You are curious about the dynamic instability of microtubules and decide to join a lab that works on microtubule polymerization. The people in the lab help you grow some microtubules using conditions that allow you to watch individual microtubules under a microscope. You can see the microtubules growing and shrinking, as you expect. The professor who runs the lab gets in a new piece of equipment, a laser beam that is very fine and can be used to sever microtubules. She is very excited and wants to sever growing microtubules at their middle, using the laser beam.

a. Do you predict that the newly exposed microtubule plus ends will grow or shrink? Explain your answer.
b. What do you expect would happen to the newly exposed plus ends if you were to grow the microtubules in the presence of an analog of GTP that cannot be hydrolyzed, and you then severed the microtubules in the middle with a laser beam?

Answers

Answer 1

Answer:

Follows are the explanation to the given points:

Explanation:

The polymerization of αβ-tubulin ligands costumes the microtubules. Among rising or reducing processes a microtubule may oscillate. Part of the carbon is a polar framework for two separate ends: a rapidly growing, most ending as well as a slow-growing less end.

In point a:

Severing a mitochondrial membrane throughout the media will create new "plus ends" or "minus ends." when mentioned in the question Then microtube is more prone to growth at most by adding GTP sub-units to some of the most open regions, where β-tubulin is activated. Even so, for some time GTP has also been hydrolyzed, keeping only one cap of the newly created, higher-end GTP-carrier subunits together with the remaining GDP-carrying cylindrical cap.

Consequently, a positive end is developed that consists of GDP subunits. Because the GDP sub-units become less strictly connected than that of the GTP sub-units, they eventually separate from one another. This allows a microtubule to be polymerized which causes the microtubule will shrink. But the newly exposed microtubule and sides will shrink if cut throughout the center.

In point b:

Well if the equivalent of GTP with such a microtubule is separated by laser from a non-hydrolyzable one, the newly exposed plus finish will include GTP carries. This GTP was NOT supplied with both the GDP kinase but would still expand the mitochondrial membrane. The unburned GTP plus microtubule will therefore continue to grow once it is cut in the center. The GTP equivalent is not hydrolyzable.


Related Questions

What are the correct genotype percentages?
OGG=25%, Gg=50%, gg=25%
O GG=0%, Gg=100%, gg=0%
GG= 75%, Gg=0%, gg=25%

Answers

You didn’t put in the full question with what you were given. I hope this helps show you how to answer the question. Sorry it’s messy

Consider that people with blues eyes must have two alleles for blue eyes since blue eye color is a recessive trait. A blue-eyed person and a brown-eyed person have an offspring with blue eyes. What must be true about the brown-eyed person?
a. they must have two alleles for blue eyes
b. they must have one alleles for blue eyes and one allele for brown eyes
c. they must not have the dominant brown eye allele
d. they must have two alleles for brown eyes

Answers

A.


Sana makatulong po yung sagot ko

Answer:

Full Connections Academy Quick Check

1. A version of a gene is called

allele

2. The trait for blue eyes in humans is caused by a recessive allele. If this gene is named capital e, what is the genotype of a blue-eyed person?  

ee

3. Describe the relationships among genes, dna, and traits.  

Traits are determined by genes, which are composed of dna.

4. In mice, the gene for tail length has two alleles. A long tail is dominant to a short tail. If a long-tailed mouse that is heterozygous mates with a short-tailed mouse, what are the chances of having offspring with short tails?

50%

5. What is meant by a phenotype ratio in a Punnett square?

The fraction of possible offspring that can be observed to have a trait

Explanation:

1.)Suggest why slow skeletal muscle fibres are small in diameter. 2.)The toxin curare was discovered in South America, where it was used to tip poison darts. It works by competing with acetylcholine for the receptors on the postsynaptic membrane. Predict the effect of curare on muscular contraction. Explain your answer.

Answers

Answer:

1, to strengthen the bone

2, I would say it causes them to tense up (contract)

what is the power house of the cell

Answers

Mitochondria!!!!!!!!!!!

hope this helps!

Answer:

mitochondria

Explanation:

its tbe power house cell

The second generation of a purebred cross of a h.o.m.o.zygous recessive organism, with a h.o.m.o.zygous dominant organism, contains a ratio of approximately ____ expressed dominant traits to recessive traits.
a. 1:1
b. 1:3
c. 2:1
d. 3:1

Answers

Answer:

d. 3:1

Explanation:

A purebred organism is an organism that contains identical alleles for a particular gene e.g rr or RR. According to this question, in a cross between a purebred dominant organism e.g RR and a purebred recessive organism e.g rr, each parent will produce R and r gametes respectively.

Using the gametes in a punnet square (see attached image), a heterozygous organism (Rr) will be produced in the F1 generation. If these heterozygous organism is self-crossed i.e. Rr × Rr, the following F2 offsprings will result;

RR, Rr, Rr, and rr.

RR, Rr and Rr will exhibit dominant traits while rr will exhibit recessive traits. This means that the F2 generation contains a ratio of approximately 3:1 expressed dominant traits to recessive traits.

