RNA consists of fewer nucleotides than DNA, which is up to 12,000. Thus, the correct option is C.
What are Nucleotides?Nucleotides may be defined as molecules consisting of a nitrogen-containing base, a phosphate group, and a pentose sugar.
DNA molecules consist of more sequences of nucleotides compared to RNA molecules. Most of the RNA molecules consist of nucleotides of no more than a few thousand and up to 12,000.
Therefore, the correct option for this question is C.
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Validity of an experiment is based upon:
A. Using a control group.
B. Performing a fair test in which only the independent variable affects the dependent variable.
OC. Using multiple independent variables.
D. Performing a fair test, in which only the dependent variable affects the independent variable.
A
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Answer:
performing a fair test, in which only the dependent variable affects the independent variable
from the outside to the inside of a long bone, what is the first tissue encountered?
From the outside to the inside of a long bone, the first tissue encountered is the periosteum.
What are long bones?The long bones of the body are the bones which include the humerus, femur, radius and Luna, tibia and fibuka.
The tissues present in a long bone include, spongy bone, compact bone, periosteum,etc.
The periosteum is a layer of fibrous connective tissue that completely covers a long bone.
It is the first tissue encountered from the outside to the inside of a long bone.
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The graph shows a population of rats in a forest habitat over a 10-year period.
The forest was a controlled environment, and no rats were allowed to enter or
leave the habitat.
Number of Rats (in thousands)
250
225
200
175
150
125
100
75
50
25
110
0+
30
2
3
76
45
Population
4
5
90
Year
200
100
6 7
30
29 27
8 9 10
Based on the graph, at which point is the death rate most likely greater than
the birthrate?
Answer:
100
Explanation:
there is a certain amount of food and resources to sustain a certain amount of individuals in a population. Since the individuals exceeds the amount of resources at 100,000 individuals you would usually see the death rate higher than birth rates to balance out the number of individuals to the number of resources so there is enough for all the individuals there.
help me to answer this
Answer:
Explanation:
No I don't think so because there are animals who live there and he shouldn't destroy their habitat
What two components are often found as part of an ezyme
Answer:
Apoenzyme and the co-factor are the two components of an enzyme.
Hope it helps!
Which of these is true for a daughter cell produced by mitosis?
A. It functions in the same way as the parent cell.
B. It has more cytoplasm than its parent cell had.
C. It is unlike any other cell in the organism.
D. It is always a haploid cell.
Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?
The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.
What is RNA?This is referred to as ribonucleic acid with its base adenine being paired with uracil.
The mRNA strand which is known as messenger RNA is complementary to the DNA template strand and carries protein information from the DNA to cytoplasm for appropriate translation.
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During which phase of the cell is a cells DNA copied
Explanation:
Hi there!
Cell cycle has 2 phases (i.e M-phase and Inter-phase). Interphase is considered to be the longest phase. Interphase also has G1-phase, S-phase and G2-phase. In cell cycle while moving from M-phase it has two option either to go in G1-phase or G0 phase. It it goes to G0-phase it doesn't go under cell division but if it goes to G1-phase it starts to prepare materials required to replicate or copy DNA. After preparing all the material it goes in S-phase and copies DNA. It doesn't go to G2-phase until it copies DNA perfectly. Then it goes to G2-phase. In this phase it prepares material for replication of other cell organelles.
Therefore, DNA is copied in S-phase.
Hope it helps!
Answer:
S phase (Synthesis phase)
Explanation:
DNA is copied during interphase (S phase) before mitosis and just before meiosis. Mitosis is usually defined as the usual method of cell division, characterized typically by the resolving of the chromatin of the the nucleus into a threadlike form, which condenses into chromosomes, each of which separates longitudinally into two parts, one part of each chromosome being retained in each of two new cells resulting from the original cell. Meiosis is usually defined as part of the process of gamete formation, consisting of chromosome conjugation and two cell divisions, in the course of which the diploid chromosome number become reduced to the haploid (A single set of chromosomes). In human, mitosis produces diploid daughter cells which have the same number of chromosomes as the parent cell. Meiosis produces gametes (sperm or egg) which are haploid, meaning these cells have half the number of chromosomes as body cells such as skin cells. DNA is copies using a process called semiconservative replication.
