Q: The fact that some eukaryotic rRNAs are self-splicing indicates that A RNA structures are highly…
A: In eukaryotes, rRNA have a sigma factor which makes the self splicable and hence the highly variable…
Q: Describe the steps of transcription in eukaryotes
A: Eukaryotic transcription is carried out in the nucleus of the cell by one of three RNA polymerases,…
Q: How might diet soda lead to an individual feeling hungry?
A: Introduction A soft drink is a drink made up of water (typically carbonated), a sweetener, and…
Q: Question 47 The proofreading of DNA is essential for faithful replication. A) True B) False
A: Proof reading of DNA is essential for maintaining a homogenous DNA across multiple cycles of…
Q: Can two normal individuals of the same species with sexual reproduction have identical genomes and…
A: The karyotype of an organism depicts the arrangements of its chromosomes. It is used to demonstrate…
Q: Division of human egg is a) Holoblastic and equal b) Holoblastic and unequal c) Isoblastic d)…
A: Introduction - One of the largest cells in the human body is the human egg, or ovum. It is, however,…
Q: What is the genetics/chromosome number of Podocarpus costalis? What is the phenology and…
A: The genus Podocarpus sensu latissimo (s.l.) was initially subdivided into eight sections. these…
Q: Match the following Prompts An AT-rich region found in eukaryotic promoters is called the box. The…
A: 1. An AT rich region found in the eukaryotic promoters is called the "TATA box". The consensus…
Q: 9. What slide preparation technique should you use for the following research goals? Briefly justify…
A: Answer :- a) Maceration technique In maceration the complex substance is broken down into simple…
Q: Give two assumptions for the Mendelian Inheritance for Segregation and Independent Assortment…
A: A central assumption of Mendel laws of inheritance is that genes originating from maternal and…
Q: How can a mutation be beneficial?
A: Mutations are defined as any sudden inheritable change in the DNA or genetic material of an…
Q: Which of the evolutionary processes discussed in the material presented can introduce genetic…
A: Natural selection: it states that only those organisms who are fit according to the environmental…
Q: What are the immunological implications of 'bare lymphocyte syndrome' /MHC deficiency?
A: Bare lymphocyte syndrome (BLS) is relatively a rare condition. In patients with this syndrome,…
Q: Are plants male female or both? EXPLAIN Please answer asap and your content should not be palgarised
A: The term "plant" refers to a diverse group of living organisms that all belong to the Plantae…
Q: An advantage of gas exchange in water, compared with gas exchange in air is that water usually…
A: Gas change is the process by means of which oxygen and carbon dioxide flow among the bloodstream and…
Q: A strictly fermentative bacterium produces ATP A. by glycolysis only. B. by photosynthesis only. OC.…
A: Introduction The process of respiration can be aerobic or anaerobic. The process of anaerobic…
Q: Which of the stated relationships is correct? A. the heart is inferior to the clavicle B. the…
A: A large part of beginning of study of anatomy and physiology is the learning of specialised terms…
Q: true or false: nondisjunction during meiosis is the cause of down syndrome
A: Down syndrome is caused by failure of chromosomes during meiosis. cell division which results in the…
Q: An egg parent with type A blood is claiming that a person with type AB blood is the sperm parent of…
A: Human blood type is an example of a trait that is controlled by multiple alleles. These alleles are…
Q: Select the correct answer. Marcus is admitted to the hospital for a bone marrow stem cell transplant…
A: The cell division is the production of new daughter cells from the old mother cells. Usually in…
Q: Match the description on the left side to the correct term from the choices on the right side.…
A: The living world comprises of the plants, the animals and the microorganisms which we cannot see…
Q: b) You are a contestant on the game show "Who wants to be a millionaire?". You must answer one final…
A: The part of nervous system that controls bodily functions which are not controlled voluntarily such…
Q: Do phylogenetically proximal species have cells with proximal chromosome counts?
A: Introduction - The idea of phylogenetic species (PSC) The idea of a species as an irreducible group…
Q: What is the importance of mitosis for the embryonic development?
