Why does DNA replication occur before mitosis and cell division?
Answers
Answer:
Explanation:
DNA replication needs to occur because existing cells divide to make new cells, so that the DNA needs to be copied before cell division so that each new cell receives a full set of instructions.
DNA replication - It is the process of producing two identical copies of DNA molecules from one original DNA molecule.
The cell cycle is the series of events that lead to a cell's genome duplication and final division into two daughter cells.
It consist of two main phases - Interphase and M phase
DNA replication occurs at the interphase during S phase of the cell cycle.
Mitosis begins after interphase.
DNA replication occurs before mitosis and cell division so that each newly formed daughter cell receive full set of chromosomes as of parent cell in their nucleus. DNA contains instructions that helps the newly formed cells to operate properly.
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Related Questions
As energy flows through an ecosystem, energy ____ as it moves to the next trophic level
A. decreases by 10%
B. increases by 90%
C. decreases by 90%
D. increases by 10%
Answers
(BRAINLIEST QUESTION) Match the genotype to the correct description.
Aa
AA
aa
Answers
Answer:
Aa is Heterozygous. AA is Homzygous dominant and aa is Homzygous recessive. Hope this helps you :)
Explanation:
Organic molecules are sometimes found within meteorites that crash into Earth Which meteorite condition in space is similar to what most likely was present
Earth's early atmosphe
Abundance of oxygen
Very cold temperatures
Presence of inorganic molecules
Low levels of ultraviolet radiation
Answers
its presence of inorganic molecules- hope this helped, good luck!
Answer:
c
Explanation:
Please help asap thank you so much
Answers
.A substance from outside needs to reach genes in the cells of your body. In which order will it encounter different parts of the cell? cell wall -- cell membrane--- nuclear membrane ---cytoplasm—gene cell membrane--- cytoplasm –gene cell membrane--- cell wall ----cytoplasm---- nuclear membrane---- gene cell membrane -----cytoplasm----- nuclear membrane----- gene
Answers
Answer:
cell membrane -----cytoplasm----- nuclear membrane----- gene
Explanation:
A cell is made up of three part this include the cell membrane, the cytoplasm and the nucleus.
cell membrane encloses the cells and it prevent external material from getting inside the cell while the nucleus is formed by a nuclear membrane around a fluid nucleoplasm. chromatin in the nucleus contain deoxyribonucleic acid (DNA) which is the genetic material of the cell.
The cytoplasm is fluid found in the cell. It is gel like in nature and a medium for chemical reaction.
cell membrane -----cytoplasm----- nuclear membrane----- gene
The arrangement will be a cell membrane for protection followed by the cytoplasm thatbis located in between the cell membrane and the nucleus then the nuclear member found around the nucleus. The nucleus contains the DNA which is the genetic information of an individual gene.
The drama club is selling tickets to their play. Tickets cost $12 for students and $20 for adults. The club sold 150 tickets and made $2,040. The
graph models the situation
150
120
Student
90
Tickets Sold
60
30
0
30 60 90 120 150
Adult Tickets Sold
How many student and adult tickets were sold?
A They sold 30 student and 120 adult tickets.
B. They sold 120 student and 30 adult tickets.
C. They sold 100 student and 50 adult tickets.
D. They sold 50 student and 100 adult tickets.
Answers
Answer:
B. They sold 120 student and 30 adult tickets.
Explanation:
120 x 12 = 1,440
30 x 20 = 600
1,440 + 600 = 2,040.
Answer:
B. They sold 120 student and 30 adult tickets.
Explanation:
1. Determine whether the following statement is an observation or an
inference "The container is filled to the 350 mL mark with water".
1. Observation
2. Inference
3. Prediction
Answers
PLEASE RESPOND FAST!!!!!!!!!
_____ pressure is what gives plants that are not woody their rigid structures.
Hypertonic
Hypotonic
Turgor
Turgid
Isotonic
Answers
Answer:
I'd say C.)
Explanation:
Turgor pressure, also called turgidity when occurring in trees and most plants are the pressure of cell contents exerted against the plant cell wall including tree leaf and stem cells. ... This force consequently gives a succulent plant rigidity and helps non-woody plants to keep erect.
