Answer:
itosis is a process where a single cell divides into two identical daughter cells.
Explanation:
Mitosis is the only type of cellular division in which number of chromosomes is maintained
What is mitosis?During the phase of the cell cycle known as mitosis, duplicated chromosomes are physically split in half to form two new nuclei. Mitosis is a method of cell division that results in the production of cells that are genetically similar and in which the total number of chromosomes is preserved. Since this occurs during mitosis, the process is often referred to as equational division.
Mitosis serves a very vital purpose in living creatures, and one of its functions is the regeneration and replacement of worn-out and damaged tissues. Mitosis contributes to the generation of identical copies of cells and, as a result, assists in the process of healing damaged tissue or replacing cells that have been worn out.
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Examine the flow chart above depicting the job of a gene known as p53. It plays an important role during the G2 checkpoint of cell cycle regulation. In 4-6 sentences, explain why p53 is often called "The Guardian of the Genome". Is p53 an oncogene (a gene that stimulates the growth of cancer cells) or a tumor suppressor gene (a gene that turns off the growth of cancer cells)? Explain your reasoning.
The p53 protein is known as the guardian of the genome because this protein prevents errors during DNA replication. It is a tumor suppressor gene.
Tumor suppressor genesTumor suppressor genes are genes that play fundamental cellular roles and prevent cell uncontrolled growth.
A tumor suppressor gene can repair errors that occurred during DNA replication, slow down the cycle of cell division, trigger programmed cell death, etc.
The p53 acts to control cell division and cell death, thereby avoiding the emergence of cancer cells.
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Flunking science need answers
24. What energy transformation occurs
during the combustion of coal in a
power plant?
A Electromagnetic energy is
transformed to thermal energy.
B Nuclear energy is transformed to
electromagnetic energy.
C Chemical energy is transformed to
thermal energy
D Chemical energy is transformed to
noclear energy
Answer:
c
Explanation:
it's not really a chemical per se but c is close enuff
PLEASE HELP!!
Gastric secretion would include all of these except
A. pepsinogen
D. mucous
E. gastrin
C. CCK
B. HCl
Answer:
C. CCK
Explanation:
Gastric juice contains pepsinogen, HCl, mucus, rennin, and gastrin hormone.
Cholecystokinin (CCK) is secreted by I-cells of duodenum.
How is cytokinesis different in plants and animals?
Answer:
The main difference between plant cell and animal cell cytokinesis is the formation of new cell wall surrounding the daughter cells. Plant cells form a cell plate between the two daughter cells. In animal cells, a cleavage furrow is formed between the two daughter cells.
Explanation:
Have a great day!
Answer:
In plants a cell plate is formed while in animals, it forms a cleavage furrow
Explanation:
What is the use of electromagnets in metal recycling?
Answer:
To pick up all the metal scraps
Explanation:
What is the difference between permanent gases and variable gases in the atmosphere?
Answer:
the difference is that permanent gases have larger residence times and Variable gases have shorter residence times
the difference between permanent gases and variable gases in the atmosphere is permanent gases are gases that have a very low dew point.
What are the characteristics of the atmosphere?The Earth's atmosphere is basically composed of a mixture of gases, being 78% Nitrogen, 21% Oxygen and 1% Argon. In addition, traces of carbon dioxide, water vapor and other gases are found, but in very small amounts.
In this way, permanent gases are gases that have a very low dew point.
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which is the primary advantage to sexual reproduction over asexual reproduction?
Answer:
Sexual reproduction is typically advantageous over asexual reproduction because the environment is constantly changing. Sexual reproduction allows new combinations of genes to form. This greater genetic diversity increases the phenotypic variation: that is, it increases the physical variety of the organisms.
Explanation:
The Chromosomes separate & move AWAY
from each other towards the POLES of
the cell during:
Cytokinesis
Telophase
Anaphase
Prophase
Metaphase
Please answer I’d appreciate it a lot
Answer:
These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
Explanation:
Answer:
Anaphase
Explanation:
Anaphase is when the sister chromosomes seperate towards the poles of the spindle.
A ____ called _____ is found inside most plants cells
Answer:
That will be chloroplast which is called a chlorophyll.
Explanation:
Why? Because Chlorophyll can be found in green plants only and the question askes , A __ called __ is found inside of most plants cells : it didn't say all .
Note : Not all plant cell has chlorophyll.
I hope this helps.identify the statement which is not true
a biologist predict earthquakes
b scientists discover the secrets of nature
c chemists develop new chemical substances
d ecologists observes the behavior of different organisms
mismatched pair among the following is
a rhizobium - symbiosis
b penicillium notatum - fungus
c spirogyra- algae
d streptomycin- vaccine
Answer:
the answer will be a and b
What does mitochondria do
Answer:
Mitochondria are small structures that make energy in almost all of your cells. They do it by combining oxygen with fuel molecules (sugars and fats) that come from food. When mitochondria are faulty, cells don't have enough energy.Explanation:
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Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
Explanation:
what virus cycle causes immediate infection
Answer:
the lysogenic cycle does not result in immediate lysing of the host cell
Which organelle would be found in higher concentrations in a muscle cell when compared to other cell types? A) nucleus B) ribosome C) mitochondria D) cell membrane
Which of the following is not a property of water?
Answer: It becomes more dense when it freezes.
Explanation: water becomes less dense when it freezes because ice has a cage like structure.
What is CdK?
