evaluate the statements below and determine which is the best reason that bacterial cells use operons and polycistronic rna.
Answers
Given what we know about bacterial cells and their genetic mechanisms we can confirm that they use operons and polycistronic RNA for efficiency.
Bacterial cells are vastly different from human or animal cells. Some of these differences include:
Lack of compact DNALack of organelle surrounded by plasmatic membranesThey have cell wallsMay possess flagellaand many others.
Among these differences is the way in which they encode for the proteins the bacteria will produce. Unlike human cells, bacteria use polycistronic RNA. Where a human strand of mRNA will carry the genetic message to create one protein, the polycistronic mRNA of a bacterial cell will provide the information necessary to create multiple distinct proteins.
Bacteria use this in conjunction with operons, to create very efficient protein manufacturing processes. Operons are sections of DNA in which proteins with similar functions are grouped together in order to make it easier to create the polycistronic mRNA strands.
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Related Questions
6. Challenge: Based on the weathering patterns, guess the rock type shown in each photo.
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How do animals cause erosion.
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Answer:
Some animals weather rocks by scraping them as they feed. Other animals change Earth's surface by burrowing into it and moving material. Too many animals in one place can destroy most of the plants, leading to faster erosion.
If too many animals graze the same land area, the animals’ hooves pull plants out by their roots. A land is overgrazed if too many animals are living there. Grazing animals can cause erosion if they are allowed to overgraze and remove too much or all of the vegetation in a pasture.
Explanation:
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cuales son las adaptaciones para el ecosistema acuatico
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Answer:
diseño aerodinámico, aletas
Which of the following sentences state a significant conclusion that Gregor Mendel drew from his experiments with pea plants? Traits are inherited in discrete units and are not the result of "blending." Genes are composed of DNA. Recessive genes occur more frequently in the F1 generation than do dominant ones. There is considerable genetic variation in garden peas.
Answers
Mendel concluded that the alternative forms of each trait are coded by discrete factors, which were called alleles that combine in pairs to express the trait. Traits are inherited in discrete units and are not the result of "blending."
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After making many crosses that involved different traits -such as plant height, or flower colors-, Mendel observed that, per trait, the F1 only expressed one of the alternative forms, while de other one disappeared.
Mendel named dominant the expressed variant.
Mendel then let these new plants auto pollinate and observed the results in the second generation, F2.
He saw that the variants that had previously disappeared among the F1, reappeared again. Both alternatives for each trait were present in the F2.
Mendel named recessive the second alternative variant.
Mendel explained his results by arguing that discrete factors were responsible for these phenotypes.
These factors should have been present in the F1 in pairs. One of them came from one parental plant, and the other factor came from the other plant. These factors separated again during sex cells formation, producing two types of gametes, each with only one factor.Mendel conclusion about his experiments was that per trait -flower color of plant length-, each plant had a pair of factors -which he named alleles-, and that each factor coded for one of the alternative forms of the traits -white or purple, tall or short-.
He thought that alleles separate -segregate- during the process of gamete formation.
The First Mendel's Law is the first conclusion he took about his experiments and is known as the segregation principle.
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Which soil-based compounds do plants use to create amino acids from glucose?
Answers
Answer:
Nitrates are the soil-based compounds plants use to create amino acids from glucose
Explanation:
Nitrates soil-based compounds do plants use to create amino acids from glucose.
Crossing over is a process that occurs during formation of gametes. How does crossing over lead to genetic variation in offspring?
Answers
Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other.
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Genes which are expressed all the time.
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Which part of the nerve cell houses the nucleus?
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B. Cell body
Step-by-step explanation:
Says B is correct lol
Answer:
B. Cell body is correct (second posting of THIS)
Explanation:
HOW did this answer get deleted? I'm posting again to see if it stays or is someone reporting correct answers? I highly recommend EVERYONE post CORRECT results to quiz let instead of this site
Almost end of semester, HELP!!
