Answer:
The correct answer is: a. A single mRNA can be translated simultaneously by several ribosomes.
Explanation:
Ribosomes are structures composed of ribosomal RNA (rRNA) that direct the process of translation, with the help of special proteins and key molecules called transfer RNA (tRNA) that are 'able to read' the codons in the mRNA. To help with this 'reading', ribosomes move through the mRNA strand as the translation moves forward, placing the anticodons presented by the tRNA molecules with their specific match - each mRNA codon - forming a strand of amino acids.
To ease the process in the cases where the molecule to be translated is a polypeptide, groups of ribosomes form a polysome and they all translate one single mRNA strand at the same time. Each of these ribosomes starts translating from the first codon and stop when the stop codon appears.
The true statement regarding the machinery of translation is ; ( A ) A single mRNA can be translated simultaneously by several ribosomes
Translation is the process of producing protein with the use of RNA ( i.e. the process of protein synthesis from an mRNA template ) during translation the code found in the template is converted into an amino acid sequence.
Ribosomes are composed of rRNA which directs the process of translation with the proteins and key molecules such as tRNA.
Hence we can conclude that the true statement regarding the machinery of translation is A single mRNA can be translated simultaneously by several ribosomes.
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why it is important to reduce friction in moveable joints
Answer:
Smooth cartilage prevents friction as the bones move against one another. in freely moveable joints, the entire joint is enclosed inside a membrane filled with lubricating synovial fluid, which helps to provide extra cushioning against impact.
Sweet yellow tomatoes with a pear shape bring a high price per basket to growers. Pear shape, yellow color, and terminal flower position are recessive traits produced by alleles, f, r, and t, respectively.
The dominant phenotypes for each trait – full shape, red color, and axial flower position – are the product of dominant alleles F, R, and T. A farmer has two pure-breeding tomato lines. One is full, yellow, terminal and the other is pear, red, axial. Design a breeding experiment (crosses) that will produce a line with tomato that is pure-breeding for pear shape, yellow color, and axial flower position.
Answer and Explanation: The farmer has a pure-breeding line of tomato means the farmer has a tomato with genotype FFrrtt while the other line of tomato has genotype ffRRTT.
The cross between these lines gives a F1 generation of heterozygous full, red and axial or FfRrTt.
With an individual of F1 crosses with another individual of F1, the Punnet Square will be:
FfRrTt x FfRrTt
1) Dividing each characteristics, for simplicity:
F f
F FF Ff
f Ff ff
R r
R RR Rr
r Rr rr
T t
T TT Tt
t Tt tt
Analysing Punnett squares, we notice the line wanted (ffrrTT) will be produced, when an individual of F1 generation cross with another individual with the same generation.
which substance compose the backbone of DNA
Answer:
phosphate and deoxyribose
Explanation:
Answer:
Phosphates and sugars
Explanation:
HELP PLEASEEE
Once a population reaches its carrying capacity, the growth rates
are able to return to what they were before resources were
limited.
SELECT AN ANSWER
True
False
Answer:
T :)
Explanation:
What type of scientist is most likely to study to cooling of lava after a volcanic eruption
If plant cells have both chloroplast and mitochondrial, What will likely happen to the glucose and oxygen once they are produced in photosynthesis?
Part A
Scientific inquiry consists of a(n)
approach to resolving a question.
View Available Hint(s)
linear
fail-safe
implausible
stepwise
Answer:
The correct Hint is D) Stepwise
Explanation:
Scientific inquiry usually involves a process through which scientists try to resolve tough problems.
Many people have proposed various steps to the methodology of scientific inquiry. There is one that has 3 steps, one that has 5 steps, and another that has 7 steps.
The 7 steps of scientific inquiry are given below:
Defining the Question. Stating the Research. Postulating the Hypothesis. Carrying our the Experiment. Making Observations. Reaching Results/Conclusion.Communicate. Present/share your results. Replicate.Cheers
Choose the following true statement:
a)When cells are finished with their tasks, they work, they die, and are replaced by new cells
b)Once a cell is made, the body will not regenerate new ones.
c)There are limited amount of cells the body can produce
d)All cells will continuously multiply forever.
