Q: Organisms that damage crop plants are the most costly of introduced species. Weeds, pathogenic micro...
A: Agriculture, along with its allied sectors, is without a doubt the most important source of income i...
Q: When plant cells are in a hypotonic medium, they (a) undergo plasmolysis (b) build up turgor pressur...
A: Hypotonic solution: The concentration of solutes in a hypotonic solution is lower as compared to in ...
Q: what happen if the first nucleotide were switched from G to C? How would this affect the insulin mo...
A: Substitution mutation :It is the result of replication error on single site (point mutation). This t...
Q: Jsing the Table Below. Differentiate how human and plants will respond to the given stimuli. Provide...
A: Receptors are proteins molecules found on the surface of the cell that responds to stimuli by bindin...
Q: How are animal hormones typically transported to target cells?
A: Animal hormones are the first messengers that exert their effect on the respective target cells. For...
Q: Closs Exo Sceletun Steletunmotur sujtem Suitem Jienn ustern sujten ustem em Endo muxcular Digestive ...
A: Hi! Thanks for your question. As you have posted multiple questions, we are answering only the first...
Q: Using the Dihybrid Cross, Give the Total Number and Types of Gametes formed. 1. AaBbCCDd 2. M...
A: Genotype is considered a genetic combination of traits in an organism. Mandel's law of inheritance i...
Q: Explain the scientific cause of your disease. (alterations during DNA replication, mutagenic factors...
A: DNA damage Bloom's syndrome Ataxia telangiectasia Fanconi's anaemia. Xeroderma pigmentosa, Cockayne...
Q: Is the Down syndrome inherited through Mendelian patters? If not how it is inherited?
A:
Q: caused
A: At the end of 2019,a novel corona virus designated as SARS-COV-2 emerged in the city of Wuhan, China...
Q: What allows for intervening sequence between a promoter and a regulatory to be looped out so that a ...
A: Bacterial genes are often found in operons and the Each operon contains regulatory DNA sequences, wh...
Q: Can you explain Metacentric, Submetacentric, Acrocentric and Telocentric
A: During cell division, the centromere serves as a connection between two sister chromatids. The siste...
Q: Vaccines and medicines demonstrate the scientific process of inquiry entailed in their development, ...
A: Vaccines are biological agents that stimulate an immune response to a specific antigen obtained from...
Q: To produce transgenic bacteria that make insulin, which of the following steps didscientists have to...
A: Insulin is secreted by beta cells of pancreas. It allows glucose to enter the cells to provide energ...
Q: Suppose a population of organisms is in Hardy–Weinberg equilibrium. In the population, a gene has tw...
A: In Hardy-Weinberg equilibrium, p2+2pq+q2=1 Where p and q is allele frequencies. So, p= 0.72, q...
Q: Draw the structure of an antibody molecule(a typical IgG)and show how this structure enables it to b...
A:
Q: What are the three compartments of cells found in the bone marrow.
A: Given: Blood is a fluid connective tissue.Blood consists of a fluid medium called plasma in which th...
Q: Which of the following are two hallmarks of the adaptive immune system? a. Immediate and Broad b. Sp...
A: The immune system safeguards your child's body against external intruders. These include bacteria, v...
Q: O The lac operon in E.coli encodes enzymes necessary for the breakdown of lactose. For each enzyme (...
A: There are two type of lac operon mutation, constitutive and uninducible lac mutation. LacI- mutants(...
Q: What are the possible phenotypic (P) and genotypic (G) ratios if you cross two parents who are carri...
A: Mendel's laws of inheritance : The Mendel's laws of inheritance include law of dominance, law of seg...
Q: What properties demonstrate that the lac repressor is a protein?Describe the evidence that it indeed...
A: Lac operon is negatively regulated by repressor protein.
Q: 7. In pea plants, inflated pod is governed by a completely dominant gene and a constricted pod by a ...
A: Answer :: A gene may have different variants, expressing different characteristics. These variants a...
