Answer:
Gene expression in eukaryotic cells is regulated by repressors as well as by transcriptional activators. Like their prokaryotic counterparts, eukaryotic repressors bind to specific DNA sequences and inhibit transcription.
Explanation:
In eukaryotes, gene expression is regulated mostly by transcription factors.
What are transcription factors?Transcription factors are proteins that bind to DNA in the promoter region of a gene, and they play a critical role in controlling when and to what extent a gene is expressed.
They can either activate or repress gene expression by promoting or inhibiting the recruitment of RNA polymerase. Transcription factors are themselves regulated by a variety of signals, including hormones, growth factors, and other external cues, as well as by feedback loops and other regulatory mechanisms within the cell.
Ultimately, this complex interplay of factors allows eukaryotic cells to precisely control which genes are expressed, when they are expressed, and to what degree, enabling them to respond to changing internal and external environments.
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structure of the atmosphere: Beginning at the surface of the earth list in order the layers of the atmosphere
Answer:These layers are the troposphere, stratosphere, mesosphere and thermosphere.
Explanation:
Which of the following is the central issue underlying a problem that needs to be addressed
Answer:
you didnt list the options
Explanation:
which of the following is a true statement about glycolysis?
A. electrons and hydrogens get transferred to NAD+, making NADH
B. Electrons and hydrogens get removed from glucose when it gets oxidized
C. ATP gets made when a phosphate is transferred to ADP
D. ALL OF THE ABOVE
All the options are true statements regarding the glycolysis and its mode of
operation.
Glycolysis involves the breakdown of glucose in order to release energy.
This produces pyruvate, two hydrogen ions , two molecules of water and
the free energy is used to produce ATP
In glycolysis, electrons and hydrogens get removed from glucose when it
gets oxidized and then they get transferred to NAD+, making NADH.
The ATP is generated by the transfer of a phosphate to the ADP to form ATP
which is a source of energy.
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Sulfur dioxide _____.
A.) creates a reddish-brown haze in the sky
B.) is a secondary air pollutant
C.) has an irritating odor and is colorless
D.) is relatively harmless to the environment
Answer is C
Answer:
C.) has an irritating odor and is colorless
Explanation:
Sulfur dioxide is a chemical compound that's very toxic, non-flammable, colorless, and has a pungent odor. It's chemical formula is [tex]SO_2[/tex].
The four main groups of macromolecules are carbohydrates, lipids, proteins. Identify each type of macromolecule based on its monomer.
hey nerds why aren't blueberries blue
Answer:
Blueberries get their color from anthocyanins.
Explanation:
Answer:
Because its got more anthocyanins since its a darker colour.
Explanation:
Which one is the most venomous snake in the world
[tex]\huge\color{pink}\boxed{\colorbox{Black}{彡Answer彡}}[/tex]
Inland Taipan
The cell membrane is said to be semipermeable because
Answer:
The membrane is selectively permeable because substances do not cross it indiscriminately.
Explanation:
6. The anterior muscles and tendons of the forearm do what action?
Answer:
The main action of pronator teres is pronation of the forearm at the proximal radioulnar joint, while it also contributes to the flexion of the forearm at the elbow joint. Start with the anatomy of anterior forearm muscles by exploring our videos, quizzes, labeled diagrams and articles.
One of the functions is
All lipids are made from smaller building blocks known as
The answer are
amino acids
fatty acids
monosaccharides
nucleotides
Answer:
Fatty acids
Explanation:
Lipides is fat in French so I just figured it makes sense.
Answer:
What is amino acids
Explanation:
Lipids are composed of fatty acids, glycerol, and other components. A compound made of small carbon compounds called amino acids.
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Miss Hawaii
Which organisms are heterotrophs?
photosynthesizers
producers
consumers
plants
Answer:
consumers
Explanation:
Heterotrophs don't make their food.
Answer:
it's C
Explanation:
got 100 on edge
Which of the following describes what occurs during inhalation?
Answer:
c. Ribs move out- diaphragm contracts- lungs expand- decrease intrathoracic pressure
Explanation:
Answer:
c
Explanation:
A black chicken and a white chicken are crossed. What is the probability that they will have erminette chicks? ____%
Answer:
0% or 100%
Explanation:
Because when you put it out onto a table you only get the combination black and white so there could be a chance of either
What is a protein? a macromolecule that is made from various nucleotides a macromolecule that is made from various amino acids a molecule that plays only a minor role in cellular function a molecule that comes in many shapes but is always the same size a molecule that comes in many sizes but is always the same shape
Answer:
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues.
Explanation:
Also can you mark me as brainliest?
What are centrioles and centrosomes?
