which of the following is not a component of a pcr reaction? dna template dna polymerase dna primers polymorphic loci deoxynucleoside triphosphates
Answers
Among the options, the component that is not part of a PCR reaction is "polymorphic loci."
A PCR (polymerase chain reaction) typically includes a DNA template, DNA polymerase, DNA primers and Deoxynucleoside triphosphate. The DNA template is the original DNA sample that contains the target sequence to be amplified. DNA polymerase is an enzyme that synthesizes new DNA strands by adding complementary nucleotides.
DNA primers are short, single-stranded DNA sequences that bind to the target DNA region and act as a starting point for DNA polymerase. Deoxynucleoside triphosphates are the building blocks (A, T, C, G) required for DNA synthesis.
Polymorphic loci refer to regions in the DNA sequence with variation between individuals, and while they can be targeted by PCR, they are not a component of the PCR reaction itself. Hence the component that is not part of a PCR reaction is "polymorphic loci."
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Related Questions
PLS HELP I CANT FAIL THIS
The chart shows four stages of demographic transition. Which situation best
describes the industrial stage (Stage 3)?
Rate per 1000
40
30
20
10
0
Stage 1
Preindustrial
stage
-
Stage 2
Transitional
stage
Total population
-
Stage 3
Industrial
stage
Death rate
A. High and stable total population
B. High birthrate and death rate
OC. Exponentially increasing death rate
D. Sharply dropping birthrate
Answers
The chart shows four stages of demographic transition, and the situation that best explains the industrial stage (Stage 3) is the sharply dropping birth rate that is in Option D. Option D is correct regarding the industrial stage.
What is the reason for the population increase?The population increase or decrease depends upon the resources that are available for population growth, such as food, a place to live, etc., and if all these are present in abundance, then an increase in population growth is seen. Because there were not all of the resources available at the early time, such as proper food, sanitation, a place to live, and so on, population growth was slow. However, due to the development of the industrial sectors and improved living conditions, population growth is seen with a decrease in the death rate.
Hence, the situation that best explains the industrial stage (Stage 3) is the sharply dropping birth rate in Option D. Option D is correct regarding the industrial stage.
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Please answer fast!
worth 100 points
Answers
Answer:
self feeder; E from sun or chemicals - autotrophs
has a nucleus & membrane-bound organelles - eukaryote (5)
the smallest taxonomic division - species (4)
no nucleus or membrane bound organelles - prokaryote (6)
one organism living inside another, both benefit - mutualism
two term - binomial (1)
Explanation:
Various psychological theories give an insight into different types of human behavior. Conduct online research and identify six major psychological theories and analyze each theory to understand their main tenets and concepts. Then, describe anxiety in human beings using each theory.
Biological Theory
Cognitive Theory
Humanistic Theory
Learning (Behaviorism Theory)
Psychodynamic Theory
Sociocultural (Cross-Cultural) Theory
Answers
Answer:
Biological Theory:
The biological theory asserts that human behavior is a product of biological factors such as genetics, brain chemistry, and hormonal imbalances. Anxiety is believed to be caused by chemical imbalances in the brain, particularly the neurotransmitters serotonin and norepinephrine.
Cognitive Theory:
Cognitive theory emphasizes the role of cognition in determining behavior. Anxiety is believed to result from distorted or negative thinking patterns, such as catastrophizing, which involves imagining the worst possible outcome.
Humanistic Theory:
Humanistic theory asserts that human behavior is determined by an individual's innate desire for self-actualization, personal growth, and fulfillment. Anxiety is believed to arise when an individual's sense of self-worth is threatened, or when they perceive a gap between their ideal self and their actual self.
Learning (Behaviorism) Theory:
Learning theory posits that behavior is shaped by environmental factors, particularly rewards and punishments. Anxiety is believed to be a learned response to stressful stimuli, such as social situations or specific phobias.
Psychodynamic Theory:
Psychodynamic theory focuses on the unconscious mind and past experiences, particularly childhood experiences, as determinants of behavior. Anxiety is believed to result from unresolved conflicts or repressed emotions that stem from early experiences.
Sociocultural (Cross-Cultural) Theory:
Sociocultural theory emphasizes the influence of social and cultural factors on behavior. Anxiety is believed to be influenced by cultural norms and values, such as the importance placed on social status or the degree of collectivism versus individualism in a given culture.
Overall, anxiety can be understood through multiple psychological theories, each offering a unique perspective on the causes and manifestations of anxiety. These theories can inform the development of interventions and treatment approaches to address anxiety in individuals.
some insects and vertebrates can reproduce asexually by ________.
Answers
Some insects and vertebrates can reproduce asexually by a process called parthenogenesis. Parthenogenesis is the development of an organism from an unfertilized egg, where the offspring inherit genetic material solely from the mother.