Q: Name The diagram below shows the results of crossing a pea plant with smooth seeds and a pea plant w...
A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is ...
Q: Slapping a friend on the back when he has partial airway obstruction is the best way to dislodge the...
A: The partial airway obstruction is when a foreign object choke the windpipe instead of going into the...
Q: If humans evolved from apes, why are there still apes?
A: Primates are organisms with five grasping digits, opposable thumb, and front located eyes on the hea...
Q: What are some cell responses to signals?
A: When a signalling route is activated, it causes a biochemical reaction to alteration in the externa...
Q: What is the name given to the process that can repair DNA damage and generate genetic diversity? Bri...
A: ANSWER: The process that can repair DNA damage and generate genetic diversity are: There are vario...
Q: 5'- CTC GAG CGA AG was obtained as a dry solid. The sample was dissolved in 1000 ul of deionized wat...
A: Concentration of DNA = 50 × dilution factor × absorbance (ug per mL)
Q: What is denaturation and renaturation of DNA?
A: In the nucleus of eukaryotes, DNA is divided into chromosomes. The human genome, for example, is com...
Q: LIN-31 function upstream or downstream of the LET-23 receptor in the vulval development pathway
A: * vulval development is an example of organogenesis. * This organ is that the connection between he...
Q: A bacterial operon is responsible for the production of the biosyntheticenzymes needed to make the h...
A: An operon is a group of genes that are all transcribed by the same promoter. Negative control means ...
Q: how to Make up own genetic problem involving of family with a punnet square!
A: In a family the incidence of cystic fibrosis is quite common. Cystic fibrosis has an autosomal reces...
Q: hragm suddenly (briefly, but forcefully) contracts during a hiccup. what happens to each of the foll...
A: BASICS: - Diaphragm in a state of relaxation exhibits a dome shaped structure. When diaphragm contra...
Q: Use the diagram to answer the question. Atmospheric Oxygen Atmospheric Carbon dioxide What do the la...
A: The balance between carbon dioxide and oxygen is maintained by plants and animals. The plants produc...
Q: Fasting is the traditional practice for some religious groups. During fasting, some individuals or g...
A: Pancreas: The pancreas is a digestive and endocrine system organ found in animals. It is a gland th...
Q: Select the correct pathway in the angiosperm lifecycle. Sporophyte - mitosis - spores - gametophyte ...
A: Angiosperm, also known as flowering plants, is the largest and most diverse group of flowering plant...
Q: 2. What is the difference between aerobic respiration and anaerobic respiration? Why would a cell ch...
A: The cell is life's smallest structural and functional unit. It is a simple machine that houses all o...
Q: A conservation biologist studied four generations of a population of rare Ethiopian jackals. When th...
A: Population size (typically abbreviated N) is the number of individual organisms in a population in p...
Q: Draw and label the dinucleotide AT as follows: A. 5’ and 3’ ends B. Phosphodiester bond C. N-glycosi...
A: Introduction:- Phosphodiester bonds make up the backbones of DNA and RNA. The phosphate is attached ...
Q: What is the specific structure of DNA during both the prophase and metaphase stages of mitosis? 1.Co...
A: There are a total of six stages in mitosis: Interphase Prophase Metaphase Anaphase Telophase Cytoki...
Q: 8. Salmonella has genes that allow it to survive acidic conditions like the stomach acid and the ins...
A: Salmonella enterica is a pathogenic bacteria,it evolves a specialized strategy to survive and mult...
Q: he human MN blood group is determined by alleles (M and N) for a single gene that code for two speci...
A: If the two individuals have MN blood group, then the phenotypic and genotypic ratios of their offspr...
Q: How are genetics and evolution related?
A: Genetics and evolution are related in that they are both sciences. Genetics is the study of how gene...
Q: Albinism is a condition where individuals can't make melanin pigment. The affected gene encodes for ...
A: Albinism is a group of inherited disorders which can lead to no production of melanin pigment due to...
