Q: In a population, describe the result of inbreeding. Whether inbreeding leads to the change in the…
A: Introduction Inbreeding is the mating of organisms closely related by ancestry. Inbreeding also…
Q: fish die-off occurs in a pond near an agricultural field where fertilizer high in N and P has been…
A: Nitrogen, phosphorus and potassium, or NPK, are the 3 essential supplements in commercial…
Q: PI3K is a cancer activating molecule because of what molecular function? It works to directly…
A: PI3K is normally engaged by being directly activated by the regulatory subunit linked to the active…
Q: Is integrated pest management technique is better than using only one type of pest technique?…
A: IPM is the new method to prevent the pests from destroying our food that is growing anywhere in our…
Q: Which embryonic germ layer lines the outer surface of the embryo
A: An embryo is the early stage of human development in which organs form critical body structures.
Q: First letter U C A U G Second letter UUU UCU Phe UGU UUC Cys UCC UGC UUA UCA UAA STOP UGA STOPA UUG…
A: Mutation is defined as any change in the sequence of a DNA, chromosome structure or the number of…
Q: Flatworm parenchyma cells that are stem cells: O A. pigment cells B. fixed parenchyma cells O C.…
A: Introduction Any phylum of flatworms, also known as platyhelminths. Platyhelminthes are a group of…
Q: 2"
A: Star fish are echinoderms that undergoes sexual reproduction and embryo development take place…
Q: A 21 or 22 base long RNA that binds to certain mRNAs, blocking their translation into protein Group…
A: Ribonucleic acid (abbreviated RNA) is a nucleic acid present in all living cells that has structural…
Q: QUESTION 1 You are studying a mutant strain of e.coli. When you add lactose to the media of this…
A: Lac operon is the segment of DNA which is involved in the breaking down of lactose into glucose in…
Q: Your friend is convinced his calico cat is male. He takes the cat to the vet. Sure enough the cat is…
A: A calico cat is a domestic cat of any breed with a tri-color coat.
Q: Why is the egg of S. stercolaris not usually seen in stool?
A: Strongyloidiasis is a disease caused by the rhabditid nematode Strongyloides stercoralis…
Q: In the presence of lactose and the presence of glucose the lac operon is not expressed Lacl is bound…
A: Introduction:- Lactose metabolism genes are found in the lac operon of E. coli. It is only expressed…
Q: Directions: Arange in correct order the development of human embryo from fertilization until birth.…
A: Introduction Human embryonic development:- It is a complicated process by which the fertilized egg…
Q: ex. Locate any woodland or forest area close to your home. Create a 10 x 10 m quadrat once you've…
A: We have to complete the task with the help of some techniques. Here some searches are required to…
Q: What are all the possible genotypes of a round, yellow pea? Select all that apply. O RRyy V RrYY O…
A: Dihybrid Cross:- A dihybrid cross is a cross between two people with two different genes controlling…
Q: Skeletal muscle contraction requires: O calcium ions O ATP O arrival of a nerve impulse all the…
A: Skeletal muscle is composed of muscle fibres which have smaller units called myofibrils. There are…
Q: Give a major disadvantage of RAPD as a DNA marker. Provide one (1) recommendation on how to address…
A: Introduction RAPDs are random sequence DNA fragments generated by PCR using short synthetic primers…
Q: 15. Which of the following will NOT promote speciation between populations of the same species? a…
A: Ans: Speciation is an evolutionary pathway of creating new distinct species from the ancestral…
Q: bulk filter-feeding (baleen only) (not to scale) Pleist. 1.8 Pliocene 5.3 Late bulk filter- feeding…
A: Phylogenetic tree of the mysticeti.
