Answer:
The answer will be listed below.
Explanation:
1.)-
a.) G1 Phase- Following cytokinesis, during G1 phase the cells monitor environment for the potential growth factors, grow larger and once achieve the threshold size then starts the progression through S phase.
b.) S Phase- To produce two similar daughter cells, the complete DNA instructions in the cell must be duplicated. DNA replication occurs during this S phase.
c.) G2 Phase- During the gap between DNA synthesis and mitosis, the cell will continue to grow and produce new proteins. At the end of this gap is another control checkpoint to determine if the cell can now proceed to enter Mitosis and divide.
d.) Mitosis- Prophase, Metaphase, Anaphase, and Telophase occurs in Mitosis. During prophase, the parent cell chromosomes, which were duplicated during S phase, condense and become thousands of times more compact than they were during interphase.
Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. As metaphase continues, the cells partition into the two daughter cells.
Anaphase- In anaphase, the sister chromatids separate from each other and are pulled towards opposite ends of the cell. The protein that holds the sister chromatids together is broken down, allowing them to separate.
During telophase (the final stage), the chromosomes arrive at the cell poles, the mitotic spindle disassembles, and the vesicles that contain fragments of the original nuclear membrane assemble around the two sets of chromosomes.
e.) Cytokinesis- During cytokinesis, the cytoplasm splits in two and the cell divides.
2.) They go through the process of Mitosis. Mitosis consists of four steps: Prophase, Metaphase, Anaphase, Telophase.
3.) Mitosis takes place all over the body, while meiosis only takes place in the sex organs and produces sex cells. Mitosis consists of one stage whereas meiosis consists of two stages. Mitosis produces diploid cells, whereas meiosis produces haploid cells. Mitosis produces two identical daughter cells whereas meiosis produces four genetically different daughter cells.
A similarity between mitosis and meiosis is that they both produce new cells and start with one a single parent cell to duplicate.
4.) Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.
5.) The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
6.) A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics.
7.) The opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.
8.) Transcrption-
Initiation- The DNA molecule unwinds and separates to form a small open complex.
Elongation- RNA polymerase moves along the template strand, synthesising an mRNA molecule.
Termination- In prokaryotes there are two ways in which transcription is terminated.
Processing...
Translation- Translation happens in four stages: activation (make ready), initiation (start), elongation (make longer) and termination (stop). These terms describe the growth of the amino acid chain (polypeptide).
9.) A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses. Mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.
10.) DNA fingerprinting is a method used to identify an individual from a sample of DNA by looking at unique patterns in their DNA.
identify the layers from oldest to youngest using those letters
fast answer pls ill mark u brilliant
How does deforestation affect coral reefs?
Answer: When the forest cover is lost, soil washes away into rivers that flow into the oceans and, they believe, onto coral reefs. That runoff adds nutrients to the ocean water.
Explanation: Basically, when this occurs, the roots are no longer attached to the soil, letting all the nutrients get ruined in the ocean water instead of feeding plants/animals/trees.
Use the following experiment to answer questions #16-#20. The materials needed are an ice cube tray, water, a clear jar or glass, and food coloring (darker food colorings are better).
16) Mix the water and food coloring and pour it into the ice cube tray. Put the ice cube tray in the freezer till frozen. Once frozen, fill the clear glass with warm water. Add one colored ice cube to the glass. Observe what happens. What starts to happen?
17) Does the colored water sink or float?
18) Why does the colored water behave in this manner?
19) How does this experiment show heat transfer?
20) What is this process called?
Answer:
the water begins to sink to the bottom of the glass. The colored water behaves this way because of convection currents. As the warm air rises, a pattern of air movement is formed called a convection current. We can see this in air and in water. The process is convection current.
Explanation:
Convection is one of three main types of heat transfer. The other two being radiation and conduction. Convection is the transfer of heat by the movement of heated particles into an area of cooler particles. You can experience convection when you light a match. The air directly above the lit match is always hotter than the air around the match.
This difference in temperature around the match is caused by effect of heat on the density of air. Hot air is less dense than cool air and will rise leaving the cooler air below. As the warm air rises, a pattern of air movement is formed called a convection current. We can see these convection currents in air and in water.
Convection currents in the atmosphere affect our weather. The rising of warm air and falling of dense cool air causes our winds. When warm, moist air rises and mixes with cold air, the atmosphere becomes unstable. This causes thunderstorms.
