Mitosis is a process of cell division, whereby a single cell divides into two genetically identical daughter cells. The five stage of mitosis are interphase, prophase, metaphase, anaphase and telophase.
1. Interphase:
The DNA in the cell is copied in preparation for cell division, this results in two identical full sets of chromosomes?.
Outside of the nucleus? are two centrosomes, each containing a pair of centrioles, these structures are critical for the process of cell division.
During interphase, microtubules extend from these centrosomes.
2. Prophase:
The chromosomes condense into X-shaped structures that can be easily seen under a microscope.
Each chromosome is composed of two sister chromatids, containing identical genetic information.
The chromosomes pair up so that both copies of chromosome 1 are together, both copies of chromosome 2 are together, and so on.
At the end of prophase the membrane around the nucleus in the cell dissolves away releasing the chromosomes.
The mitotic spindle, consisting of the microtubules and other proteins, extends across the cell between the centrioles as they move to opposite poles of the cell.
3. Metaphase:
The chromosomes line up neatly end-to-end along the centre (equator) of the cell.
The centrioles are now at opposite poles of the cell with the mitotic spindle fibres extending from them.
The mitotic spindle fibres attach to each of the sister chromatids.
4. Anaphase:
The sister chromatids are then pulled apart by the mitotic spindle which pulls one chromatid to one pole and the other chromatid to the opposite pole.
5. Telophase:
At each pole of the cell a full set of chromosomes gather together.
A membrane forms around each set of chromosomes to create two new nuclei.
The single cell then pinches in the middle to form two separate daughter cells each containing a full set of chromosomes within a nucleus. This process is known as cytokinesis.
I know this is long, but hope it helps!
when pressure is low but temperature and humidity are high,what type of weather happens?
Low pressure systems tend to result in unsettled weather, and may present clouds, high winds, and precipitation. As the low pressure intensifies, storms or hurricanes can be formed.
The photograph shows a type of wave technology.
Which need or want does this technology meet?
A. It allows people to rapidly freeze items.
B. It allows people to rapidly heat items.
c. It allows people to measure the speed of objects.
D. It allows people to see very small objects clearly
Answer: d
Explanation:
these are visual/optical waves
In humans, having freckles is dominant over not having freckles. Jodie and Brian are both hybrid (F) for freckles. They
have four children. What is the chance that each child has freckles? (Remember that with each bith, the chance of
having a child with or without freckles starts over.
O all of them had freckles
O1out of 4
O2 out of 4
•3 out of 4
Answer:
All of them had freckles
Explanation:
If having freckles is dominant over not having freckles and Jodie AND Brian are both hybrid for freckles, there should be no error in all children having freckles. Hopefully this helps
Why is it important for a plant to be able to both stimulate and inhibit growth?
Answer:
so that it can get the proper nutrients it needs.
Explanation:
Plant growth controllers are utilized to adjust a yield by changing the rate or example, or both, of its reaction to the inside and outside factors.
Importance of plant growth and stimulation:Growth controllers are significant in elaborate plants and agricultural yields that would require work concentrated control and pruning. The inhibitors are utilized to keep establishes the ideal size and shape and control organic product arrangement.
Ethylene is viewed as a multifunctional phytohormone that directs both development, and senescence.
Find more information about plants here:
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For a series of experiments, a linkage group composed of genes W, X, Y and Z was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a gene map. Determine the sequence of genes on the chromosome.
Complete question:
For a series of experiments, a linkage group composed of genes W, X, Y and Z was found to show the following gene combinations. (All recombinations are expressed per 100 fertilized eggs). Construct a gene map. Determine the sequence of genes on the chromosome.
w-x = 5w-y = 7w-z = 8x-y = 2x-z = 3y-z = 1Answer:
The sequence of genes on the chromosome is:
----W-------------------------X-----------Y------------Z---
Explanation:
First, we need to know that 1% of recombination frequency = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.
The map unit is the distance between the pair of genes for which every 100 meiotic products, one results in a recombinant one.
