The concept that engaging in a behavior over and over again can lead to changes in your brain is known as Neuroplasticity.
By creating new synaptic connections throughout time, the brain is said to be neuroplastic, or able to adapt to changes in the environment.
It is described as the nervous system's capacity to alter its activity in response to internal or external stimuli by rearranging its connections, structure, or functions following wounds like a stroke or traumatic brain injury Neuroplasticity Alludes to the physiological adjustments made to the brain as a result of our interactions with the outside world. The connections between the cells in our brains change as our demands change from the time the brain starts to grow in utero until the day we die. This dynamic process enables us to absorb knowledge from and adjust to various experiences.
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Supposed the two thermometers on a sling psychrometer show almost identical readings. was the psychrometer more likely used at a beach or in a desert in california? explain you answer.
Answer :There is high humidity if there is no big difference between the temperature reading of the two thermometers.
Explanation: A psychrometer or sling psychrometer is a device used to measure relative humidity. It has two thermometers. One thermometer is called a wet-bulb thermometer.
Str analysis is a dna profiling technique that makes use of the fact that different people have __________.
Various numbers of short DNA sequences repeated at specific locations throughout the genome.
What are STRs?Regions of non-coding DNA called short tandem repeats (STRs) have repeats of the same nucleotide sequence. A person's DNA contains STRs at several genetic loci or locations. A nucleotide sequence's frequency of repetition in each STR can be calculated using the size of the STRs.
What role do STRs play in DNA profiling quizlet?What purpose do STRs serve in DNA profiling? a. Because STRs differ amongst tissues within an individual, they can be utilized to identify the organ from where the DNA originated.
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which statements about euchromatin and heterochromatin are correct? heterochromatin is less condensed than euchromatin. the majority of transcription takes place on euchromatin. most genes are present in heterochromatin. euchromatin undergoes condensation and decondensation throughout the cell cycle. euchromatin largely consists of repeated sequences.
The statements about euchromatin and heterochromatin are correct as the majority of transcription takes place on euchromatin and heterochromatin is less condensed than euchromatin as well as euchromatin undergoes condensation and decondensation throughout the cell cycle. Thus, option A, B, and D are correct.
What is euchromatin?The term euchromatin has been considered as the part of chromosomes which are loose in the form and are involved in the transcription process because these are available for the transcription into specific protein products. On the other hand, heterochromatin has been considered as the region of chromosomes that appears dark in staining process.
This region has transcriptionally inactive because of the DNA template in the DNA-protein complexes and which means that genes present in the region are not active and not involved in the process of transcription.
Therefore, The statements about euchromatin and heterochromatin are correct as the majority of transcription takes place on euchromatin and heterochromatin is less condensed than euchromatin as well as euchromatin undergoes condensation and decondensation throughout the cell cycle. Thus, option A, B, and D are correct.
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what is the primary morphological feature that separates the human lineage from other primates?
The primary morphological feature that separates the human lineage from other primates is erect posture.
Hominins are distinguished from other primates, both living and extinct, by their erect posture, bipedal locomotion, larger brains, and behavioral characteristics such as specialized tool use and, in some cases, language communication. Humans have better motor control, less body hair, and a much more advanced brain.
Humans are distinguished from other primates by significant differences in cognitive abilities as well as a significantly larger brain. These differences are related to metabolic changes in the human brain, as evidenced by the relative upregulation of energy-related genes and metabolites.
Primates have a large brain and agile limbs. Non-primate brains are small, and their limbs are rigid. The main distinction between primates and non-primates is the size of the brain and the limb flexibility.
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not all of the energy harvested during the chemical breakdown of food molecules is captured and stored in atp. what happens to the rest of the energy?
The rest of the energy harvested during the chemical breakdown of food molecules is released as heat.
Digestion is the process by which the molecules in a food are broken down and energy is made through these molecules in the form of ATP. As the breaking down of food is an exothermic process, hence heat is released during this process.
The excess energy that is harvested from the breakdown of food is stored inside the body so that it can be utilized whenever needed. The rest of the energy is lost as heat as the process of breaking down of food is an exothermic process.
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Which normal meiotic event would be the most likely explanation for the mutation that causes williams syndrome?.