A: The "cell cycle", also known as "cell division", is a set of processes that occur in a cell leading…
Q: Choose the letter that DOES NOT BELONG ON THE LIST. A. biodiesel B. crude oil C. coal D. natural…
A: The source of energy refers to fuels available on the earth. There are deposits of different fuels…
Q: quality assurance
A:
Q: Question 52 All of the following describe the general mechanism of DNA synthesis EXCEPT: A synthesis…
A: DNA replication is the important step to protein synthesis. At the nucleoplasm of cell DNA…
Q: Describe the steps of transcription in bacteria
A: Introduction - In the nucleus, transcription occurs. To make an RNA (mRNA) molecule, it uses DNA as…
Q: Which factor is not required for natural selection to occur?
A: This question is based on evolution and natural selection.
Q: The number of Microorganism A was exposed to a constant temperature of 117 C surviving spores of the…
A: D value is decimal reduction time and is described as time needed at a particular temperature for…
Q: What two items are needed to open a cell and release the DNA and then open the strands?
A: DNA is the basic unit of inheritance. There are many cytological and molecular biology techniques to…
Q: f you lost your ability to walk, could you access all of your house? What would need to change?…
A: Whenever one loses their ability to walk, they become wheelchair bound. Hence, their house, car…
Q: the questions about
A: Genotypes of parents: - XbXb:- mother:- Gametes:- Xb, Xb XBY:- father, Gametes:- XB, Y. F1:-…
Q: Which of the following is/are the contents of the ventral cavity? A. heart and lungs B. brain and…
A: Introduction - The anterior (front) part of the human body has a cavity called the ventral body…
Q: A.Binomial Theorem : Marco, heterozygous for able to his roll (Tt), marries Mary v heterozygous for…
A: Homozygous or heterozygous dominant traits are expressed where as recessive traits are always…
Q: A gobi fish creates a burrow at the bottom of the ocean floor. A species of shrimp soon moves into…
A: This relationship, between Gobi fish and shrimp, is called mutualism, where both the individual are…
Q: Question 29 Expression of genes independently of regulation is termed: A constitutive expression. (B…
A: Ans 29 - the correct answer of the above question is B) AUTOREGULATION. Expression of genes…
Q: explain also.
A: PABP (Poly A binding protein) is a RNA binding protein which triggers the binding of eukaryotic…
Q: Referring to Figure 17-32, draw an inviable product fromthe same meiosis
A: Introduction: Pseudo-linkage is said to occur when linkage is observed between two loci that were…
Q: true or false: a nucleotide’s 5 end provides the energy to synthesize a new strand of DNA.
A: Replication is one of the essential properties of genetic material because the progeny cells should…
Q: Question 1: You suspect that a patient has sepsis. A. What type of specimen would you collect to…
A: *NOTE: Kindly repost for other question Dear Student as per the guidelines we are supposed to answer…
Q: What type of tissue is this?
A: Connective tissue, epithelial tissue, muscular tissue, and nerve tissue are the four main forms of…
Q: how can your knowledge of the different locations and drainage of the Lymphatics of the head and…
A: Answer
Q: true or false: Identical twins are a result of totipotent cells splitting apart after one egg is…
A: Humans are sexually reproducing organisms in which the fertilization and embryonic development…
Q: Which of the following is the inner most layer of human eye? a) Retina b) Choroid c) Sclera d)…
A: Introduction - Our visual organ is the eye. Because of its intricate construction, an image can flow…
Q: Explain rna splicing in eukaryotes
A: The "translation" is the process through which mRNA codes for a certain protein. The ribosome…
Q: . How would you “re-create” hexaploid bread wheat fromTriticum tauschii and Emmer?
A: Durum is a form of wheat and is found to be tetraploid in nature. Bread is also a form of wheat and…
Q: Compare the cells in the two photomicrographs below in terms of their shape and structure(s). А B
A: *pictomicrographs shows the photograph of objects under a microscope. * objects like metal and…
Q: What are the immunological implications of 'bare lymphocyte syndrome' /MHC deficiency?
