how do eukaryotic cells overcome the problems of finishing replication of dna in the gap left by the rna primer
Eukaryotic cells overcome the problems of finishing DNA replication by ligase enzymes that help to fill the gaps. They are fundamental enzymes during DNA replication.
Ligases and DNA replicationDNA replication is the process by which a molecule of DNA is duplicated in the S phase of the cell cycle.
The termination of this process (DNA replication) happens at the moment that replication forks meet on the same DNA stretch.
Ligases are fundamental enzymes that help to fill the remaining nucleotide gaps generated during DNA replication.
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According to the operon model, for the synthesis of an inducible enzyme to occur, the:.
The operon model explains the regulatory system of the gene expressions in the bacteria. An inducible enzyme will be synthesized if the substrate binds to the repressor. Thus, option B is correct.
What is the operon model?
An operon model is the representation of the genes that are closely related and is the regulation of the genetic mechanism in the bacteria. They consist of the structural gene, an operator, and a promoter.
The inducible enzyme in the operon model is produced if the substrate binds to the repressor. The substrate act like an inducer to promote the transcriptional process by inhibiting the activity of the repressor.
The inhibited repressor will not be able to bind the operator and hence RNA polymerase will be free to move and complete the process of transcription in bacteria and viruses.
Therefore, the substrate binds to the repressor so that an inducible enzyme is produced.
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The complete question is attached to the image below.
1. Sharks and marlin are fish, but dolphins are not. A. simple sentence B. compound sentence C. complex sentence
Answer:
Compound sentence
Explanation:
A compound sentence is made up of two independent clauses joined by a coordinating conjunction. In this case, it would be 'but'. Some other examples would be (for, and, nor, or, yet, or so)
Sharks and marlin are fish, but dolphins are not. The type of sentence is compound sentence. Thus option B is correct.
What are types of sentences ?
There are four different types of sentences such as Declarative/Statement Sentences helps in making statements and stating basic information, an opinion can be expressed by using them and it is the most prevalent in most academic writings and verbal speech.
For Examples, Students failed to complete their essays on time, My wife loves eating cake in the morning.
Exclamatory/Exclamation Sentences used to express deep emotions or feelings, can be either disbelief or happiness and finished with an exclamation point.
For Examples, I got an A in my research paper! , That movie was exciting! Imperative/Command Sentences defines when we giving demand or instruction, can either be negative or positive depending on a message.
For Examples, Do not stop!, Never speak to me like that again. Interrogative/Question Sentences is a type of simple sentence to understand as it helps in asking a question.
For Examples What time will you finish writing your English homework?
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Can someone help me with biology?
Answer:
Me, check my profile I answered biology questions. byw still middle scl but trying to help
A scientist notices that when she adds a small, watersoluble molecule to a dish of cells, the cells turn off transcription of a gene. She hypothesizes that the ligand she added binds to a(n) ______ receptor.
She hypothesizes that the ligand she added binds to an enzyme-linked receptor. Enzymes catalyze reactions.
What are enzymes?Enzymes are specific proteins that catalyze chemical reactions by lowering the activation energy of the reaction.
Enzymes can bind to specific substrates to phosphorylate them and thus activate a signaling pathway.
Enzymes are fundamental proteins that act during different metabolic processes in an organism.
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name all the cell organelles which are found in plant cell but not in animal cell
Answer:
Plant cells contain all of the same organelles as animal cells, including mitochondria, a nucleus, ribosomes, smooth and rough ER, Golgi apparatus, lysosomes, peroxisomes, cytoplasm, and a cell membrane. However, they also contain some subcellular structures that are absent in animal cells, such as chloroplasts , a vacuole, and a cell wall.
Explanation:
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What is the probability of having a child with a recessive trait if both parents are heterozygous for the trait
Answer:
If you are born to parents who both carry the same autosomal recessive gene, you have a 1 in 4 chance of inheriting the abnormal gene from both parents and developing the disease.
Explanation:
You have a 50% (1 in 2) chance of inheriting one abnormal gene. This would make you a carrier.
A strawberry company wants to breed a strawberry that has a thicker skin and stays fresh longer. How could this problem be solved through genetical engineering?