The Gulf Stream off the eastern coast of the States is a convection current. It carries warm water from the tropics up the east coast north toward the cold arctic waters.
Heat affects the density of water as well. You can create your own convection current with water that will allow you to see the currents caused by the density difference of water at different temperatures.
The warm water will melt the ice cube, but the resulting water will be very cold. This cold, dense water will sink to the bottom of the glass. You can see this happening because the melted water from the ice cube will be whatever color you made your ice cube.
As the water warms, it will rise back to the top of the glass. The colored water will allow you to see the convection current in the glass.
non- examples for Friction ?
Answer:
oil and water trying to mix
water splashing
an oily surface, such as wax, where you walk
Explanation:
Situations or objects where friction is absent or negligible are considered non-frictional examples. Here are some examples:
An example of how friction affects motion is a hockey puck sliding on ice. In this case, friction occurs between the puck and the ice.A ball rolls smoothly and without resistance on a surface: without friction, the ball would roll without stopping.Ice Skating: This is made possible by the minimal friction between the skates and the surface, while moving smoothly on the ice.When an object is traveling through a vacuum, friction is not a significant factor because there is no air or other matter to provide resistance.Learn more about Friction, here:
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Multiple Choice: Which survivorship curve best describes most marine organisms (few adults produce large number of eggs and larvae)
Complete question:
Which survivorship curve best describes most marine organisms (few adults produce a large number of eggs and larvae).
Type IType IIType IIINone of the aboveAnswer:
Type III
Explanation:
There are three survivorship curves, each of them corresponding to different species according to their reproductive strategies.
Type I. Organisms do not tend to die when they are young or middle-aged, but they do when they are old. These species, in general, have a few descendants and parents provide much parental care to ensure their progeny to survival. Type II. Organisms that have more or less the same probabilities of dying in each age interval. These organisms can also have a few descendants and they can provide significant parental care. Type III. Only a few individuals survive their first period of life or their firsts years. However, the lucky ones to reach a certain age generally have a long life. These organisms have a lot of descendants at the same time, but they do not provide much parental care. This is the case of most marine organisms that produce a large number of eggs and larvae when they are adults, but they do not provide parental care.During which phase of meiosis does the separation of homologous chromosomes occur?
Answer:
In anaphase I, centromeres break down and homologous chromosomes separate. In telophase I, chromosomes move to opposite poles; during cytokinesis the cell separates into two haploid cells.
Let me know if this helps
Thanks :)
Explanation:
5. Which of the following statements correctly identifies a way in which
prokaryotic cells are different from eukaryotic cells? *
Prokaryotic cells have flagella, while eukaryotic cells do not.
Prokaryotic cells have chloroplasts, while eukaryotic cells do not.
O
Prokaryotic cells only have free-floating DNA, while eukaryotic cells have DNA
enclosed in a nucleus.
Prokaryotic cells only have cell membranes, while eukaryotic cells have both cel
membranes and cell walls.
Answer:
I think the correct answer is the number 2
Adenine and Thymine are examples of...
Adenine and Thymine are examples of nitrogenous bases in a nucleotide.
What is a nucleotide base?A nucleotide is the monomer constituting DNA or RNA biopolymer molecules.
Each nucleotide consists of a nitrogenous heterocyclic base (or nucleobase), which can be either a double-ringed purine or a single-ringed pyrimidine; a five-carbon pentose sugar (deoxyribose in DNA or ribose in RNA); and a phosphate group.
The two classes of nitrogenous bases are purines and pyrimidines and they are as follows;
Purines - Adenine and GuaninePyrimidines - Cytosine, Uracil, ThymineAccording to this question, Adenine and thymine are examples of nitrogenous bases.
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Can a person keep a ringneck dove and a diamond dove together?
Answer:
Ringnecks and diamond doves can be kept as pets in a variety of ways. They can be a single bird, bonded to its owner with or without free flight within the home, or they can be a breeding pair, bonded to one another, producing young
PLZ HELPPPP I NEED IT NOWEE
Which organelle acts as the cells command center?
-Nucleus
-Ribosomes
-clole
-Chloroplasts
-Lysosomes
Answer:
nucleus
Explanation:
3. Which of the following is an example of an artificial concept?
mammals
a triangle’s area
gemstones
teachers
Answer:
A triangle's area
I hope I helped you, have a great dayy
What do you think is happening in this picture?
Answer:
the dot are tranporting to the other section Explanation:need a bit mor
info tho
Which of the following are not present in animal cells?
g The gastrointestinal tract has 4 basic layers. Which layer is the one that comes in contact with the food that you eat?]
