if organisms used only twelve different amino acids to build proteins instead of twenty, what would be the smallest number of dna or rna nucleotides needed to code for an amino acid?
Answers
The minimum number of DNA or RNA nucleotides required to code for an amino acid is 2, which would be the case if organisms only employed twelve different amino acids to construct proteins rather than twenty.
Amino acids: what are they?Amino acids are the building components of proteins. An extensive chain of amino acids makes up proteins. There are countless different types of proteins in your body, each of which has a vital function. Each protein has a unique arrangement of amino acids.
The protein can have many forms and perform a number of biological roles depending on the sequence. You can compare amino acids to the letters of the alphabet. You can create new words by combining letters in novel ways. Similar to how proteins are made, amino acids can be combined in many ways to create a variety of proteins.
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Related Questions
which reaction is not a reduction–oxidation reaction?
Answers
Answer:
Explanation:
The reaction that does not involve reduction-oxidation (redox) reactions is:
2H2O(l) → 2H2(g) + O2(g)
This is a decomposition reaction in which water (H2O) is broken down into its component elements, hydrogen (H2) and oxygen (O2). This reaction does not involve the transfer of electrons, which is a key characteristic of redox reactions.
Redox reactions are chemical reactions that involve the transfer of electrons between reactants, resulting in the oxidation of one species and the reduction of another. In these reactions, one reactant loses electrons (undergoes oxidation) while another reactant gains electrons (undergoes reduction).
Examples of redox reactions include the combustion of fuels, such as the burning of wood or coal, and the reactions that occur during photosynthesis and cellular respiration.
How is the age of the earth used as evidence of evolution?
Answers
Answer:
Explanation:
All radiometric evidence points to the age of the Earth as about 4.54 billion years old. The old age of the Earth is evidence for evolution, a change in the genetic makeup of a population over time.
Answer:
The age of the earth can be used as evidence of evolution because it withholds the past that we are capable of uncovering bit by bit. We excavate fossils buried in the ground which we use accordingly. The fossil record reveals that the deeper you go, the farther back in history you unearth. This is known as the Law of Superposition. With these fossils, we can compare and contrast the anatomy of closely related organisms and possibly uncover vestigial structures. All of which is evidence that evolution has taken place.
____________________ have beautiful glass-like shells.
Answers
Answer:
Glass FrogsGlasswing ButterflyBarreleyeGlass OctopusCrocodile IcefishTortoise Shell BeetleSalpsTransparent Sea CucumberGlass SquidJellyfish
Explanation:
Mixtures will not be represented by a_____
Answers
Answer:
symbol/chemical formula
Explanation:
If a mutation has no effect on fitness, it may stay in the gene pool indefinitely.
TRUE/FALSE
Answers
The given statement "If a mutation has no effect on fitness, it may stay in the gene pool indefinitely" is true because If a mutation has no effect on fitness, meaning it neither enhances nor reduces an organism's ability to survive and reproduce.
It is considered neutral in terms of natural selection. In this case, the mutation can persist in the gene pool indefinitely. Since natural selection acts on traits that affect an organism's fitness, mutations that have no impact on fitness are not subject to selective pressures. As a result, these neutral mutations can accumulate and persist in a population without being eliminated by natural selection.
Over time, the frequency of these neutral mutations may fluctuate due to genetic drift, migration, or other factors, but they can remain in the gene pool over generations. It's important to note that even though a neutral mutation may persist, it may still be lost or go to fixation in a population due to random chance or other evolutionary forces.
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Help ASAP! Ty boys and girls
Answers
Answer:
a)
Explanation:
not 1000% sure if that is correct but I hope it still helps :/
Mosquitoes can carry and transmit many diseases to humans. In the past, the insecticide DDT was heavily used to reduce mosquito populations in order to reduce instances of disease transmission. However, after some time, mosquito populations developed a resistance to DDT, which made the DDT less effective in reducing mosquito populations.
Based on what you’ve learned about natural selection, in 3–5 sentences, describe how mosquitoes may have come to develop this resistance.
Answers
Answer:
After mosquitoes in a population are exposed to doses of insecticides that are too weak to kill them, mosquitoes may develop resistance to the active ingredient(s). This makes the use of surveillance-based targeted mosquito control of the utmost importance.Explanation:
identify the stage of cellular respiration in which each of following takes place
Answers
a. Electrons are passed to oxygen molecules and water is produced: Aerobic respiration - Krebs Cycle and Electron Transport Chain
b. Glucose is broken down to form pyruvate molecules: Glycolysis
c. ATP is formed by chemiosmosis: Electron Transport Chain
d. Acetyl CoA reacts with oxaloacetate to form citric acid: Krebs Cycle
You observe a yellow zone surrounding growth on mannitol salt agar. What does this indicate about the organism
Answers
Answer:
The organism is able to ferment mannitol.
