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Q: Unlike bacterial cells, the nucleus of a eukaryotic cell is bounded by a double-layered membrane…

A: Eukaryotic cells are cells that have a distinct membrane-bound nucleus and other organelles that are…

Q: which of the following statements is correct about the movement of water across a plasma membrane…

A: Introduction :- Ion channels are specialized membrane proteins that create selective pathways for…

Q: What type of joint is in elbow and  articulations of teeth in the jaw bones ? explain

A: Introduction :- A joint is a structure that connects two or more bones together, allowing movement…

Q: Explain the disadvantage of caponization

A: Capsonization Is a surgical technique in which the sexual behaviour of male chickens are altered.…

Q: Binding of the water-soluble hormone to Go protein. Save for Later Ca2+ a Gq protein inositol…

A: Introduction  A hormone is a chemical messenger that is produced by endocrine glands or cells and…

Q: Adenike and her partner, Debare, are expecting their first child. Adenike is healthy as are her two…

A: Introduction :- Marfan syndrome is a genetic disorder that affects the connective tissue in the…

Q: What triggers the release of acetylcholine from a synaptic terminal?

A: Note:- Sorry, please note that as per our company's honor code, we are allowed to author only the…

Q: What would happen if there was increased of decreased the concentration of antimicrobials used on…

A: Introduction :- Antimicrobial refers to any substance or agent that has the ability to kill or…

Q: Please analyze the following STR allele genotypes, and determine who biological father is:   Mom…

A: DNA Paternity Testing: In order to establish if a person is the biological parent of another person,…

Q: A. What is the genotype of an individual who is heterozygous for two traits represented by the…

A: According to Mendel's law of independent assortment, the alleles of two or more distinct genes are…

Q: How can we use dihybrid cross in understanding Mendelian genetics?

A: Mendelian inheritance is a type of biological inheritance that adheres to the principles proposed by…

Q: 6. Red blood cells are what percentage of the blood? A. 10% B. 25% C. 45% D. 55% 7. A person with…

A: Introduction :- An antigen is any substance that can trigger an immune response in the body.…

Q: Why is variation so important in Darwin’s theory?

A: Darwin's theory : Evolution occurs because of a phenomenon called natural selection.

Q: eukaryotic cells differ from prokaryotic cells in that eukaryotic cells have a. mitochondria b.…

A: Introduction :- Prokaryotes are unicellular organisms that lack a nucleus and other membrane-bound…

Q: Explain how speciation occurs and provide some examples.

A: Introduction  Speciation is the process by which new species arise from existing ones. This occurs…

Q: The instructive model of lineage commitment asserts that: coreceptor engagement with MHC generates…

A: T cells expressing the alpha beta T cell receptor (TCR) can be divided into CD4+8- and CD4-8+…

Q: State if the DNA is written 5' to 3' or 3' to 5' Transcribe the sequence. Include the 5' and 3'…

A: Introduction :- A codon is a sequence of three nucleotides (A, C, G, or T) that encodes for a…

Q: Which of the following mutations will MOST drastically change the polypeptide sequence for which the…

A: MUTATION A change in the sequence of DNA or mRNA is known as a mutation. > The ultimate result of…

Q: You discover a new antibiotic that inhibits translation. Upon futher investigation, you find that…

A: Introduction :- Elongation is the second phase of protein synthesis (translation), during which the…

Q: When you exercise your body gets hotter. Stored chemical energy in the form of glucose and muscle…

A: Introduction :- Muscle glycogen is a form of stored carbohydrate that is found specifically in…

Q: Acquisition of antibiotic resistance is driven by bacterial exposure to antimicrobial agents…

A: Antibiotic resistance is the ability of bacteria or other microorganisms to withstand the effects of…

Q: You look at a slide you prepared and, despite the fact that you know you put organism onto the slide…

A: Gram-staining is a laboratory test that detects the presence of bacteria and also helps to…

Q: How does NADH/FADH2 store energy? How is it released?

A: The electron carriers NADH (nicotinamide adenine dinucleotide) and FADH2 (flavin adenine…

Q: 4. Another name for platelets is A. erythrocytes C. thrombocytes B. leukocytes D. granulocytes…

A: Blood is a specialized fluid, made up of plasma, red blood cells, white blood cells and platelets.…

Q: Label the part of the respiratory system.

A: Respiratory system consists of structures which carry oxygen from outside of body to the blood &…

Q: 4. How does ATP store energy? How is it released?