Answer:
Muscularis propria
Explanation:
The gastrointestinal tract has the following four basic layers:
1. Mucosa is the innermost layer
2. Submucosa is underneath the Mucosa
3. Muscularis propria
4. Adventitia is the outermost layer
Muscularis propria is the one that comes in contact with the food that you eat.
KUES Questions
8. A water wave has a frequency of 2 Hz and a wavelength of
5 m. How fast does it travel through the water?
Answer:
10m/s
Explanation:
Given parameters:
Frequency of wave = 2Hz
Wavelength = 5m
Unknown:
Speed of the wave = ?
Solution:
The speed of a wave is derived from the product of wavelength and frequency;
speed = frequency x wavelength
Insert the parameters and solve;
speed =2 x 5 = 10m/s
Help me please , easy 10 points ... just look at the picture & answer the question.
8. What does the term aromatic imply about an organic molecule
5. Condensation
6. Evaporation
a. Liquid water changes into water vapor.
b. Water vapor changes into liquid water in the clouds.
Answer:
5 condensation - b water vapor changes into liquid water in the clouds
6 evaporation - a liquid water changes into vapor water
Explanation:
sorry if I'm wrong
Answer:
5 condensation - b water vapor changes into liquid water in the clouds
6 evaporation - a liquid water changes into vapor water
Explanation:
What is planned goal for the Europa Clipper mission (if you answer you get 100 pints need ASAP
Answer:
NASA's Europa Clipper will conduct detailed reconnaissance of Jupiter's moon Europa and investigate whether the icy moon could harbor conditions suitable for life.
Explanation:
Soil is made of three different types of parent material. They are:
A) Clay, rock and sand
B) Sand, soil and gravel
C) Clay, sand, and silt
D) Silt, gravel, and clay
Answer:
c
Explanation:
How is the cell division of cancer cells like these misregulated?
Select all that apply.
Such cells are not inhibited by density.
Such cells can divide in the absence of growth factors.
Such cells skip the G1 phase of the cell cycle.
Such cells do not require anchorage to a surface in order to divide.
Such cells do not respond to signals that normally trigger apoptosis.
Such cells do not need enzymes for DNA replication.
Cancer is due to irregularities in cell division that are caused by mutations in cancerous cells. These mutations inhibit apoptosis and favor cell division. Among the options, the correct ones are 1, 2, 4, and 5.
------------------------------------------
Cancer is the result of irregular cell division.
Its development and progression are closely related to changes in the cell cycle regulator factors.
Cancerous cells
• Divide when they should not do it ⇒ overactivity of the positive cell division regulators.
• Do not stop dividing when they should ⇒ reduction in the activity of cell division inhibitors
• Do not die when they should ⇒ loss of the apoptotic capability
• Leave the area where they are growing ad travel to other parts of the body ⇒ metastasis
Normal cells divide and die during a programmed period.
When a normal cell mutates or suffers from any alterations that can not be repaired, it automatically activates its apoptotic process.
However, cancerous cells lose the capability of dying and their reproductive inhibition, so they keep growing and dividing with no limits.
The unlimited division occurs because mutations in cancerous cells influence the cell cycle by favoring proliferation and inhibiting senescence and apoptosis.
These cells do not depend on external growth factors or other protein signals to divide.
Cancerous cells can release their own growth factor and even influence neighbor cells to produce and release these substances.
Cell division is constant even when there is no space.
Sometimes over multiplication creates tumors that might affect healthy neighbor cells and the tissue itself.
Among the options,
1) Such cells are not inhibited by density. CORRECT
2) Such cells can divide in the absence of growth factors. CORRECT
3) Such cells skip the G1 phase of the cell cycle. INCORRECT
4) Such cells do not require anchorage to a surface in order to divide. CORRECT
5) Such cells do not respond to signals that normally trigger apoptosis. CORRECT
6) Such cells do not need enzymes for DNA replication. INCORRECT
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Cancer cells can divide in the absence of growth factors. Cancer cells do not require anchorage to a surface in order to divide. Cancer cells do not respond to signals that normally trigger apoptosis.
Cancer cells can multiply without any growth factors whereas normal cells will not divide without the addition of growth factors. Cancer and tumor cells are less dependent on anchorage. They are free to proliferate, and invade tissues. A normal cell that have damaged DNA will undergo apoptosis while on the other hand, cancer cell with unfixable DNA will not undergo apoptosis and will continue multiplication.
