Gene expression in neurons can be modified by action potentials through the {{c1::second messenger system}}
Answers
The statement *gene expression in neurons can be modified by action potentials through the second messenger system" is true.
When an action potential occurs in a neuron, it can activate various signaling pathways that ultimately lead to the activation of transcription factors in the nucleus. These transcription factors can then bind to specific regions of DNA and regulate the expression of certain genes, leading to changes in the properties of the neuron. The second messenger system is an important part of this process, as it helps to relay the signal from the cell membrane to the nucleus, allowing for the appropriate genes to be activated or inhibited in response to the action potential.
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Related Questions
A part of an mRNA has the sequence AAA. Use the table below to figure out
which amino acid is coded for by AAA, then use the table to figure out which
change to this sequence would indicate a silent mutation.
UUG)
Messenger
Second base in codon
RNA Codons U
С
А
UUU UCU UAU
UGU
U
UUC
Phe
UCC UAC
UGC)
Cys
C
U
Ser
UCA UAA Stop UGA Stop A
Leu
UCG UAG Stop UGG Trp
CUU
CCU CAUT CGU
His
CUC CCC
CAC)
CGC
Leu
Pro
CUA CCA CAA
CGA
Gin
CUG CCG CAG
CGG
AUU ACUT
AAU
AGU
Asn
Ser
AUC lle ACC AAC) AGC
AUA ACA AAA
Lys
AGA
AUGStart Me ACG AAG)
AGGS
GUU GCU GAUI GGU
GUC
Asp
GCC
GAC
GGC
G
Val
Ala
Gly
GUA GCA GAAU GGA
Glu
GUG) GCG GAG) GGG
Arg
First base in codon
Focopo co poco pull
Third base in codon
A
Thr
Arg
O A. UAA
DACA
Answers
Answer:
AAG
Explanation:
is the silent one in this case
Examine the model.
Non-sister chromatids
UU
How does the process shown in the model result in genetic variation?
Answers
Where does ingestion takes place in the human body?
Answers
I hope this helps!!
Answer:
the mouth
Explanation:
food enters the body through the mouth where it is made smaller for the stomach and esophagus by the teeth.
hope this helps ! :3
Which organisms have a cell wall in addition to their cell membrane (hint: everything except animals have cell walls
Answers
Answer:
Only plants, as well as some fungi, bacteria, and algae, have a cell wall. It exists outside the cell membrane and has a tough, flexible, and sometimes rigid texture!
fossil remains of animals and plants found alongside the earliest hominins, who existed between 4 and 7 million years ago, indicate they lived in a savannah environment.
Answers
Fossil remains of animals and plants discovered alongside the earliest hominins, dating back 4 to 7 million years ago, suggest that they inhabited a savannah environment.
The term "environment" refers to the surroundings or conditions in which living organisms exist. It encompasses the physical, biological, and social factors that influence or interact with organisms. The environment includes elements such as air, water, soil, climate, vegetation, or the presence of other living organisms. It also encompasses human-made structures, technology, and cultural systems. The environment plays a crucial role in shaping ecosystems, supporting biodiversity, and providing resources necessary for the sustenance and well-being of organisms. Understanding and preserving the environment is essential for maintaining ecological balance and promoting sustainable development.
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Which process turns glucose into energy?
Breathing
Cell division
Cellular respiration
Photosynthesis
Answers
Answer:
cellular respiration
Explanation:
adult herring are fish that feed primarily on small chemoheterotrophic protists and animal larva. these larva in turn feed on photoautotrophic protists. adult herring are eaten by larger predatory fish, which are in tern eaten by apex sharks. if anthropogenic activity dumps a large quantity of pcbs into their ecosystem, which organism is likely to suffer least? question 1 options: protists all organisms will suffer equally sharks the humans that eat the herring adult herring
Answers
The organism that is likely to suffer the least from the dumping of PCBs into the ecosystem would be protists, option (c) is correct.
PCBs are persistent organic pollutants that can accumulate in the food chain and have harmful effects on organisms, including developmental, reproductive, and immune system disorders. As herring feed on small chemo heterotrophic protists and animal larvae, they may accumulate PCBs in their bodies, and the predators that eat them, including larger predatory fish and apex sharks, may also accumulate these pollutants.
However, protists are at the lowest level of the food chain and are less likely to accumulate PCBs to the same extent as higher trophic-level organisms, option (c) is correct.