Which of the following is most damaging to the ozone layer?
carbon dioxide
methane
O Oxygen
chlorofluorocarbons

Answers

Answer:

Chlorofluorocarbons...............

Answer:

chlorofluorocarbons

Explanation:

chlorofluorocarbons are mainly responsible for man-made chemical ozone depletion.

Biochemists working with proteins use a diverse set of treatments to analyze protein sequences. Denaturing agents unfold proteins. Some denaturing agents are reversible, and allow the proteins to be renatured after the procedure. A strong________ solution is a common reversible denaturant. Additional treatment with____________completely denatures proteins that contain disulfide bonds.

Answers

Answer:

Ethanol2-mercaptoethanol

See explanation below

Explanation:

Biochemists working with proteins use a diverse set of treatments to analyze protein sequences. Denaturing agents unfold proteins. Some denaturing agents are reversible, and allow the proteins to be renatured after the procedure. A strong ethanol solution is a common reversible denaturant. Additional treatment with 2-mercaptoethanol completely denatures proteins that contain disulfide bonds

A strong UREA solution is a common reversible denaturant. Additional treatment with 2-mercaptoethanol completely denatures proteins that contain disulfide bonds.

Denaturing reversible agents can alter the secondary/tertiary structure of a protein without altering its primary structure.

Urea is a reversible denaturant that breaks hydrogen bonds in the secondary structure of proteins without modifying the primary structure.

2-mercaptoethanol is a denaturing agent that cleaves disulfide bonds between cysteine residues.

In conclusion, a strong UREA solution is a common reversible denaturant. Additional treatment with 2-mercaptoethanol completely denatures proteins that contain disulfide bonds.

Learn more in:

https://brainly.com/question/14524069

What is the genotype of an organism?

A.
Its physical traits

B.
Its genetic make up (or DNA sequences)

Answers

geno is short for genetic make up dna

How fast was the toy car traveling if it went 275 ft in 25 seconds?

Answers

speed = distance/time
275/25 =11

Which test tube in the experiment best represents a normal stomach?

A. Protein + hydrochloric acid

B. Protein + pepsin

C. Protein + pepsin + hydrochloric acid < (I think?)

D. Protein + water

Answers

B) Protein + pepsin

Within the skeletal system, fat is commonly stored in the

Answers

Answer:

marrow

Explanation:

Additionally, the yellow marrow, which is found in the central cavity of long bones along with red marrow, serves as a storage site for fat.

The answer would be Bone marrow

What does relative humidity measure?

Answers

Relative humidity (RH) (expressed as a percent) also measures water vapor, but RELATIVE to the temperature of the air. In other words, it is a measure of the actual amount of water vapor in the air compared to the total amount of vapor that can exist in the air at its current temperature.

In comparison to the greatest amount of moisture that might be present at that temperature, relative humidity measures how much moisture is really in the air.

The amount of moisture in the air as compared to the maximum amount that might exist at given temperature is measured as relative humidity. It shows how saturated the air is with water vapour and is given as a percentage. A greater relative humidity signifies that the air is drier and is more likely to be approaching its maximum moisture-holding capacity than a lower relative humidity.

To know more about relative humidity, here:

https://brainly.com/question/32829742

#SPJ6

choose the correct one, please

Answers

Answer:

I believe it is called mitosis

Explanation:

Please help asap, I will give brainliest!!!
Define biodiversity and describe how biodiversity (the variety of life in a particular habitat or ecosystem) helps keep an ecosystem healthy.

Answers

Answer:

Biodiversity is a variation of organisms (plants, animals and bacteria) in the world or a specific habitat. Biodiversity helps to keep an ecosystem healthy because there is more variation of food and different organisms can rely on each other for survival. Also it offers a larger more reliable food chain and if one species is suddenly wiped out, it won't impact the ecosystem as much as it would if the biodiversity was smaller.

Explanation:

Why does the body use an RNA to leave the nucleus and give the message of the DNA to the ribosome?

Answers

ribosomes which make proteins are not found inside the nucleus but on endoplasmic reticulum and in cytoplasm. DNA creates RNA to do this job of leaving nucleus and delivering genes so that proteins are created.

What is the image
of the point (3, 1)
translated 8 units
left and 3 units
up?

Answers

Answer:

(-5,4)

Explanation:

cuz u take 3-8 witch gives u -5 and u do 3+1 witch gives u 4

also u can take the long way and count backwards from 3

Giving Everything!!!PLzzz help!!!
The process of transcription is known to have a less effective “proofing” stage to check the sequence of bases than does the process of DNA replication. What effect does this have on the base sequences produced by transcription?

A.Errors in the base sequences will result in a damaged strand of DNA.

B.The base sequences of mRNA can be exactly the same as those on DNA.


C. It is more likely that there will be more errors in coding base sequences in mRNA than there will be in DNA.

D. It is more likely that there will be fewer errors in coding base sequences in mRNA than there will be in DNA.

Answers

Transcription produces mRNA and dna replication produces DNA. If transcription has less effective proofing it will make more errors. These errors are mutations that can affect the eventual protein produced.

Therefore C: it is more likely there will be errors in the base sequence of mRNA ( the nucleotides that make it up) than in DNA.

