Answer:
If in a double stranded DNA the percentage of guanine is 14%, the percentage of the other bases of the molecule will be 14% for cytosine, 36% for adenine and 36% for thymine.
Explanation:
In the DNA molecule resides all the information of the genome of a living being, according to a specific sequence of nitrogenous bases adenine, guanine, cytosine and thymine. These bases are complemented -purine with pyrimidine- following the rule of base complementarity between one chain and another.
Knowing the percentage that exists of a base, the percentage or proportion of the other nitrogenous bases in a DNA molecule can be determined, approximately, following the rule of Chargaff's base pair.
Chargaff established in his observations that the DNA of a cell has a purine:pyrimidine ratio of 1:1, so there should be an equivalent amount of guanine for cytosin and a similar amount of thymine for adenine, since they are complementary bases.
According to the law of the base pair, if there is 14% in a DNA strand, there will be a 14% in the molecule:
Adenine 36%. Thymine 36%. Cytosine 14%. Guanine 14%. Total ..... 100%This rule applies to both chains, since the percentage of bases in a single chain will depend on the specific sequence of bases it has.
2. In Squidward's family, a blue body color (B) is dominant to green (b). Determine the phenotype for each
genotype below based on this information.
BB
Bb
bb
Describe two ways effects on society can impact the decision of whether to mine for resources in certain areas.
In the certain area that people are looking to mine,it may have lots of people. If there a lots of people,and there is an explosion in the mine,lots of deaths would happen. If there was people with lots of sickness,or a huge hospital in the town this would be bad,because they would be spreading possibly toxic and lethal chemicals inside of the town and killing off all of the people. Truly the main reason for society impacting this is health and money. It may be expensive in this area.
Hope this helped!
-Nea
There may be a large number of people in the area where people want to mine. There will be many deaths if there are many people and there is an explosion in the mine.
What is mining?Mining is the extraction of useful materials from the earth. Coal, gold, and iron ore are some examples of mined materials. Iron ore is the raw material used to make the metal iron.
Mine exploration, construction, operation, and maintenance may result in land-use change and have negative environmental consequences such as deforestation, deterioration, contamination.
Also, the modification of soil profiles, contamination of local streams and waterways, and an increase in noise and dust.
There could be a large population in the area where people want to mine. If there are a lot of people and there is an explosion in the mine, there will be a lot of deaths.
Thus, this way, effects on society can impact the decision of whether to mine for resources in certain areas.
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What happens to osmotic pressure in a cell if it is placed in a hypotonic solution?
Answer:
the cell shrinks, because it loses water
Explanation:
Select the word in the following sentence that indicates a scary tone.
"The footsteps creaked on the stair." (5 points)
- stair
- footsteps
- creaked
- on
Creaked cause it implies suspense
Answer: - creaked
Explanation: I just took the test.
DNA is considered the blueprint of life, yet in eukaryotic organisms, such as humans, DNA never leaves the nucleus. Which of the following is the best explanation for how DNA codes into physical traits and characteristics, even though it never enters the cytoplasm?
Answer:
There are no options to this question, however, it can be answered. The answer is:
DNA is transcribed into MRNA, which is translated into proteins responsible for physical traits and characteristics.
Explanation:
DNA is the genetic material of living organisms. As stated in this question, DNA is considered the blueprint of life. However, this DNA is permanently located in the nucleus of eukaryotic cells. The information in this DNA is used to synthesize a mRNA molecule in a process called TRANSCRIPTION.
This mRNA molecule then transports the genetic information from the nucleus to the cytoplasm (specifically the ribosomes) where the process of TRANSLATION i.e. synthesis of protein from mRNA, occurs. The produced proteins are responsible for the physical traits and characteristics.
Hence, the DNA never leaves the nucleus but it transfers it's stored genetic information to mRNA and subsequently proteins.
what is shared characteristic of all animals
Answer:
They are all living, they are multicellular organisms, they are all members of a kingdom, have DNA, etc.