The recombination frequencies between two genes determine their distance in the chromosome, measured in map units. So, if we know the recombination frequencies, we can calculate distances between the four genes in the problem and we can figure the genes order out. This is:
Recombination frequencies:
1% of recombination frequency = 1 map unit (MU)
w-x = 5 MUw-y = 7 MUw-z = 8 MUx-y = 2 MUx-z = 3 MUy-z = 1 MUNow that we know the distances, we just need to analyze them to find out the correct order of the genes. First, we can look for the biggest distance, which tells us which genes are located in the extremes. w-z distance is the biggest one, so these two genes are in the extremes of the chromosome segment. ---W----------------------------------------------Z---
∫---------------------8 mu-------------------∫
The rest of the genes are located in the middle between these two.
The second biggest distance is between w-y (7 mu). Y is also 1mu distant from Y. 7 mu + 1 mu = 8 mu. So, Y is located closer to Z.
---W-------------------------------------Y------------Z---
∫-----------------------7 mu---------∫∫---1 mu--∫
∫---------------------8 mu-------------------------∫
w-x = 5 mu, and x-y = 2mu, so x is located between w and y. The sum of these distances equals the distance w-y ( 5 mu + 2 mu = 7 mu). So,
---W-------------------------X----------Y------------Z---
∫-----------5 mu -------∫∫--2mu--∫
∫-----------------------7 mu---------∫∫---1 mu--∫
∫---------------------8 mu-------------------------∫
We know that the distance between x-y equals 2, and the distance between y-z equals 1. Also, the distance between x-z equals. This leads us to assume that Y is located between X and Z.
----W-------------------------X-----------Y------------Z---
∫-----------5 mu -------∫∫--2mu--∫∫----1mu---∫
∫------ 3 mu-----------∫
∫-----------------------7 mu---------∫∫---1 mu---∫
∫---------------------8 mu--------------------------∫
How does one process provide the raw materials for the other and vice versa?
The raw materials are water, carbon dioxide, oxygen, glucose, and energy.
Explanation:
Photosynthesis takes water and carbon dioxide and turns into glucose sugar.
6
H
2
O
+
6
C
O
2
=
=
=
=
=
=
1
C
6
H
12
O
6
+
6
O
2
To do this the cell must capture energy from the sun to change the chemical bonds.
Respiration takes the sugar produced by the process of photosynthesis and "burns" it using oxygen to produce energy in the form of ATP.
1
C
6
H
12
O
6
+
6
O
2
=
=
=
=
6
H
2
O
+
6
C
O
2
There are many chemical like the ATP and ADP that the cell uses to complete the process of photosynthesis and respiration but the raw materials are very simple.
What makes plastic bags are less harmful than paper bags
Select the correct temperature on the thermometer.
Identify the temperature that is equivalent to 95°F. Use this formula to convert the temperature:
T°c)=(T*)-32x
Explanation:
The conversion of Celsius to Kelvin: Kelvin = Celsius + 273.15. Instead of 273.15 the value of 273 is also used.
Answer:
35, I believe it was right
Describe one consequence of urban runoff and how it affects the ocean's role in the hydrologic cycle.
Answer:
“The increase in impervious or hard surfaces, including rooftops and pavement, decreases the amount of water that soaks into the ground, or infiltrates. This increases the amount of surface runoff.” notice many visible changes, includ- ing housing developments, road networks, expansion of services, and more.
Explanation:
100 POINTS!!!!
Reference the article on the first page to answer these questions:
https://www.pharmaceuticalonline.com/doc/the-potential-of-personalized-medicine-0001
1. Summarize the following points of the article. (2 points)
a) What is personalized medicine?
b) What areas of human health are likely to benefit from these new technologies?