Let me know if you have any questions!

Which of these forms when air moves in the directions shown by the arrows
in the diagram?


A. Sea breeze
B. Valley breeze
C. Mountain breeze
D. Land breeze

Answers

Answer:

D. Land Breeze

Answer:

its land breeze

Explanation:

1. The hypothalamus in the human brain is involved in thermoregulation of the body.
This organ has been compared to a thermostat that uses a negative feedback
mechanism to control the heating and cooling in a house. Explain whether or not this
comparison is accurate. Justify your response. (3 points)

Answers

Answer:

the character of myth story has been the subject in many cases since the early stages in which is magstorya and a man with an old friend and an e

Fill in the Blank Question
Fill in the blanks to complete the sentence.
The
nervous system controls skeletal muscle.

Answers

Answer:

The somatic nervous system is a component of the peripheral nervous system associated with the voluntary control of the body movements via the use of skeletal muscles

Explanation:

which of these is a Apdation for obtaining food.​

Answers

Answer:

A pleated woodpecker's bill

Explanation:

The bill is helping the woodpecker hammer the tree, which is how it gets its food.

where does an organism inherit its genetic instructions from

Answers

Answer:

Organism's parent.

Explanation:

Trait can be defined as the specific features or characteristics possessed by a living organism. It is essentially transferred from the parent of a living organism to her offspring and as such distinguishes him or her.

Simply stated, a trait refers to the distinguishing characteristic or quality of any living organism.

Some examples of traits in genetics are colorblindness, handedness, curly hair, height, complexion, weight, hair color, dimples, tongue-roll, etc.

For example, John is so tall and has a curly hair, it's obvious he acquired the trait from his mum.

In Genetics, a trait comprises of all the genetic instructions that are typically being transfered from the parent to their offsprings.

Hence, an organism inherit its genetic instructions from its parent.

You eat a candy bar. Your body breaks down this snack into its basic components, which includes sugar. In response to the sugar, the cells in the pancreas release a signal (insulin) to communicate with other body cells (muscle, liver, and fat cells) that this sugar should be stored for later use.

Which of the following is acting as the target cell in the example above?
1.insulin
2.sugar
3.liver cells
4.pancreas cells

Answers

I don’t know lemme guess
3. Liver cells
2. Insulin. Insulin targets the glucose, and tells the cell that it needs to store that glucose for later use in the form of fat. Hope that helps.

1/How many cups are in 3 and 1/2 gallons?

a. 52
b. 64
c. 48
d. 56
2/The amount of time it takes to cool, serve, eat and clean.

a. Total time
b. Serving time
c. Cooking time
d. Prep time
3/This is a set of instructions for preparing a food or beverage

a. Recipe
b. Procedure
c. Prep
d. Cooking Method

Answers

For number = D for number2=A For number 3=A

NEED ANSWERED NOW
what direction should the windows face on a passive solar house? ​

Answers

Answer:

Based on the movements of the sun, passive solar buildings typically have windows on the southern facing side of the property to better absorb the sun's heat energy and more easily warm the space in the Winter.

Explanation:

hope this helps have a good rest of your night :) ❤

Answer:

hi! this is just your daily reminder that you can do everything you put yourself to do no cap!!! :)

ps. your supperrr smart ÷ D


Which of the following BEST describes the recommended simple sugar intake for athletes?
A.Most athletes should eliminate all sugar from the diet.
B.Most athletes should keep sugar intake to less than 5% of total daily energy intake.
C.Most athletes should keep sugar intake to less than 10% of total daily energy intake.
D. Sugar should not be restricted in the athlete's diet because it provides a good source of carbohydrate for the working muscle.
.

Answers

Answer:

B

Explanation:

because sugar is common in food but he needs to limit it

1. What is a scientific investigation?

Answers

Answer:

A scientific investigation is a plan for asking questions and testing possible answers. A scientific investigation typically begins with observations. Observations often lead to questions. A hypothesis is a possible logical answer to a scientific question, based on scientific knowledge.

Explanation:

Why do you think fish would have more phosphorus than cows?​

Answers

Answer:

Because of their food.

Explanation:

Phosphorus can be found in foods (organic phosphorus) and is naturally found in protein-rich foods such as meats, poultry, fish, nuts, beans and dairy products.

their food ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎

Which is the significance of the tunica in plant growth? HINT: It's not B.


A. In the tunica, cell divisions are perpendicular to the stem axis, giving rise to thin layers of tissues covering the outside of the tip.


B. In the tunica, cell divisions are parallel to the stem axis, giving rise to thin layers of tissues covering the inside of the tip.


C. In the tunica, cell divisions are perpendicular to the stem axis, giving rise to thick layers of tissues covering the outside of the tip.


D. In the tunica, cell divisions are parallel to the stem axis, giving rise to thick layers of tissues covering the inside of the tip.

Answers

Answer:

D. In the tunica, cell divisions are parallel to the stem axis, giving rise to thick layers of tissues covering the inside of the tip.

Explanation:

Please help ASAP pleas

Answers

Answer:

Option c is Ur answer have a great day ahead

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