A: Adenosine triphosphate or ATP is a nucleotide also known as energy currency of the cell. This…

Q: Step by step Protein Hormone Synthesis

A: Introduction :- Proteins are complex macromolecules made up of amino acids. They are essential to…

Q: 3. Did one allele go to fixation in that time period? Which allele? Remember, genetic fixation…

A: In genetics, fixation occurs when a gene pool is composed of only one allele. This means that over…

Q: SAY IT WITH DNA: PROTEIN SYNTHESIS WORKSHEET: Practice Pays Student Handout Having studied the…

A: The DNA message is read in codons that contain three nucleotides. The DNA is transcribed to create…

Q: control mechanisms that lower blood pressure in response to a rapid rise in blood pressure are…

A: Introduction  Blood pressure refers to the force that blood exerts against the walls of the blood…

Q: Summarize the process of fermentation. Describe 2 different fermentation processes

A: Fermentation is a metabolic process that takes place in the absence of oxygen, or under anaerobic…

Q: What kind of qPCR is this? O TaqMan O SYBR O Sanger O End-point

A: Introduction :  qPCR is an improved PCR technique that is used to both quantify and amplify the…

Q: Why are lethal dominant genes much more rare than lethal recessive genes?

A: Lethal genes when inherited by the organism causes the organism to perish. The lethality can be…

Q: In the transduction pathway, protein kinase C (select all that apply): O Is activated by the second…

A: Introduction :  Cell to cell signalling is the communication of information between cells.…

Q: Table 3. Allele counts for a population of 225 individuals: 3. Fill out the following table:…

A: Introduction :-  Alleles are alternative forms of a gene that occupy the same position on paired…

Q: The viral capsid Multiple Choice O engulfs the viral spikes. surrounds the viral matrix protein.…

A: The viruses are made up of genetic material and coat proteins. The outer layer of protein is called…

Q: Briefly compare the composition of DNA versus that of RNA.  Answer the following questions…

A: Introduction  DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are two types of nucleic acids…

Q: 5. Flower color in snapdragons is inherited in an incompletely dominant manner. Assume that RR = red…

A: Incomplete dominance : When allelomorphic pairs are present together in the hybrid, the genes do not…

Q: Single celled organisms that grow in irregular masses and include molds mildews and yeasts? How…

A: There are several types of fungi that include molds and yeasts. They are eukaryotic organisms and…

Q: Which of the choices listed below is the correct order of events for the action of lipid-soluble…

A: The question pertains to the mechanism of action of lipid-soluble hormones. Hormones are chemical…

Q: Compare and contrast the three types of enzyme inhibition.

A: Enzymes are the biocatalyst which increases the rate of the chemical reaction. Inhibition of the…

Q: The Filariform and Cercariae are an infective stage able to penetrate directly through the host…

A: Worms are elongated, soft-bodied invertebrates that are found in a wide range of habitats, including…

Q: What exactly is the significance of the abbreviation DFR?

A: Introduction  Enzymes are proteins that catalyze or speed up chemical reactions in living organisms.…

Q: MET-THR-THR-PRO-CYS-THR-TYR- THR-GLY-ASP-LEU-THR-GLY-MET-ILE- LEU-THR-ILE-ARG-PRO-ILE-LEU-ILE- STOP

A: An amino acid chain, also known as a polypeptide chain, is a linear sequence of amino acid monomers…

Q: Which of the following statements about this monohybrid cross are true? Select all that apply. U 00…

A: Introduction  A monohybrid cross is a genetic cross between two individuals that are heterozygous…

Q: Read the research article added here, read-only study 1, and answer the question: 1. What type of…

A: The variable "target sexual orientation" is an E. independent variable in Study 1. The researchers…

Q: 5. It is Sunday morning and you decide to go out for a run. You notice that you are sweating quite…

A: glands, are organs in the body that produce and secrete substances such as hormones, enzymes, and…

Q: If we were to use the protein sequence you found as an alternate model to study Fe-ADH from T.…

A: The Fe-ADH enzyme from Thermoanaerobacter thioreducens has been studied extensively, as it is an…

Q: What are cnidocytes?  What is their function?

A: Introduction :- Cnidocytes are specialized cells found in cnidarians, which include animals such as…

Q: 12. How are serological tests used to phenotypically identify microbes?

A: Virus and bacterial antigens, as well as antibodies (IgG and IgM), can be found using serological…

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.