Answer:
D
Explanation:
because. when one cell dies another is replaced so it gos on forever and ever
summer squash purchased at your local grocery store would be biologically classified as a
Answer:
considered a vegetable.
Explanation:
What is the role of DNA polymerase in DNA replication?
A. It ties the chunks of DNA together.
B. It creates the replication fork.
C. It checks the DNA for errors.
D. It breaks apart the bases.
Answer: it checks the DNA for errors
Explanation:
Just took test
Answer:
A. ties chunks of dna together, took the test
Explanation:
I need help please :(
Answer:
The answer willk be option C- Under the age of 20
What macromolecule is made from carbon dioxide?
Answer:
Plants and algae convert carbon dioxide to organic matter through the process of photosynthesis, the energy of light. Carbon is present in all life: All living things contain carbon in some form, and carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates.
All life has some form of carbon, and this element is the main building block of macromolecules like proteins, lipids, nucleic acids, and carbohydrates.
What is macromolecule?The general formula for carbohydrates is Cn (H2O)n, and they are biological macromolecules consisting of carbon, hydrogen, and oxygen. Saccharides are the precursors to all carbs. These big molecules generate energy that powers the body's physiological processes.
They are made up of thousands of atoms that are covalently bound. The polymerization of numerous smaller molecules known as monomers produces large molecules. Large non-polymeric molecules like lipids and biopolymers like nucleic acids, proteins, and carbohydrates are the most prevalent macromolecules in biochemistry.
Therefore, through the process of photosynthesis, which uses light energy, plants and algae transform carbon dioxide into organic matter.
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what do the nucleus cell, mitohondira cell, cell wall, chloroplast cell, cyptoplasm cell, and cell mabrane do?
Answer:
nucleus- this is where all genetic information is stored.
mitochondria- where respiration occurs
cell wall- gives the cell structure and prevents it from bursting
chloroplast- contain chlorophyll which stores energy from the sun for photosynthesis
cytoplasm- where chemical reactions occur
cell membrane- controls what comes in and out of the cell.
mitochondria: where respiration occurs
cell wall: gives the cell structure and prevents it from bursting
chloroplast: contain chlorophyll which stores energy from the sun for photosynthesis
cytoplasm: where chemical reactions occur
cell membrane: controls what comes in and out of the cell.
The photos below show specialized cells of a plant.
Which function are these cells specialized for performing?
Answer:
Photosynthesis
Explanation:
The green structures in the cell are chloroplasts. They are green because they contain the green pigment chlorophyll. Chlorophyll traps light energy and uses it to produce sugar molecules as food for the cell.
Type the correct answer in the box.
Write the full form of the abbreviation.
The full form of BUN is what
Answer:
Blood Urea Nitrogen
Explanation:
I hope this helps :)
Which of the following animals is successful because it moves quickly, reproduces rapidly, and has a waterproof external skeleton?
A. Ant
B. mouse
C. Bird
D. Squirrel
List the layers of the atmosphere
Answer:
troposphere
stratosphere
mesosphere
thermosphere
exosphere
Troposphere, Stratosphere, Mesosphere, Thermosphere, Ionosphere, and Exosphere
Explanation:
Compare and contrast evaporation and condensation.
Answer:
By definition, evaporation is a process where water changes into vapour. Condensation is the opposite process where water vapour is converted to tiny droplets of water. Evaporation occurs before a liquid reaches its boiling point. Condensation is a phase change regardless of the temperature.
Which of the following statement is true:
Reptiles do not live very long.
Amphibians and reptiles are born similar in size.
Amphibian and reptiles are similar vertebrates.
Amphibians and reptiles eat identical organisms.