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summarize the voting rights guaranteed by amendment fifteenth nineteenth. twenty-six
Answer:
The Fifteenth Amendment gave the right to vote to former slaves and people of color. Well, the Nineteenth Amendment gave the right to vote to women, and the Twenty-third, Twenty-fourth, and Twenty-sixth amendments gave representation to the District of Columbia, outlaw poll taxes, and lowered the voting age to 18.
ILL MARK BRAINLIEST PLEASE ANSWER QUICK!!!!
Answer:
C, B, A, D
Explanation:
I'm pretty sure this is it, sorry if it's wrong
please urgent help... below is a diagram of a cart on a flat surface being acted upon by a force to the right. assume that friction is negligible. use the diagram to answer the following question. if the mass of the cart was increased to 20 kg, what would happen to the acceleration? the acceleration would...
Read the excerpt from Part 2 of "The Most Dangerous Game,” by Richard Connell. Then, wet with sweat and aching with tiredness, he crouched behind the stump of a lightning-charred tree. He knew his pursuer was coming; he heard the padding sound of feet on the soft earth, and the night breeze brought him the perfume of the general's cigarette. It seemed to Rainsford that the general was coming with unusual swiftness; he was not feeling his way along, foot by foot. Rainsford, crouching there, could not see the general, nor could he see the pit. He lived a year in a minute. What conclusion can a reader draw about Rainsford based on a visualization of the excerpt? He is relieved. He is lost. He is frightened. He is confused.
Answer:
I think it's he is frightened
Explanation:
hope this helps (￣▽￣)"
Answer:
c on edge
Explanation:
EXPLAIN 2 DIFFERENCES BETWEEN THE BREAD MAKING ANDALCOHOL PRODUCTION PROCESSES.
Answer:
Pastry dough is rolled out thinly and used as a base for baked products. Pastry is differentiated from bread by having a higher fat content, which contributes to a flaky or crumbly texture. ... On the other hand, overmixing results in long gluten strands that toughen the pastry.
Is everything in an ecosystem is connected?
ILL GIVE BRAINLY PLZ HELP Fisherman at Reelfoot Lake, in Northwest Tennessee, noted a drop in the number of catfish. What is the most reasonable conclusion, based on the data provided?
A) The pH of the rain will not affect the fish that live in the lake.
B) The pH of the rain falling into the lake is of level that it is killing the adult fish.
C) The pH of the rain falling into the lake is of level that it is affecting fish reproduction.
D) The pH of the rain falling into the lake is of level that it is both affecting fish reproduction and killing adult fish.
Answer:
D, if you look at the acid rain it covers both death of fish and reproduction
Which of the following is NOT a necessary input for the process of cellular respiration? 1. CO2 (carbon dioxide) 2. Glucose 3. Sugar 4. O2 (oxygen)
Answer:
CO2
Explanation:
Hope this helps :)
CO2 (carbon dioxide) is NOT a necessary input for the process of cellular respiration.
What is cellular respiration ?
A series of chemical reactions known as cellular respiration break down glucose into ATP, which can be used as energy to power numerous body processes. Cellular respiration has three main stages: the citric acid cycle, glycolysis, and oxidative phosphorylation. The citric acid cycle takes place in the mitochondrial matrix, glycolysis takes place in the cytosol, and oxidative phosphorylation takes place on the inner mitochondrial membrane. Glucose, ATP, and NAD+ are the cellular respiration starting reactants, the rate-determining enzymes for cellular respiration are phosphofructokinase-1, pyruvate dehydrogenase, and isocitrate dehydrogenase, and the final products include ATP and water. One or more enzymes involved in cellular respiration, like succinyl-CoA-synthase or pyruvate kinase, are typically disrupted by diseases that affect this process.Glycolysis is the only process that can take place without oxygen, and only two ATP molecules can be produced for each glucose molecule. ATP and H2O are the two final end products of cellular respiration. Glycolysis produces two pyruvate molecules, four ATPs (a net of two ATP), two NADH molecules, and two H2O molecules.One acetyl-CoA, one NADH, and one CO2 are produced for each pyruvate molecule when oxygen is present. One GTP, three NADH, one FADH2, and two CO2 are the products of the TCA cycle. GTP is an energy-rich compound similar to ATP that is typically used in environments with lower pH. The electron transport chain can then use NADH and FADH2 to make more ATP as part of oxidative phosphorylation.
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