How is the formation of the spindle during mitosis and meiosis i different?

Answers

Answer 1
In mitosis spindle fibers from both centromsomes attach to each chromosome's centromere, in meiosis I the spindle fibers from only one centrosome attach to a chromosome's centromere. 

Related Questions

which one of these is not a reason that cells require the ability to diffuse materials across their membranes?


Answers

to move carrier proteins, am i right?

to move carrier proteins.

The atp synthase uses this gradient to restore adp back to atp. what is this process called?

Answers

The process is called OXIDATIVE PHOSPHORYLATION.
Oxidative phosphorylation is the process by which a free phosphate ion is added to ADP in order to produce ATP. This process take place in the mitochondrion and is a major source of energy for anaerobic organisms. The free phosphate ion is usually transferred from NADH or FADH2.
Final answer:

ATP synthase uses a proton gradient to restore ADP to ATP in a process known as chemiosmosis, which takes place during oxidative phosphorylation.

Explanation:

The process by which ATP synthase uses a proton gradient to restore ADP back to ATP is called chemiosmosis. This occurs during oxidative phosphorylation, a key part of cellular respiration where the energy stored in the electrochemical gradient, developed due to the movement of protons (H+), is utilized. As protons flow through ATP synthase, much like water flowing through a turbine, they provide the energy needed for the enzyme to catalyze the production of ATP from ADP and inorganic phosphate (Pi).

Choose the appropriate term to fill in the sentence: when mrs. m ate, her intestinal contents became __________ to her blood. her blood became __________ to her intestinal contents.

Answers

The answer to this question would be: hypertonic, hypotonic

After eating, the intestine is filled with food that will be digested. Food that digested will turn into a much smaller unit of carbohydrate, amino acid and fatty acid that will cause the intestine to have hypertonic solution compared to the blood. This will induce diffusion of some molecule to the intestinal cell, and then to the blood.

Analyze this case in which the patient record states:40 year old male patient (new) is evaluated for contusion of a finger. the history and examination were problem focused.

Answers

Finger contusion can be characterized by bruising of finger, where there is swelling and bleeding under the skin but no broken bones.

1. Diagnosis and Management:- Contusion of finger is diagnosed by the symptoms such as pain, swelling, discoloration, tenderness and difficulty in movement. Sometimes numbness is associated as swelling compresses the nerves in that region.X-ray (If required CT scan0 can be done to confirm the diagnosis and rule out fractures and other serious forms of injuries.

Depending upon the severity, treatment is decided. The contusion is managed with an aim to reduce pain, swelling and restore the movement. The options so as to treat the contusion, based on its severity are as follows

a. Applying Icepacks and keeping the finger propped up above the heart level.

b. Splinting and taping

c. Physiotherapy

d. Ultrasound therapy

e. Surgical treatment is required in case of torn ligaments.

These options of treatment are accompanied with over the counter pain killers and anti inflammatory drugs

 

A person who is highly tolerant to _____ creates problems for anesthesiologists in surgery.

Answers

A person who is highly tolerant to barbiturates creates problems for anesthesiologists in surgery.

How can surveying reading material improve your comprehension?

Answers

Surveying is one of the reading techniques which one can use in order to quickly determine the content of a written document.
Surveying involves taking a broad look at a text by focusing on the general aspects in order to determine the relevancy and the value of the text, that is, to know whether it is worth reading or not.
Surveying helps comprehensions by bring to focus the general aspect of the text such as title and introduction. Understanding the general aspects of the text will greatly enhance one's understanding when one is reading for details.


The structure of hair is formed by keratin. Keratin is most likely which of the following polymers?

Answers

tbe answer is protein.

Answer:

Keratin is a protein.

Explanation:

Keratin is a fibrous protein that has the characteristics of rigid conformation, elasticity and impermeability to water. It has animal origin and is found in the vertebrate epidermis and in some epidermal appendages, such as hair, nails, hooves, feathers and scales. This protein is produced in cells called keratinocytes, which are the most abundant in the human epidermis.

Like any protein, keratin is made up of amino acids. It has a large amount of cysteine residues, which is responsible for 7% to 20% of the total amino acids present in keratin. Note that cysteine is mainly located in the terminal region of the keratin chains.

The creature in the photograph is a protist, which is composed of only one cell. This means that a protist A) cannot reproduce. B) is a living organism. Eliminate C) cannot survive in water. D) gets energy directly from sunlight.

Answers

The answer to this question would be: B) is a living organism

Protist can reproduce by dividing its cells. The organism also can survive in water. In fact, water was vital for the most organism and water depletion can cause the cell to die. The protist doesn't mean it gets energy directly from sunlight. It was a producer that can produce energy from sunlight.