Answer:
What are centrioles and centrosome?
Within the cell, a centrosome is a structure that organizes microtubules during cell division. Each centrosome contains “paired barrel-shaped organelles” called centrioles and a “cloud” of proteins referred to as the pericentriolar material, or PCM. They also enable movement of other organelles within the cytoplasm
Explanation:
Answer:
a centrosome is a structure that organizes microtubules during cell division. Each centrosome contains “paired barrel-shaped organelles” called centrioles and a “cloud” of proteins referred to as the pericentriolar material, or PCM.
Centrioles are made up of short lengths of microtubules “arranged around a central cavity.” Each centriole is around 500 nm long and 200 nm in diameter. The function of centrioles in animal cells is to organize the PCM to aid in microtubule formation.
Hope this helps!!!
there are 22 grams of media per 1000 mL of liquid, how many grams of media would it take to make only 100 mL of liquid?
Answer:
1ml
Explanation:
ddddddn
svscwjdvjwdvwjdvwjskqskwsg
How are male and female reproductive organs similar?
Answer: They are the same in that most of the reproductive organs of both sexes develop from similar embryonic tissue, meaning they are homologous. Both systems have gonads (male have testes and female have ovaries) that produce gametes (testes produce sperm and ovaries produce egg or ovum) and sex organs.
where do daughter cells come from
Explanation:
Daughter cells are cells that result from the division of a single parent cell. They are produced by the division processes of mitosis and meiosis. Cell division is the reproductive mechanism whereby living organisms grow, develop, and produce offspring.
Who loves birds? more like wild north american birds
I do.
Though, my favorite bird would have to be a Sandhill Crane. They're elegant and fly extremely high, higher than most birds, though because some buildings are so high they get killed often(anything that flies in the jetstreams, really)
The ________ plate method involves spreading an inoculum onto the surface of a plate in a pattern that results in isolated colonies in some areas of the plate after incubation, whereas the ________ plate method involves diluting an inoculum into several melted agar tubes and then adding their contents into plates for solidification and incubation.
Answer:
Streak, pour.
what is the difference between a joint and a fault?
Answer:
Fractures include joints and flaws. A joint is a fracture along which there has been no movement, which is generally generated by tensional pressures. A fault is a fracture or break in the rock that has allowed movement to occur. Near faults, more earthquakes are likely to occur.
Why are viruses like the avian flu important for vet scientists to study?
Answer:
to help detect other livestock diseases early could help to prevent the staggering economic losses
(short answer but hope this helps) :)
What is the most medial muscle of the leg?
Answer:
gracilis muscle
Explanation:
Both amino acids and nucleotides contain
from the periodic table.
Nitrogen
O Phosphorus
Sulfur
O Boron
1. The cells in a multicellular organism have specific jobs. This is called cell _____.
1. The cells in a multicellular organism have specific jobs. This is called cell organelle.
In a multicellular organism, the cells have specific jobs. This is called cell Division of Labor.
Division of Labor:
Different body functions are done by different type of cell.
Multicellular organism required different body function to live such as digestion and movement. Movement is accomplished by muscle cells.In a multicellular organism, the cells have specific jobs. This is called cell Division of Labor.
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Which of the following describes how oxygen moves during respiration?
Answer:
b. External respiration- from the air to the blood; Internal respiration from the blood to the tissues.
Explanation:
Describe how bacteria are used to produce enzymes for washing powders.
Answer:
By using genetic engineering to insert the gene for the desired enzyme into the bacterial chromosome, then growing large amounts of the modified bacteria in fermenters.
Explanation:
Answer:
Bacteria such as fungi or algae are inserted in fermenter and feedstock such as glucose, amino acid, sucrose are inserted to be a source of food for them.
Then they are left for a time for the bacteria to reproduce more and to produce more enzymes in their cells, Then if the enzymes are extracellular they are extracted directly from the filtrate, if they are intercellular they are separated from the feedstock and crushed to be separated with any solvent such as water.
By using genetic engineering to insert the gene for the desired enzyme into the bacterial chromosome, then growing large amounts of the modified bacteria in fermenters.
Explanation:
3. What is the main stream of the Mississippi River
system?
Answer:
The Mississippi river water source is fed by Lake Itasca in Northern Minnesota.
A frog cannot be kept in the class pisces. Why?
Answer:
The frog belongs to the class amphibia, which live both on water and land.
Explanation:
Frogs spend part of their lives underwater and part on land.
Answer:
a frog is not only aquatic but also a terrestrial animal therefore it is placed in the class of amphabia and not pisces#thatstherightanswer
hope na naktulong akoa daughter cell that just got created via mitosis is most likely in what stage?