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The complete question is:
Adult Herring are fish that feed primarily on small chemoheterotrophic protists and animal larvae. These larvae in turn feed on photoautotrophic protists. Adult herring are eaten by larger predatory fish, which are in turn eaten by apex sharks. If anthropogenic activity dumps a large number of PCBs into their ecosystem, which organism is likely to suffer the least?
a) the humans that eat the herring
b) adult herring
c) protists
d) sharks
e) all organisms will suffer equally
In humans, straight thumbs (T) are dominant to hitchhiker's thumb (t). Complete a Punnett square to predict the outcome of a cross between a heterozygous male with a heterozygous female. Use that cross to answer questions below: a. What is the percent chance of the parents producing an offspring that is heterozygous?
Answers
The chance of the parents producing an offspring that is heterozygous is 50% or 0.50.
To predict the outcome of a cross between a heterozygous male with a heterozygous female who possess dominant alleles T (straight thumbs) and recessive alleles t (hitchhiker's thumb).
There are four possibilities to consider in this cross (heterozygous male × heterozygous female) and these are TT, Tt, tT, and tt.
The Punnett square below shows these possibilities as follows:
From the above Punnett square, you will see that the possible offspring genotypes are TT, Tt, tT, and tt. Each offspring has a 1 in 4 (25%) chance of having either of the four genotypes. Therefore, the percentage chance of producing a heterozygous offspring from this cross is:
The chance of the parents producing an offspring that is heterozygous is 50% or 0.50.
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Plssssssssssssssssssssssssssssssss help
Answers
Answer:
i got you.
Explanation:
The lipid layers purpose is to provibde membranes with the potential of budding, tubulation, fission and fusion. Those are needed for cell division, reproduction and intracellular membrane trafficking. Structure 1 would consist of photosynthesis because it is a plant. Structure 2 would react by sweating, since structure 2 is part of us, humans. we sweat to keep ourselves cool :) hope this helped!
why are sea oats considered to be a pioneer species
Answers
Sea oats (Uniola paniculata) are considered to be a pioneer species because they are one of the first plants to colonize and establish themselves in coastal dune environments.
Pioneer species are those that are well-adapted to colonize and thrive in harsh, disturbed, or newly formed habitats.
Coastal dunes are dynamic environments constantly subjected to wind, salt spray, shifting sands, and other harsh conditions. These conditions make it challenging for many plant species to establish and survive.
However, sea oats have several characteristics that enable them to thrive in such environments, leading to their classification as pioneer species:
1. Salt tolerance: Sea oats have adaptations that allow them to tolerate high levels of salt in the soil and salt spray from the ocean.
They have specialized mechanisms to exclude or excrete excess salt, enabling them to survive and grow in coastal areas where other plants may struggle.
2. Sand stabilization: The extensive root system of sea oats helps to anchor the sand, preventing erosion and stabilizing the dunes.
Their long, tough, and interconnected rhizomes (underground stems) and fibrous roots effectively bind the sand together, providing stability to the dune structure.
3. Wind resistance: The long, slender leaves of sea oats help them withstand strong winds.
The flexible leaves can sway with the wind, reducing the impact and preventing breakage. This adaptation allows sea oats to survive in the exposed and windy conditions of coastal dunes.
4. Sand accumulation: Sea oats have a unique growth habit that promotes sand accumulation.
The plant's large, feathery inflorescences or seed heads can trap blowing sand, leading to the build-up of sediment around the base of the plant. This accumulation helps to increase dune height and stabilize the surrounding area.
By colonizing and establishing themselves in coastal dunes, sea oats play a vital role in stabilizing the dune system, preventing erosion, and providing habitat for other plant and animal species.
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Many types of plants produce fruit which is eaten by animals. The seeds of these plants are typically undigestible. Which of the following is an advantage for plants having undigestible seeds? It allows seeds to reside in the gut until conditions are appropriate for germination. It ensures that flowers of these plants will be pollinated. It allows the seeds to be dispersed into other areas. It provides a source of nutrients for the germinating seed.
Answers
The advantage for plants having undigestible seeds is that it allows seeds to reside in the gut until conditions are appropriate for germination.
Fruits are a source of nutrition for animals that consume them, and they are also a means of seed distribution for plants that produce them. Many types of plants generate fruit that is consumed by animals; nevertheless, the seeds of such plants are usually indigestible. As a result, the seeds can be dispersed into new areas by animals that eat the fruit.
However, having undigestible seeds provides a distinct benefit to plants: it allows seeds to reside in the gut until conditions are appropriate for germination, which aids in seed growth and germination.
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The diagram shows a sequence. Which phrase best describes the sequence of the diagram?
Answers
c the path of energy through a food web in a natural community..
hope you will find it good,..
if tips of grasses or sugar cane are removed they keep growing in length
Answers
Answer:
Presence of intercalary metristems.
Explanation:
Makes the sugar cane grow in length even if the tips are removed.
Signs and symptoms of aplastic anemia include which of the following? (Select all that apply.) Fever Pallor Dyspnea Petechiae Bradycardia
Answers
Answer: FEVER, PALLOR, DYSPNEA AND PETECHIAE
Explanation: Anaemia is the decrease in the quantity and quality of blood cells in circulation in the body.
There are different types of anaemia,one of them being aplastic anaemia.
Aplastic anaemia is a type of anaemia characterised by reduction in the production of enough new blood cells by the body (bone marrow).
When this occurs,the individual becomes easily tired and prone to infection as a result of weakened immune system.
Aplastic Anaemia can be caused by radiation or chemotherapy,it can also be caused by autoimmune reaction when your body starts attacking it's stem cells in the bone marrow.
B b
B BB ??
b Bb bb
In some animals, brown eyes (B) are dominant over blue eyes (b). Which of these genotypes will complete this Punnett square?
A.
BB
B.
bb
C.
Bb
D.
B
Answers
Answer:
C. Bb
Explanation:
The given Punnett Square uses two Bb (One dominant and one recessive trait for both). Set the Punnett Square. The Punnett Square will take one trait from each parent:
\(\left[\begin{array}{ccc}&B&b\\B&BB&Bb\\b&Bb&bb\end{array}\right]\)
The missing offspring is the top right value, which results in Bb. Therefore, C. Bb, is your answer.
~
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. Are consumers heterotrophs? Justify your answer.
Answers
Answer:
Are consumers heterotrophs?
Yes They Are! :D
:Heterotrophs are known as consumers because they consume producers or other consumers
xXxAnimexXx
Answer:
A heterotrophs is not a producer because it needs to survive on other plants and animals.
Hope it helps
How Fast can you answer how fast can i give you brainliest??
Answers
Answer:
its bExplanation:
If the sugar concentration in a cell is 4% and the concentration in a cell’s environment is 2%, how can the cell obtain more sugar?
Answers
For a cell to obtain more sugar the cell must use active transport to pump the sugar inside it .
Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration which occur against the concentration gradient . So , it requires cellular energy to achieve this action.
Main function of active transport is involves the movement of molecules from a region of lower concentration to a region of higher concentration with help of energy in form of ATP. examples of active transport include the absorption of glucose in the intestine of the human body and the uptake of minerals or ions into the root hair cells of plants.
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Describe the functioning of Golgi apparatus in animal cells.
Explain the role of lysosomes in animal cells.
Answers
With your fragment now in an expression plasmid, you will need to check to ensure that the fragment is in the correct reading frame from the promoter so that a functional enzyme can be made. You will utilize the polymerase chain reaction (PCR) to amplify a section of the plasmid containing your insert so that it can be sequenced. PCR uses a DNA polymerase isolated from a hyperthermophilic bacterial species to synthesize a new DNA strand off a template strand of DNA. You are supplying a template in the form of the plasmid with the inserted fragment. PCR also uses the requirement of DNA polymerase to have a pre-existing primer with an open 3' end for new strand synthesis. You will provide the primers that will bind to specific DNA sequences before and after the inserted fragment and will act as boundaries for what part of the plasmid will be amplified. The resulting short, amplified fragments will be identical in base sequence to the original plasmid templates. Once PCR amplification is complete, you will have enough template fragments to send for DNA sequencing to ensure that you have inserted the genes correctly into the plasmid. Correct insertion will result in the production of an mRNA strand that will have the first gene codon in the correct reading frame for a working enzyme to be produced. Of the following components, which ones are required for the amplification of a specific section of DNA using the polymerase chain reaction? Select all that apply.
a. DNA primers
b. RNA polymerase
c. a strand of RNA to act as a template
d. DNA polymerase that is heat stable
Answers
Answer:
The correct answer is - a. DNA primers, and d. DNA polymerase that is heat stable.
Explanation:
In Polymerase chain reaction (PCR) there are many components are required in a overall process but there is two major components that are required for amplification of a specific section of DNA:
a. DNA primers- these are short and strands or sequence of ssDNA, a pair of these sequence acts as the starting site for a new strand which is used to hybridize with the sample DNA and mark the region of the DNA of interest to be amplified.
d. DNA polymerase that is heat stable- PCR technique involves various reaction that are performed at different temperatures. A thermophilic bacteria Thermus aquaticus is used to get this heat stable enzyme, Which lives in hot springs.
