If the inducer [allolactose] is present in the negative control then it will bind to the repressor decreasing its ability to bind to the operator due to which the transcription begins again and the operon is turned on.
Lac Operon is a set of three genes z, y & a which are regulated under the same promoter which regulates the amount of lactose production in the cell.
An inducer is a molecule that has the ability to induce or activate the operon. ex- in the case of the lac operon, allolactose acts as an inducer.
A repressor is a molecule that will repress or restricts the transcription of the genes of the operon, as a result, the operon will be switched off.
When the lac operon is under negative control, with no CAP [catabolite repressor protein] binding activity, the repressor remains active and thus binds to the operator region of the operon, as a result, no transcription takes place and the operon will be switched off.
But if the inducer will be present even in the negative control then the transcription takes place and the operon will be on.
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Please Helppp!!! What could lead to different populations of the same species living in different environments?
Answer: Migration, because species move to other places for food or a better or more suitable habitat and sometimes their is other species there.
Different ecological and biogeographical causes lead to different populations of the same species living in different environments. Ecological factors include intraspecific competition, migration, resource searching, habitat destruction, among others. Biogeographical dispersion involves wider areas and time factor. Human action is also a cause of dispersion.
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Dispersion can be defined as the dissemination and distancing process of some individuals from others. It refers to the change in an organism's range or distribution area.
Different ecological and biogeographical processes might be involved in organisms' dispersion.
Ecological processes involve intraspecific competition for resources, habitat destruction, lack of resources -food or water-, among others. This is an intra-area, moderate dispersion that reduces competition and increases niche findings. It involves daily and seasonal migration and territoriality. Biogeographical processes refer to bigger changes that involve wider areas and time. It includes the historical factor, besides migration. This is an extra-area dispersion process.→ Jumping dispersion refers to a few individuals, in a short time, that can cross a barrier and occupy a new area. In this situation, the establishment is not always for sure. They must reproduce and start a new population of a certain size that can survive the new conditions.
→ Diffusion refers to populations that, through many generations, explores and expands in new regions with favorable conditions.
→ Secular migration is the diffusion through thousands of generations.
Dispersion is also caused by human actions, following different interests and goals.When two populations of the same species migrate to new areas and adapt to different environmental pressures, they will probably suffer from the speciation process with time, becoming two different species.
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In general, food molecules are ___________ by the digestive tract of organisms so they can be _______________.
Select one:
broken down; absorbed into the bloodstream
broken down; released as heat
combined; absorbed into the bloodstream
converted to energy; used to power the muscles
Answer:
converted to energy ; used to power the musclesMARK ME AS BRAINLISTWhy is the moon abiotic?
Answer:
The moon is abiotic because it doesnt move and it's not a living thing.
A group of four students is participating in a marble race. Each marble has a different mass and the same force is applied to each marble.
Marble Data
Marble
А
Mass
(9)
30
50
70
Force Applied
(N)
60
60
60
F
H:T:
mxa
B
С
D
90
60
Which marble will experience the least acceleration?
O Marble A
O Marble B
Marble C
Marble D
Answer:
Marble D
Explanation:
According to this question, a group of four students is participating in a marble race. Each marble is said to have different mass but the same force were applied to each of them.
The relationship between the mass, force and acceleration of an object has been explained with the equation: F (force) = mass (m) × acceleration (a).
F = ma
Hence, a = F/m
Based on this, with a constant force, the acceleration is inversely proportional to the mass of an object. This means that when the mass increases, the acceleration decreases and vice versa. Based on the table showing the value for mass and uniform force for each marble, the marble with the highest mass (90) will have the least acceleration (0.66666). This marble is MARBLE D.
How are environmental issues and food production related?
Answer: Food consumption and production have a considerable impact on the environment. Food production contributes
Explanation: , for example, to climate change, eutrophication and acid rain, as well as the depletion of biodiversity. It is also a considerable drain on other resources, such as nutrients, land area, energy, and water.
______ is the transfer of energy through spaces as electromagnetic waves in all directions?
A. Conduction
B. Radiation
C. Fission
D. Convection
Answer:
electromagnetic radiation Transfer of energy by electromagnetic waves across space or through matter.
Answer:
radiation
Explanation:
Why are stabilizing proteins neeed to keep the DNA strands separated?
Single-stranded DNA-binding proteins are protected exactly tightly to DNA, but with extremely little carefulness for individual nucleotide sequences.