Answer:

B) is a living organism.

Explanation:

All living organisms must have 8 treats or characteristics to be called living things:

cellular organizationreproductionmetabolismhomeostasisheredityresponse to stimuligrowth and developmentadaptation through evolution

These eight characteristics are what make something a living thing, since the protist is made out of a cell, which has all of this characteristics, we can assume is a living organism, the other options could be truth, but we do not have enough information to say if they are or they aren´t true.

Which organelle is made of a phospholipid bilayer? A. cell wall B. cytoplasm C. ribosome D. cell membrane

Answers

That would be, D. Cell membrane
The answer is D Cell membrane because the rest don't have that

The ara operon is controlled by a regulator protein that exerts ________.

Answers

AraC protein certain to the ara operator works as a repressor that avoid transcription of the same ara operon and the araC gene AraC protein is an activator in the presence of arabinose and repressor in the absence of arabinose -With arabinose absent, the AraC protein stays as
a homodimer. One AraC protein put together to the ara initiator and the other protein now binds to a different regulatory site in DNA called the ara operator.

Which of the numbered features is a lateral moraine?

Answers

Uhhh well you didnt list any of them so here is this. 

Lateral moraines are a product of rock fall onto the margin of a glacier. Rock fall is a result of frost weathering of the rock wall and of over-steepening of the cliff by glacial erosion, leading to rock slope failure. The rock debris is carried along the glacier edge as it moves towards the snout.

hope this helps.

Which meninx surrounding the central nervous system contains blood vessels that nourish the neural tissue?

Answers

The pia mater is a delicate membrane and is one of the three meninges found in mammals and is responsible for nourishing neural tissue such as the brain. Blood vessels that go through the pia mater extend to capillaries that transport blood to the brain.

Anton thinks that glucose is a reactant of photosynthesis, but his classmate Jamila disagrees. Who is correct, and why?

Anton is correct because glucose is a substance that is present before the chemical reaction of photosynthesis takes place. 
Anton is correct because glucose is a substance that is formed from the chemical reaction of photosynthesis.
Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Jamila is correct because glucose is not involved in the chemical reaction of photosynthesis.

Answers

Answer: Jamila is correct because glucose is a product, not a reactant, of photosynthesis.

Photosynthesis is a chemical reaction that occurs in plants which produce their food in the form of glucose by trapping the light energy from sun and using reactants such as carbon dioxide from the atmosphere and water. This process occurs in the leaf cells of the plants.

On the basis of the above information, this can be concluded that Jamila is correct because glucose is a product, not a reactant, of photosynthesis.

Answer:

Answer: Jamila is correct because glucose is a product, not a reactant, of photosynthesis.

Explanation:

I just finished the test :D

One would expect to find this protein involved in the elongation of bacillus anthracis to form its typical shape

Answers

The protein involved in elongation of Bacillus Antrasis to form its typical shape is called FtsZ.
FtsZ is a GTpase that polymerises in nucleotide dependent manner head to tail to form a single stranded filaments that assemble into a contractible ring.
Final answer:

The protein involved in the elongation of Bacillus anthracis to form its typical shape is unknown. However, the shape of a protein is critical to its function.

Explanation:

The protein involved in the elongation of Bacillus anthracis to form its typical shape is unknown. However, the shape of a protein is critical to its function. For example, in the process of biological nitrogen fixation, the carrier protein leghemoglobin binds with a very high affinity to its substrate oxygen at a specific region of the protein where the shape and amino acid sequence are appropriate. If the shape or chemical environment of the active site is altered, the substrate may not be able to bind as strongly or not bind at all. Thus, for the protein to be fully active, it must have the appropriate shape for its function.

Given a template strand of 3'-atgcttggaca-5' and a partially-made complementary strand containing only 5'-tac-3', what would be the sequence of the new strand of dna (including the 5'-tac-3') if the only additional nucleotides available to dna polymerase were those containing the bases g, a, and c?

Answers

A complementary strand is complementary to the template strand when in the opposite direction, in this case 5'-3', the nucleotides that it contains are complementary to those of the template strand. Thus, the partially-made complementary strand 5'-TAC-3' will bind to the template strand starting on the 3'-ATG-5' portion. Then it is elongated by the DNA polymerase only up to the next nucleotide A, not included, because its complementary nucleotide is T which is not available. So, the sequence of the new strand on DNA would be 5'-TACGAACC-3'.

A hypothetical poison prevents nucleoli from carrying out their functions. Which organelles would be affected by this poison? What would the cell be unable to do? Explain.