More information:
What is DNA replication? What is its importance?A double-stranded DNA molecule is duplicated during DNA replication (by a variety of proteins) to create an identical double-stranded DNA molecule (so whereas the cell started with one copy, it ended up with two identical copies). Cell division would not be possible without DNA replication, hence it is crucial. In other words, either one cell would receive all the DNA while the other received none, preventing true cell division, or each cell would receive just half the DNA it requires, preventing the daughter cells from surviving (also leading to death of both daughter cells). DNA replication allows cells to replicate their whole set of DNA so that when they divide, each new cell has its own complete set of DNA. In theory, this allows for endless cell division.
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How do mutations affect evolution?
Answer:
Mutations affect evolution by increasing genetic variation and the potential for individuals to differ.
The size of most prokaryotic cells is about _________ in diameter.
1-2µm
3-4µm
4-5µm
2-5µm
Answer:
option 1
Explanation:
The size of most prokaryotic cells is about in diameter.
1-2µm
The size of most prokaryotic cells is about 1-2µm in diameter. Therefore option A is correct.
Most prokaryotic cells are relatively small, typically ranging in diameter from 1 to 2 micrometers (µm). Prokaryotes are unicellular organisms without a true nucleus or membrane-bound organelles.
Their small size is advantageous as it allows for efficient nutrient uptake and waste elimination, facilitating rapid growth and replication.
Despite their small size, prokaryotic cells are highly diverse and can be found in various environments, including soil, water, and even within the human body.
Therefore option A is correct.
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When do we use a fluorescence microscope?
A fluorescence microscope is used when one wants to image specific features of small specimens such as microbes.
What is a fluorescence microscope?A microscope that uses fluorescence to form an image.
Fluorescence microscopy has wide applications due to its high sensitivity, specificity and simplicity. It can be applied to living cells and organisms.
Fluorescence microscopy is used to view the features of small specimens such as microorganisms.
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Anita thinks that she has heterozygous alleles for red hair. if she is correct, which of these diagrams best illustrates anita’s alleles for red hair? 2 chromosomes are labeled upper r and upper r. 2 chromosomes are labeled upper r and r. one chromosome is labeled upper r and another is unlabeled. 2 chromosomes are labeled r and r.
Answer:
R r One uppercase R and one lowercase r
Explanation:
Heterozygous means having two different alleles. Since R is the dominant it means she has red hair and is still heterozygous.
Answer:
2 chromosomes are labeled R and r
Heterozygous means different, so you need two different traits.
Which is an abiotic factor that can be found in a rain forest ecosystem?
OA. Water
OB. Trees
O C. Animals
D. Bacteria
Answer:
I think Trees because abiotic means stuff that doesn't live so yea
let me know if i am wrong.
Explanation:
The primary mirror in a reflecting telescope is a
plane mirror.
concave mirror.
convex mirror.
Answer:
B or concave mirror.
Explanation:
Signal sequences that direct proteins to the correct compartment are Select one: a. encoded in the amino acid sequence and sufficient for targeting a protein to its correct destination b. added to proteins through after translation c. always removed once a protein is at the correct destination d. added to a protein by a protein translocator
Signal sequences that direct proteins to the correct compartment are b. added to proteins through after translation.
What is protein?It should be noted that protein means large biomolecules that are found in the body and are important for chemical reactions.
In this case, signal sequences that direct proteins to the correct compartment are added to proteins through after translation.
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The processes of meiosis and fertilization help ensure the survival of the
species by providing each generation with the same number of - *
chromosomes
body cells (somatic)
gametes (sex cells)
offspring
Answer:
providing same number of chromosomes
Explanation:
each gamete has similar number of chromosomes which when fused during fertilization provide the same number of chromosomes
Removal of ethylene helps increase the shelf life of fruits and vegetables. justify?
Answer:
Ethylene is a gaseous plant hormone that plays an important role in inducing the ripening process for many fruits, together with other hormones and signals. An unripe fruit generally has low levels of ethylene. As the fruit matures, ethylene is produced as a signal to induce fruit ripening.
Explanation:
Mark as brainlest answer(人*´∀｀)｡*ﾟ+Answer:
it is the hormone present in ripening the fruit so removal of ethylene helps increase the shelf life of fruits and vegetables
Explanation:
Hope It Helps!!!
