Biology College

What enzyme maintains a stock of ATP-G-actin for when the cell needs a burst of ATP-G-actin?

-Profolin

-Thymosin B-4

- ADF/cofilin

Answers

Answer 1

ADF/ cofilin enzyme maintains a stock of ATP-G-actin for when the cell needs a burst of ATP-G-actin. The correct option is C.

Thus, The dynamics of filament assembly are modified by ATP-binding on actin subunits, with ATP-binding often favoring intersubunit interactions and hence filament assembly .

While the rate of subunit loss is independent of the concentration of free ATP-G-actin, the rate of actin addition to filaments is dependent on it. Actin filament development occurs when the rate of addition exceeds the rate of dissociation at high concentrations of free ATP-G-actin.

Small, naturally occurring compounds called toxins, including as phalloidins, cytochalasins, latrunculin A, and jasplakinolide, attach to actin and change how it polymerizes.

Thus, the ideal option is C.

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Related Questions

Review the planning and leading of the sports activity session,
describing strengths and areas for improvement, and targets for future
development as a sports leader.

Explain targets for future development as a sports leader, including a
personal development plan.

Justify targets for future development as a sports leader and activities
within the personal development plan.

Answers

The above prompt is based on planning, and leading withing the context of sporting activities as well as leadership.

What are the strengths and areas for improvement, and targets for future development as a sports leader?

Duriing the planning review it was observed that there were very concise and clear instructions during the sporting activity session. This is is very critical for leadership. A leader must be able to communicate without ambiguity.

The personal development plan for a figure sports leaders can include but are not limited to:

Goal SettingFeedback requisition and analysisCoaching skills

The reason why is is imperative for a sport leader or any leader for that matter to have the above skills is because, one cannot afford to be blindspotted about their failiings with regard to leadership or communal goals.

One of the key responspoinsiblities of a sports leader is the ability to coach  and seeking feedback can help to enhance all the above processes.

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Calculate the air pressure gradient from Cincinnati to Atlanta. Show all work and label
properly.(5pt)

Answers

I’m not sure I’m so sorry :(

A double stranded molecule with the sequence shown here produces, in vivo, a polypeptide that is five amino acids long. TAC ATG ATC ATT TCA CGG AAT TTC TAG CAT GTA
ATG TAC TAG TAA AGT GCC TTA AAG ATC GTA CAT
i. Write the sequence of the mRNA transcript and label the strands.
ii. Write the sequence of animo acids produced if the translation of the gene occurs​

Answers

i. The mRNA transcript of the given DNA sequence is:

AUG UAC UAG UAA AGU GCC UUA AAG AUC GUA CAU

The top strand is the coding strand (also called the sense strand), and the bottom strand is the template strand (also called the antisense strand).

ii. The sequence of amino acids produced if the translation of the gene occurs is:

Met-Tyr-Stop

Answer:

Explanation:

i. The mRNA transcript sequence is:

AUG UAC UAG UAA AGU GCC UUA AAG AUC GUA CAU

The top strand (TAC ATG ATC ATT TCA CGG AAT TTC TAG CAT GTA) is the template strand or antisense strand, and the bottom strand (ATG TAC TAG TAA AGT GCC TTA AAG ATC GTA CAT) is the coding strand or sense strand.

ii. The sequence codes for the polypeptide Met-Tyr-Stop, assuming that the start codon is AUG and the stop codons are UAG, UAA, and UGA.

What stage of primary ecological succession is Surtsey Island today after its formation over 50 years ago?

Answers

Surtsey Island is in a stage of primary succession today after its formation over 50 years ago.

Thus, Surtsey Island is a volcanic island formed by the eruption of Iceland in 1963.  The island is then subjected to ecological research, which involves the study of the process of primary ecological succession, or colonization.

Over the past 50 years, organisms have colonized the Surtsey Island and established themselves in the new environment. The island is now in a stage of primary succession and diverse plant and animal species have colonized the island but have not yet reached their maximum potential in terms of growth and diversity.

Surtsey Island is in a stage of primary succession and currently dominated by grasses, sedges, and other herbaceous plants, as well as a variety of seabirds and marine mammals that have colonized the island's shores and surrounding waters.

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can data sets for other parameters that you could pick that might support either the tree ring or satellite data if they do not agree

Answers

Yes, data sets for other parameters that you could pick that might support either the tree ring or satellite data if they do not agree.

What is the parameters?

For case such as Soil dampness information: In the event that the tree ring information appears a decrease in development due to dry spell conditions, at that point soil dampness information might be analyzed to decide whether the locale experienced a dry spell amid that time period.

Lastly, Climatic CO2 information: In the event that the adherent information appears an increment in greenness, at that point air CO2 information may well be analyzed to decide whether the increment in vegetation is due to higher levels of CO2, which is known to advance plant development.

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3. Ceratopsians and ornithopods are both known for what trait? [1 pts]


4. Is the trait in question 3 a synapomorphy of the clade containing ceratopsians and
ornithopods, or is it an example of convergent evolution? [1 pts]

Answers

Ceratopsians and ornithopods are both known for being herbivorous dinosaurs.

Is the trait above a synapomorphy of the clade containing ceratopsians and ornithopods or is it an example of convergent evolution?

Given that ceratopsians and ornithopods have significantly different genetic codes, their adoption of herbivorous diets is not representative of a synapomorphy but rather indicative of convergent evolution.

Convergent evolution arises in situations where unrelated organisms adjust similarly to external pressures they experience. To satisfy dietary requirements, both creatures evaded predation by acclimating to an herbivorous lifestyle coincidentally.

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