Explanation:
Answer:
Most animals share these characteristics: sensory organs, movement, and internal digestion. All of them are illustrated in Figure below. Animals can detect environmental stimuli, such as light, sound, and touch. Stimuli are detected by sensory nerve cells
Explanation:
hope this helps! gimme brainleist plz
what are the three main factors that affect barometric (air) pressure ?
Answer:
Temperature
Altitude or Elevation
Moisture or water vapour.
Explanation:
Mendel studied pea plants for particular traits. When observing the results of his experiments, he created two laws of inheritance. How is a scientific law formed?
Answer: Scientific laws are created when a theory has stood the test of time and cannot be proven wrong. A scientific law is a statement based on repeated experimental observations that describes some aspects of the universe.
Answer:
A scientific law describes repeated observations under a given set of conditions. These laws are not too specific, and they imply a casual relationship. These laws do not explain why something occurs, they merely state that something will occur if the given conditions are met. Therefore, the formation of a scientific law is a result of repeated observations. An example is Newton's first law of motion, which gives certain conditions for an object, such as no force acting on it, and then describes what the object will do in that situation, that is, remain in motion or remain stationary.
Explanation:
The resting potential of a resting neuron is caused by
Answer:
A resting (non-signaling) neuron has a voltage across its membrane called the resting membrane potential, or simply the resting potential. The resting potential is determined by concentration gradients of ions across the membrane and by membrane permeability to each type of ion.
Explanation:
hopefully that helps?
The resting potential of a resting neuron is caused by the differences in ion concentration of the intracellular and extracellular fluids and the relative permeabilities of the plasma membrane to different ion species.
What is neuron?Neurons also known as nerve cells are the basic components of the brain and nervous system.
They are the cells that receive sensory information from the outside world, give motor orders to our muscles, and convert and relay electrical impulses at every step along the way.
What is resting potential of neuron?The electrical charge imbalance that exists between the inside of electrically excitable neurons (nerve cells) and their surroundings is known as resting potential.When a cell is not stimulated, its resting membrane potential is defined as the electrical potential difference across the plasma membrane. The electrical potential differential across a cell membrane has traditionally been represented in terms of its value inside the cell compared to the extracellular environment.The K+ that leaks from the interior of the cell to the outside via leak K+ channels creates a negative charge on the inside of the membrane compared to the outside, resulting in the resting membrane potential. Because all of the Na+ channels are closed at rest, the membrane is impermeable to Na+.To know more resting potential of neuron here
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When do solutions attempt to reach a
state of equilibrium?
Answer:
1 Answer. Ernest Z. Equilibrium is reached when there is a uniform distribution of solvent particles or when there is an equal concentration of solute on each side of a membrane.
Explanation:
hope it helps
25. What are the special considerations during the Solution Design during the Technological Design Process?
A. Cost
B. Time
C. Materials
D. All of the above
Which are examples of active transport across the cell membrane?
a. osmosis and diffusion
b. diffusion and facilitated diffusion
c. osmosis and chemiosmosis
d. endocytosis and exocytosis
Answer:
d. endocytosis and exocytosis
How does someone become a carrier for sickle cell anemia?
A. They inherit one copy from one parent
B. They inherit two copies from two parents
C. It's completely random
Answer: A !
Explanation:
ATP is a type of molecule that
can provide energy for biological
processes. Explain how the
energy is being used in Model 4
Given what we know, we can confirm that ATP is used by cells as the energy source to power cellular activity by breaking the bond that holds its third phosphate.
What we know about ATP.This molecule provides chemical energy. This is done by using the chemical energy liberated after breaking the phosphate bond in ATP.This results in an ADP molecule.Therefore, we can confirm that in the image, the ATP molecule is being used to power the active transport mechanism by using the chemical energy released when ATP is transformed into ADP through the loss of a phosphate group.
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The shape of the land in the series of pictures below most likely changed because of –
A. weathering and erosion
B. flooding and faulting
C. volcanoes and earthquakes
D. melting and freezing
Which of the following statements best describes cellular respiration?