Answer:
i think they can use machines
Explanation:
because now a days many machines are there so i think all these kinds of work done by machines or its good and easy to do these things with machines.
be happyWhich is an example of a Gram-negative
bacteria?
Answer:
Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wall sandwiched between an inner cytoplasmic cell membrane and a bacterial outer membrane.
Explanation:
Hope this helps! :)
Answer:
E-Coli
Explanation:
<3
Which of the following is NOT a possible outcome for phosphorus after it is taken up and converted into organic phosphorus by plants?
A. It evaporates into the atmosphere.
B. It get consumed when consumers eat the producers.
C. It can be excreted by consumers and decomposed into the soil.
D. It can be washed into rivers or bodies of water.
Answer: I'm pretty sure the answer is A...
Explanation:
Well, It does not play a significant role. The phosphorus cycle is different compared to the water,carbon, and nitrogen cycle because it can not be found in the gas state.
Hope this helped :) LMK
Answer:
a
Explanation:
why is it so difficult to protect endangered species and habitats worldwide?
Answer:
here
Explanation:
Their environment contains consumable resources, which humans prioritize over the animals. Dolphins.
They ARE consumable resources. Whales.
There exist powerful systems (cultural, economic, government) which propagate consumption or exploitation. Tiger bones. Elephant tusks.
Certain species are obscure, ugly, difficult to care about, or are at inaccessible locations. Certain bats.
As long as humans eat 3 meals a day and have a place to live, basically nobody cares. So agents in power (governments, institutions) are hard to pressure.
The human population is increasing exponentially.
Which nervous system produces the fight-or-flight reaction?
Answer:
sympathetic nervous system
Have a great day!
Answer:
Sympathetic nervous system
Explanation:
The autonomic nervous system has two components, the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system functions like a gas pedal in a car. It triggers the fight-or-flight response, providing the body with a burst of energy so that it can respond to perceived dangers.
Plssss!!!!! someone help!!!!
The molecules in the box on the right are in _____
The box on the left has an area of high concentration and an area of low concentration. Scientists would say there is a concentration _____
Answer:
•the air,no longer in contact. •(I'm not sure but I think its )•gradient. a concentration gradient
The molecules in the box on the right are in low concentration gradient. The box on the left has an area of high concentration and an area of low concentration. Scientists would say there is a concentration high concentration gradient.
What is the concentration gradient?
The concentration gradient is the presence of a substance at a specific place. A low concentration gradient means when a substance is dispersed and present far from each other.
A high concentration gradient means when there is a large amount of substance present in a place. These words are used when there is transfer of molecules along the plasma membrane.
Diffusion and osmosis are the two processes by which the transfer of molecules happens.
Thus, a = low concentration gradient., b, = high concentration gradient.
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Which form of energy is NOT related
to the small particles that make up an
object?
A nuclear energy
B electrical energy
C chemical energy
D mechanical energy
Please help :)
Answer:
I think the answer is D
Explanation:
nuclear energy relates to nucleus
electrical energy relates to electrons
chemical energy relates to the elements
Free fatty acids and monoglycerides are transported across the microvillus with ________________transport and the glycerol by ___________________ transport during the mucosal phase of digestion.
Passive transport is used by free fatty acids and monoglycerides and the glycerol is transported by carrier-mediated transport during the mucosal phase of digestion.
What is cellular transport?It is the movement of molecules between the cell interior and the exterior through the cytoplasmic membrane.
Characteristics of cellular transportPassive transport is one where energy is not required for the substance to cross the plasma membrane, it transports part of the monoglycerides and fatty acids.Active transport is one where carrier proteins must move molecules against a concentration gradient, such as glycerol.Therefore, we can conclude that active and passive cellular transport is the transfer of molecules from one side of the cell membrane to the other.
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Explain how the same four nitrogen bases contribute to the variation seen between you and other humans.
Answer:.nitrates
.ammonia
.proteins
. ammonium salts
Explanation: the variations of the nitrogen bases are: [tex]NO3[/tex] (nitrate), which is found in the plant nodules that we feed on,
.Ammonia, which is excreted by us through urines, which also contains nitrogen, which when absorbed into the soil, form ammonium salts
.proteins, that we get when we feed on nitrogenous foods, which when we die they get decomposed into nitrates and ammonia.
