Biology

How would each of the following types of mutation affect the function of the protein that is expressed from a gene:

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How would each of the following types of mutation affect the function of the protein that is expressed from a gene: a) Nonsense b) Missense EXPERT ANSWER Answer A). Nonsense mutations: This mutation is caused by point mutations. If the codon in mRNA is converted to nonsense codons, it causes the polypeptide chain termination. So …

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5) What is the process of gram staining? Please provide me details on what the primary stain is, mordant, decolorizer, counterstain, etc. Please explain what happens to the bacterial cell during each staining process. Please explain in detail- what a primary stain is, what a mordant does, what a decolorizer does, and what counterstain does. 6) Compare and contrast a gram positive organism vs. gram negative organisms. Please explain why gram positive cells result in a purple color after the gram staining process verses gram negative cells resulting in a pink coloration.

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EXPERT ANSWER 5Answer: Gram’s staining is the test used to differentiate between gram positive and gram negative bacteria. Process of gram’s staining: 1.prepare bacterial smear on the clean glass slide 2. pass the slide through the flame for 2-3 times this process is called heat fixing 3. Apply crystal voilet (Primary stain) on smear for …

5) What is the process of gram staining? Please provide me details on what the primary stain is, mordant, decolorizer, counterstain, etc. Please explain what happens to the bacterial cell during each staining process. Please explain in detail- what a primary stain is, what a mordant does, what a decolorizer does, and what counterstain does. 6) Compare and contrast a gram positive organism vs. gram negative organisms. Please explain why gram positive cells result in a purple color after the gram staining process verses gram negative cells resulting in a pink coloration. Read More »

12. How can A distinguish T from C? 13. Which DNA double helix do you think would be harder to separate into two strands: DNA composed predominantly of AT base pairs, or of GC base pairs? Why? 14. What is a mutation? -In 15. The DNA double helix looks like a twisted ladder. What makes up each rung of the ladder? What holds the rungs together at the sides? -Ea 16. Is there mostly empty space between the atoms in a DNA double helix?! 17. One base pair is not in position to form normal Watson-Crick hydrogen bonds. Can you find it? (Note: Clicking on any base in D. Ends, Antiparallelism reports its letter and sequence number at the bottom of the browser window in the status line, following the word “Group”. Use this feature to obtain the letters and sequence numbers of the abnormal base pair, once you find it.) -Instructions were to not answer this question. 18. How do proteins recognize specific sequences of DNA? -Proteins recognize specific sequences of DNA by Question Set C 19. Which bases are purines? Pyrimidines?

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EXPERT ANSWER 12. Nitrogenous bases are organic bases that are heterocyclic in nature and contain nitrogen. There are two types of nitrogenous bases, purines and pyrimidines. Adenine and Guanine are purines and cytosine, uracil and thymine are pyrimidines. Out of these nitrogenous bases, adenine, guanine, cytosine and thymine are found in the DNA and the …

12. How can A distinguish T from C? 13. Which DNA double helix do you think would be harder to separate into two strands: DNA composed predominantly of AT base pairs, or of GC base pairs? Why? 14. What is a mutation? -In 15. The DNA double helix looks like a twisted ladder. What makes up each rung of the ladder? What holds the rungs together at the sides? -Ea 16. Is there mostly empty space between the atoms in a DNA double helix?! 17. One base pair is not in position to form normal Watson-Crick hydrogen bonds. Can you find it? (Note: Clicking on any base in D. Ends, Antiparallelism reports its letter and sequence number at the bottom of the browser window in the status line, following the word “Group”. Use this feature to obtain the letters and sequence numbers of the abnormal base pair, once you find it.) -Instructions were to not answer this question. 18. How do proteins recognize specific sequences of DNA? -Proteins recognize specific sequences of DNA by Question Set C 19. Which bases are purines? Pyrimidines? Read More »

1. The diffusion rate of A in B was studied at 500°C and 850°C. It was reported that, for the same diffusion time, the depths of penetration xi and x2 in the two experiments were in the ratio of 1: 4. Show that the activation energy of A in B is 57 kJ/mol. 2. An amount Q of a dopant is deposited on the surface of a silicon substrate. During a subsequent anneal without the dopant in the atmosphere the concentration c of the donant as a function of depth x and time t is given by c= (0 VDI exp(-x2/4D Show that this is solution of Fick’s second law, where D is independent of concentration. 3. The activation barrier for iump is 100 kJ/mol. Calculate the rate at which a kacancy iumps in copper at 20°C.