In this type of reproduction, there is no genetic contribution from a male individual or the fusion of gametes.Parthenogenesis can occur through various mechanisms. In some cases, an egg develops without any prior fertilization, a process known as apomixis. In other instances, a stimulus triggers the development of an egg without fertilization, such as in response to environmental conditions or hormonal changes.
Parthenogenesis enables certain species to reproduce without the need for a mate, allowing for rapid population growth and colonization in favorable conditions. However, it can limit genetic diversity and increase the susceptibility of populations to environmental changes and diseases.
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Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you thinkit should be a scientific law? Explain your response.
Answers
Answer:
Cell theory meets the definition of scentific theory because cell theory is historic scientific theory and it should be a law because it is universally accepted.
My request: Can you please leave a follow? Thanks!
What is an Example of Structural Adaptation for Reproduction with Plants?
Flexible Stems
Spines Development
Deep Root Systems
Ballistic Seed-Dispersal
Answers
Answer:
An example of structural adaptation for reproduction with plants is c. Deep root systems.
Deep root systems are a structural adaptation that allows plants to access water and nutrients from deeper layers of soil, increasing their chances of survival in dry or nutrient-poor environments. These deep roots also allow the plant to establish itself firmly in the soil, increasing its chances of reproducing successfully.
Option a. Flexible stems, b. Spines development and d. Ballistic seed-dispersal are not structural adaptations related to reproduction, but other strategies that plants use to survive in different environments. Flexible stems allow plants to bend and sway in the wind without breaking, spines development protect plants from herbivores and Ballistic seed-dispersal is a way for plants to scatter their seeds away from the parent plant.
give me brainiest
what nitrogenous bases are found in dna but not rna
Answers
The nitrogenous bases found in DNA but not RNA are thymine (T) and deoxyribose (dR).
DNA (deoxyribonucleic acid) contains four nitrogenous bases: adenine (A), cytosine (C), guanine (G), and thymine (T). Thymine is unique to DNA and pairs specifically with adenine through hydrogen bonds in the DNA double helix structure.
On the other hand, RNA (ribonucleic acid) contains the nitrogenous bases adenine (A), cytosine (C), guanine (G), and uracil (U). Uracil replaces thymine in RNA and pairs with adenine during RNA synthesis and protein synthesis.
Therefore, thymine is the nitrogenous base that is specifically found in DNA and not in RNA.
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What terms did you put in the cytoplasm to show they belong to
both prokaryotes and eukaryotes?
Answers
Answer:
i think it is The DNA will be replicated and condensed.
Explanation:
the synthesis of a tripeptide by a prokaryotic cell requires many steps. which list places steps in the correct order of action (not all steps are represented)?
Answers
Aminoacyl-tRNA binding; peptide-bond formation; elongation factor G binding.
What about prokaryotic cell?A single-celled organism known as a prokaryote is devoid of a nucleus and other membrane-bound organelles. The Greek letters v and v are where we get the word prokaryote. Prokaryotes were categorized under the empire Prokaryota in the two-empire system developed by Édouard Chatton.The earliest single-celled microbes on Earth are prokaryotic cells. Bacteria and archaea are prokaryotes. Cyanobacteria are among the prokaryotes that carry out photosynthesis. Since a prokaryotic cell only has one membrane, all processes take place in the cytoplasm.Separate prokaryotic subgroups with purportedly distinct evolutionary histories are called bacteria and archaea.All prokaryotic cells have a nucleoid area, ribosomes, which create proteins, DNA and RNA as their genetic material, and cytosol, which has a cytoskeleton and organizes cellular components. Prokaryotic creatures, on the other hand, are a tremendously diverse collection of living things and exist in a wide range of sizes and shapes.Learn more about prokaryotic cell here:
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Identify the structures labeled in the diagram, Label B ribosomes lysosomes vacuoles
Answers
Answer:
ribosomes
Explanation:
just trust me ig dosent seem like you have another choice atm
Answer:
A
Explanation:
Got it right on edge
What is the major thing happening to a cell during G1?
Answers
Answer:
During this stage new organelles are being synthesized (made), so the cell requires both structural proteins and enzymes, resulting in great amount of protein synthesis. Color the G1 phase green on the cell cycle drawing.
Explanation:
What is something you would you like to lean about trading in the stock market ?
Answers
Answer: Patience is your weapon. Use it
Learners do not stop
The path to success is never a straight line
Explanation:
Which of the following abiotic factors are used to
define terrestrial biomes?
Select one:
a. vegetation only
b. rainfall and temperature
c. altitude and rainfall
d. altitude and temperature
e. altitude and vegetation
Answers
Answer:
I believe the answer is B. Rainfall and tempature.