Specialized structures are expressed with the help of mRNA. What role does mRNA play? (5B)
Assisting with replication by producing glucose
Creating bonds to form large polymers
Providing information from DNA that is used to form proteins
Making energy available for cellular activities
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Answer:
The answer is C Providing information from DNA that is used to form proteins
Explanation:
i took the test
The statement that demonstrates the role that mRNA play in protein synthesis is as follows:
It provides information from DNA that is used to form proteins.Thus, the correct option for this question is C.
What is Protein synthesis?Protein synthesis may be defined as a type of biological process through which polypeptide chains are formed from coded combinations of single amino acids inside the cell. The process of protein synthesis terminates with the help of two processes:
Transcription.Translation.The process of transcription involves the copying of a DNA sequence of a gene in order to make an RNA molecule. This RNA molecule is known as mRNA which determines the linkage of DNA from the manufacturing of the proteins. This process is carried out in the nucleus of the cell.
While the process of translation involves the synthesis of proteins using the genetic information carried in messenger RNA (mRNA). This process is carried out in the cytoplasm of the cell.
Therefore, the correct option for this question is C.
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where would the majority of the dna be located within a eukaryotic cell?
Answers
Answer:
cell nucleus
In eukaryotic cells, most DNA is located in the cell nucleus (though some DNA is also contained in other organelles, such as in the mitochondria and the chloroplast in plants). Nuclear DNA is organized into linear molecules called chromosomes.
Explanation:
Describe prokaryotic cells. Include general characteristics and indicate the one feature that eukaryotic cells have that prokaryotic cells do not.
Please no links!
Answers
Answer:
prokaryotic cells — e.g. Bacteria
eukaryotic cells — e.g. Animal/Plant cells
Prokaryotic Cells are unicellular organisms that don’t have a nucleus, but have their DNA unbound (or uncompressed) within the cells cytoplasm, they also have circular structures (or rings) called plasmids which carry additional Genetic Information.
Specific Example: A bacterium is an example of a prokaryotic cell, and it has a cell wall, cell membrane, and even a capsule.
One feature that Eukaryotic cells have which Prokaryotic cells don’t is a Vacuole (this is just one feature).
Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and don’t have organelles. Many also have a capsule or slime layer made of polysaccharide (ignore this word if you havent learn about it yet).
receptors for neurotransmitters are of primary functional importance in assuring one-way synaptic transmission because they are mostly found on the _____.
Answers
Answer:
The axonal membrane (place as brainliest so others know its correct)
Receptors for neurotransmitters are of primary functional importance in assuring one-way synaptic transmission because they are mostly found on the Axonal membrane.
What are Neurotransmitters?Neurotransmitters may be defined as the type of chemical substances that are correspondingly liberated at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse or junction. They are released in the location known as the synaptic cleft.
The receptors of these neurotransmitters are present in the plasma membrane of postsynaptic cells which selectively bind the transmitter. They are integral membrane glycoproteins with multiple transmembrane segments.
Some examples of neurotransmitters may include serotonin, GABA, dopamine, acetylcholine, etc.
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Edpuzzle: Fermentation - Amoeba Sisters
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Answer:
=amoeba sisters
Explanation:
Mastication is performed by which of the following accessory digestive organs?
Answers
Answer:
d. All of the above
Explanation: is correct
You are infected with a pathogen; it is your first exposure to this pathogen. The first antibody types that will eventually appear in your blood to help fight this infection will be:
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If it is the first time that this pathogen comes into contact with the immune system, IgM antibodies are produced, which are the first type of antibodies produced against a certain microorganism.
Immunoglobulins are molecules that intervene in defense processes against microorganisms and infections.
Each type of immunoglobulin is specific against a certain antigen, this is what allows an immunological memory to exist, which is obtained when coming into contact for the first time with a certain microorganism.IgM is the first immunoglobulin synthesized by the neonate by itself, and it is also the first to appear during the primary response, which lasts an average of three weeks and then disappears.In general, the production of IgM antibodies precedes that of IgG, the concentration of antibodies can be high, plateau for a few days and then decrease rapidly.Therefore, we can conclude that when the immune system first comes into contact with an antigen, a primary response occurs; mediated by IgM antibodies.
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the three steps that are required for dna replication are
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Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.
The three steps that are required for DNA replication are initiation, elongation and termination.
What is DNA replication ?The process in which DNA of a cell under go duplication to produce two copies during S-phase of cell cycle called as DNA replication.
It involves 3 steps such as initiation step where the origin of replication of DNA molecule undergo unwinding into two DNA strands.
An incomplete unzipping by forming replication fork is created is catalyzed by the helicase enzyme.
Secondly in elongation step the DNA polymerase enzymes make the complementary sequence against each parent template strand.
It is an unidirectional, one strand which is synthesized in a continuous manner called leading strand, the strand which is synthesized in a discontinuous manner called lagging strand with Okazaki fragments.
Termination occurs in the last step, when the parent molecule has been completely replicated.
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help plsss
Explain the effect of viruses on living organisms.
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Answer:
Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue. Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce
Basal bodies are most closely associated with which of the following cell components?.
Answers
DNA molecules separate into single strands which are then used to construct two identical strands of DNA this process ensures genetic
A)consistency
B)variability
C)diversity
D)reduction
Answers
Answer: A)consistency
Explanation:
Which procedure will determine if water temperature affects the weathering of sedimentary rocks?
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Answer:
Sedimentary.
Explanation:
Sedimentary will determine if water temperature affects the weathering of sedimentary rocks.
which parts of the monomers involved in the dimer formation
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Answer:
A dimer (/ˈdaɪmər/) (di-, "two" + -mer, "parts") is an oligomer consisting of two monomers joined by bonds that can be either strong or weak, covalent or intermolecular. The term homodimer is used when the two molecules are identical (e.g. A–A) and heterodimer when they are not (e.g. A–B).
What is the correct abbreviation for pan troglodytes (chimpanzee)?.
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Answer:
The correct abbreviation for Pan Troglodytes, which is the scientific name for chimpanzees, is PTR.
Explanation:
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Which nucleic acid moves the code for protein synthesis from the nucleus to the ribosomes?
A. dRNA
B. tRNA
C. rRNA
D. mRNA
Answers
Answer:
mRNA
Explanation:
enjoy mate
Answer:mRNA
Explanation: Just had this unit.
What happens to the states of matter when the temperature changes
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They may either release heat or gain heat. With a temperature increase, the kinetic energy increases and the state of matter will increase (example, ice to water aka solid to liquid)
If the temperature decreases, then the kinetic energy decreases and the state of matter will decrease (example, water vapor to water aka gas to liquid)
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classify the materials that undergo decay. write decay and non-decay in the space provided for
1. fish
2.stick
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classify the materials that undergo decay. write decay and non-decay in the space provided for 2) stick
what is genetic seeds
Answers
Answer:
seeds
Explanation:
seeds
what modern day scientist use to learn the Ordovician Period
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Rocks from the Ordovician Period contain evidence that plants began colonizing dry land at this time. Most experts agree that the ancestors of land plants first evolved in a marine environment, then moved into a freshwater environment and finally onto land.
Ordovician Period, in geologic time, the second period of the Paleozoic Era. It began 485.4 million years ago, following the Cambrian Period, and ended 443.8 million years ago, when the Silurian Period began. Ordovician rocks have the distinction of occurring at the highest elevation on Earth—the top of Mount Everest.
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Sưa Sống ở đâu cách di chuyển cấu tạo tao dinh dưỡng bằng gì
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Explanation:
Sưa Sống ở đâu cách di chuyển cấu tạo tao dinh dưỡng bằng gì
can you write questions in english
in DNA, ________ always forms hydrogen bonds with Guanine (G)
Answers
Answer:
in DNA, Cytosine always forms hydrogen bonds with guanine
hope help you
Answer:
cytosine
Explanation:
The cell theory states that
(a) all organisms are made of one or more cells.
(b) all cells come from already existing cells.
(c) all the life functions of organisms occur within cells.
(d) all of the above
Answers
Answer:
All of the above
Explanation:
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