Explanation:
DNA and RNA are both important nucleic acids. They have similarities and differences structurally.
Use the Venn diagram to compare the two nucleic acids. Drag each characteristic to the correct location.
ITEM BANK Move to Bottom
Deoxyribose sugar
Double stranded
Ribose sugar
Sugar, phosphate, nitrogen base
Throughout the cell
DNA
Both
RNA
Answers
Answer:
search this up
Explanation:
then add quiz let at the end :) hope this
in a hypothetical situation, a gene in cats that causes softened foot pads is slightly maladaptive. the gene for softened foot pads is linked to the gene for a fur color pattern that is highly adaptive. the result is that both the softened foot pad condition and the fur color pattern increase in a cat population over ten generations. this scenario supports which of the following statements? elimination tool select one answer a evolution is a guided process of perfection that tends toward more perfect populations. b the overall phenotype of an organism is often the result of adaptive compromises. c fur color is always a more important influence of fitness than toughness of the foot pads. d because polygenic traits are maladaptive, they will become less common in future generation
Answers
This scenario supports the overall phenotype of an organism is often the result of adaptive compromises.
The scenario described supports the statement that the overall phenotype of an organism is often the result of adaptive compromises. In this hypothetical situation, the gene for softened foot pads is slightly maladaptive, but it is linked to a highly adaptive fur color pattern gene.
As a result, both traits increase in the cat population over time, indicating that there is a trade-off or compromise between the maladaptive trait and the highly adaptive trait. This is an example of how natural selection can favor the overall phenotype of an organism, which is the result of a balance between various traits and their adaptive value.
Hence, the correct option is b.
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For each of the following, 1. identify whether is is nonexcludable, nonrival, neither, or both and briefly explain your answer. and 2. determine which one or more of the following (a, b, c, d) would suffer from the free rider problem. Make sure to fully explain your answers:
a. The Great Smoky Mountains National Park (covers over 800 square miles, has dozens of access points for hiking trails located along public roads and highways).
b. a playground at a local park, such as Luetta Moore Park in Statesboro, GA (if you aren't familiar with Statesboro - it's an open playground in a residential area, there's a fence around part of it, but there's no gate/fence doesn't close)
c. National defense
d. A subway train
Answers
a. The Great Smoky Mountains National Park: Nonexcludable and rivalrous. Free rider problem likely.
b. Luetta Moore Park playground: Nonexcludable. No free rider problem.
c. National defense: Nonexcludable and nonrivalrous. Free rider problem exists.
d. Subway train: Nonexcludable. Free rider problem possible during peak hours.
a. The Great Smoky Mountains National Park: It is nonexcludable because it is difficult to prevent individuals from accessing the park. However, it is rivalrous as the park's resources, such as campsites or parking spaces, can be depleted. Both nonexcludability and rivalry suggest that the park is both nonexcludable and rivalrous. The free rider problem may occur since people can enjoy the benefits of the park without paying for its maintenance or preservation.
b. Playground at Luetta Moore Park: The playground is nonexcludable since it is difficult to prevent people from using it. However, it is nonrival as one person's use does not diminish the usability of the playground for others. Therefore, it is only nonexcludable. The free rider problem may not apply here since the use of the playground does not impose costs on others.
c. National defense: National defense is both nonexcludable and nonrival. It is nonexcludable because it is challenging to exclude individuals from benefiting from defense. It is nonrival because the defense provided to one person does not diminish the defense available to others. Both characteristics make national defense both nonexcludable and nonrival. The free rider problem is prevalent in national defense since individuals can benefit from defense without incurring the costs associated with it.
d. Subway train: A subway train is nonexcludable since it is difficult to prevent individuals from using it. However, it can be rivalrous during peak hours when overcrowding may limit the available space. Therefore, a subway train is only nonexcludable. The free rider problem may not be significant here as long as there are no capacity constraints or overcrowding issues.
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Grandma tells Hailey not to swim for 30 minutes after eating. Explain why taking a vigorous swim immediately after lunch is more likely to cause indigestion than cramping of your muscles
Answers
Grandma tells Hailey not to swim for 30 minutes after eating. Taking a vigorous swim immediately after lunch is more likely to cause indigestion than cramping of your muscles due to the fact that after eating, the digestive system requires a lot of blood for digestion and absorption of the nutrients obtained from the food.
The muscles of the body also require a lot of blood to keep them working during exercise. When swimming, the body is horizontal, and this increases the volume of blood flow to the muscles. This means that the amount of blood that is needed for digestion is reduced. The shortage of blood for digestion may lead to indigestion or stomach upset. When swimming immediately after lunch, the body is not in a position to provide sufficient blood supply to both the digestive system and the muscles at the same time. This imbalance of blood distribution leads to poor digestion or indigestion, and the vigorous exercise may cause indigestion instead of muscle cramps.