Explanation:
They are both main factors or terrestrial biomes.
can someone please double-check these for me
Answers
Answer:
you are right
Explanation:
osmotic thirst is due to . group of answer choices diminished fluid in the cells dryness of the mouth and throat reduce volume of blood stimulation of pressure receptors
Answers
The osmotic thirst is due to diminished fluid in the cells.
Osmotic thirst refers to a condition where the fluid concentration within cells decreases, leading to increased thirst. This means that osmotic thirst is triggered by an increase in the concentration of salt or solute in the extracellular fluid, causing water to flow out of cells and the cells to shrink.
As a result, the individual experiences thirst, and the person is motivated to drink water in order to restore the body's water balance. Osmotic thirst can be caused by different factors such as an increase in the concentration of salt or solute in the extracellular fluid.
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what happens to a population when biological evolution takes place? a change takes place in the genetic traits passed from one generation of the population to the next. individuals in the population adapt to the environment by developing new traits during their lifetimes. the population becomes more genetically perfect over time as the best traits are passed to
Answers
A change occurs in the genetic traits passed down from one generation to the next.
Natural selection is the process by which living organism populations adapt and change. Individuals in a population are naturally variable, which means they differ in some ways. This variation indicates that some people have traits that are better suited to their environment than others.
Biological evolution is the change in inherited traits in populations of organisms over successive generations. Trait evolution occurs when variation is introduced into a population through gene mutation or genetic recombination or is removed through natural selection or genetic drift.
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How have the newt and snake caused each other to evolve
Answers
State one reason for transport system in plants.
Answers
Answer:
Transportation is the process that involves the movement of water and necessary nutrients to all parts of the plant for its survival.
Explanation:
Transportation is a vital process in plants. Trees transport all the nutrients and water it needs for survival from its roots to the tips of the leaves.
Please help me answer this question. I have a huge test tomorrow and I don't know the answer.
I’m being asked what similarities I would expect to find in highly resilient ecosystems.
Answers
Answer:
is that what your lookin for
Explanation:
The different types of the ecosystem include:
Terrestrial ecosystem.
Forest ecosystem.
Grassland ecosystem.
Desert ecosystem.
Tundra ecosystem.
Freshwater ecosystem.
Marine ecosystem.
a typical characteristic of theocratic governments in the fertile crescent includes —
Answers
Answer:
The religion was polytheistic and was based on nature. The government was a theocracy, but city states were not united under a single government. -After the Sumerians, many civilizations began to take over the Fertile Crescent, the first of which being the Akkadian Civilization. Their most important leader was Sargon.
Explanation:
In 1998, scientists discovered that the expansion of the universe has been accelerating.
What force is causing this phenomena?
dark energy
Hubble's law
the Doppler effect
background radiation
Answers
Answer:
Option A (dark energy) is the right answer.
Explanation:
A hypothetical supplier of power that creates a force that contradicts gravity, which is assumed to have been the catalyst of accelerated universe development. Hypothetically, dark energy counteracts the kinetic energy including its beginning of the globe, meaning that perhaps the multiverse does not have intrinsic curvature, although observational measurements presently indicate.Some other three choices have no relation to the particular situation. Thus option A would be the right solution.
Answer:
A
Explanation:
20.
Lipids and carbohydrates are dissimilar in that -
А
carbohydrates are composed of water and ammonia, and lipids are composed of trisaccharides
B
carbohydrates are composed of monomers, and lipids are composed of polymers.
С
carbohydrates are composed of monosaccharides, and lipids are composed of glycerol and fatty acids.
D
carbohydrates are composed of nucleotides, and lipids are composed of sugars.
Answers
How can chromatin structure be modified in eukaryotes?
Answers
Chromatin structure in eukaryotes can be modified through a number of mechanisms, including histone modifications, DNA methylation, and non-coding RNA.
What is DNA methylation?DNA methylation is a process in which a methyl group is added to the DNA molecule. This modification of the DNA affects the expression of genes, which determines the physical characteristics of an organism. DNA methylation is an epigenetic process, meaning that it does not alter the original DNA sequence but instead affects how the DNA is expressed. During DNA methylation, a single carbon and three hydrogen atoms (CH3) are added to a cytosine nucleotide, which is located next to a guanine nucleotide. This process is catalyzed by enzymes called DNA methyltransferases and can occur on both the DNA strands of the double helix.DNA methylation plays an important role in the regulation of gene expression, which is the process that determines how genes are expressed in an organism.