.ammonium salts, teat are changed by the nitrifying bacterias into nitrogen gas which returns back in the atmosphere
.
The four nitrogen bases contribute to the variation between humans because the order of nucleotides determines phenotypic features associated with genetic inheritance.
In DNA, there are four types of nucleotides, each containing one different nitrogen base.The four nitrogen bases in DNA nucleotides are Adenine, Guanine, Cytosine, and Thymine.The linear order of these nucleotides in genes largely determines the phenotypic features associated with genetic inheritance.In conclusion, the four nitrogen bases contribute to the variation between humans because the order of nucleotides determines phenotypic features associated with genetic inheritance.
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`What do you mean by physiological functions for plants?
Answer:
Plant physiology deals with different plant structures and their functioning. It enables analyzing processes in plants, namely – photosynthesis, mineral nutrition, respiration, transportation, and ultimately plant development and growth which are traits displayed by living entities.
Explanation:
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In the past, diabetics used horse or cow insulin
to control their glucose levels. Today, as a result
of genetic engineering, human insulin can be
synthesized by bacteria. State one advantage
for a person with diabetes to receive genetically
engineered insulin rather than insulin taken
from a horse or cow. [1]
Answer:
Genetically engineered insulin is actually human insulin and is less likely to be rejected by the person.
Explanation: Hope this helps
One advantage for a person with diabetes to receive genetically engineered insulin rather than insulin taken from a horse or cow is that human insulin produced by bacteria is less likely to cause an allergic reaction.
Why animal based insulin bad?When animal insulin was used, some people with diabetes developed an allergic response to the foreign protein, causing discomfort and making the treatment less effective. Genetically engineered human insulin produced by bacteria is identical to the insulin produced by the human body, reducing the likelihood of an allergic reaction and making the treatment more effective.
Additionally, genetically engineered insulin can be produced in larger quantities, at a lower cost, and with greater consistency than animal-derived insulin.
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Which of the following statements BEST identifies each cell type based on her data table?
A
Cell A is an animal cell because it has centrioles, which are specific to animal cells for mitosis; Cell B is the plant cell because it has a cell wall and chloroplasts, which are specific to plant cells for cell integrity and photosynthesis; and Cell C is the bacterial cell because it has no nucleus and circular DNA, which are specific to bacterial cells because they lack membrane bound organelles and require simpler cellular functioning.
B
Cell A is a plant cell because it has small vacuoles and centrioles, specific to plant cells for photosynthesis; Cell B is an animal cell because it has large vacuoles and chloroplasts, which are specific to animal cells for storage; and Cell C is a bacterial cell because it has circular DNA and a flagellum, which are specific to bacterial cells for simpler cellular functioning and cell movement, respectively.
C
Cell A is a plant cell because it has small vacuoles and centrioles, which are specific to plant cells for photosynthesis and mitosis; Cell B is a bacterial cell because it has large vacuoles and a cell wall, which are specific to bacterial cells for storage and protection; and Cell C is an animal cell because it has cell wall and flagellum, which are specific to animal cells for protection and movement throughout the body.
D
Cell A is a bacterial cell because it has centrioles and small vacuoles, which are specific to bacterial cells for binary fission and storage; Cell B is a plant cell because it has a cell wall and chloroplasts, which are specific to plant cells for cell integrity and photosynthesis; and Cell C is an animal cell because it has a cell wall and flagellum, which are specific to animal cells for protection and movement throughout the body.
Answer: answer A
Explanation:
All of the cells definitions are correct and that’s how we learned which one was different
All human languages have several basic sounds in common called pheromones Answer A: pheromones A semantic units Answer B: semantic units B syntactic units Answer C: syntactic units C morphemes Answer D: morphemes D phonemes
All human languages which have the several basic sounds in common is called or referred to as phonemes and is denoted as option D.
What is Phonemes?This is referred to as a term which consists of a unit of sound that can distinguish one word from another in a particular language such as english language etc.
In English there are 44 phonemes and a common example is element p in “tap,” which is used to differentiate other words such as “tab,” “tag,” etc from one another and is therefore the reason why option D was chosen as the correct choice.
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Which region of the scapula is found on the anterior surface.
