during which checkpoint would damaged or improperly replicated dna halt progression through the cell cycle?

Answers

Answer 1

Answer:

G2/Growth 2 phase

Answer 2

Answer:

When a cell's DNA is damaged, a sensor protein activates p53, which halts the cell cycle at the G 1start subscript, 1, end subscript checkpoint by triggering production of a cell-cycle inhibitor. This pause buys time for DNA repair, which also depends on p53, whose second job is to activate DNA repair enzymes.


Related Questions

Help with 1 and 2 plz make sure it’s right will mark brainiest

Answers

The answer should be
1. C
2.D

In 3–5 sentences, explain how genetic modification helps provide food for a growing population.

Answers

Given what we know about genetics, we can confirm that genetic modification helps provide food for a growing population by allowing us to create faster-growing crops that yield more.

What is genetic modification and how can we use it?Genetic modification, in simple terms, is when a scientist affects the genetic code of an organism to bend it towards our specific desires. This can be very dangerous and is very controversial in some cases. However, it can also be very beneficial in terms of food supplies. Gene modification can be used to create crops that will take less time to grow, and grow into bigger foods, allowing us to feed more people.

Therefore, we can confirm that gene modification helps provide food for a growing population by forcing crops to be more efficient and feed more people.

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explain how the body establishes a pressure gradient for fluid flow.

Answers

Answer: refer to, uofmhealth.org/health-library/tx4097abc

Explanation:

you should find your answer there

hans and zacharias janssen contribution to cell theory

Answers

Answer:

1590’s

What year did Hans and Zacharias Janssen contribute to the cell theory? Hans and Zacharias Janssen are known for inventing the compound optical microscope. They made it in the 1590’s. This contributed to “The Cell Theory” by making it easier and more practical whilst observing cells.

Explanation:

Cell theory states that all biological organisms are made up of cells, which is the structural and functional unit of life.

Scientists Hans and Zacharias Janssen invented the compound microscope that played a vital role in observing cellular functions.

Hans and Zacharias Jansen invented the compound microscope, which consisted of the eyepiece and an objective lens.

The scientists discovered the compound microscope in the late 16th century, which then helped many scientists to magnify and observe the microscopic structures.

Thus, the Janssens discovered the compound microscope.

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14. What are the two compartments of the forearm and how do they differ?

Answers

Answer:

The anterior compartment is known as the flexor compartment since the muscles primarily function to flex the wrist and digits. The anterior compartment consists of a deep and superficial layer. The superficial compartment contains the pronator teres, the flexor carpi radialis, and the flexor carpi ulnaris.

why is it advantageous for cells to switch to anaerobic fermentation in the absence of oxygen

Answers

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How cells extract energy from glucose in the absence of oxygen. In yeast, anaerobic reactions produce alcohol, while in your muscles, they form lactic acid.

it is advantageous for cells to switch to anaerobic fermentation in the absence of oxygen because Anaerobic processes in yeast produce alcohol, whereas they produce lactic acid in your muscles.

What is anaerobic fermentation?

Generally, Once the oxygen is removed from the fermentation vessel and replaced with N2, CO2, etc of the fermentation, anaerobic fermentation begins.

In conclusion, Anaerobic processes in yeast produce alcohol, whereas they produce lactic acid in your muscles.

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since dna is replicated semiconservatively, what does each new daughter cell receive from the parent cell after replication and mitosis?

Answers

Answer:

the exact same organelles from the parent

Explanation:

what is the material salad spinner​

Answers

Answer: its made of plastic

Explanation:

Answer:

salad spinners are usually made from plastic

Please help me! " Section 1 Biodiversity (continued)

Main Idea

Details

Summarize why species should be preserved as a possible source

of useful genes.

The Importance

of Biodiversity

I found this information

on page

Medicine

Agriculture

Organisms that

might have value

include

These organisms

someday might be

useful as

Identify resources and services that a healthy biosphere provides to

people.

Services

Resources

1.

1.

2.

2.

3.

3.

4.

4.

Organize how humans are dependent on plants and animals by

describing two ways that you use products of each.

Products of Animals

Products of Plants

Copyright © Glencoe/McGraw-Hill, a division of The McGraw Hill Companies, Inc.

SUMMARIZE

Explain how the health of the biosphere impacts the health of people.

Answers

Answer:Plants and animals maintain the health of an ecosystem. When a species becomes endangered, it's a sign that an ecosystem is out of balance. ... The conservation of endangered species, and restoring balance to the world's ecosystems, is vital for humans, too.

Explanation:

please helpppp

Drag the tiles to the correct boxes to complete the pairs.


What is the function of each lymph organ?

Answers

Explanation:

The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins, as well as the introduction into the systemic circulation of various objects (small and large molecules, liquids, infectious agents, etc.), packed in delivery vehicles - exosomes and vesicles

The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins.

What is lipoprotein?

