Purple (Pp). This is because the allele of the purple phenotype is dominant over the allele of the white phenotype. That is P > p.
The Punnett Square may be represented below:
Therefore, it is well described above.
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Sam was a 60-year-old man. As a result of picking up a heavy object, he fractured the radius and ulna of his right arm. X-rays indicated that he had severe osteoporosis. His blood calcium levels were above normal and the pathologist found cancer cells that produced a hormone-like substance. That substance was most likely
Answers
That substance was most likely parathyroid hormone.
What is a parathyroid hormone?It should be noted that the parathyroid hormone is the hormone that is released to control calcuim levels in the blood.
In this case, this is illustrated as the blood calcium levels were above normal and the pathologist found cancer cells that produced a hormone-like substance.
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The nervous system and the muscle system respond to stimuli to produce motion. The movements of
muscles are mostly voluntary. Involuntary movements occur in these muscles when the nerve impulse passes from a sensory neuron to a motor neuron via an interneuron in the
.
Answers
The nervous system and the muscle system respond to stimuli to produce motion. The skeletal movements of muscles are mostly voluntary.
Involuntary movements occur in these muscles when the nerve impulse passes from a sensory neuron to a motor neuron via an interneuron in the spinal cord.
What are Skeletal muscles?Skeletal muscles may be defined as the muscles that fasten to your bones and authorize you to achieve a broad range of activities and operations.
Skeletal muscles control the direct movement of a person's will and are hence referred to as voluntary movement.
While the spinal cord is associated with both movements directly or indirectly. It is a prolonged, delicate tubelike network liable for holding incoming and outgoing messages through the brain to the rest body.
Therefore, it is well described above.
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How many layers of tissue does an artery have?
Answers
The Artery contains three layers of tissue; Intima, media and adventitia.
The artery plays a vital role in the body; the artery carries blood away from the heart. This blood vessel carries blood away from the heart to important organs and tissues in the body.
There are there types of arteries; Elastic arteries, muscular arteries and Arterioles
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