Thus, the correct answer is - a. DNA primers, and d. DNA polymerase that is heat stable.
In which organelle does photosynthesis take place?
A:chloroplast
B:vascular bundle
C:mitochondrion
D:stoma
Answers
Answer: Chloroplast
Explanation:
Chloroplast
What evidence do you have that mitosis occurred in the roots?
Answers
Answer:
The evidence we found that mitosis was a continuous process was that many of the cells we observed in a small part of the onion root was that they were between stages meaning they never stopped and started, the process kept going.
Explanation:
Based on what you know, how would you improve Jose's running experiment?
He should try another running field.
He should take another lap.
He should try another pair of running shoes.
He could improve his running experiment using repetition.
Which is correct?
Answers
Answer:
He could improve his running experiment using repetition.
Explanation:
Like nutrients and water, energy also recycles through an ecosystem,True Or False?
Answers
Answer:
Explanation:
True
Help help help. Please be 100% sure of your answer. Thank you :-)
Answers
Answer:
The answer is D: Amino Acids
Explanation:
Please mark this as brainiest answer, Thank you
What is the infective stage of the Leishmania cylcle?
Answers
The infective stage of the Leishmania cycle is the promastigote form, which is transmitted to a host through the bite of an infected sandfly. Once inside the host, the promastigotes transform into amastigotes and multiply within macrophages, causing various forms of leishmaniasis.
The infective stage of the Leishmania cycle is the promastigote stage. Promastigotes are the elongated, motile form of Leishmania parasites that are found within the midgut of the sandfly vector. When an infected sandfly takes a blood meal from a mammalian host, the promastigotes are regurgitated along with the sandfly's saliva into the host's skin. The promastigotes then invade macrophages and other cells of the host's immune system, where they transform into the amastigote form and replicate.The amastigote form is the intracellular stage of the Leishmania parasite that is responsible for the pathology of the disease in the mammalian host. The amastigotes multiply within infected cells, causing cell damage and immune system activation, which can lead to the clinical manifestations of leishmaniasis. The amastigotes can then be ingested by another sandfly vector during a blood meal, thus continuing the life cycle of the parasite.
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Cell walls in plant cells provide support and structure for the cell, allowing plants to 'stand up' without a skeleton. What are these walls made of?
A. Cellulose
B. Phospholipid bilayer
C. Cellulite
D. Cytoplasm
Answers
Answer:
Cellulose
Explanation:
Cell walls made of cellulose are only found around plant cells and a few other organisms. Cellulose is a specialized sugar that is classified as a structural carbohydrate and not used for energy. ... While cell walls protect the cells, they also allow plants to grow to great heights. You have a skeleton to hold you up.
Cell walls in plant cells provide support and structure for the cell. The cell wall of plants is made up of cellulose. The correct option is A.
What is a cell wall?
The cell wall is the outer covering of a cell. It is made up of different materials. It protects the cell from outer invasions. In plants, it is made up of cellulose.
Cellulose is a highly strong material, which gives the plant support and structure.
Thus, the correct option is A. Cellulose regarding the cell wall of plants.
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If you know the answer to this question please help!! ASAP I will give brainiest!
Answers
Answer:
The answer is "Photosynthesis creates glucose (sugar) which is used in cellular respiration."
Explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. We breathe in that oxygen, which is carried through our blood to all our cells. In our cells, oxygen allows cellular respiration to proceed. Cellular respiration works best in the presence of oxygen. Without oxygen, much less ATP would be produced.
Learn more at https://flexbooks.ck12.org/cbook/ck-12-middle-school-life-science-2.0/section/2.17/primary/lesson/connecting-cellular-respiration-and-photosynthesis-ms-ls
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What is the major limiting factor to the numbers of producers at great depths in the ocean?
A. Type of seafloor
B. Amount of sunlight
C. Variety of consumers
D. Availability of minerals
Answers
Answer:
B. Amount of sunlight
Explanation:
The producers in the ocean are dependent on the amount of sunlight because that is one of the major things they need to get their food.
I hope this helps~
Which of the following are characteristics of life?
Select one or more:
a.
made of similar chemicals
b.
respond to stimuli
c.
made of one or more cells
d.
maintain homeostasis
Answers
Answer:
the answer is b. respond to stimuli