Drag the labels to the appropriate locations in this concept map.
Answer:
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Proteins are the polymer of amino acids have many functions, joined by peptide bonds. Each amino acid consist of central carbon. Proteins consist of four group of structure primary structure, secondary structure, R group, tertiary structure and quaternary structure.
What are amino acids?Amino acids are defined as a chemical substances with functional groups from both amino and carboxylic acids. You need 20 of these molecules for your body to function properly because they are the building blocks of protein that are required by all living organisms. 11 of the essential amino acids are produced by your body.
Proteins are defined as a macro- and large-scale biomolecules that contain one or more long chains of residues from the amino acid. Proteins are composed of amino acid chains, which fold into recognizable three-dimensional structures. The bonds found inside protein molecules help to secure the final folded shapes of proteins, which are well-suited for their functions.
Thus, proteins are the polymer of amino acids have many functions, joined by peptide bonds. Each amino acid consist of central carbon. Proteins consist of four group of structure primary structure, secondary structure, R group, tertiary structure and quaternary structure.
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b. A family of foxes arrived on the island after the rabbits were released. No
other factors on the island changed. Based on the graph, during what year did
the foxes most likely arrive? How did the arrival of the fox family impact the
carrying capacity of the rabbit population on this island? (3 points)
The carrying capacity is affected by dense dependent and dense independent factors. 1) During the fourth year. 2) Negative impact. K decreased from 200 to 100 rabbits.
What is carrying capacity?Carrying capacity -K- is the capability of the environment to support a growing population.
It is a constant that coincides with the population size at which natality and mortality rates are equal. This is the equilibrium point.
Commonly, environments have limited resources, and as the population grows, resources are consumed faster, leading to an increase in the competition rate.
Per capita growth rate decreases as population size, N, increases.
If the N < K, the population can still grow.
• When N approximates to K, the population's growth speed decreases.
• When N = K, the population reaches equilibrium,
• When N > K, the population must decrease in size because there are not enough resources to maintain that size.
The carrying capacity might be affected by limiting factors, which might be
density dependent (for example, competition, predation, etcetera) density independent. This last case refers to dense-independent factors, among which we can mention human impact or natural disasters (fires, volcanic eruption, flooding).In the exposed example, when referring to rabbit's carrying capacity, we can assume it is limmited by intraspecific competition and by predation.
Population size between the 1st and 2nd yearsAt first we can see that during the first two years, the number of rabbits increased until it was a little bit over 200 individuals.
Population size between the years 2, 3 and 4During the second, third, and fourth year, the number of rabbits was kept around 200 individuals, which leads us to assume that K = 200 rabbits.
Population size the fourth yearHowever, in the fourth year, there was a sharp decrease in the number of rabbits. Probably this event was due to the arrival of foxes (predators) on the island.
Population size after the fourth yearIn the presence of foxes, the number of rabbits varied around 100 (K = 100).
According to this information, we can assume that only intraspecific competition (related to resources) had a significant role during the first years.
But with the foxes' arrival, the rabbits' carrying capacity decreased from 200 to 100, meaning that, during the following years, predation strongly influenced the rabbits' carrying capacity.
1) During what year did the foxes most likely arrive?
During the fourth year
2) How did the arrival of the fox family impact the carrying capacity of the rabbit population on this island?
Foxes had a negative impact on the foxes' carrying capacity. It decreased from k = 200 to k = 100 since the foxes arrival to the island.
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how many daughter cells are formed after meiotic division
Answer:
four daughter cells
Explanation:
The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.
how do technology helped to support the theory of evolution?
Attachment of herpesviruses results in ________, a process in which the host cell facilitates viral entry.
The attachment of herpes viruses results in endocytosis, a process in which the host cell facilitates viral entry.
What is endocytosis?Endocytosis refers to the cellular physiological process where a cell engulfs foreign particles.
This cellular process (endocytosis) is very common to obtain certain substances from the surrounding environment.
In conclusion, the attachment of herpes viruses results in endocytosis, a process in which the host cell facilitates viral entry.
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Which cells are present during chronic inflammation?
The cells which are present during chronic inflammation include:
LymphocytesMacrophagesPlasma cells.What is Inflammation?This is referred to a process in which the white blood cells enter affected parts and protect the body from foreign agents.