A. Cellular respiration occurs in animal cells, but not plant cells.
B. Carbon dioxide is a reactant and oxygen is a product in the reaction.
C. The process of cellular respiration stores chemical energy in food into ATP molecules.
D. Cellular respiration produces glucose to maintain homeostasis in plants and animals.
Answer:
A cellular respiration occurs in animal cells but not plant cells
Explanation:
photosynthesis occurs in plant cells
Answer:
Your Answer would be C I took this test in the past so i think its c
Explanation:
2. Why is the cell cycle regulated?
Answer:
So that cells don't reproduce deformed, unhealthily mutated, or cancerous cells. Also, regulation ensures all parts of DNA (etc) are replicated correctly.
Control of the cell cycle is necessary for a couple of reasons:
First, if the cell cycle were not regulated, cells could constantly undergo cell division. Second, internal regulation of the cell cycle is necessary to signal passage from one phase to the next at appropriate times.hope this help! ^^
The life that exists on Earth today likely arose from a single common ancestor. Judge each
statement below and select the ones that explain how natural selection has played a role in the
diversity of life on Earth from that single ancestor. Select all that may apply. *
Answer: C and D?
Explanation:
Took the test, got it wrong showed the answers.
The diversity of life on Earth is because of the following reasons:
Natural selection acted on phenotype that were the result of new mutation in a population. Natural selection acted on isolated populations separately, allowing for those populations to diverge over time allowing for speciation. Natural selectionNatural selection can be defined as the differential survival and reproduction of those organisms that have beneficial traits over others. Those organisms have beneficial phenotype suitable for the environment survive in the adverse environmental conditions.The beneficial traits pass on from parents to offspring this leads to the speciation.Learn more about natural selection:
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A deer eats grass . Only ten percent of the energy from the grass is transferred to the deer . Where does the other 90% of the energy go
A : to the producer
B: it is a released as heat
C: goes back to the deer
Answer:
a
Explanation:
but not all the time deers eat grass some people like me and my family buy food for the deers and then put a camera up and go hunting, but anyways that's sounds like the answer.
Lactase and carbonic anhydrase are examples of what type of substance?
substrate
reactant
product
enzyme
Answer:
Enzyme
Explanation:
Blank is deliberately changed in scientific study
Answer:
The variable that is deliberately changed is called the independent variable.
Explanation:
The independent variable is the variable that is deliberately changed by the scientist study. The dependent variable is the one observed during the experiment.
Explanation:
Which organelles can be found in both plant and animal cells? A)cell membrane, nucleus, and chloroplasts B)cell wall, cell membrane, and nucleus C)endoplasmic reticulum, cell membrane, and nucleus D) chloroplasts, cell wall, and endoplasmic reticulum
Answer:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal element.
Select the correct answer. Which of the following is a correctly balanced equation? A. NaClO3 → NaCl + 3O2 B. 2HgO → 2Hg + O2 C. 2ZnS + O2 → 2ZnO + 2SO2 D. 4CO + Fe3O4 → 4CO2 + Fe E. 2Fe + 2Cl2 → 2FeCl3
The right answer is 2HgO → 2Hg + O2
Balancing a balance equation consists of finding the right stoichiometric coefficients. These coefficients (placed in front of each molecule) balance the number of each of the different atoms involved during a chemical reaction.
In this reaction, we find on both sides the same number of atoms: two oxygen atoms and two atoms of mercury.
Answer:
B. 2HgO → 2Hg + O2
Explanation:
Answer from Plato and good luck ;)
asexual reproduction results in genetically different or identical daughter cells?
Answer:
Identical daughter cells
Explanation:
Asexual reproduction is producing offsprings from 1 parent so the offspring (kid) will be identical to the parent! :)
At which level is the MOST amount of ecosystem energy found?
- tertiary consumer
- secondary consumer
- primary consumer
- producer
the answer is producer
Answer:
producer
Explanation:
In all the ecological pyramids, producers (organisms that produce their own food) are found at the lowest trophic level. This trophic level contains the highest amount of energy.