2. How did the sequencing of the human genome change the way doctors are analyzing personal disease and risk? List the five points made in the article. (5 points)
3. What are the concerns of Dr. Ray Woosley regarding these new developments? (2 points)
4. You might be able to have your entire genome sequenced by a commercial company for less than $5,000 in the near future. Make a list of the potential benefits and concerns of genome sequencing. (3 points)
5. What are the five challenges to personalized medicine that are discussed in the article? ( 5 points)
6. Much of the research being done in this area is based on commercial products. The scientists performing the experiments are often employees of the company. Companies that are developing these new technologies hope to create products to be sold for profit. How does the involvement of commercial pharmaceutical companies influence the use of this and other new technology? (2 points)
7. The article states, “The number one concern that individuals have today is that information about past health or prediction of future health based on genetic tests may be used by a health insurance company to increase rates or deny healthcare coverage. Also, people are concerned that employers might use genetic information to make decisions about hiring, firing, and job assignments.”
a) Using at least two of the advantages or disadvantages discussed in the article, state your opinion about the use of the information contained in a person’s genome to treat disease. (4 points)
b) Do you think this new technology should be controlled or regulated? How would you address the potential for loss of genetic privacy? (2 points)
Answer:
1
A) A medicine that is personalized towards an individual's DNA.
B) These new technologies will be a benefit towards human health because they will be more effective and will not be as hazardous.
2) The sequencing of the human genome changed the way doctors are analyzing personal disease and risk because they are now able to diagnose the disease risk factors, provide better treatment for patients, determine which type of disease it is more accurately, how much of a dose of medicine the patient needs, and figure out genetic disorders.
3) He is worried that people might be moving too fast regarding these developments and wants them to proceed slowly and carefully so there is no room for error.
4) Some benefits would be protection from other certain diseases, I can fix any sort of genetic disorder, and order it so I can become stronger. However, I’m concerned that there will be risks in the sequencing process, which will change my genome for the worse.
5) Many potential biomarkers have yet to be verified and qualified for use, the FDA has yet to set a regulatory approval pathway for these products, the success of personalized medicine is contingent the ability of scientists and healthcare providers to capture, manage, store, and provide access to data and medical information, in order for personalized medicine to succeed, healthcare providers, patients, and insurers must learn how it works, and there are many privacy, confidentiality and fair-use concerns.
6 It could influence the use of these technologies because rather than focusing on helping people, they will only think about the money, leading them to do it carelessly and recklessly.
7
A) I think that using the information in a person's genome to treat disease is a good idea because it is much more effective in preventing disease and can fix any sort of genetic disorder much more easily.
B) I think this should be controlled. To address the potential for loss of genetic privacy, make it so that person gives their consent and you only take what is needed without having to look at the whole genome.
Explanation:
Hope this helps
Which solution is more diluted?
Solution 1:
1000 mL of water
60g of salt
Solution 2:
500 mL of water
60 g of salt
A. Solution 1
B. Solution 2
C. Both solutions have the same concentration
Answer:solution 1 is more dilute
Explanation:
60g/1000ml = 0.06g/ml
60g/500ml = 0.12g/ml
HURRY PLS HELP ONLY 1 MIN
What kind of a person should the loner be if he is to be worthy of his new name?
Answer:
British peopleexplain the history of Corona virus
Answer:
Scientists first identified a human coronavirus in 1965. It caused a common cold. Later that decade, researchers found a group of similar human and animal viruses and named them after their crown-like appearance. Seven coronaviruses can infect humans.
Explanation:
On the cellular level, what is meant by active transport?
Answer:
In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient.
Explanation:
I hope I helped
Identify, and briefly explain, two key elements needed for fossilization. Write your answer in the essay
box below.
PLS I NEED HELP ASAP!!!
Answer:
High pressure
Preservation.
Explanation:
Fossilization is the preservation of the remains of dead plants and animals in a sedimentary rock. When plants and animals are dead in an watery environment, the soft part decayed and the bones or shells remains and this form mold in sedimentary rocks.
High pressure help the bones , shells or remains of plants and animals to mineralize or undergo mineralization.
Preservation is when the remains are protected from oxygen to avoid corrosion and been eroded. There must also be an hard parts from fossilization to take place.
Answer:
One of the key things needed for fossilization is hard parts(bone, teeth, etc.), if there was not any hard parts there would not be a fossil because everything else decomposes quickly. Another key thing needed for fossilization is burial, if the organism was not underground it might be eaten by scavengers. Being buried also keeps it from decomposing quickly because oxygen cannot get to it.