A: Introduction - Mutations in some genes of the major histocompatibility complex or genes involved in…
Q: The two figures on the left are the plant leaf cell viewed under the high power objective (HPO).…
A:
Step by step
Solved in 2 steps
- Design a serial dilution procedure to achieve a 56-colony count, from a sample with 8.75x105 CFU/mL bacterial concentration.Design a serial dilution procedure to achieve a 56-colony count, from a sample with 8.75x105 CFU/mL bacterial concentration. show solutionBased on the following image, which concentration of antibiotic would be considered the minimum bactericidal concentration (MBC)? a. 8 ug/mlb. 16 ug/mlc. 25 ug/ml
- Pretend the results below were obtained for water from your well. The 10 mL tubes are Full Strength, or 9.9 mL of the sample plus 0.1 mL of 10x broth (here a fluorescent Brilliant Green Broth). The 1 mL tubes are 1 mL sample plus 9 mL of normal broth (so a ten-fold dilution). The 0.1 mL are that much sample with 9.9 mL of the broth (so a hundred-fold dilution). Dark green indicates coliform presence. Use the table and the figure and give me the MPN. To do so, count the number of positive tubes at each dilution. Then match the counts to the set of values that most closely fits. Yes, you need to consider the set of values for None, 1 and 0.1 taken together. For example, 5,2,1. What is the MPN estimate for this well water sample? If safe drinking water is <5 cells/100 mL would you drink this well water?A laboratory technician performed a series of 10 fold serial dilutions shown below. he plated 0.1 mL from each dilution tube onto NA and got the follow numbers per plate dilution 1:10 1:10 1:100 1:1000 1:10000 1:100000 colony count >1000 >1000 808 303 38 3 calculate the concentration of bacteria in the undiluted stock (in CFU/mL)The number of bacteria in saliva samples was determined by collecting the saliva, making serial dilutions, and inoculating nutrient agar by the pour plate method. The plates were inoculated aerobically for 48 hours at 37°C. What can you conclude from this data? Why? Mouthwash CFU per ml in salvia Before Use After Use Listerine 2.22 x 107 1.22x107 Schmidts Mouthwash 2.42 x 107 3.22x105 Biotene Mouthwash 3.21 x 107 2.12 x106
- You are testing unpasteurized milk for the presence of bacterial contamination. Starting from the undiluted milk, you do serial dilutions, and plate 0.5 ml of 4th dilution on agar. If you counted 78 CFUs from the 4th plate, how many bacteria/ml do you expect? (show solution) Do you think standard plate counts are very accurate? Why or why not?A sample is diluted by a factor of 10 five times. The 10^-3 dilution has 272 colonies on it. Assuming you plated the same volume on each plate, how many colonies would you expect to find on the 10^-4 plate? Include units and use OCD formula.You are testing a river water sample. Your "original" plate shows 100 coliform colonies. Assuming you did the serial dilution correctly, how many coliform colonies would you expect to see on your 1:10 plate? Your 1:100 plate? Explain.
- Using saline tubes containing 9 ml of saline (for dilutions), draw a diagram that would yield between 30 and 300 colonies from an original broth culture that contains 5 * 10^8 cells/ml. Indicate volumes used and dilutions made for each tube and plate.What would be the expected out come of a Nitrate reduction test If the bacteria is a pathogenic intestinal bacteria?The students of a Microbiology class were tasked to transfer or subculture a pure culture of Escherichia coli bacterium in five 7 mL nutrient broth and five petri dishes of nutrient agar with 20 mL capacity each. Based on the instruction bottles for nutrient broth and nutrient agar, preparation of the culture media is as follows. Nutrient broth: 8 g/liter Nutrient agar: 28 g/liter Answer the following: a. What is the weight in grams of nutrient broth? b. What is the weight in grams of nutrient agar? c. What is the distilled water in mL for nutrient broth? d. What is the distilled water in mL for nutrient agar?