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Draw the precipitin arcs form in the immuno-double-diffusion set up below being known that antigen 1 and 2 are totally different, antibody 1 and 2 bind specifically to antigen 1 and 2, respectively. Clearly label the arc with the correspondent pair of antibody-antigen.

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Draw the precipitin arcs form in the immuno-double-diffusion set up below being known that antigen 1 and 2 are totally different, antibody 1 and 2 bind specifically to antigen 1 and 2, respectively. Clearly label the arc with the correspondent pair of antibody-antigen. EXPERT ANSWER Ans: For explaining the picture, let me give a quick …

Draw the precipitin arcs form in the immuno-double-diffusion set up below being known that antigen 1 and 2 are totally different, antibody 1 and 2 bind specifically to antigen 1 and 2, respectively. Clearly label the arc with the correspondent pair of antibody-antigen. Read More »

A diploid species has 3 pairs of chromosomes in the somatic cells. In males, the first pair is large submetacentric; the second is medium acrocentric, and the third is small telocentric. In females, the first two pairs are like those of the males while the third is large metacentric with satellite. Illustrate the karyograms of the following: 1. A triploid cell in females 2. A tetrasomic cell in males 3. A tetraploid cell in females

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A diploid species has 3 pairs of chromosomes in the somatic cells. In males, the first pair is large submetacentric; the second is medium acrocentric, and the third is small telocentric. In females, the first two pairs are like those of the males while the third is large metacentric with satellite. Illustrate the karyograms of the following:1. …

A diploid species has 3 pairs of chromosomes in the somatic cells. In males, the first pair is large submetacentric; the second is medium acrocentric, and the third is small telocentric. In females, the first two pairs are like those of the males while the third is large metacentric with satellite. Illustrate the karyograms of the following: 1. A triploid cell in females 2. A tetrasomic cell in males 3. A tetraploid cell in females Read More »

Relate the shape of frog’s red blood cells and frog’s egg cell with their respective function.

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Relate the shape of frog’s red blood cells and frog’s egg cell with their respective function. EXPERT ANSWER Ans= Generally the shpe of RBC of frog is elliptical in shape and contain nucleus so also called nuclted RBC. Frog is amphibians organism can respiration through skin and lungs so metabolism is generally slow. Function of …

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In Essay format: What was the most important scientific breakthrough of the past 300 years? Explain the science behind it and how we still feel its effects today. Note – Minimum word requirement is 200 words Requirements • Must be typed handwritten answers will be rejected and result in an immediate decline of your application • Between 200 – 500 words • Must be free of plagiarism • Proper grammar and no spelling mistakes • Failing to meet our quality standards will result in rejected applications At least one example of correct use of all of the following • Commas • Colons • Semicolons • Exclamations • Quote Marks • Apostrophes • Parentheses • Dashes • Hyphens Citation in APA format (at least one resource)

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EXPERT ANSWER The five greatest scientific discoveries and inventions ever 1 – DNA. 2 – The Internet. 3 – Antibiotics. 4 – Medical imaging. … 5 – Artificial Intelligence For history up till now, I’m going with germ theory. there is so much involving health care, sanitation, agriculture, vaccines, and antibiotics that arose from our …

In Essay format: What was the most important scientific breakthrough of the past 300 years? Explain the science behind it and how we still feel its effects today. Note – Minimum word requirement is 200 words Requirements • Must be typed handwritten answers will be rejected and result in an immediate decline of your application • Between 200 – 500 words • Must be free of plagiarism • Proper grammar and no spelling mistakes • Failing to meet our quality standards will result in rejected applications At least one example of correct use of all of the following • Commas • Colons • Semicolons • Exclamations • Quote Marks • Apostrophes • Parentheses • Dashes • Hyphens Citation in APA format (at least one resource) Read More »