Answers

THe answer to this question would be: ribosome.

Ribosome function is in protein synthesis. To do synthesis a protein, it will need an RNA with a specific structure. The RNA is made from the nucleus, so if nucleus can copy their DNA into RNA, the protein synthesis will not be able to be executed. 

compare the productivity of terrestrial and aquatic ecosystems against the percent of Earth’s surface area they occupy.

Answers

The 6 terrestrial ecosystems are tundra, taiga, temperate deciduous forest, tropical rain forest, grassland, and desert, these are distinguished from aquatic ecosystem by the limited supply of water. The two types of aquatic ecosystems are marine and freshwater.

Terrestrial productivity is more effective in the wet tropical climates as the net primary productivity decreases between equatorial and polar regions due to less sunlight and therefore there is a temperature decrease. Global productivity is limited by factors of water and sun, as most ecosystems rely on photosynthesis and water. Marine productivity tends to be higher, as rivers and water carry more nutrients and deposit them in other ecosystems. The most productive regions are areas such as wetlands and estuaries. i hope this helps!

15 POINTS! 

Study the diagram, which represents the general equation for photosynthesis. What do the letters Y and Z represent?

Y - glucose
Z - oxygen

Y - glucose
Z - carbon dioxide

Y - carbon dioxide
Z - hydrogen

Y - carbon dioxide 
Z - oxygen

Answers

Answer:

The correct answer is Y - glucose, Z - oxygen

Explanation:

In photosynthesis, plants- and also other organisms- take carbon dioxyde (CO₂), water (H₂O) and light (which is absorbed by chlorophyll pigments, those give plants their green color), and they convert inorganic materia in organic materia (chemical energy) in form of sugar. The overall process is described by the following global equation:

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

carbon dioxide + water → glucose + oxygen

In the diagram, the equation is:

carbon dioxide + water + sunlight → glucose + oxygen

Answer:

The correct answer is A.

Explanation:

Y represents Glucose, a product of cellular respiration. Z represents Oxygen, which is also a product of cellular respiration.

(CO2 + Water + Sunlight = Glucose and Oxygen)

Hopefully, this helps! :D

Ask your question down below!

The fat located under the skin is called ________ fat.

Answers

The fat located under the skin is called subcutaneous fat. 

Answer:

subcutaneou

Explanation:

subcutaneou

Can i have brainly pls

NEED HELP! Will mark brainiest, heart, 5star, anything!

Question 1
The cell cycle is a repeating series of events that include growth, DNA synthesis, and cell division.

A.True
B. False

Question 2
During which stage of the cell cycle does the cell condense chromosomes and break down the nuclear envelope?

Anaphase
Interphase
Metaphase
Telophase

Question 3
Which is the third stage of mitosis?

Anaphase
Interphase
Metaphase
Telophase

Question 4
How is cytokinesis different in animals and plants?

Animal cells get pinched into two daughter cells by the cell membrane; the plant cell has to form a cell plate before it can create daughter cells.
Animal cells give daughter cells a full set of chromosomes at the time of division; plant cells give daughter cells a half set of chromosomes.
Animal cells require an extra growth phase before cytokinesis; plant cells move straight to cytokinesis.
Animal cells begin cytokinesis during anaphase; plant cells begin around the same time as telophase.

Question 5
During which stage of interphase does the cell grow to nearly its full size?

First gap
Second gap
Prophase
Synthesis

Question 6
Which of the following is one stage of the cell cycle?

Cellular respiration
Mitosis
Multiplication
Photosynthesis

Question 7
Explain why it is important for daughter cells to have a full set of chromosomes. Use complete sentences.


Answers

question 1 is true 
question 2 Interphase 
question 3 Anaphase
question 4
question 5 Synthesis
question 6 Cellular respiration
question 7
Question 1
The cell cycle is a repeating series of events that include growth, DNA synthesis, and cell division.TRUE.

Question 2
During which stage of the cell cycle does the cell condense chromosomes and break down the nuclear envelope?Telophase.

Question 3
Which is the third stage of mitosis?Anaphase.

Question 4
How is cytokinesis different in animals and plants?The most observable difference is the way in whichcytokinesis occurs. In plants a new cell wall is fashioned between the new daughter cells, while inanimal cells the cell membrane constricts to pinch the parent cell into daughter cells.

Question 5
During which stage of interphase does the cell grow to nearly its full size?First gap.

Question 6
Which of the following is one stage of the cell cycle?Mitosis

.Question 7
Explain why it is important for daughter cells to have a full set of chromosomes. Use complete sentences.In some living organisms, asexual reproduction occurs by many means: b1inary division, schizogony, budding, grafting, etc. In the asexual reproduction of eukaryotes, mitosis is the mechanism by which the cells that make up the new organisms are produced.