Answer:
The subscapular fossa is located on the anterior surface of the scapula.
Explanation:
brainly Carolus Linnaeus developed a classification system very close to the one that we use today. In particular, we still follow the protocol of giving each unique species a name using binomial nomenclature, a two-word naming system. Which statements describe the major importance of our current classification system
The major importance of our current system of classification is that it helps to correctly identify living organisms.
This is because the classification system gives us information concerning the characteristics of each organism.
What is binomial system of nomenclature?This is the system used in naming living organisms. Every living thing is given two different names:
The generic name
The specific name
The generic name is the name of the genus the organisms belongs to while the specific name is the name of the species to which it belongs.
These two names together ( genus and species names ) are collectively known as the scientific name
For instance:
The scientific name for :
Grasshopper is Valanga nugriconis
Valanga is the genus which grasshopper belongs to and nigriconis is the name of its species
Pineapple is Ananas comosus
Orange is Citrus sinensis
What is classification of living organisms?This is the process of grouping living organisms together based on some unique characteristics
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As of 2019, the world's human population is growing at a rate of around 1.0% Which of the
numbers below best estimates the doubling time for the world's human population?
A. 40years
B. 20 years
C. 70 years
D. 10 years
What is the difference between the somatic and autonomic division of the nervous system?.
Answer:
The somatic nervous system is associated with activities traditionally thought of as conscious or voluntary. The autonomic nervous system controls our internal organs and glands and is generally considered to be outside the realm of voluntary control.
When a substance crosses an epithelial barrier by moving through an epithelial cell, it is said to move via the ______..
Secretory proteins are:____.
a. produced by ribosomes on the smooth endoplasmic reticulum.
b. chemically modified in the nucleus.
c. produced by the cell for internal use.
d. released from the cell through the plasma membrane.
The correct answer is Secretory proteins are produced by ribosomes on the smooth endoplasmic reticulum.
What are secretory proteins?Secretory proteins include both endocrine and exocrine proteins that are secreted by cells. Secretory proteins are found in a wide variety of hormones, enzymes, toxins, and antimicrobial peptides. Protein secretory molecules are created by the endoplasmic reticulum.
An average of 3-5 amino acids are produced by ribosomes at the cytosolic face of the ER in mammalian cells every second.
The intestinal epithelium is composed of the enteroendocrine, Paneth, goblet, and absorptive enterocyte cell lineages as well as three other types of secretory cells. The fifth and least typical type of intestinal cell is called a tut cell.
Hence, the correct answer is Secretory proteins are produced by ribosomes on the smooth endoplasmic reticulum.
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Why is it important to post-rinse when pipetting volumes less than 20 microliters?.
Harlequin shrimp _______. A. Control starfish populations b. Clean parasites from select fish species c. Control tubeworm populations d. Hide within coral using their special camouflage Please select the best answer from the choices provided A B C D.
Harlequin or Hymenocera picta is a shrimps species are found in the water of the Pacific and Indian oceans. They control starfish populations.
What is Harlequin shrimp?They are also called Hymenocera picta scientifically and are majorly habitats to the coral of the Pacific and the Indian oceans. They belong to the phylum Arthropoda and are invertebrates.
They are two inches in length and specifically eats starfishes. Their feeding mechanism enables the population of the starfish to be balanced as starfishes are the primary food source for them.
They get nutrition and the essential energy from eating starfishes, they eat their prey in a particular fashion like first their tubes, soft tissues followed by central disk.
Therefore, option A. they control the starfish population is correct.
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Answer: A
Explanation:
What is a group of specialized cells called when they work together to perform a specific function?
Atom
Organ
Organ system
Tissue
Answer:
Tissue, like a muscle.
Explanation:
A tissue, such as a muscle, is formed through the cooperation of groups of specialized cells. Different tissues are then combined together to create organs, which are bigger functional units. Each cell, tissue, and organ has a unique structure and set of functions that benefit the entire organism.
How is a plateau different from a fault-block mountain?
Answer:
A plateau forms when a flat block of rock is uplifted, and a fault-block mountain does not
Answer:
How is a plateau different from a fault-block mountain? A plateau forms when a flat block of rock is uplifted, and a fault-block mountain does not. ... A scientist discovers a rock that she determines to be a fault.