Q: Sensory organs are important anatomical features that helped lineages of vertebrates to succeed up…
A: Introduction The sensory nervous system is a component of the nervous system that processes sensory…
Q: Identify each of these stages of the cell cycle. Each answer option should be used once. 1 5 3 4 1 […
A: Prophase- chromosome condense and becomes visible. Metaphase- chromosome are lined up at the…
Q: In 5 sentences only, What are restriction enzymes (RE)? Describe how a RE can be used to…
A: Researchers continue to find new medications that aid in the treatment of deadly diseases and enable…
Q: The macula densa consists Select one: a. closely-packed nuclei in the epithelium of the distal…
A: Macula Densa: Salt sensors in the juxtaglomerular apparatus create paracrine chemical signals that…
Q: Remember for T/F questions, either answer TRUE or FALSE, but if the answer is FALSE make sure to…
A: Retention signal which are KDEL and KKXX sequences acts as a signal indicating the sorted out…
Q: The upper limbs are attached to the axial skeleton by the: O rib cage O pelvic girdle O pectoral…
A: All of the bones, cartilage, tendons, and joints in the human body make up the skeletal system. The…
Q: 14. Which of the following trees of life (showing Archaca (A), Bacteria (B), and Eukarya (E)) best…
A: Evolution is a continuous process .
Q: are likely to be more reproductively isolated from one another than 20. a. A and C; B and C b. B and…
A: Shows the relationship between species. Organism closely related are grouped together. A and C are…
Q: Which animals are at the top of the food chain?
A: Food chain : It is the chain which interconnects plants and animals through the energy consumption…
Q: Compare the two mRNA sequences below. AUAUUCGGCAAUCCG AUAUUCCGCAAUCCG This change could be the…
A: Messenger RNA or mRNA is single stranded RNA which acts as template for the synthesis of amino acids…
Q: The digestive tract and the gut microbiome have a mutualistic relationship. What does this mean? O…
A: Mutualism is a type of symbiotic relationship where all species involved benefit from their…
Q: The names of five (5) personal care or cosmetic brands that have nanotech ingredients. b. The…
A: Nanoparticles Nanoparticles are ultrafine molecules of diameters between 1 to 100nm. Being smaller…
Q: 1. How far should you record and observe any fauna encountered outside the quadrat? Why do you think…
A: Quadrat method The quadrat method is a widely adopted sampling method to estimate the number of…
Q: The equation for photosynthesis is 6CO2 + 6H2O + Sunlight --> C6H12O6 + 6O2. Explain the role of…
A: Photosynthesis is a set of chemical reactions performed by plants to convert light energy from sun…
Q: a. On the graph, use horizontal lines to indicate the level of potential energy that each of the…
A:
Q: 18. During cell signaling, tissue X sends a signal to tissue Y, tissue Y responds but then sends the…
A: Cell signaling can be categorized into four types based on the distance that the signal travels to…
Q: Glucose is required for aerobic cellular respiration.. False True
A: Aerobic cellular respiration occur in presence of oxygen in mitochondria. The first step occurs in…
Q: Virology:Describe how to make an attenuated virus vaccine by briefly describing each step(1-4) in…
A: Live and attenuated vaccines are obtained from “wild” viruses or bacteria. By the help of repeated…
Q: Observe the structure shown below: 'N H. HCI H NH2 ОН О
A: Doxycycline is a broad-spectrum tetracycline-class antibiotic used in the treatment of infections…
Q: Label the following parts of a Zea mays (corn): Epidermis Ground tissue Хylem Phloem Bundle sheath…
A: Introduction In a vascular plant, a vascular bundle is a strand of conductive tissue that conducts…
Q: Finger pulse start of pulse upswing to peak (s) Total time (upswinging to baseline, s) 0.090 0.240
A: Introduction:- From the heart to the lungs, oxygen-rich blood is transported by the circulatory…
Q: eueu For each genotype below, select whether it is heterozygous, homozygous dominant, or homozygous…
A: First of all let us check what the terms mean, Heterozygous: It means an organism having two…
Q: Which animals are at the top of the food chain?