How might scientific knowledge about monoculture farming affect societal decisions? Please be sure to answer in complete sentences.
Answers
Answer:
People could choose to practice organic farming, heirloom plants, or use GMOs.
Governments could pass laws to limit the use of monoculture farming.
Governments could pass laws requiring people to use alternate farming methods
Explanation:
Answer:
People could choose to practice organic farming, heirloom plants, or use GMOs. Governments could pass laws to limit the use of monoculture farming.Governments could pass laws requiring people to use alternate farming methods
If PCBs escaped into the river in large amounts and entered the lower levels
of the food chain, what would be the likely outcome?
Answers
Answer:
Over time, PCBs would collect in top predators such as salmon, making them unsafe for human consumption.
Explanation:
PCBs last a long time in the environment before breaking down and may find their way into the food chain. Low levels of PCBs can be found in fish, shellfish, meat, poultry, milk, dairy products, and other foods. Since PCBs have not been made since 1977, the levels in the environment have been declining over the past several years. Predators at or near the top of the food chain (e.g. birds, fish) have the highest levels of PCBs in their bodies.
Which statement describes an advantage of models?
O Models can be used to communicate and test designs ideas.
Models always show the exact size of a system.
Models have the ability to develop into complex systems.
Models are useful for developing scientific methods.
Answers
Peptide bonds in proteins can be broken down by the enzyme peptidase. Adrian orders a hamburger and French fries for lunch. He adds cheese and mayonnaise to his hamburger, and then sits down to eat lunch with his friends. Which structure would MOST likely result from the action of peptidase in Adrian’s small intestine?
Answers
Answer:
Hello. I think the answer is small peptides and amino acids.
Explanation:
Proteins are polymers that their monomer is amino acid.
First digestion of proteins accurs in stomach.
Stomach enzymes digest proteins but not to amio acid. They digest it to small peptides.
Then the other proteins and small peptides enter the small intestine.
In small intestine peptidaze digests proteins and transform them to small peptide.
The small peptides that came from stomach are digested to amino acids and most of them is absorbed by the epithelial cells of intestine wall.
I hope you understand.
Amino acid is the structure would MOST likely result from the action of peptidase in Adrian’s small intestine.
Proteins are made up of monomers of amino acids. Adrian diet is rich in proteins that is present in hamburger and French fries along with the cheese and mayonnaise.The food passes through various organs in the body of the digestive system where digestion of food occurs.The proteins are first digested in stomach then in the intestine. In the intestine the proteins are broken down into peptides and further into amino acids by the enzyme peptidase.Hence, amino acid is the correct answer.
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Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms
Answers
Answer:
The seaweed in the Kelp forest goes through photosynthesis, takes in carbon, other organisms eat the seaweed and take in the carbon.
1) Which of the following statements is TRUE with regard to the human hand?
a) There are 5 carpals, 8 metacarpals and 14 phalanges.
b) There are 8 carpals, 6 metacarpals and 14 phalanges
c) There are 8 carpals, 5 metacarpals and 15 phalanges
d) There are 8 carpals, 5 metacarpals and 14 phalanges
e) There are 5 carpals, 8 metacarpals and 15 phalanges
Answers
Carpal bones are bones of the human hand and consists of eight wrist bones which connects hand to the forearm. The Wrist is known as carpus and is the sole cluster of bones.
These bones don't belong to fingers and are labeled in alphabetical order from A to H. The metacarpals are thin and long bones that are connected by carpal bones in the wrist and the phalanges. They all are made of a base, shaft, and head. The first metacarpal is the thickest and shortest of them all. The phalanges are tubular ones in the thumb and the fingers found in the foot.They consist of proximal, distal, and middle phalanx. hence fourteen in total.Hence the option D is correct that is 8 carpals, 5 metacarpals, and 14 phalanges.
Learn more about which statement is true regarding the human hand.
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If oxygen was removed from the equation, what chemical would build up?
Answers
Answer:
co2
Explanation:
Hope this helps, have a nice day!