The cells listed work together to ensure that the body isn't invaded by these micro-organisms.
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Select the correct number on the image.
This map shows the amount of soil moisture (SM), which is an indicator of water availability for people living in that region. Based on the data from map, which region has the maximum risk of a water shortage?
Based on the data from map, region 4 has the maximum risk of a water shortage
What are the effects of water shortage?Three effects that water shortage has on a region is that farming is harder to do because the planets will die without water and then we can't get food. People also don't have drinking water or water.
Another effect is that people can't use water for everyday necessities like keeping clean.
Thus, region 4 has the maximum risk of a water shortage.
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Describe the medicinal value of mushroom
Answer:
Mecdicinal Value Of Mushroom
Explanation:
Mushroom are antibacterial, immune system inhancer and cholesterol lowing agents; additionally, they are important sources of bioactive compounds. As a result of these properties, some mushroom extracts are used to promote human health and are found as dietary supplements.
I hope this will help you.
zai tian.
Describe the process of ecological succession.
Answer:
Ecological Succession is the change in structure of species and community over time
using oil immersion is useful because
Using immersion oil is useful as it acts as an interface between the blade and the front lens of the objective, improving the quality of the visualized image.
What is immersion oil for?Immersion oil is a resource generally used with the objective of greater magnification, its function is to act as an interface between the blade and the front lens of the objective, improving the quality of the visualized image.
With this information, we can conclude that using immersion oil is useful as it acts as an interface between the blade and the front lens of the objective, improving the quality of the visualized image.
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Are humans likely affected by biomagnification? if so, which foods might be dangerous?
“Biomagnification or biological magnification is the process of accumulation of certain chemicals in living organisms to a concentration higher than that occurring in the inorganic, non-living environment.”
Human beings occupies the top place of most trophic level and we know that concentration of harmful chemicals increase as we go above the trophic level. Therefore human beings are most adversely affected by biological magnification.
Humans may also be affected due to the consumption of fish and shellfish.
A normal breath takes in about 1.0 L of air. If air has an average molar mass of 28.8 g per 1 mol and has a density of 0.97 g/mL, how many molecules of air do you take in with each breath
Taking into account the definition of density and Avogadro's Number, you take 2.0286×10²⁵ molecules of air.
What is densityDensity is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.
In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance.
Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
[tex]density=\frac{mass}{volume}[/tex]
What is Avogadro's NumberAvogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.
Amount of molecules of airIn this case, you know that:
Density= 0.97 [tex]\frac{g}{mL}[/tex]Volume= 1 L= 1000 mLReplacing in the definition of density:
[tex]0.97 \frac{g}{mL}=\frac{mass}{1000 mL}[/tex]
Solving:
mass= 0.97 [tex]\frac{g}{mL}[/tex] ×1000 mL
mass= 970 g
Air has an average molar mass of 28.8 g per 1 mol. Then 970 grams are contained in 33.68 moles.
Now, considering the definition of Avogadro's number you can apply the following rule of three: If 1 mole of air contains 6.023×10²³ molecules, 33.68 moles contains how many molecules?
amount of molecules = (33.68 moles× 6.023×10²³ molecules)÷ 1 mole
amount of molecules= 2.0286×10²⁵ molecules
Finally, you take 2.0286×10²⁵ molecules of air.
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Which best describes the nature of cellular respiration?
OIt is an energy-seeking process.
OIt is an energy-gathering process.
OIt is an energy-releasing process.
OIt is an energy-destroying process.
The nature of cellular respiration is an energy-releasing process. Therefore, the correct statement is option C.
What is the process of cellular respiration?The process of cellular respiration releases energy. In order to liberate energy from foods and create ATP (adenosine triphosphate), the molecule that transports energy in cells, a metabolic process takes place in the cells of living things.
Organic substances, like glucose, are broken down in a sequence of enzyme processes that release the stored energy, which is then collected in the form of ATP, during cellular respiration.
Since this process takes place in the presence of oxygen, it is also known as aerobic respiration. Living organisms depend on cellular respiration to survive because it helps in the transportation of the energy needed for all of their cellular functions.
Therefore, the cellular respiration is an energy-releasing, and a metabolic process takes place in the cells of living things.
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