A: A food web starts with the primary producer at trophic level 1, followed by herbivores at level 2,…
Q: 1. A long-haired homozygous black dachshund and a true-breeding (another word for homozygous)…
A: Introduction :- An organism is homozygous for a trait if it possesses two copies of the same allele,…
Q: If a person exercises to achieve bigger muscles, what effort must be exerted and what actually…
A: Introduction: The amount of force a muscle can create in a single effort is known as muscular…
Q: 3. Have you heard about cellular memory? 4. Do you think that an organ recipient's personality and…
A: Genetics is the study of the functioning and main codes of variation and heredity. Inheritance is…
Q: To determine: The way in which invasive species contributes to the biodiversity crisis.
A: The biological variety and variability of life on Earth is usually defined to stated as…
Q: Which of the following is the correct path of airflow during inhalation? O nasal cavity, larynx,…
A: Breathing is the most important physiological process through which an organism takes in the…
Q: What are the similarities between feminist ethics and African ethics
A: Ethics is also called moral philosophy. It is described as a discipline that is concerned with what…
Q: 5. Provided with the following data, compute the corresponding CFU/ml of the original culture.…
A: Introduction For CFU count the average no. of colonies chosen is 30-300. Above this range, the…
write a short discussion
Step by step
Solved in 2 steps
- A solution containing two different fluorescent compounds, Ben and Jerry, were analyzed for their individual concentrations in the mixture. Standards of pure Ben and pure Jerry were prepared at a concentration of 500.0 mM and were run in a UV-Vis Spectrophotometer to determine their absorption properties. Absorbance Wavelength Compound Ben 500 mM Compound Jerry 500 mM 400 nm 0.137 0.136 450 nm 0.312 0.113 500 nm 0.154 0.078 550 nm 0.076 0.079 600 nm 0.227 0.148 650 nm 0.230 0.230 700 nm 0.151 0.357 750 nm 0.157 0.246 800 nm 0.154 0.154 A standard curve of the standards was also prepared to help determine the concentration of each component in the solution. The solution produced an absorbance reading of 0.486 at the Amax of Ben, and 0.463 at the Amax of Jerry. STD CURVE BEN Amax Ben Amax Jerry STD CURVE JERRY Amax Ben Amax Jerry CONC (mM) ABS ABS CONC (mM) ABS ABS 100 0.074 0.025 100 0.037 0.074 200 0.148 0.057 200 0.081 0.148 400 0.284 0.103 400 0.164 0.284 800 0.607 0.218 800 0.287…Copy and paste the link below and watch the video on Youtube https://www.youtube.com/watch?v=8RBs0Ghg_48 Answer the following Questions: 1. What are the chemicals and materials used in gel electrophoresis? 2. Draw a schematic diagram of a gel electrophoresis set-up 3. Describe the procedure in doing a gel electrophoresis experiment. Why is there a need for a leveling bubble/leveler? What is the use of the rubber dam? 4. What is the use of ethidium bromide and why must you wear gloves when you handle it? 5. What makes the DNA fragment move towards the positive plate? 6. What is the purpose of glycerol in the sample buffer? 7. What is the use of a DNA ladder? 8. What will happen when you increase the voltage of the set-up? 9. Can gel electrophoresis be used to separate amino acids? If so, how is it done?Fluorescence intensities depends on the molecular structure and its environment. Discuss the factors that can affect the fluorescence intensity and explain how the factors increase or decrease the intensity.