Answer:
C or D
Explanation:
Answer:
Amphibians and reptile are somewhat alike and they are not born the same size so I am leaning more towards c
Explanation:
what is the last step in scientific method
Answer:
Step 1- Question.
Step 2-Research.
Step 3-Hypothesis.
Step 4-Experiment.
Step 5-Observations.
Step 6-Results/Conclusion.
Step 7- Communicate. Present/share your results. Replicate.
Answer:
1. Ask a question
2. Hypothesis
3. Prediction
4. Experiment
5. Analyse Data
6. Conclustion
Explanation:
The last step in a scientific method is the Conclusion. Edgenuity 2020. Just took the assignment.
I need help with this please help me!!
Answer:
i need help with this too somebody help
Explanation:
PLEASE HELP ASAP WILL MARK BRAINLIEST!
-
list five different system interactions for the topic of acid rain
Answer:
1. Effects of Acid Rain on Fish and Wildlife
The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. As it flows through the soil, acidic rain water can leach aluminum from soil clay particles and then flow into streams and lakes.
2. Effects of Acid Rain on Plants and Trees
Dead or dying trees are a common sight in areas affected by acid rain. Acid rain leaches aluminum from the soil. That aluminum may be harmful to plants as well as animals. Acid rain also removes minerals and nutrients from the soil that trees need to grow.
3. Buffering Capacity
Many forests, streams, and lakes that experience acid rain don’t suffer effects because the soil in those areas can buffer the acid rain by neutralizing the acidity in the rainwater flowing through it. The soil becomes thin because of this and lacks the ability to adequately neutralize the acid in the rain water. As a result, these areas are particularly vulnerable and the acid and aluminum can accumulate in the soil, streams, or lakes.
4. Episodic Acidification
Melting snow and heavy rain downpours can result in what is known as episodic acidification. This can result in short-term stress on the ecosystem where a variety of organisms or species may be injured or killed.
5. Nitrogen Pollution
It’s not just the acidity of acid rain that can cause problems. Acid rain also contains nitrogen, and this can have an impact on some ecosystems. For example, nitrogen pollution in our coastal waters is partially responsible for declining fish and shellfish populations in some areas. In addition to agriculture and wastewater, much of the nitrogen produced by human activity that reaches coastal waters comes from the atmosphere.
Explanation:
Not sure if this is what the question was asking for.
Acid rain is defined as rain or any other kind of precipitation that is particularly acidic, including high quantities of hydrogen ions. Acid rain has a pH lower than drinking water, ranging from 4-5 on average.
What are the different system interactions for acid rain ?1. Acid Rain's Impact on Fish and Wildlife
Acid rain's biological consequences are most visible in aquatic areas such as streams, lakes, and marshes, where it can affect fish and other species. Acidic rain water can drain aluminum from soil clay particles as it passes through the soil and into streams and lakes.
2. Acid Rain's Effects on Plants and Trees
In acid rain-affected locations, dead or dying trees are prevalent. Aluminum is leached from the soil by acid rain. Aluminum may be damaging to both plants and animals. Acid rain also depletes the soil of minerals and nutrients required by trees to develop.
3. Capacity for Buffering
Many woods, streams, and lakes that experience acid rain remain unaffected because the soil in such locations can buffer the acidity in the precipitation flowing through it. As a result, the soil becomes thin and unable to effectively neutralize the acid in the rain water. As a result, these locations are more sensitive, and the acid and aluminum can build up in the soil, streams, and lakes.
4. Acidification on Occasional Basis
Melting snow and strong rain can cause a condition known as episodic acidification. This can cause short-term stress in the environment, injuring or killing a range of creatures or species.
5. Nitrogen Pollution
Not only may the acidity of acid rain cause difficulties. Acid rain includes nitrogen, which can have an influence on some ecosystems. Nitrogen contamination in our coastal waterways, for example, is partly to blame for dwindling fish and shellfish populations in some locations. Aside from agriculture and sewerage, much of the nitrogen created by human activities that reaches coastal waterways originates in the atmosphere.