Enzymes are composed of what organic molecule? A. Sugars B. DNA C. Fatty acids D. Proteins
Answers
Answer: D. Because enzymes are protiens but they are produced of amino acids
Explanation:
Enzymes are composed of proteins, that assist our bodies' chemical reactions to move forward more quickly. For several processes, including digestion and liver function, enzymes are crucial.
What is the function of enzymes?
Health issues might result from having too much or too little of a specific enzyme. Healthcare professionals can also use the enzymes in our blood to look for injuries and illnesses.
Among countless other functions, they are crucial for breathing, food digestion, and the health of the muscles and nerves. Numerous enzymes can be found inside each cell of the human body. Each cell's internal chemical operations can be aided by enzymes.
Digestion enzymes are produced by your pancreas, small intestine, and stomach. The "powerhouse" of digestion's enzymes is actually the pancreas. The most significant digestive enzymes are produced by it.
Therefore, in the human body, enzymes aid in accelerating chemical reactions, hence option D is correct.
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When two molecules are put in the same container they do not attract each other. Why does this happen?
a.they are both polar
b. they both contain oxygen
c. one is polar one is nonpolar
d. they contain different elements
Answers
Answer:
The correct answer is C.
C. One is polar one is nonpolar
Explanation:
Do cells respond to every signal? Explain.
Answers
Answer:
No, they only respond to a signal if they have a receptor that can receive the signal.
Explanation:
PLEASE HELP MEE GUYSSS
Answers
Answer:
Im pretty sure that It is A
Explanation:
Brainliest?
How could membrane fluidity be maintained in human cell membranes as the temperature decreases
Answers
Answer:
"At low temperatures it increases membrane fluidity by preventing fatty acid hydrocarbon chains from coming together and crystallizing."
Explanation:
variables for how does adding fertilizer affect the growth of a plant?
Answers
Answer:
Environmental factors that affect plant growth include light, temperature, water, humidity, and nutrition. It is important to understand how these factors affect plant growth and development.
Explanation:
Which cellular structure synthesizes proteins and is found in
both eukaryotes and prokaryotes?
Answers
Answer:
Ribosomes
Explanation:
Every cell needs robiosomes to form proteins.
I NEED HELP ASAP! (Picture is attacted) You Dha Real One IF YOU DO!
Answers
Select three functions of the cell membrane: *
:
A. It sends and receives messages to maintain homeostasis
B. It prevents anything harmful from entering the cell.
C. It creates separation between the cell and the outside.
D. It changes lipids into usable proteins for the cell.
E. It controls the movement of molecules in and out of the cell.
F. It holds all of the genetic material for the cell.
Answers
Answer:
B, C, E
Explanation:
Answer:
B,C,E
Explanation:
What is crop rotation?
A)growing different crops to deplete the soil
B)the process of growing different crops throughout the year
C)turning watermelons over during the growing season
Answers
Answer:
A) Growing different crops to deplete the soil
1. What is the Driving Mechanism of Continental Drift?
Answers
Answer:
Holmes proposed that the continents, which “floated” on the Earth's mantle, moved with the convection flow of the magma (hot semifluid below the Earth's crust). The mechanism of continental drift is like the flow of branches floating in the moving waters of rivers, as shown in Figure 3-11.4.
Explanation:
Write a hypothesis for each of the variables in your experiment (which factor increases cricket chirping).
Answers
many insects live in many different types of temperature
the insects like chirps and cricket are increasing due to the temperature and global warming
true or false: 1. T F Cities are usually colder than their surrounding regions. 2. T F Climate has no effect on the formation of soil. 2.T F Mangroves are a keystone species. 3. T F The brackish water of estuaries does not support a diversity of marine life. 4. T F Large browsing animals are abundant in chaparral. (O
Answers
Answer:true
It is true
Explanation:
Answer:
Yup it's True!
Explanation:
The __ releases enzymes that digest proteins
Answers
Answer:
Digestive Enzymes.
Explanation:
I don't really have an explanation.
Answer:
pancreas
Explanation:
Which of the following is made of cells?
A. Blood
B. Muscle tissue
C. Nerves
D. Oxygen
Answers
The answer is A. Blood