The energy in each trophic level of an energy pyramid is just 10 percent of the energy in the level below it. What accounts for the decrease in energy from the lowest level to the highest level of an energy pyramid?
help a girllll outttttttt pleaseeeeeee
Answer:
We get the materials to make new cells through...
biosynthesis, which puts small organic molecules together to create larger molecules.
Explanation:
Biosynthesis is the process in your body that turns simple structures into more complex structures. It can happen within a single cell (or within a single organelle within a cell), or across multiple cells. In this case, multiple, since it is referring to humans.
Either this option or A.
2. If there is one carbon atom in the reactants, how many carbon atoms are in the products?
Answer:
There is one carbon atom on the reactant side and one carbon atom on the product side.
Explanation:
The same is true for oxygen except that there are two oxygen atoms on each side (remember that the subscript of two in the oxygen molecule means that there are two oxygen atoms bonded together).
What type of boundary is depicted in the image below?
a. transform
b. collisional
C. convergent
d. divergent
Please select the best answer from the choices provided
Answer:
B-Collisional
Explanation:
Collisional boundary is the type of boundary depicted in the image below and is denoted as option B.
What is Collisional boundary?
This boundary occurs when two land masses meet and they crush together to form fragments.
The image shows the land masses being together and crushing which is why collisional boundary was chosen.
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Match the given behaviors of water with their correct rationale. Use your observations about water and the reading you have done to draw conclusions about these behaviors. Drag the items on the left to the correct location on the right. Correct high specific heat Correct ice floats on water Correct cohesion Correct high heat of vaporization Hydrogen bonds between water molecules keep the molecules "sticking together." Heat energy first breaks hydrogen bonds before it increases movement of water molecules. As a result more heat is required to raise the temperature of water. A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not. As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water.
Answer:
Heat energy first breaks hydrogen bonds before it increases movement of water molecules - High specific heat
As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water- Ice floats on water
A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not - High heat of vaporization
Hydrogen bonds between water molecules keep the molecules "sticking together." - Cohesion
Explanation:
Water is a molecule composed of two atoms of hydrogen and one atom of oxygen. Water is a very unique substance with properties that are unexpected of a molecule its size. Some of the unique properties of water include:
Its high polar nature, High-specific heat, High heat of vaporization, the lower density of ice. One of the reason for these unique properties is strong cohesive forces between water molecules.
Cohesion: Hydrogen bonds between water molecules keep the molecules "sticking together."
Polarity: Water molecules are polar, with partial positive charges on the hydrogens, a partial negative charge on the oxygen because oxygen is more electronegative than hydrogen. As a result, water is a good polar solvent.
High specific heat: Heat energy first breaks hydrogen bonds before it increases movement of water molecules.
Lower density of ice: As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water, therefore, ice floats on water
High heat of vaporization: A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not.
what is the pathway of information through a neuron?
what is a synapse and where does it take place?
im supposed to answer in at least two paragraphs but If you give me a basic answer I can put into a paragraph. Help!
Answer:
The pathway of information through the neuron is based in the connection of axons with other neurons, favoring the conduction of information from one place to another of the nervous system. The way in which a neuron communicates with another, with a receptor or an effector is called synapse.
Explanation:
Neurons are the specialized cells that allow the function of the nervous system, given by the transmission of information in the form of nerve impulses. The way in which information is transmitted by neurons depends on the connection that exists between neurons, by their axons and dendrites, or between enurons and specialized structures such as receptors and effectors.
When a stimulus reaches a receptor, it connects with the neuron that carries the information by afferent pathway to the central nervous system. Once the information is processed, a response is elaborated that travels through the neurons by efferent pathway to an effector cell.
Synapses are simply the connection that exists between neurons, through their axons, or from these cells to the receptor or effector structures. Synapses are located between one neuronal axon and another, or between axons and receptors or effectors, and occur through electrical signals or chemical mediators called neurotransmitters.