Cytokinesis is the meiotic event that would mostly cause Williams syndrome.
What is Williams syndrome?
Williams syndrome (Williams-beuren syndrome) is a rare genetic disorder. It is characterized by delays in growth before and after birth, varying degree of mental deficiency, short stature, and distinctive facial features that become pronounced with age.
The syndrome can be usually identified when the child is a baby or during early childhood.
Williams syndrome occurs due to loss/ deletion of genetic material of specific part of chromosome 7. There are 25 to 27 genes in the deleted region, and many believe that the loss of many of these genes is what contributes to the characteristic features of the syndrome.
A person with Williams syndrome is usually overfriendly, highly sociable, empathetic, with some anxiety relating to social events.
Therefore, Cytokinesis is the meiotic event that would mostly cause Williams syndrome.
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Multicellular organisms generally utilize more complex gene regulation than unicellular organisms via mechanisms that include?.
Multicellular organisms generally utilize more complex gene regulation than unicellular organisms via mechanisms that include transcriptional repression and epigenetic modification.
Gene is the most basic factor of heredity that contains the genetic information for any trait/character. A gene is composed of two alleles. These genes are present on the chromosomes.
Epigenetic modification are the alterations in genes that are non-heritable. The sequence of the genes is not disturbed in this alteration. This means they cannot be passes on from one generation to another. However, these modifications can regulate the expression of genes. There are three types of genetic modifications: DNA methylation, histone modification, and noncoding RNA action.
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during your fetal pig dissection you discover an extremely long tubular organ that is associated with a dense network of vascular tissue. the organ most likely is the . group of answer choices large intestine stomach small intestine esophagus
The extremely long tubular organ you discover during your fetal pig dissection that is associated with a dense network of vascular tissue is most likely the small intestine.
The small intestine is the longest segment of the gastrointestinal tract, which is the long, continuous pathway through which food travels in your digestive system. Food is broken down into liquid in the small intestine, where the majority of its nutrients are absorbed. The waste is then transferred to the large intestine.
A fetal pig dissection is useful for anatomy studies because the organs are easy to find and identify due to their size.
The small intestine is by far the longest section of the gastrointestinal tract, measuring approximately 22 feet in length. The lining of the small intestine has a large surface area that has been scrunched into folds and peaks. Many layers of tissues and muscles line the tube. Nerves, blood vessels, immune cells, and lymphatic glands are all found in the tissues.
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a particular triplet of bases in the template strand of dna is 5'-aaa-3'. the anticodon on the trna that binds the mrna codon is?
A particular triplet of bases in the template strand of dna is 5'-aaa-3'. the anticodon on the trna that binds the mrna codon is UUU.
A codon is a three-nucleotide or triplet collection discovered on mRNA that codes for a sure amino acid all through translation. The anticodon is a 3-nucleotide collection discovered on tRNA that binds to the corresponding mRNA collection. The amino acid transported through the tRNA molecule is determined via the anticodon sequence.
It's far a trinucleotide series this is positioned at one quit of tRNA (transfer RNA), which is complementary to the codon gift in the mRNA sequence. Examples of anticodon: The codon CGA on mRNA collection codes for amino acid cysteine, tRNA similar to this codon is UCU anticodon.
To decide the general anti-codon collection so one can suit a strand of mRNA, clearly retranscribe the RNA collection; in different phrases, write out the complementary bases. the use of the previously referred to mRNA collection, the tRNA anti-codon collection is A-A-T-C-G-C -U-U-A-C-G-.
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an autosomal dominant disease in which patients lack the plasma factor that mediates platelet adhesion is called:
Von Willebrand disease is an autosomal dominant condition in which patients lack the plasma component necessary for platelet adhesion.
What autosomal illness is the most prevalent?
One of the most prevalent hereditary single gene diseases in Caucasians is cystic fibrosis. One in every 2500 Caucasian infants is born with CF, and one in every 25 Caucasians with a northern European ancestry possesses the CF gene.
What are autosomal dominant and recessive diseases?Autosomal Dominant Condition
A child who inherits a dominant allele from a parent who has an autosomal dominant condition has a 50% probability of developing that ailment as well. A mutated gene must exist in two copies (one from each parent) for an autosomal recessive disorder to manifest.
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Which of the following is not a basic feature of a map?
O title
O scale
O legend
O fault line
Answer:
d) Fault line
Explanation:
Fault line is not a basic feature of a map. The basic features of map are title, scale, legend, etc. Hence, option (d) is correct.
Which part of the dna model is most directly associated with the coding of genetic information.
Nucleotide is referred to as the part of the DNA model which is most directly associated with the coding of genetic information.
What is DNA?This is referred to as deoxyribonucleic acid and it is the genetic material of most living organisms and it ensures that traits are passed from the parent to the offspring.
The nucleotide is present in it and consists of different compounds such as sugar molecule such as deoxyribose, a phosphate group and a nitrogen-containing base. This part is where the coding of genetic information takes place during reproduction thereby making it the correct choice.
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biofilms multiple choice are a haphazard mixture of bacteria. are a polysaccharide-encased community of microorganisms. may enhance bioremediation efforts. may protect organisms against harmful chemicals. are a polysaccharide-encased community of microorganisms, may enhance bioremediation efforts and may protect organisms against harmful
Biofilms are a polysaccharide-encased community of microorganisms, may enhance bioremediation efforts and may protect organisms against harmful.
Biofilms are group of microorganisms occupied in the matrix of extracellular polymeric substance. Biofilm are shaped when planktonic cells attach to a substrate and become fixed.
Biofilms forms a thick layer of prokaryotic organisms that have accumulated to form a colony. These colonies are attached to a surface forming a slime layer which works in protecting the microorganisms.
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The two strands of a dna double helix are antiparallel. This means that __________.
Two strands of DNA double helix are said to be anti-parallel which means that while one of the strands runs in the 5'→3' direction, the other one runs in the opposite direction, i.e. 3'→5' direction.
The anti-parallel nature of the two strands in a DNA double helix simply means that if one strand has the polarity 5'→3' then the other exhibits opposite polarity, i.e. 3'→5'. The DNA double helix model was put forward by Watson and Crick in the year 1953 which was based on the X-ray diffraction data generated by Maurice Wilkins and Rosalind Franklin. The DNA molecule is made up of two strands that are joined together with the help of Hydrogen bonds.
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A characteristic found in all the organisms in a clade that also appeared in the extinct common ancestor is an example of.
A derived character is one that is shared by all the species in a clade and also existed in their extinct common ancestor.
What is a good illustration of a characteristic?
The distinctive qualities or traits of anything are its characteristics. Consider traits as the attributes that set one object or a person apart from another. The chameleon, for instance, is known for its capacity for camouflage.
What term best describes a Characteristic ?
The words distinct, unique, and strange are some popular synonyms for characteristic. While all of these terms refer to "identifying a special quality or identity," the term "characteristic" refers to something that sets an individual, item, or class apart from others.
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One kind of plasmid in bacteria is called an r plasmid. What kinds of genes are typically present on such plasmids?.
These plasmids frequently contain genes that are resistant to antibiotics.
Photo of An r plasmid is one of the plasmid types found in bacteria. Which types of genes are usually found on such plasmids? .tra genes are found in fertility F-plasmids. They have the capacity for conjugation, which causes the expression of sex pili. plasmids called "resistance" (R) carry genes that make organisms resistant to toxins or antibiotics.
R plasmids: what are they?photo of An r plasmid is one of the plasmid types found in bacteria. What types of genes commonly exist on such plasmids. Many bacterial strains contain plasmids, an extrachromosomal genetic component.
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What is the regulatory gene cascade triggered by bicoid that leads to the differentiation of segments along the anterior-posterior axis of the fly embryo?.
The bicoid starts a regulatory gene cascade that leads to segment differentiation along the fly embryo’s anterior-posterior axis.Hox, segmentation, and effector genes are among these genes.
There are numerous genes that encode transcription factors, and these transcription factors in turn cause the production of more transcription factors, causing cascades of gene expression that amplify the initial signal via various signalling pathways.In fruit flies, approximately 25 genes control the differentiation of the embryo into discrete segments, resulting in changes in the number and organisation of the segments. Mutations in these genes frequently result in the disruption of entire groups of segments.Hox genes, a family of homeotic transcription factors, play a crucial role in controlling the body design along the craniocaudal axis.The Bicoid and Nanos gene products can be used to identify the anterior-posterior axis in Drosophila. Nurse cells are responsible for transcription of the bicoid gene’s mRNA. The unfertilized egg contains the bicoid mRNA close to its anterior pole. As a result, the anterior morphogen is the bicoid gene product. After fertilisation, the bicoid mRNA begins to be translated.
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the acacia ant gains shelter and nutrients from the acacia plant. in turn, it protected the plant from predators. this is an example of .
The acacia ant gains shelter and nutrients from the acacia plant. In turn, it protected the plant from predators. This is an example of defensive mutualism.
In shielding mutualism, one companion gets meals and refuge and in return, it facilitates the companion via way of means of protecting in opposition to the herbivores or predators or parasites. For instance The aphids and the ants.
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Need help with Biology question
The given forms of digestion represent hydrolysis.
What is hydrolysis?Hydrolysis: A chemical decomposition process in which bonds are broken by the addition of water. Hydrolysis reactions break bonds and release energy. Biopolymers are ingested and hydrolyzed in the gastrointestinal tract to form small molecules that can be absorbed by cells and further broken down to release energy.
Sucrose is hydrolyzed into its monosaccharides fructose and glucose by the enzyme sucrase, an α-glucosidase in the human small intestine.Hydrolysis of lactose gives galactose and glucose. Galactose is converted to glucose by the action of an NAD-dependent enzyme called UDP-galactose-4-epimerase.Starch is a condensation polymer of glucose monomer units. Large starch molecules react with water and break down into smaller sugar molecules. The starch is said to be hydrolyzed.To know more about hydrolysis, visit:
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Which hormones help the body resist stress and make stored nutrients available to prepare the body for action?.
By drawing on protein reserves in the liver, cortisol supplies the body with glucose.
Which three hormones are released as a result of stress?The following list of stress hormones is not exhaustive: The primary human stress hormone is cortisol. Catecholamines like norepinephrine and adrenaline. Vasopressin.
Which two hormones start the process of our body responding to stress?The body responds to stressful situations by signaling the production of hormones that give you a boost of energy. The adrenal medulla releases the hormones norepinephrine and epinephrine, also known as noradrenaline and adrenaline, respectively.
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Why do neural cells have different characteristics than skin cells?.
Explanation: Different genes are expressed in neural than in skin cells.
In eukaryotic cells the default position of most genes is 'off', (they're not expressed). Explain why?
As a result of histones covering the majority of the DNA and thus preventing RNA polymerase interaction, most genes in eukaryotic cells are typically in the "off" state by default.
What is the cause of abnormal histones?Because the histones largely cover the DNA and block the polymerase and RNA binding, the transcriptional state of eukaryotic genes is off by default. The most prevalent protein in a cell is histones. They are in charge of the complex of DNA and proteins known as chromatin's creation. In eukaryotes, the histone proteins serve a variety of purposes, including cell division and development.
How do eukaryotic genes work?The proteins known as histones are in charge of keeping RNA polymerase from interacting with DNA. All eukaryotic cells are constructed from eukaryotic genes. They are in charge of a cell's whole life cycle and everything that takes place inside of it. They are in charge of transcription of lengthy nucleotide chains in DNA.
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The smallest number of clones that represents the entirety of the genome are called what?.
what is an euglena draw and label it
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ssuming kelly did have a bacterial infection when she went to the urgent care center, what would her likely antibody isotypes and general titer profiles possibly have looked like compared with those of an immunocompetent patient? please select all applicable answer choices. there may be more than one correct answer.
Kelly's IgE antibody titers would be slightly greater than they were at baseline, but they would be much lower than they would be in an infected person.
Which of the above situations represents a primary immunodeficiency?Agammaglobulinemia, a hereditary disorder that causes lowered antibody production, affects your patient from birth. the immune system attacking healthy self-tissues that should typically be left alone, leading to chronic diseases. Proteins are a less rich source of energy than fats since fats are highly reduced molecules.
What are three primary immune response instances?In vitro primary immune responses demand a highly immunogenic antigen. Hemocyanin, ovalbumin, and sheep erythrocytes are a few examples of substances that have proven effective for investigating various immune response-related topics in vitro as opposed to certain antigen-related subjects.
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Which period did the sheep numbers in the us stabilize due to 5-6 million due to ewe lab retention programs?.
The sheep population in the US stabilized between 1996 and 2000 at 5–6 million as a result of ewe lab retention efforts.
Which of the following factors is included while figuring out carcass maturity?The top three thoracic vertebra (buttons), as well as the sacral and lumbar vertebra, can be used to determine the carcass's skeletal maturity. Additionally, consider the ribs' color and shape.
Which of the following traits is considered while assigning lamb quality grades?For ranking purposes, lamb carcass competitions frequently employ %BCTRC. Grade of Quality The carcass's tenderness, juiciness, and flavor are measured by quality grades, which are also known as classifications. Three elements—maturity, flank streaking, and conformation—are used to establish the final quality grade.
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Organisms that live in desert and desert-scrub biomes have developed unique adaptations that aid in their survival. coyotes are crepuscular desert mammals that grow to be approximately three feet tall and weigh between 20 and 50 pounds when full-grown. how does being crepuscular help enable the coyote to survive the heat of the desert? a. it is only active at dawn and dusk b. it is only active at noon c. it is only active at night d. it is only active in the morning please select the best answer from the choices provided a b c d
Answer:
A.
Explanation:
During replication, the strands of a double-stranded dna molecule separate from each other when bonds are broken between their.
When bonds are broken between their phosphate groups, the strands of a double-stranded DNA molecule separate from each other.
What is DNA replication?
DNA, as we know, is a self replicating structure.
During replication of DNA, the DNA produces multiple copies of itself. DNA replication is a biological polymerization.
The reactions are enzyme catalyzed. The main enzyme is DNA Polymerase in the replication process.
It involves the steps initiation, elongation, and termination.
Initiation: initiation is the point at which replication begins. A region called the origin of replication is where it initiates. After spotting the origin, unwinding of the two DNA strands occurs. Elongation: after separation of the strands, the polymerase enzymes start synthesizing the complementary sequence in each strand. The parental strands are a template for the newly synthesising daughter strands. Elongation is always unidirectional i.e. DNA always polymerizes only in the 5′ to 3′ direction. Termination: termination is different in different organisms.Therefore, when bonds are broken between their phosphate groups, the strands of a double-stranded dna molecule separate from each other.
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detached earlobes are inherited as dominant. henry with detached earlobes claims to be the father of a famous movie star with the recessive attached earlobes. what genotype must henry have for this to be true? show your work. assume mom is heterozygous.
Has at least one parent with detached earlobes is the genotype must henry have for this is to be true.
What is genotype?The total number of genes passed from parents to kids is known as a genotype. An alternative definition of a genotype is the entire collection of heritable genes that can be passed from one parent to the next. These genes aid in encoding particular traits and qualities that an organism can physically express (phenotype).
The three genotypes are homozygous dominant (PP), Heterozygous (Pp) and Homozygous (pp).
What is phenotype?The observable qualities or characteristics of an organism that are the outcome of the interplay between genes and environmental variables are referred to as phenotypes. These characteristics include outward appearances and any other characteristics we can see.
An organism's physiology, biochemistry, and behaviour are all part of its phenotype. The phenotype is influenced by lifestyle choices and environmental variables, in contrast to genotype, which is inherited from the parents. Temperature, dietary intake, relative humidity, and an organism's mental state are all environmental factors.
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Why is it important for the surface area-to-volume-ratio of exchange surfaces to be maximized?.
Strong "driving forces" help to hasten thermodynamic processes that reduce free energy when there is a high surface area to volume ratio.
How significant is the surface area to volume ratio for drug exchange?All areas of the cell are easily accessible, and substances can diffuse in and out at a high rate. Larger creatures need transport mechanisms to carry chemicals, like oxygen, around the body to where they are needed because of their lower surface area: volume ratio.
Why is it critical that exchange surfaces have more surface area?
The area across which gases and other materials can be carried into and out of the organism via diffusion and active transport is expanded as a result, which is favorable. A gas exchange surface illustration with a large SA: volume ratio is the alveoli.
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