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Plant hormones serve as chemixal mesenhers between cells and tissues. Auxins is a plant hormone that causes the cells on the shady side of a plant sjoot to elongate
Answers
Answer:
This question is incomplete and lacks options, the whole question is:
Plant hormones serve as chemical messengers between cells and tissues. Auxin is a plant hormone that causes the cells on the shady side of a plant shoot to elongate. The response enabled by auxin is known as -
Options are:
A. geotropism
B. transpiration
C. phototropism
D. photosynthesis
The correct answer is c.
Explanation:
Phototropism is known as a natural and organic movement of a plant towards the light. This is due to the natural ability of a plant to change direction based on changes in lighting in the environment. But external stimulus is not enough. It must generate some changes inside the plant that make it react in this way: hormones. A hormone is a chemical substance produced in one tissue and transported to another, in which it exerts one or more highly specific effects.Auxins are members of a group of plant hormones that are more beneficial to stimulate plant growth, it is the responsible mechanism of the response to phototropism in plants, which tends to be concentrated in the region of the stem and leaves, when a plant lacks this, it can be noted since the bending towards the light source is little or no, that is, auxins make the cells of the stem growth region (rhizomes and stems) lengthen.
dna replication is said to be semiconservative. what does this mean? see concept 16.2 (page 322)
Answers
DNA replication is said to be semiconservative, which means that each new DNA molecule consists of one original strand and one newly synthesized strand.
During DNA replication, the two strands of the double helix unwind and separate. Each original strand serves as a template for the synthesis of a new complementary strand, using nucleotides that are added by DNA polymerase enzymes.
The result is two new DNA molecules, each of which contains one original strand and one newly synthesized strand.
This process is known as semiconservative replication because it preserves half of the original DNA molecule in each new molecule.
The other two models of DNA replication that were initially proposed were conservative replication (where the original molecule stays intact and an entirely new molecule is formed) and dispersive replication (where each new molecule contains segments of both original and newly synthesized DNA).
The discovery of semiconservative replication was a major breakthrough in molecular biology, and it has important implications for understanding DNA replication, repair, and evolution.
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the increased respiration likely arises from an elevated demand for blank to drive electron transport to address the blank efficiency of blank synthesis.
Answers
The increased respiration likely arises from an elevated demand for ATP to drive electron transport to address the low efficiency of photosynthesis synthesis.
Explanation:
Respiration is the process by which cells generate energy in the form of ATP (adenosine triphosphate). During respiration, electrons are transported through a series of reactions known as electron transport chain. This electron transport chain requires ATP to function properly.
The question suggests that there is an increased demand for ATP in the cells. This increased demand may be due to the inefficiency of photosynthesis. Photosynthesis is the process by which plants convert sunlight into energy in the form of glucose. However, this process is not 100% efficient, and some energy is lost in the form of heat.
To compensate for the inefficiency of photosynthesis, the cells increase their respiration rate to produce more ATP. This additional ATP is then used to drive the electron transport chain, allowing for the efficient transfer of electrons and the production of ATP.
In conclusion, the increased respiration is a response to the elevated demand for ATP to drive electron transport and compensate for the low efficiency of photosynthesis synthesis.
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Which kingdom includes an organism that can survive by photosynthesis in the presence of light or by consuming organic material in dark conditions?.
Answers
Protists are eukaryotic organisms that do not plant, animal, or fungus.
The kingdom Protista includes an organism that can survive by photosynthesis in the presence of light or by consuming organic material in dark conditions.
What are protists?Protists are eukaryotic organisms.
The nutrition present in them is mixotrophic.
Some organisms make food through photosynthesis and some are parasites and some consume organic material.
Thus, the correct option is protists, they can survive by photosynthesis in the presence of light or by consuming organic material in dark conditions.
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which membrane proteins require atp to move ions across the membrane?
Answers
The membrane proteins that require ATP to move ions across the membrane are called ATPases or ATP-powered pumps.
These proteins use the energy from ATP hydrolysis to transport ions against their concentration gradient, from an area of low concentration to an area of high concentration.
Examples of ATPases that transport ions include the sodium-potassium pump (Na+/K+-ATPase) that moves sodium ions out of the cell and potassium ions into the cell, and the calcium pump (Ca2+-ATPase) that moves calcium ions from the cytoplasm into the endoplasmic reticulum or the extracellular space.
These pumps play important roles in maintaining the electrochemical gradients across cell membranes, which are essential for many cellular processes, including nerve impulse transmission, muscle contraction, and metabolism.
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Inside the Sarcoplasmic Reticulum we find loads of _________?
Answers
Answer: Calcium ions
Explanation:
HELP !!
Which process that is necessary for cell
reproduction occurs during cell growth?
A: DNA replication
B: RNA replication
C: Dissolution of the cell membrane
D: The nucleus falls apart
Answers
Answer:
A: DNA replication