- You may want to use this resource for this problem. If you do, submit the output along with your solution.You have been given a confocal microscope equipped with the following lasers, excitation filters, andemission filters:Laser Emission filter355 nm 410-470 nm405 nm 470-500 nm488 nm 500-550 nm532 nm 570-610 nm561 nm 610-650 nm640 nm 660-700 nm808 nm 720-780 nmYour task is to design an experiment to visualize the following:1. Nuclei2. A fluorescent protein in the cytosol3. A cell membrane marker antibody conjugated with a fluorophore4. Actin filaments5. LysosomesYou may choose from the following fluorophores for each of the five channels:Nuclei Fluorescent protein Membrane marker Actin marker Lysosome trackerDAPI GFP FITC AF488 Phalloidin LysoTracker RedHoechst 33342 YFP WGA-TRITC AF568 Phalloidin LysoTracker DeepRedSYTO Deep Red RFP Cy7 AF594 Phalloidin LysoTracker Blue Part 3.1Choose appropriate fluorophores for each of the subcellular structures to be imaged, taking into…d/e/1FAIpQLSfTle9UfP15_VUqFI-ACEQd1XBykXv5Lr4dEMQbLJ1d6fCupw/viewform Students subjected three samples of five different molecules to gel electrophoresis as shown in Figure 1 A B C DE +2 3 Wells 4 8. Which of the following statements best explains the pattern seen on the * gel with regard to the size and charge of molecules A and B? 1 point molecules A and B are positively charged, and molecule A is smaller than molecule B. molecules A and B are positively charged, and molecule A is larger than molecule B. molecules A and B are negatively charged, and molecule A is smaller than molecule B. molecules A and B are negatively charged, and molecule A is larger than molecule B. Sign outThese are cheek cells at 1000X. If the field of view at scanning power is 5mm, A. what is the field of view on Immersion oil in um? A/ B. How big is one cell in um rounded up to nearest whole number? A um 80 09 um
- A fluorescence recovery after photobleaching (FRAP) was performed at 37 °C. If the experiment were carried out at 10 °C, what effect would you expect on the rate of fluorescence recovery, Why?This lab examines the relationship between the absorbance of light by a solution at 595 nm and the concentration of the Coomassie Blue dye-BSA protein complex in the solution. State whether the following descriptions of the lab experiment are valid or not, and explain why you say Yes or No: a.The experiment would be significantly more accurate if absorbance readings were recorded for a range of wavelengths, not just for 595 nm.b.The experiment has limited accuracy because it does not account for the absorbance of light by the other components (components that are not the dye-protein complex, such as excess dye that is not bound to any protein) of the solution.c.The absorbance reading measures practically all the protein content in the solutionsblackboardcdn.com/5bfc08ba3fldc/14683296?X-Blackboard-Expiration=16245468000008X-Blackboard- 19 / 47 100% 1.4. Functions of the light mlcroscope parts Complete the following table by writing the function(s) of each of the parts indicated. Structure Function Diaphragm / iris Stage opehing Lamp Objective lenses Eye piece Coarse and find adjustment knobs Stage Stage rack prt sc delete home backspace lock enter pause t shift
- Horizontal sequence :VIRL Vertical sequence:MKF Scoring rules: g/o = -3, g/e = -1, match or mismatch - from PAM250 substitution matrix below. NW algorithm. 1. Complete the scoring matrix. Scoring matrix with PAM250 scores: V I R L M K F 2. Set up, initialize and complete the NW matrix. 3. Retrace, align and score alignment(s). Use the arrows and circles for the matrix and path(s). V I R L M K F Align and score all optimal alignments here. PLZ the arrows and circles for the matrix and path(s) AND SHOW ALL possible AlignmentCompare the two (or more) quantum dots emission at850 pbs/cds.. lnGaAs materials - which would be preferable for labeling certain molecules/organelles in biological samples for fluorescence microscopy? What were your considerations for this choice?In this problem, you will design a filter system for a flow cytometer. The four fluorescent dyes are FITC,PE, PE-TR,and PE-Cy5. Their emisison spectra are provided below. Detectors are arranged as shown in thefigure below. The FITC signal is detected from Filter 1, the PE signal from Filter 2, the PE-TR signal fromFilter 3 and the PE-Cy 5 signal from Filter 4. Part 4.1Provide a rationale for the order in which the filters are arranged with respect to the unfiltered signal. Part 4.2You are given 9 candidates from which you have to choose 4 for the filters in the diagram above. Choose4 and justify your selection.# Filter type WavelengthA Long pass 650 nmB Short pass 530 nmC Long pass 490 nmD Band pass 550-590 nmE Long pass 560 nmF Short pass 640 nmG Long pass 620 nmH Band pass 620-640 nmI Short pass 590 nm