Hope this helps! :D
Write the name of blood carpuscles?
Answer:
RBCs ( Red blood carpuscles )
WBCs ( White blood carpuscles)
An urgent help !!
If anyone of you have ever been to a Massage then plese answer my question that follows:
I have got an assignment to complete in my Biology chapter "muscles".
The assignment is:
Interview a person who have ever been to a Massage and ask them about how they felt while they were recieving the Massage.
Please anyone who have had a Massage, write down your experience in a paragraph.
Answer: The muscles feels relaxed as the massage improves the blood circulation in the muscles.
Explanation: The massage in the muscles aids in improving the blood circulation which helps in reducing the fatigue and stress in muscles.
It also in several problems of muscles such as muscle spasm, tenderness in muscles, et cetera.
Improved blood circulation in the muscles improve the oxygen content in it and also along with blood comes many nutrients which help the muscle cell grow better.
Muscle contraction also suppresses the nerves around them which results in many problems. But with the help of massage the muscles feels relaxed and the suppressed nerve associated with the muscle also gets relaxed with proper supply of nutrients.
Glucose break down during cellular respiration.
O True
O False
Answer:
glycolysis; cellular respiration
During the process ofglycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy releasedduring the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate). Encyclopædia Britannica, Inc.
Answer:
True
Explanation:
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.
hope it helps ☺️
which mutation is an example of an insertion mutation?
mRNA: AAU CCG CAU GGA
a AAU CCC CAU GGA
b AAU CCG CAG GA
c AAA CCG CAU GGA
d AAU CCG CAU UGG A
Answer:
d. AAU CCG CAU UGG A
Explanation:
A mutation is any change or alteration to the sequence of a gene. There are, however, different types of mutation depending on how it occurs in the gene. One of these types is INSERTION MUTATION as mentioned in this question. Insertion mutation is a type of mutation in which one or more nucleotide base is added to the sequence, hence, changing the reading frame of the original sequence.
In this question, the original mRNA sequence is given as: AAU CCG CAU GGA.
An insertion mutation will cause nucleotide base(s) to be added to this sequence, which will be noticed by an increase in number of bases in the sequence.
The correct answer is: AAU CCG CAU UGG A. In this mutated sequence, nucleotide "U" has been added to the sequence.
summarize the story of Zacchaeus
Answer: Zacchaeus was a dishonest man whose curiosity led him to Jesus Christ and salvation. Ironically, his name means "pure one" or "innocent" in Hebrew. Small in stature, Zacchaeus had to climb a tree to catch a glimpse of Jesus passing by. Much to his astonishment, the Lord called Zacchaeus by name, telling him to come down from the tree.
Explanation:
Answer:
Answer: Zacchaeus was a dishonest man whose curiosity led him to Jesus Christ and salvation. Ironically, his name means "pure one" or "innocent" in Hebrew. Small in stature, Zacchaeus had to climb a tree to catch a glimpse of Jesus passing by. Much to his astonishment, the Lord called Zacchaeus by name, telling him to come down from the tree.
Explanation:
What does the system of classifying things based first into broad categories, then into progressively more specific categories, describe? phonics taxonomy phylogeny statistics
Answer:
Did you get the answer?
Explanation:
please help
Answer:
taxonomy
Explanation:
Eukaryotes are found in ______ and ________.
Answer:
plants and animals
Explanation:
on edge
You spend three months in Chicago doing an internship and while there you try 30 different deep dish pizza resteraunts and the are all delicious. You conclude that all deep dish pizza is delicious. This is an example of _____reasoning.
Answer:
The correct answer is - inductive reasoning.
Explanation:
Inductive reasoning is the process that involves the specific reason or cases or observation to reach a conclusion. In this type of reasoning, specific cases are used to make a generalized principle. The conclusion which is made by this process known as conjuncture.
In the given case, a generalized conclusion or principle is made with the help of a specific case. Here reaching a conclusion that all deep dish pizza is delicious by the observation by trying 30 different deep-dish pizza restaurants and they are all delicious.