Q: In general, offspring of bam swallows have tail lengths very similar to their parents. However, if t...
A: The complete genetic material’s set that can be found in a living organism is termed as the genotype...
Q: 3. Hershey-Chase (1952) The Definitive Proof Hershey and Chase utilized phages in their research. A ...
A: Hershey and Chase blending experiment gave unequivocal proof that DNA is the genetic material.
Q: Incomplete dominance is characterized by a cross between homozygous dominant and recessive genes tha...
A: B. There is 1/2 chance that the offspring will have blue-colored pupils and wavy hairs. is correct a...
Q: A derived trait ... Group of answer choices A: is something we develop in our lifetime and pass on t...
A: Ancestral traits are those which pass from one generation to another. Analogous traits are those whi...
Q: All of the following are important functions of the innate system EXCEPT that a. Promotes early defe...
A: Immunity :- It is the tendency of our body to fight against foreign microbes . The system of our bod...
Q: Which of the following is not a function of the plasma membrane? (a) transports materials (b) helps ...
A:
Microscopic examination
The analysis of minute organisms, cellular organization of any biological structure, and composition of body fluids with the help of a microscope is known as microscopic examination. The magnification of specimens or samples under study helps in attaining a clearer picture of it.
Gram Staining
Named after Hans Christian Gram, a Danish bacteriologist, Gram stain is one of the most powerful staining techniques within microbiology. This technique was introduced in 1882 to identify pneumonia-causing organisms. The Gram staining technique uses crystal violet or methylene blue as primary staining colors to distinguish gram-positive from gram-negative organisms. Under a microscope, the gram-positive organisms appear purple-brown, retaining the primary color. Gram-negative organisms appear pink or red as they do not acquire the color of the primary stain.
Create a descriptive introduction about compound microscope. Cite your reference/s if possible.
Step by step
Solved in 3 steps with 3 images
- Complete Table 1 below by supplying the characteristics of each objective. Table 1. Numerical characteristics of microscope objectives. LPO НРО OIO Focal length (mm) Working distance (mm) Linear magnification (X) Numerical aperture (N.A..) Features (color of the band, diameter of the opening of the lens, etc.)Using the provided materials and the microscope itself, review the parts of the microscope including the name, where it is located, its function and the appropriate times to use. Record your observations and notes as vou will require this information when writing yourlab reportWrite the steps for setting up a microscope for Kohler illumination. The first step has been written for you. 1 . Focus the microscope on a section.
- Shown below are several micrographs (images from microscopes) that were taken using different microscopy techniques. Write down what method of microscopy was used and why you thought so. Choices for microscopy techniques are: Transmitted Light Microscopy (techniques of brightfield, phase-contrast, darkfield, DIC all fall under this), Fluorescence Microscopy, Scanning Electron Microscopy, and Transmission Electron Microscopy.How does the compound microscope achieve magnification? resolution? Cite your reference/s if possible.What is the viewing field diameter when you use 10X magnification on the dissecting microscope
- Give a particular use/uses of the following types of a microscope: 1. Research microscope 2. Stereomicroscope 3. Student microscope 4. Projection microscopeWhat are the corresponding ring colors of the objective lenses of the microscope? Scanner _________________________ Low Power Objective (LPO) _________________________ High Power Objective (HPO) _________________________ Oil immersion Objective (OIO) _________________________can you help me to identify by labelling the slides
- Help withidentify the parts and functions of a microscope. Provide your answers on the spaces provided below. Fine Focus ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Coarse Focus ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Stage Clip ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Rack Stop…Table 1. Objective Lens Scanner Low Power Objective High Power Objective Oil Immersion Objective Total Magnification Objective magnification Ocular magnification Procedure: 1. Locate and record the numbered X in the ocular and the objectives. These numbers represent the magnifying ability of the microscope lenses 2. To compute the magnification, get the product of the magnifying power of the objectives and the eyepiece. Reflect your results in Table 1.3