Particles called lipoproteins are comprised of protein and fat (lipids). They deliver cholesterol to your cells through your bloodstream.

High-density lipoprotein, or "good" cholesterol, and low-density lipoprotein, or "bad" cholesterol, are the two main categories of lipoproteins.

LDL comes in the form of lipoprotein. These lipoproteins transport cholesterol to the artery cells. High levels of LDL particles can cause cholesterol to accumulate in your arteries and create blockages known as plaques. The term "hardening of the arteries" or atherosclerosis refers to this condition.

Therefore, The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins.

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NO G00GLE PLEASE <3

Define cell ​

Answers

Answer:

Cell is the fundamental intergral unit of life. It give rise to an organism, it's specialization allows complex or simple functions to occur within a body of an organism.

discuss the functions and deficiency symptoms of phosphorus​

Answers

Answer:

Functions of phosphorus in the body,

i) Formation of bones and teeth. It's a component necessary for forming strong bones and teeth in the body.

ii) It's important in helping to make protein in the body for growth. Since many proteins in the body are phosphorylated for regulating their functions.

iii) Activation of enzymes. This done through phosphorylation.

iv) Gene transcription. It provides structural importance to the gene and protein binding is by the presence of phosphorus.

Deficiency of phosphorus in the body;

i) Weak and fragile bones.

ii) Bone pain.

iii) Fragile teeth.

iv) Stiff joints.

how does plant mitosis accommodate a rigid inflexible cell wall

Answers

Answer:

mitosis animal y vegetal son dos tipos de divisiones nucleares reproductivas en animales y plantas, respectivamente. Durante la mitosis, la cantidad de material genético permanece igual. Por lo tanto, aumenta el número de células en el cuerpo durante el crecimiento, la reparación y la regeneración. La mitosis ocurre en cuatro pasos principales; Profase, metafase, anafase y telofase. los diferencia principal Entre la mitosis animal y la mitosis vegetal es que el huso mitótico en la mitosis animal se forma con la ayuda de dos centriolos, mientras que el huso mitótico en la mitosis vegetal se forma sin ningún centríolo. La mitosis es seguida por citocinesis

Explanation:mira  

when did hans and zacharias janssen contribute to the cell theory

Answers

1595 Zachariah’s Jansen was a Dutch spectacle maker from middleburg son to hand Jansen .

What are latent prints?

Answers

Explanation:

Latent prints are formed when the body’s natural oils and sweat on the skin are deposited onto another surface. For example if you put your thumb on your glass you will see that the oils will put your fingerprint there

In basidiomycete fungi, where specifically do nuclei from parents combine to make offspring spores

Answers

In basidiomycete fungi, the nuclei from parents combine in the BASIDIA to make offspring spores. Basidia are microscopic structures but they are generally produced on large fructifications known as fruit bodies.

A basidium is a sporangium localized on the hymenophore of the fruiting bodies in basidiomycete fungi.

In basidia, the nuclei of two parental strains fuse by karyogamy and then divide to reproduce basidiospores.

A basidium generally contains four sexual spores known as basidiospores.

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Poultry products are a likely source of infection by:

Answers

Poultry products are a likely source of infection by Salmonella enterica

which causes typhoid.

Most farm animals such as pigs, cattle and poultry have been found to be

infected with Salmonella enterica as a result of their contact and exposure

to a dirty environment.

This is why it is advisable to apply much heat on poultry products such as

eggs to kill the micro-organism.

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The word matrix can be used to describe things shaped In a pattern of lines and spaces. How does this relate to a mitochondrion?

Answers

The definition of the word matrix can be applied to the organelle known as mitochondria given that the mitochondria have what is known as a "mitochondrial matrix".

The mitochondria are amongst the most important organelle of a cell. They are responsible for the production of energy molecules in the form of ATP. The basic structure of mitochondria consist of:

Outer membraneIntermembrane spaceInner membrane MatrixGranules

and contain even more elements within.

The inner membrane of the mitochondria surrounds the matrix, giving it the form of a pattern of lines that bend and curve, leaving spaces in between. The similarity between this shape and the definition that is given of the word "matrix", explains why this structure may have been given the name of the mitochondrial matrix.

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A change in pH has the greatest impact on which life proces

Answers

Answer:

Aquatic Organisms

If the pH of water is too high or too low, the aquatic organisms living within it will die. pH can also affect the solubility and toxicity of chemicals and heavy metals in the water ¹². The majority of aquatic creatures prefer a pH range of 6.5-9.0, though some can live in water with pH levels outside of this range.

Explanation:

Adding more OH- ions increases the pH, making the substance more basic. Increasing the pH will increase the number of OH- ions, so the equilibrium will shift to the left. Decreasing the pH will increase the number of H3 O+ ions; they'll ''use up'' the OH- ions, thus shifting the equilibrium to the right.

How do cells make energy?

Through photosynthesis.
Through the breakdown of macromolecules.
Through exercise.
Through the production of methane.​

Answers

Answer:

through the break down of macromolecules

The answers is b
Through the breakdown of macromolecules

the glenoid fossa is rimmed by the fibrocartilaginous

Answers

Answer:

glenoid labrum.

Explanation:

The glenoid fossa is rimmed by the fibrocartilaginous

what will happen to a population of organisms that are in an oxygen rich environment. (Double click the story board to draw on it)​

Answers

Answer

I'll assume this means adding additional oxygen to the atmosphere.

Paper airplanes now fly farther. With all that extra air, the air pressure near the surface increases significantly. Gliders, parachutists, birds and paper-plane hobbyists enjoy greatly improved performance.

Everyone gets better gas mileage. Oxygen-enriched air improves engine performance by producing hotter reactions and reducing the proportion of nitrogen, which reduces heat transfer (Page on Energy.gov)

Higher elevation Biomes become inhabited by more vertebrates. Areas such as the high Himalayas or high Andes are no longer off-limits to animals without special adaptations to increase their levels of hemoglobin.

Insects of unusual size. Many insects rely on gaseous diffusion to for respiration, therefore the maximum body size depends on the proportion of oxygen gas in the atmosphere. Most bugs get bigger, some smaller (see Atmospheric oxygen level and the evolution of insect body size)

Everyone feels more alert, active, and happier. All that fresh oxygen improve our cognition, alertness, and physical performance. As a result, most athletic records would likely be broken by oxygen-enriched athletes.

We get sick less often. Neutrophils, soldiers of the immune system, destroy bacteria by using NADP oxidase to pump ions into, and disrupt, intruding cell's membranes causing rupture. More oxygen, more oxidase. (Page on Nih.gov)

We die younger. Free radicals (i.e. O2-) are thought to exacerbate the aging process through Oxidative stress, which interferes in numerous cellular processes: protein production, DNA replication, intercellular communication, and are also thought to contribute to MS, Alzheimers, Parkinsons, and a host of other ailments.

Explanation:

Which statement about cystic fibrosis is true?
A.) Cystic fibrosis is caused by a deletion of one codon in the DNA molecule.
B.) Cystic fibrosis affects a person's ability to make normal red blood cells.
C.) Carriers have an advantage over people who do not have the cystic fibrosis mutation.
D.) Cystic fibrosis is caused by a mutation in which a dominant allele replaces a recessive allele.​

Answers

Answer:D

Explanation:

It only make sense.

list three ways that organisms use energy

Answers

Answer + Explanation:

Organisms use energy to survive, grow, respond to stimuli, reproduce, and for every type of biological process. The potential energy stored in molecules can be converted to chemical energy, which can ultimately be converted to kinetic energy, enabling an organism to move.

Directions: determine if the statement is true or false. If false, correct the statement to be true.

Answers

1. true

2. true

3. false

4. false

5. true

Explanation:

maaf kalau salah

A student observed several cell layers positioned on top of one another in the high-power field of view of a compound light microscope. To observe the details of only one of these cell layers, the student should

Answers

Answer:

rotate the fine adjustment

WHAT IS MEDIAN??????????????​

Answers

Answer:

The middle value in a set of numbers arranged in increasing order. If there is an even number of values, then median is the average of the middle two values.

In anatomy (as your question is marked Biology), the median is situated in the middle; central, intermediate.


Please help




I don't know which one is the answer :(​

Answers

Answer:

I believe that your answer is C.

Explanation:

Keep in mind that Steve is working with crops (wheat specifically) and Devan has helped him repair his machinery so that Steve can harvest the wheat properly.

why do you think it is important to understand chemistry and chemical cycles? Write at least 5 sentences.

Answers

Explanation:

Image result for why do you think it is important to understand chemistry and chemical cycles

Chemical cycling plays a large role in sustaining planetary atmospheres, liquids and biological processes and can greatly influence weather and climate. Some chemical cycles release renewable energy, others may give rise to complex chemical reactions, organic compounds and prebiotic chemistry.

Chemical reactions help us understand the properties of matter. By studying the way a sample interacts with other matter, we can learn its chemical properties. These properties can be used to identify an unknown specimen or to predict how different types of matter might react with each other

Answer:

Chemistry is essential for:

1. meeting

2. our basic needs of food,

3. clothing,

4. shelter,

5. health,

6. energy,

7. clean air,

8. water,

9. soil.

Knowing something about chemistry is worthwhile because it provides an excellent basis for understanding the physical universe we live in. For better or for worse, everything is chemical!

Explanation:

Hope it helps you

What do adenine, ctyosine, guanine, thymine, and uracil have in common

Answers

Adenine and guanine have a fused-ring skeletal structure derived of purine, hence they are called purine bases. ... Similarly, the simple-ring structure of cytosine, uracil, and thymine is derived of pyrimidine, so those three bases are called the pyrimidine bases.

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