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1. Which of the following is not a renewable energy source?
a. Electricity created by a turbine powered by water moving through a dam.
b. Electricity created by a turbine powered by wind.
C. Electricity created by solar power from the sun's rays.
d. Electricity created by burning coal or wood.
Answers
Answer:
d. Electricity created by burning coal or wood.
Explanation:
It D because the electricity is burning coal (non-renewable source) or wood. Burning wood destroys animals or even people's homes. Rest are a renewable energy source.
how to get rid of a corpse pls help
Answers
Answer:
I didn't think I'll be teaching again about this someday...
1.Why did you do it
2.What did it do to you?
3. I'm hungry
4. I'll help you after eating
5. Bye
6. *munch munch*
7. Corny right?
8. Bye again
9. Bye, for real
10.
Answer:
Ground burial.
Cremation.
Immurement.
Sky burial.
Burial at sea.
Composting.
Dissolution.
Other less common.
Explanation:
hope this helps
What might happen if the nerves in your skin did not gather information?
Answers
Answer:
Explanation: If your nerves in your skin don't gather information then you couldn't feel anything or comprehend what you're touching. So its basically like having CIPA which does not allow you to feel pain as pain receptors are also nerves.
Beagles have floppy ears but Chihuahuas have ears that stand upright. All hybrid puppies exhibit upright ears. Assume that this trait is controlled by a single gene, called EAR. Complete the Punnett square to show the cross between the purebred beagle and Chihuahua parents. Identify the dominant and recessive alleles.
Answers
Answer:
Explanation:
To complete the Punnett square for the cross between a purebred beagle and a Chihuahua, we need to identify the dominant and recessive alleles for the trait of ear type.
Let's use the letter "E" to represent the dominant allele for upright ears and the letter "e" to represent the recessive allele for floppy ears.
Purebred beagle: Ee (one dominant allele for upright ears, one recessive allele for floppy ears)
Chihuahua: ee (two recessive alleles for floppy ears)
Punnett square:
| E | e |
--------------------
E | EE | Ee |
--------------------
e | Ee | ee |
In the Punnett square, the top row and left column represent the possible alleles from the beagle parent, and the side row and bottom row represent the possible alleles from the Chihuahua parent.
As seen in the Punnett square, all the hybrid offspring (F1 generation) will have the genotype Ee, indicating that they will exhibit upright ears. The dominant allele "E" for upright ears is expressed in the presence of even one copy, while the recessive allele "e" for floppy ears is only expressed if both copies are present.
Therefore, in this cross, upright ears (represented by the dominant allele) are the dominant trait, and floppy ears (represented by the recessive allele) are the recessive trait.
Which of the following extra-terrestrial bodies consists of ices, rock, and dirt? A.asteroids B.comets C.meteoroids D.meteorites
Answers
The ecologists had too little time and too little money to count species in the entire 1,000-hectare reserve in which the 100-ha plot was established. Instead, they spent their time inventorying species in subsets of the 100-ha plot. They arranged their plots so they could build a species-area graph from data collected within the 100 hectares. The plots were established so that each plot was completely contained in each successively bigger plot. They started with inventorying a 1-ha plot, then a 10-ha plot, a 20-ha plot, a 50-ha plot, and the whole 100-ha plot. After plotting the data on a log-log graph, they calculated c and z. Consider that log(c) = 0.699 and z = 0.608 for these data, how many species would you predict occur in the entire 1000 ha reserve?
Answers
We can predict that approximately 3166 species would occur in the entire 1000-hectare reserve based on the provided data and the species-area relationship.
To predict the number of species that would occur in the entire 1000-hectare reserve, we can use the species-area relationship and the values of c and z provided. The species-area relationship is typically modeled using a power law equation of the form:
\(S = cA^z\)
where S represents the number of species, A represents the area, c is a constant, and z is the slope of the relationship.
In this case, we have log(c) = 0.699 and z = 0.608.
To find the value of c, we need to take the antilog (base 10 exponentiation) of log(c). Therefore:
\(c = 10^{(log(c))\)
\(c = 10^{(0.699)\)
c = 4.997
Now we can use the equation \(S = cA^z\) to calculate the number of species for the entire 1000-hectare reserve. Substitute A = 1000 into the equation:
\(S = 4.997 * 1000^{0.608\)
S = 4.997 * 633.939
S = 3166.40
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Waste removal in a flatworm is best described by which statement?
A) Flatworms store waste in their bodies until they die.
B) Flatworms have no specialized waste removal system.
C) Flatworms process solid, liquid, and gaseous waste in the same body system.
D) Flatworms have an extensive branched system that removes liquid waste.