What is DNA?
They accomplish this by interacting strongly with the DNA backbone, via hydrogen bonds with the ribose and phosphates and complementary control interactions with the phosphates.
When the Proteins of DNA Replication DNA Helicases. These proteins attach to the double-stranded DNA and facilitate the separation of the two strands. DNA single-stranded critical proteins.
Although, These proteins bind to the DNA as a stable tetramer the single-stranded structure is produced by the action of the helicases.
Single-stranded DNA-binding proteins (e.g., [RFA] eukaryotic replication factor A) then stabilize the decompressed template DNA, maintaining it in an extended single-stranded state so that it can be simulated by the polymerase.
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define cell division
Answer:
Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle.
Explanation:
Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle.
PLZZ HELP IM DOING A UNIT ASSESMENT!!!!
What types of cells would contain cell walls and what types of cells would contain a cell membrane?
Answer:
I agree with the other person
have a good day :)
Explanation:
is spirogyra a protist or thallophyta
Answer:
Protista
Explanation:
Kingdom: Protista and Division: Charophyta
Answer:
protista
Explanation:
it exists in haploid cells reproduced by binary fission
list and describe three methods of keeping a gap between the birth of two children.
class 10 biology btw
Answer:
either a barrier or chemical method can be used
i.e, is de usage pills or copper-t , condom in males .. etc ..... ( correct me if i m wrong ) ....
how extrusive igneous rocks and intrusive igneous rocks form?
Answer:
Intrusive igneous rocks are formed when magma cools slowy and large crystals are formed
Extrusive igneous rocks are formed when magma cools quickly, and small or no crystals are formed, it may be vesicular meaning it may contains air bubbles.
As a cell grows in size, transporting the materials in and out of the cell becomes more difficult. Which process would help a cell to efficiently transport more materials into the cell as it grows?
Grupo de escolhas da pergunta
A) The cell develops a thinner cell membrane.
B) The cell undergoes a mutation.
C) The cell stores more materials in its vacuoles.
D) The cell divides into two cells creating more space for materials.
ASAP
Answer:
A
Explanation:
The process that would help a cell to efficiently transport more materials into the cell as it grows is the cell develops a thinner cell membrane (Option A).
What is cellular transport?Cellular transport is a process by which cells can take substances from their surrounding environment.
Cellular transport depends on the characteristic of the cell membrane where the substances need to pass.The mechanisms of cellular transport include active transport and passive transport.In conclusion, the process that would help a cell to efficiently transport more materials into the cell as it grows is the cell develops a thinner cell membrane (Option A).
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Regan is trying to determine if an unknown element is a metal. She does not want to damage or change the physical appearance of the element in any way. Design an experiment that could determine if the mystery element is a metal without changing its appearance.
Explanation:
Well, one could use a magnet to see if it's ferrous. One could melt it to check which type it is, use a metal detector, or just use their senses: If it dings or clinks like metal, and feels like it’s texture. If it polishes with metal polish, is reflective, can be shaped or shape when heated… It usually is a metal. If it rusts, or oxidizes, it is or contains metal. If it “smells" like metal, most likely, it is metal. Finally, if it walks like metal, and quacks like metal, most likely we have a metal
A defendant's attorney can claim insanity in his or her defense for a crime against another person.
False
True
Answer: The answer is true.
Answer:
True
Explanation:
edge business law 2023
7. Which of the following is not an example of an abiotic factor?
O Water
O Soil
O Disease
O Air
Please help
Answer:
Disease
Explanation:
Water, Soil and Air are all biotic except for disease.
54:58
Hunter-gatherer societies traditionally occupied the same territories year-round in order to care for their livestock.
Please select the best answer from the choices provided
OT
F
Mark this and retum
Save and Exit
Next
Submit
Answer:
CORRECT ANSWER IS FALSE.
Explanation:
I JUST DID THE QUIZ
E2021
Answer:
False
Explanation:
Edge 2021 ;)
PLSSSS HELLLPPP
I’ll give brainiest!!!
Darcy put three healthy plants in pots. She put them in three places. Each plant had good soil, air, and water. After three weeks,
Darcy checked on the plants.
Based on the results, where do you think Darcy put plant #2?
es )
A)
in the shed
B)
under a tree
)
on the back deck
D)
in the front yard
Fr
Answer:
A)in the shed
Explanation:
Just did the usa test prep
You catch, tag, and release 35 fish back into a pond. Then, you catch 70 more fish, 12 of which have tags on them. What is the best estimate of the number of fish in the pond?