The term mitosis does not apply to prokaryotes since, it involves nuclear division and eukaryotic structures.





Most enzymes in living things are made up of
1. Carbohydrates
2. Lipids
3.Proteins
4. Nuclear acids
Someone please help me with this as soon as you can!

Answers

Most enzymes are proteins

Answer:

3. Proteins

Explanation:

Enzymes are naturally occurring groups of organic substances of protein origin (they can be form by 62 amino acid residues, such as 4-oxalocrotonate tautomerase enzyme monomer to 2500 residue size) with intra or extracellular activity that have catalyst functions. This is achieved by lowering the activation energy to allow a chemical reaction, resulting in an increased reaction speed and allowing the metabolism of living things. Importantly, although most enzymes are proteins, there are also enzymes consisting of RNA as ribozymes.

The ____________ contains vertically arranged maculae that would provide feedback of body movement in the vertical plane

Answers

"The saccule contains vertically arranged maculae that would provide feedback of body movement in the vertical plane."

The saccule is a group of sensory cells that's in the inner ear. When there head movements that are in the vertical plane, these cells in the macula are disturbed from their position and inform the connecting neurons that movement that's taking place. This information is taken to the vestibular nuclei.

The membrane potential exists mainly due to ________ channels.

Answers

I believe it is resting potassium channels also known as leak channels... But, I could be wrong.

I hope this helps! 
It is the leak channels

The cytoskeleton is an internal scaffolding used for cellular movement true or false

Answers

it's true :)))))))wooo woo

Year-old fell on broken glass and required suturing of a laceration. due to age and combative behavior of the patient, the physician utilized moderate sedation while repairing the laceration. the physician gave the child 50 mg of ketamine im. a nurse monitored the patient during the procedure which took 30 minutes. what cpt® code is reported for moderate sedation?

Answers

What is clear here is that sedation was provided by a physician or other qualified health care professional. Read at the CPT Coding Changes For Moderate Sedation in 2017. It states there will be several codes for moderate sedation. Your statement of the case is not complete, as age is important. The codes for moderate sedation is 99151 to 99157.

Which of these choices is a benefit of using only nonpolluting sources of electricity?
A. Higher electricity prices
B. Healthier ecosystems
C. Loss of jobs
D. More-expensive clean technologies

Answers

B. Healthier ecosystems. If you're talking about benefits, this is the only positive on this list. The others are listing the difficulties or downsides.

Answer:

healthier ecosystems

Explanation:

ape.x

What precautions should be taken when constructing masonry walls in minneapolis in the winter?

Answers

Following precautions should be taken when constructing;

1)      Contractors should know about the temperature on the work site.

2)      The unsatisfactory decision of safety measure strategy will crumple the particular undertaking quality.

3)      There should be the availability of LP gas heaters and blowers.

4)      Temporary workers can likewise pick poly fenced in area installed with platform frameworks firmly.

5)      Warmth conveying punctured texture tube running under platform will be utilized.

6)      There should be the utilization of dry mortar rather than wet mortar in winter season.

7)      Quick setting mortar or cement Mortar setting admixtures can be utilized.

8)      Wind should be above 25mph in wind barriers and the temperature that is required is below 25 degree.

Arabinose is a monosaccharide that
e. coli can use as an energy source. when both glucose and arabinose are present in the media,

Answers

When glucose and arabinose are present in the media

The offspring produced between the mating of a tiger and a lion, a liger, which is unable to reproduce, is an example of which form of reproductive isolation?
a. temporal isolation
b. behavior isolation
c. hybrid infertility
d. gametic isolation
e. hybrid inviability

Answers

Final answer:

Ligers, offspring of a tiger and lion mating, exhibit hybrid infertility due to hybrid sterility, which is a type of postzygotic reproductive isolation preventing them from reproducing.

Explanation:

The offspring produced between the mating of a tiger and a lion, a liger, which is unable to reproduce, is an example of hybrid infertility. Specifically, this is a case of hybrid sterility, which is a form of reproductive isolation that occurs after fertilization, resulting in a hybrid that is not capable of reproducing. Thus, the correct answer is c. hybrid infertility.

What changes would you recommend to permit expression of this eukaryotic gene in a bacterial cell?

Answers

Gene Expression is the progression wherein the information from a gene is used in the combination of a functional gene product. In eukaryotic cells, genes are delimited by repressors as well as by transcriptional activators. The repressors will muddle to the specific DNA sequences and will constrain transcription.

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