Seafloor spreading is taking place in the middle of the Atlantic Ocean.
Here the plates are......
Moving Past each other
Moving Towards each other
Moving away from each other
Crashing into each other
Answer:
Moving away from each other
Explanation:
Is the following a situation in which forces are balanced or unbalanced?
Your mom speeds up to beat a red light on the way to school.
Balanced
Unbalanced
Give reasons : a.) Diameter of afferent astride is bigger than efferent arteriole? b.) Urine is slightly thicker in summer than in winter c.) Always vasopressin is not secured? d.) Expand ESRD?
Answer:
a. Diameter of afferent astride is bigger than efferent arteriole to generate force for efficient filtration
b. Urine is slightly thicker in summer than in winter to reduce water loss from the body
c. Always vasopressin is not secreted when a person drinks sufficient water
d. ESRD stands for End stage renal disease
Explanation:
a. While transferring blood from afferent astride to efferent arteriole blood gets filtered. Filtration is efficient when the blood flows with force which is generated when blood flows from large arteriole to the small arteriole. Hence the diameter of afferent astride is bigger than efferent arteriole.
b. Urine is slightly thicker in summer than in winter to reduce water loss from the body. In summer water is lost in the form of sweat as well. Hence, urine gets concentrated to compensate for the lost body fluid.
c. Always vasopressin is not secreted when a person drinks sufficient water. The osmoregulation is maintained externally.
d. ESRD stands for End stage renal disease
The Select.......maintains the resting membrane potential in a neuron.
calcium channels
sodium-potassium pump
inactive transport
osmotic transport
Answer and I will give you brainiliest
Answer:
sodium-potassium pumpExplanation:
Hope it help mark as BrainlistAn adaptation or adaptive trait is a trait/characteristic that has evolved in a population of organisms which provides a functional advantage. Adaptations increase the biological fitness of a population. Fitness is defined as the ability to survive and pass genes on to subsequent generations. For the purposes of this assignment, you are to choose an adaptive trait common to more than one species. For example, birds and bats both have wings.
Write a 2-3 page (500 – 750 words, 12 point font) paper including the following elements.
a. Describe what makes this trait an adaptation. Briefly describe how the trait evolved; e.g., mutation, genetic drift, migration and/or natural selection.
b. What is the difference between homologous and analogous traits?
c. How does your trait of choice fit either of these descriptions?
d. What is convergent and divergent evolution?
e. Describe whether the trait is a result of convergent or divergent evolution.
On what are weather models based?(1 point)
A astronomy that describes how Earth's atmosphere changes
B physics that describes how air moves and heat and moisture are exchanged
C chemistry that describes how the different materials in the atmosphere interact
D physical science that describes how water changes state in the atmosphere
Answer: B
Explanation:
weather models based on physics that describes how air moves and heat and moisture are exchanged. Hence, option B is correct.
What are weather models?Models of the weather simulate the evolution of the atmosphere through time. The result of trillions of calculations using millions of observations as initial circumstances is a three-dimensional representation of what the atmosphere might look like in the future.
All weather models operate according to the same fundamental principles, resolving numerous intricate equations at varied locations both at the surface and in various layers (heights) of the atmosphere. These equations provide solutions for a wide range of variables, including temperature, dew point, wind speed, and many others.
Weather models are based on the law of physics. Thus, option B is correct.
Learn more about weather models, herehttps://brainly.com/question/23293975
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Question 6
Which curve represents the interaction between two nitrogen atoms?
Select one:
a. Curve A
b. Curve B
c. Curve C
d. It depends; more information needed
Question 7
Which atom pair forms the strongest bond?
Select one:
a. Cl-F
b. C-I
c. N-N
d. It depends; more information needed
Question 8
Which atom pair forms a bond with the greatest internuclear distance?
a. Cl-F
b. C-I
c. N-N
d. Can't tell; more information needed
Question9
T/F: Breaking the bond formed by atom pair C releases energy.
Select one:
a. True
b. False
Answer:
6.Carve A
7.CI-F
8.Can't tell; more information needed
9.true