Answer:
204
Explanation:
The estimated total number of individuals in a population using the capture and recapture method is given by the following equation;
N = (M x C)/R
where N = estimates of the number of individuals in the population, M = number of individuals captured and marked the first time, C = total number of individuals captured (marked and unmarked) in the second attempt, and R = number of marked individuals captured in the second attempt.
In this case, M = 35, C = 70, and R = 12
Hence,
N = 35 x 70/12 = 204.16
Therefore, the estimated number of fish in the pond is 204.
What is the function of a coenzyme?
1. Binds to the substrate to raise activation energy
2. Inhibits the metabolic pathway of the enzyme
3. Couples with an enzyme to help remove or add electrons in order for the reaction to be catalyzed
4. Is a secondary protein complex that produces ATP
Right now we have the ability for genetic modification (plants, animals, diseases, or humans). Discuss a positive or a negative use and whether you agree or disagree with it.
Answer:
There are pros and cons in genetic modification.
Explanation:
Pros: It will help with plant growth and because of global warming it can help keep the plants alive. It can also help cure some diseases and help humans stay alive with what is coming for us in the future.
Cons: If we do this, we would gain more diseases and have new mutations going on in the world. The Plants may mutate and we may lose some types of animals to new diseases.
1. Which of the following refers to the process of an environment constantly changing?"
energy cycle
energy succession
ecological cycle
ecological succession
Answer:
I believe it's ecological succession.
Hope that helps!
Answer:
It's Ecological succession
5' GTA___ A A 3'
3' CATGCATT 5'
This segment of DNA has undergone a
mutation in which three nucleotides have
been deleted. A repair enzyme would replace
them with
A CGT.
B GCA.
C CTG
D GTA.
I’ll give you the brainliest if you answer with an explanation.
A. CGT
Explain- C pairs with G and A pairs with T. Vise verse.
The correct answer is A CGT. As repair enzyme would replace them with CGT.
The practical section of DNA is known as genes. Gene is the section of DNA that codes for a practical protein. Genes are inherited from mother and father to offspring. They convey genetic statistics from one technology to another.
What are the 4 bases of DNA?
CGT is an acronym for the 4 forms of bases located in a DNA molecule: adenine (A), cytosine (C), guanine (G), and thymine (T). A DNA molecule includes strands wound around every other, with every strand held collectively through bonds among the bases. Adenine pairs with thymine, and cytosine pairs with guanine.
Hence concluded that CGT is a segment of DNA that has undergone a
mutation in which three nucleotides have been deleted.
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"An organism is hungry, so it eats some food".
What is the stimulus and the response?
i need help with this bio question
Answer:
its C
Explanation:
Jonathan has type O blood. What must his parents be for Jonathan to get type O blood?
There are 4 possibilities
For questions 6-15 use one of the following choices for each question. The choices may be used more than
once. Just write the letter for the choice not the word
A. Mutualism
B. Commensalism
C. Parasitism
6. One organism is harmed in a relationship
7. Two organisms benefit from a relationship
8. A tree with a Spanish moss population is unaffected by the relationship
9. A population of mice destroys grass roots in a field
10. A plotist that lives in a termite intestine digests wood eaten by the termite
11. A small insect called an aphid harms the stems and leaves of rosebushes
12. Bacteria make Vitamin B12 in the human intestine
13. Your cat has a severe case of fleas
14. A mosquito stabs the skin on your arm and a bite develops
15. Two organisms live together, one benefits and the other is neither helped or harmed by the
relationship
6C, 7A, 8B, 9C, 10B, 11C, 12A, 13C, 14C, 15B
What is the ONLY way a female can be affected by a sex-linked trait?
Answer:
they can only be affected if their father is affected
A farmer wants to produce sweeter grapes using artificial selection. Which of these strategies can he use to achieve this goal?
Answer:
Crossbreed the two sweetest vines in the vineyard to produce new plants.
Explanation:
Artificial selection is the method used by the humans to produce traits in plants and animals according to teh desired thought. In this process of evolution, desirable characteristics of plants and animals are reproduced.
In the given excerpt, the farmer can adopt the method of crossbreeding two vines which are sweetest in order to produce sweeter grapes.
3. What do cells create that help them do their job?
I
Answer:
No entiendo
Explanation:
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