Answers
DNA has two functions: It can self-replicate, and it acts as a template for the transcription of RNA. DNA is capable of these functions because:
Answers
Answer:
Its nucleotides can base-pair with both ribose and deoxyribose nucleotides.
Explanation:
Pls help I really need to get over this today
Answers
The body produces cells which recognize and produces antibodies against the virus in the case of future infections when dead or weakened viruses are injected in a person.
What is immune response?An immune response is a response produced by the body which involves producing substances such as antibodies and chemicals which help to fight and destroy disease-causing organisms.
The process of injecting dead or weakened viruses in a person to help fight against future infections from that virus is known as vaccination.
The body produces cells which recognize and produces antibodies against the virus in the case of future infections.
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During meiotic cell division,_____daughter cells are produced that are genetically___
their parent cell.
Answers
Answer:
During meiotic cell division, two daughter cells are produced that genetically identical to their parent cell.
Explanation:
I Hope This Is What You Were Looking For!
-Jusitn:)
Answer:
During meiotic cell division, four
daughter cells are produced that are genetically different from
their parent cell.
Explanation:
Which of the following arthropods does NOT transmit diseases by sucking blood from a human host?
a) mosquitoes
b) houseflies
c) fleas
Answers
Houseflies do not transmit diseases by sucking blood from a human host.
So correct answer is b) houseflies.
While mosquitoes and fleas are known to transmit diseases to humans by sucking their blood, houseflies do not have the necessary mouthparts to pierce the skin and suck blood. However, houseflies can still transmit diseases to humans through other means, such as by landing on and contaminating food or surfaces with their feces or regurgitated fluids. To reduce the risk of disease transmission from houseflies, it is important to practice good sanitation and hygiene habits, such as keeping food covered and disposing of garbage properly. Mosquitoes and fleas, on the other hand, can transmit a variety of diseases, including malaria, dengue fever, West Nile virus, and plague, among others.
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How does dry air affect transpiration rate (Increase, decrease, no change) and why?
Answers
Answer:
The effect of dry air is in Increased movement of the air around a plant will result in a higher transpiration rate.
Explanation:
It is easier for water to evaporate into dryer air than into more saturated air. Increased movement of the air around a plant will result in a higher transpiration rate. If there is no wind, the air around the leaf is still and transpiration raises the humidity around each leaf.
Answer:
Dry air can decrease the transpiration rate.
Explanation:
Dry air can cause the stomata to close in order to conserve water, which also reduces transpiration.
What is a photosynthetic pigment
A. A man-made compound that reacts to light
B. An oxygen based compound that captures light energy.
C. A light sensitive compound that changes color.
D. A colored compound that captures light energy.
Answers
Answer:
Answer D is correct.
Explanation:
A colored compound that captures light energy.
This photosynthetic pigment means the pigment which is present in chloroplasts to absorb or capture the light energy to do photosynthesis.
Hope this helps you
Beginning with solar energy, detail how the transfer of energy drives weather and climate. Be sure to mention how energy transfer affects wind, rain, temperature, and climate.
Thank u in advance!! ^^
Answers
Answer:
Climates and weather activities are driven by solar energy. The option among all the options that are given in the question is the third option. It is a known fact that the surface of the earth is very not even, and this is the reason that the surface of the earth also absorbs solar energy differently.
Explanation:
How does the ozone layer form?
Step 1:
Step 2:
Answers
Answer:
In the first step, ultraviolet sunlight breaks apart an oxygen molecule to form two separate oxygen atoms. In the second step, each atom then undergoes a binding collision with another oxygen molecule to form an ozone molecule.
vana is studying insect life cycles. She placed a male and a female gnat inside a terrarium. The female gnat laid eggs. Ivana observed and recorded all of the stages she saw the eggs go through. Her results are shown in the table below.
Stage Time in Stage
egg 24 hours
larva 7 days
pupa 6 days
adult 2 weeks
Which of the following is a valid conclusion that Ivana can draw from her data?
Answers
Answer:
It takes up to 5 weeks for a gnat to become an actual gnat.
Answer:
A gnat completes its life cycle in about 1 month.
Explanation: study island
which type of bone tissue forms the rigid outer surface of bones and is covered by periosteum
Answers
The type of bone tissue that forms the rigid outer surface of bones and is covered by periosteum is compact bone tissue, also known as cortical bone.
Compact bone tissue is dense and strong, and it makes up the outer layer of bones. It is composed of cylindrical structural units called osteons, which contain concentric layers of mineralized extracellular matrix surrounding a central canal that houses blood vessels and nerves.
Periosteum is a dense layer of connective tissue that covers the surface of bones and is important for bone growth and repair. It contains blood vessels, nerves, and stem cells that can differentiate into bone-forming cells called osteoblasts.
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