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to check temperature in large or thick foods, you should:
-an infrared thermometer
-a bimetallic stemmed thermometer
-a thermocouple thermometer
-a pop up thermometer
Answer: A bimetallic stemmed thermometer:
Explanation:
Which best describes the outcome of DNA replication?
1) The new DNA molecule is identical to the original DNA.
2) The new DNA molecule is synthesized from amino acids.
3) The new DNA molecule has a different number of codons.
4) The new DNA molecule is single-stranded.
1. Which level of biological organization, from smallest to largest, is
correct? *
A. Organ System, Organ, Tissue, Cell
B. Cell, Organ, Tissue, Organ System
C. Cell, Tissue, Organ, Organ System
D. Tissue, Cell, Organ, Organ System
Answer:
Cell, Tissue , Organ, Organ System
PLEASE HELP I WILL MARK YOU AS BRAINLIST
Answer:
answer is (c)
Explanation:
.. ......
PLEASE HURRY A mutation occurs when a base in the DNA sequence is replaced by a different base.
Answer: Mutations
Explanation:
A substitution mutation occurs when specific bases (A, T, C or G) in a gene are swapped for different ones. This type of mutation doesn't cause a difference in the number of bases like insertion or deletion mutations do. Substitution mutations just switch out one or more bases for different ones.
have a good a day
Answer:
If you are asking A BLANK mutation occurs when a base in the DNA sequence is replaced by a different base, the answer is substitution.
Explanation:
I took the test
When an enemy cell is present, a(n) __________ secretes perforins, which bore a hole in the enemy cell membrane.
a. interleukin
b. antibody
c. interferon
d. natural killer cell
e. opsonization
The correct answers is D. Natural killer cell
Explanation:
Natural killer cells are a type of cell in the immune system. These differ from other cells because these are innate, this means they attack all enemy cells or pathogens and are not specific. Also, they are the first general immune defense.
Moreover, the role of these cells to attack any enemy cell including cancer cells is possible due to specific chemicals or substances these cells release. One of these is perforins, which are mainly released by natural killer cells and destroy these by creating lesions in the cell membrane. According to this, the correct answer is D.
How does the formation of NAD+ differ between aerobic and anaerobic respiration?
A. NAD+ is formed in aerobic respiration by a fermentation process and formed in anaerobic respiration by oxidation of NADH.
B. NAD+ is formed by a fermentation process in anaerobic respiration by the conversion of pyruvate into lactate and by simple oxidation of NADH in aerobic respiration.
C. Under aerobic conditions, the electron acceptor is a molecule other than oxygen for NAD+ production, whereas under anaerobic conditions the electron acceptor is oxygen.
D. NAD+ is formed by the breakdown of pyruvate to form oxaloacetate in anaerobic respiration whereas in aerobic respiration it is formed by the breakdown of pyruvate into lactic acid or alcohol.
Answer:
B. NAD+ is formed by a fermentation process in anaerobic respiration by the conversion of pyruvate into lactate and by simple oxidation of NADH in aerobic respiration.
Explanation:
Nicotinamide adenine dinucleotide (NAD) is an important coenzyme that may exist in two different forms: oxidized (NAD+) and reduced (NADH). The fermentation is an anaerobic oxidation-reduction reaction where pyruvate and NADH are reactants, while lactate and NAD+ are products generated by the oxidation of NADH to NAD+ and pyruvate to lactate, respectively. On the other hand, during aerobic respiration, NADH generated by glycolysis is oxidized to form NAD+ by the donation of its electrons to reduce pyruvate to lactate. Subsequently, NAD+ is reused in glycolysis (again) in order to generate more molecules of ATP.
Why am I smart in some subjects but not others?
Answer:
it goes with your interest
Answer:
The subject you are smart in is the subject you are more interested in but you also would like all subjects and progress great in them you just have to find the right learning space or techniques
Explanation:
