how the sequential opening and closing of voltage-gated sodium and potassium channels leads to depolarization and repolarization of the membrane and results in the propagation of a signal along the axon of a neuronal cell

Q: Chagas disease, also known as American trypanosomiasis, is a tropical parasiticdisease caused by…

A: Given information  Chagas disease It is also known as American trypanosomiasis. It is a tropical…

Q: You discover that zebrafish contain a gene that has a similar sequence to Drosophila abdoless.…

A: Drosophila melanogaster also known as fruit fly studied extensively in biology due to similar…

Q: 12. hybrid purplo 13. hotorozygous purplo flowors x whito floworo flowars x wtillo lowors PP PA AP…

A: The Punnett square is a method for predicting the outcomes of genetic crosses. It was developed by…

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A: DNA is a genetic material that is found in the nucleus of eukaryotic cells and in the nucleoid…

Q: Explain the difference between good carbs and bad carbs.

A: Introduction Carbohydrates, often known as sugar molecules, are sugar molecules. Carbohydrates are…

Q: Vhich of the following is FALSE about homology? Homology refers to traits inherited from a common…

A: * Homology means having similarity in structure and physiology or development of of organisms based…

Q: 1. Name the enzyme of gastric juice released as proenzyme in the human alimentary canal.

A: Introduction - The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the…

Q: What is the relationship between biodiversity and foodsecurity? Between biodiversity and…

A: Introduction Biodiversity is necessary for all species on Earth, including humans, to function…

Q: Which features characteristic of humans are unlikely to fossilize? a. the bones and dung b. the jaws…

A: A fossil is any preserved remains, impression, or trace of any once-living thing from a past…

Q: Unlike naive T lymphocytes, Select one: a. memory T lymphocytes obtain energy from glycolysis. b.…

A: Naïve T cells are precursors of the memory and effector T cell and naïve T cells do not produce any…

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A: The basic unit of heredity is the gene, which is a DNA region that codes for a specific protein.…

Q: The T cell subset recognized as as comprising the tissue-resident memory cell population in the…

A: Answer :- Correct option is a) Treg cells

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A: Flatworms are more complex than cnidarians. Cnidarians have two layers of cells, the ectoderm and…

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A: All living organisms and body tissues are created of the smallest unit which will go on its own. A…

Q: Which of the following functions is NOT applicable to the role of the CD8+ T cells that infiltrate…

A: Answer :- Correct option is D

Q: how many different proteins composed of 100 amino acids could possibly exits?'

A: A protein molecule is made up of a monomer which is known as amino acid. So we can say the amino…

Q: In 1822, an Arkansas farmer discovered a fossil when a hill collapsed on his property. The farmer…

A: Introduction :- Fossils are the fossilised remnants of plants and animals that were buried in…

Q: What is the evidence that the Chloroplasts and Mitochondria found in the eukaryotic plant cells are…

A: Chloroplasts and mitochondria both are double membrane-bound semi-autonomous eucaryotic cell…

Q: What are some of the hypothesized causes of Earth’s biggest mass extinctions?

A: A mass extinction is typically described as the extinction of roughly three-quarters of all species…

Q: Which of the following is a FALSE statement regarding human chromosomes?   A. The chromosome…

A: Introduction :- Chromosomes are threadlike structures made up of protein and a single molecule of…

Q: urther discussion questions: a) What is the wavelength of UV light with maximal absorbance by…

A: Proteomics is a new field based on the human genome project. Proteomics is primarily concerned with…

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A: A cell is a cytoplasmic mass that is outwardly attached by a cell membrane. Cells are the smallest…

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A: Daylight saving time is a practice of advancing clocks during warmer months to reduce the amount of…

Q: Identify five (5) errors in the figure below. Draw a corrected version below it and encircle all the…

A: DNA and RNA are polynucleotides that are composed of a chain of nucleotide monomers with distinct…

Q: The T cell subset recognized as as comprising the tissue-resident memory cell population in the…

A: T cell mainly two types helper T cell ( Tc) and cytotoxic T cell ( Tc).  Tc cell can kill certain…

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A: There are three components to the Extracellular Matrix. Insoluble collagen - structural framework…

Q: The light that kill germs and used to sterilize medical instruments is Visible. UV. IR. Laser. Motor…

A: I gave you the answers in step 2 onwards.

Q: Sympathetic neurotransmitters such as norepinephrine predominantly bind beta2- adrenergic receptors…

A: Introduction Immune system:- It protects your child's body from outside invaders. Without an immune…

Q: Virus-specific T cell subset found in the brain after infection with the virus in question is= CD4+…

A: Tissue resident memory T cells (TRM) constitute a recently identified T cell lineage that is…

Q: Electrophoresis data: Measure the distance (in millimeters) that each fragment traveled from the…

A: Introduction Gel electrophoresis is a laboratory technique for separating DNA, RNA, and protein…

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A: Yes, Vitamin B12 substitutes are absorbed mostly through the ileum.The intrinsic factor is a…

Q: The "cholinergic anti-inflammatory pathway" involves B1a B cells Treg cells CD4 T cells CD8 T cells…

A:

Q: DUE IN 30 MINUTES. Please answer all the questions, NO NEED FOR ANY EXPLANATION, just answer only.…

A: Distal part of femur articulates with tibia and patella.  Ans 1) Patella    Dermal papillae are…

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A: Introduction Tissue is a collection of cells with similar structures that work together as a unit.…

Q: A newborn infant has not started breastfeeding yet. Which isotype of maternal antibody/antibodies…

A: Introduction :- Antibodies are immune system proteins that circulate in the bloodstream and identify…

Q: functions of the separation of homologous chromosomes and of the separation of dentical chromatids…

A: The detachment of homologous chromosomes in meiosis 1 serves two purposes: 1. it reduces the total…

Q: calculate the narrow sense heritability of height between aunts and nieces if the obscured phenotype…

A: Introduction :- Animals with high values for one phenotype also tend to have high (or low) values…

Q: NAME THE PROTEIN! It is a Golgi resident enyme It attaches a phosphate group to mannose sugars on…

A: The targetting of lysosomal enzymes are mediated by GERL transport system. The lysosomal enzymes are…

Q: What is the relationship between evolution and natural selection?

A: Answer :  Evolution is the new species or something new evolve in a species and natural selection is…

Q: 10. Humans can be classified as deuterostomes. Explain what that means.

A: Deuterostomia animals are characterized by the formation of their anus before the mouth during…

Q: Chimpanzees and gorillas are genetically similar, sharing more than 98 percent of their DNA. While…

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…

Q: Describe the similarities and differences between prokaryotic and eukaryotic promoter sequences.

A: The transcription is the production of RNA from the DNA template that is the first step of gene…

Q: Descrive  the difference between a missense mutation and a nonsense mutation?

A: The mutation is the change in the DNA sequence that can be responsible for changing in the amino…

Q: What is true of the Progress Zone model? a) the length of time a cell resides in the progress zone…

A: * The classical progress zone model proposes started that the limb bud grows  under the influence of…

Q: Which of the following is NOT one of Gregor Mendel's principles of inheritance? O principle of…

A: Mendel is known as father of genetics. Mendel discovered the basic principles of heredity.

Q: explain Sudden cardiac arrest. in detail  Provide exmples.  Provide a diagram.

A: Sudden cardiac arrest is not a heart attack (myocardial infarction). Heart attacks occur when there…

Q: What organs can you donate while alive?

A: Organ donation takes healthy organs and tissues from one person for transplantation into another. It…

Q: Your dream profession/ career is Doctor answer only 3,4,5 thank you 3. What is your general…

A: I am myself a doctor so can answer this. 3. The image of a doctor is  Calm Highly Knowledgeable…

Q: Once an RNA polymerase has initiated transcription, it will release the sigma factor or sigma…

A: RNA polymerase is a multi-unit enzyme that uses transcription to create RNA molecules from a DNA…

Q: Why don't paleoanthropologists use C-14 dating to understand when early hominins lived?

A: Carbon-14 dating, also known as carbon dating, is a method of determining age based on radiocarbon…