A. A protein substrate
B. An enzyme
Answer:
I think it's A) A protein substrate
during the light reactions of photosynthesis protons are actively transported:
Answer:
During photosynthesis a proton gradient is maintained by the active pumping of protons across the thylakoid membrane into the lumen of the thylakoid. ... The light dependent reactions require photosynthetic pigments that are found embedded in the thylakoid membrane.
During photosynthesis a proton gradient is maintained by the active pumping of protons across the thylakoid membrane into the lumen of the thylakoid.
What is light reaction?The initial step of the photosynthesis process is called the light reaction, and it is at this stage that solar energy is turned into chemical energy in the form of ATP and NADPH. Both the protein complexes and the molecules of the pigment contribute to the synthesis of NADPH and ATP.
The thylakoid discs are the locations of the light response that takes place. There, oxygen (O2) is produced as a byproduct of the oxidation of water (H20). After being released from water, the electrons are then transferred to ATP and NADPH. Outside of the thylakoids is where the dark reaction takes place.
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Why are zebra mussels able to spread so quickly in the United States?
a. They are weaker competitors than the local mussels.
b. They grow logistically.
C. They are more zebra mussels than there are resources.
d. There are no natural predators of the zebra mussel in the U.S.
3. An animal population decreases from 800 individuals to 600 individuals. Which of the following could explain this
change in population size?
A. The population size of the animal's predator increased.
B. The emigration rate of the animals from the population decreased.
C. The population size of the animal's prey increased.
D. The number of species competing with the animal for food decreased.
RESOURCE:
ASAP
The statement that could explain the reason for the decrease in population of an animal from 800 individuals to 600 individuals is: The population size of the animal's predator increased.
POPULATION:Population refers to a collection or assemblage of individuals of a species of organism. A population decrease means loss of individuals of a species.
Population decrease can be attributed to the following reasons:
Increase in the number of predators of that species. Emigration i.e. moving outIncrease in competition within the populationThis means that a population decrease in the animal in this question could be caused by an increase in the population of predators.
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Publishing can play a major factor in how a scientist is regarded. This is because the number of publications scientists produce can affect who gets a raise, who gets hired, who gets fired, and who gets funding to do more experiments. Consequently, a phenomenon is known as “salami-slicing” has arisen in science. Instead of publishing a large comprehensive study containing all the results as one large paper, scientists often slice up the work into the smallest units possible and publish these as several separate papers—often in different journals.
Research the phenomenon of scientific salami slicing, and list at least two possible ethical problems that can arise from this practice.
Explain how this practice can affect the way that scientific information is disseminated to nonscientists.
Create a suggestion for a policy that scientists or science journals could follow that would reduce the amount of salami-slicing that occurs in research. Suggest any problems that the policy might cause.
Salami slicing is the procedure of dividing one single article research into several publications. It is an unethical practice because hampers the healthy competence between scientists for research (job) positions.
In the phenomenon referred to as 'salami slicing', a group of similar research articles published by the same research group are considered 'slices' of the same salami.
This practice can affect not only the work of scientists but also journalists who might report the same results once and again.
A possible solution for this problem is to create a Review Board consisting of experts capable of identifying salami slice articles and then punish the responsible parties.
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Please help me...
Will give the brainliest !!!!
Answer:
B
Explanation:
Seems like the only "natural" option. (Something not caused by humans).
Answer:
Hi, im LuisUchihaYT, but ik lost my acc, can u help me out with something like in 1 hour ( im going to ask lots of questions-
Say my day is good if u like girls and if your single
Answer:
Have a good and Nice day ahead !!!Explanation:
Have a great day ahead........
Passive transport move molecules without
Answer:
Passive transport moves molecules without energy
Explanation: hope this helps plz make brainlist
how long does it take for food to be digested and pooped out?
Answer:
The food you've eaten goes down your oesophagus to your stomach, then to your small intestine, large intestine, and out out the anus during digestion, which can take anywhere from 24 to 72 hours.
Explanation:
Answer:
Lol going to copy his answer for points
Explanation:
The food you've eaten goes down your esophagus to your stomach, then to your small intestine, large intestine, and out out the anus during digestion, which can take anywhere from 24 to 72 hours.
Why does Iceland have geothermal energy?
Answer:
Due to the geological location of Iceland (over a rift in continental plates), the high concentration of volcanoes in the area is often an advantage in the generation of geothermal energy, the heating and making of electricity. During winter, pavements near these areas (such as Reykjavík and Akureyri) are heated up.
Explanation:
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Answer:
Due to the geological location of Iceland (over a rift in continental plates), the high concentration of volcanoes in the area is often an advantage in the generation of geothermal energy, the heating and making of electricity. During winter, pavements near these areas (such as Reykjavík and Akureyri) are heated up.
Explanation:
How many cells are produced during each round of meiosis?
Answer:
During meiosis, diploid cells replicate their DNA, followed by two rounds of cell division, producing four haploid sex cellsExplanation:
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What dating technique could scientist use to find the age of a meteoroid?
Answer: isochron method.
Explanation:
Can someone please help me with the next 15-20 questions that I'm about to upload today? they're all due today and it's for physical science 11th grade
Answer:
yes
Explanation:
I can help. As long as it's before 9
refer to vs map: gene expression—flow of information from gene to protein tour. which base pairing is incorrect?
where does the carbon for photosynthesis come from
Carbon Dioxide
Don't ask me how I got it, I just remeber
Ps. Branilist would help a lot