Answer: B is the right answer, or #2
Explanation: Got this on a test, I got it wrong but my teacher showed the right answer LOL
NEED HELP ASAP:
Which of the following describes DNA methylation?
A.) A mechanism involving attachment of methyl groups to certain bases to increase the rate of transcription.
B.) A mechanism involving attachment of methyl groups to certain bases to facilitate the binding of DNA to intermediate filaments.
C.) A mechanism involving attachment of methyl groups to certain bases leading to apoptosis.
D.) A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development.
Hello, I Am BrotherEye
Answer:
D.) A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development.
Explanation:
View Above
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~
BrotherEye
The statement that can be used to describe DNA methylation is "A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development."
Option D.) is correct.
Define DNA methylation.DNA methylation controls gene expression by attracting proteins implicated in gene repression or preventing transcription factor(s) from binding to DNA. The pattern of DNA methylation in the genome varies during development as a result of a dynamic process that includes both de novo DNA methylation and demethylation.
DNA methylation is an epigenetic mechanism that happens when a methyl group is added to DNA, altering the function of genes and influencing gene expression.
It's a process that involves attaching methyl groups to specific bases in order to inactivate genes for a lengthy time throughout development.
So, the statement that can be used to describe DNA methylation is option D.)
Find out more information about DNA methylation here:
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Explain how a small occurrence, such as a farmer fertilizing a field, could result in a major change in the ecosystem of a pond.
BTW this is on algae blooms
Answer:
Explanation:
Nutrient pollution is the process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae. Nutrients can run off of land in urban areas where lawn and garden fertilizers are used.
_________ is caused when nitrogen and carbon compounds in the air react in sunlight.
PLEASE HELP ASAIP ITS IMPORTANT!!!
A.)CFC's
B.)Particulate matter
C.)Carbon monoxide
D.)Photochemical smog
E.)Acid precipitation
Answer:
Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
Explanation:
The diagram below represents some events that take place in plant cells. In which organelle will this occur?
Sugar 02
QA
> CO2
ADP-ATP
H20
O mitochondrion
O chloroplast
O lysosome
nucleus
Answer:
mitochondrion
Explanation:
there is production of energy and co2 and h20 which means the process is respiration which takes place in the cytoplasm or mitochondrion
So, how do Solids, liquids and gasses change states?
Group of answer choices
No answer text provided.
keeping thermal energy the same
adding or removing thermal energy
the other two answers are both incorrect
Answer:
Adding or removing thermal energy
Answer:
adding or removing thermal energy
Explanation:
9. Nulceus
(1 Point)
O plant
O animal
O both
10. Vacuole
(1 Point)
O plant
O animal
O both
Answer:
1. Both2. Both
Hope this helps!
What is nitrogen cycle and, what things need the nitrogen cycle and why is it important?
(i need help)
Explanation:
So plants need nitrogen to make their proteins (proteins are made of carbon, hydrogen, oxygen, nitrogen and small amounts of sulfer).
Unfortunately, the nitrogen in the atmosphere is inert (unreactive).
But there are still other ways to get nitrogen:
1. Lightning. It causes some of the nitrogen to combine with oxygen, forming nitrogen oxides. These dissolve in rain and are washed into the soil where they form nitrates.
2. Artificial fertilizers. There are literally ammonium compounds and nitrates in those bags that people sell.
3. Nitrogen-fixing bacteria. So there is bacteria in the soil that live in root nodules on plants.
What do they do?? They use nitrogen from air spaces in the soil and combine it with other subsrances to make ammonium ions and other compounds.
4. Nitrifying bacteria. They turn ammonium ions into nitrates, which plants can use again. (so basically they serve nitrogen dish to the plant)
They convert the nitrogen containing substances into BETTER nitrogen containing substances for the plant
5. Denitrifying bacteria. FINALLY these bacteria turn nitrates and ammonia in the soil into nitrogen gas, which goes back to the atmosphere.
And the cycle goes on from the start...
Note that 1-3 are just ways in which nitrogen can be converted into a more reactive form.
I Hope this helps
3 name that shows that climate has changed over time
Things like hurricanes and tornados get worse, flooding occours more often, the climate gets slightly warmer, sea levels rise, and warmer summer tempuratures.
Which of the following is typical of aerobic respiration?
produces methane as a byproduct
produces little energy
decreases a plant’s weight
contains two stages, glycolysis and fermentation
Can anyone please answer it for me pleaseeeeee
Answer:
what is the question
Explanation:
tell we we will solve it within minutes
Answer:
Hi, I don't see any of the following questions
Where does the Calvin cycle occur?
lumen
matrix
stroma
thylakoid
Answer:
stroma
Explanation:
Which of the following types of mutations would most likely
result in a serious genetic disorder?
a somatic mutation
b silent mutation
C frameshift mutation
d all of the above
Answer:
D
All of the above
Answer:
Than answer is C: Frameshift Mutation
Explanation:
This answer was from the ck-12 mutation series test and shows correct.
which of the following is true of conifers?
A: The sporophyte grows directly from the gametophyte
B: The spores release from the gametophyte
C: The gametophytes grow directly from the sporophytes
D: The spores release from the male cones
hopefully someone can help me!
Answer: The Answer is C!
Explanation:
Hope this Helps!
Answer:
The gametophytes grow directly from the sporophytes
Explanation:
GIVE brainliest
-don't put that tingurl or any other website thing plzzz thank you so much-
Plate Tectonics Vocabulary
Use your notes to answer the following definitions. (15 terms)
Theory of Plate tectonics:
Lithosphere:
Convection currents:
Seafloor spreading:
Paleomagnetic:
Divergent boundary:
Convergent boundary:
Mid-oceanic ridge:
Rift valley:
Transform fault boundary:
Subduction zone:
12.Trench:
13. Continental-oceanic convergence:
14. Continental-continental convergence
15. Asthenosphere:
Answer:
Theory of Plate tectonics: states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere
Lithosphere: the rigid outer part of the earth, consisting of the crust and upper mantle.
Convection currents: occur when a heated fluid expands, becoming less dense, and rises
Seafloor spreading: the formation of new areas of oceanic crust, which occurs through the upwelling of magma at mid-ocean ridges and its subsequent outward movement on either side.
Paleomagnetic: is the study of the record of the Earth's magnetic field in rocks, sediment, or archeological materials.
Divergent boundary: occurs when two tectonic plates move away from each other.
Convergent boundary: is an area on Earth where two or more lithospheric plates collide.
Rift valley: A rift valley is a linear-shaped lowland between several highlands or mountain ranges created by the action of a geologic rift or fault.
Transform fault boundary: A transform fault or transform boundary is a fault along a plate boundary where the motion is predominantly horizontal.
Subduction zone: is a region of the Earth's crust where tectonic plates meet.
Trench: Trenches are long, narrow depressions on the seafloor that form at the boundary of tectonic plates where one plate is pushed, or subducts, beneath another.
Continental-oceanic convergence: When two plates come towards each other they create a convergent plate boundary. The plates can meet where both have oceanic crust or both have continental crust, or they can meet where one has oceanic and one has continental.
Continental-continental convergence: So when two continental plates collide, they just smash together. When two plates of continental crust collide, the material pushes upward. This forms a high mountain range. The remnants of subducted oceanic crust remain beneath the continental convergence zone.
Why DID YOU NOT GIVE ME MORE POINTS FOR THIS. YOU KNOW HOW LONG THIS TOOK!!!
Can someone please, "(Explain the relationship between planets and moons)?"
I need it really badly.
economic importance of lizard in agriculture
Answer:
Reptiles play an important role in the balance of an Ecosystem. In most ecosystems, reptiles are the vital part of food chains and they play a huge role both as the prey species and the predators in ecosystems. They also play the role of a pollinator. Many serious agricultural pests were eliminated by the reptiles
An antibody attaches to an antigen for what reason?
provide protection against pathogens
produce antibiotics to control disease
eliminate harmful gene alterations
regulate production of ATP by the cell
Answer:
provide protection against pathogens
Explanation:
Is this right yea or no and please just don’t say it’s right if u don’t know
Answer:
i cant not see the question that you are asking me to solve for you
Explanation:
How do i describe a viruses physical appearance?
How do I give a physical description of a virus NOT the symptoms that it causes in a person.
Answer:
Well all viruses are different...
The most simple viruses have only two parts: 1) a genome (DNA or RNA) that is a blueprint with instructions for making more viruses and 2) a capsid protein shell that protects the genome. Viruses also often have proteins called receptors that stick out of the shell, and help the virus sneak inside cells.
Many viruses that infect humans and animals also have an envelope, something like a cell membrane, around the capsid and genome.
O fenômeno que troca parte das cromátides - irmãsna meiose para ter maior variabilidade genética, denominado de crossing over ocorre na: * 1 ponto A) telófase. B) Anáfase. C) Metáfase. D) Telófase. E) Prófase.
Answer:
E. Proface/ Prophase
Explanation:
The correct answer to the given question is given below,
E. Prophase
The explanation to the given answer is given below,
The phenomenon that changes the part of the chromatids meiosis to have a greater amount of genetic variability is occured in the prophase.
Why does chocolate burn some people's throats? Does anyone know someone who has GERD?
allergic reaction thats why
In the process of photosynthesis, kinetic energy is released in the form of light where plants create chemicals from oxygen and water and release carbon dioxide for human to use for respiration. True or false
Answer: False
Explanation:
The solar energy is the form of thermal energy coming from the sun and incident on the surface of the leaves of plant. This energy is useful in splitting the molecules of water. The plants create food in the form of carbohydrates via reactants like carbon dioxide and water. These reactants when combine then produce products carbohydrates and oxygen gas is released as byproduct of this biochemical reaction. According to this information, the given statement is false.
A standardized classification system based on evolutionary trends and relationships was established to group living things. Which of these justifies the use of a standardized classification system? Select ALL that apply.
A) This standardized classification allows for organisms with similar appearance to be easily grouped.
B) This standardized classification allows for scientific agreement on grouping of organisms worldwide.
C) This standardized classification provides a common mechanism for scientists to use when collaborating.
D) The standardized classification system requires that no changes be made to a species taxonomic placement after initial naming.
E) The standardized classification allows for recognizing relatedness based on common ancestry rather than physical morphologies.
Answer:
A
Explanation:
because it is A!!!
What best describes a high pressure system? Question 4 options: Warm, rising air that creates cloudy, rainy weather Warm, rising air that creates clear, sunny weather. Cool, sinking air that creates cloudy, rainy weather Cool, sinking air that creates clear, sunny weather
Answer:
a high pressure system : Cool, sinking air, that creates clear, sunny weather.
Explanation:
The characteristics of the high-pressure system is marked by the presence of the cold and sunny days as compared to those of the warm and low-pressure pressure regions of the world. The air is light and lifts up easily and hence leading to the formation of clouds and rainfall. As compared to the cold air mass that is dense and hence has low moisture contents.Mike is studying the phylogenetic tree for big cats.
A big cat phylogenetic tree is shown. A bracket goes to clouded leopard and to another bracket. That bracket goes to 2 additional brackets. One bracket goes to tiger and snow leopard. The other bracket goes to janguar and another bracket. The other bracket has lion and leopard.
He made several statements about the tree. Which statement is not true?
The leopard is more closely related to the jaguar than to the snow leopard.
The leopard is more closely related to the tiger than to the clouded leopard.
The leopard is more closely related to the snow leopard than to the clouded leopard.
The leopard is more closely related to the tiger than to the snow leopard.
Answer: D: The leopard is more closely related to the tiger than to the snow leopard
Explanation:
The leopard is equally related to the tiger and the snow leopard
The leopard is more closely related to the tiger than to the snow leopard.
What is phylogenetic tree?A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.
Why phylogenetic tree is important?Phylogenetic trees are important tools for organizing knowledge of biological diversity, and they communicate hypothesized evolutionary relationships.
To learn more about phylogenetic tree, here
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A species of organism has survived in a mild environment for thousands for years. Suddenly, the climate changes and the area becomes a cold and barren tundra. Which of the following traits might help the species survive?
short neck to help keep heat inside the body
thick fur to keep the organism warm
small size so the organism requires less food
all of the above
Answer:
all of the above
Explanation:
These are all great rel world exaples of traits animals have in colder climates for the reasons listed.
Answer:
All of the above! :3
Explanation:
:3
Coral reefs support less than 25 percent of marine life. True False
Answer:
True
Explanation:
The variety of species living on a coral reef is greater than in any other shallow-water marine ecosystem, making reefs one of the most diverse ecosystems on the planet. Covering less than one percent of the ocean floor, coral reefs support an estimated 25 percent of all known marine species
Answer:
false
Explanation:
Coral reefs support an estimate 25 percent of all marine life.
In order for a cell to function efficiently, it must have: *
Small surface area, small volume
Small surface area, large volume
Large surface area, small volume
Large surface area large volume
the s checkpoint just before the entry into the s phase makes the key decision of whether the cell should divide
Answer:
Yes that is correct becuase people have hade the technology to do that.
Explanation:
Why is intake of iodine essential in our diet
Explanation:
iodine is a mineral found in some fruits the body needs iodine to make thyroid hormones. these hormones control the body's metabolism and many other important functions the body also needs through wide hormones for proper bone and brain development during infancy