Biology question and answers for August 20, 2023
- Q List nine traits that developed during human evolution. Twospecies that have each trait (you can't use the same species twiceso it must be two new species for each trait) and...
- Q Based on the symptoms and virulence of each of these diseases,indicate for each disease whether there is a stronger selection forcompetition within hosts or stronger selection for movement acrosshosts. Defend...
- Q 1a) what is the relationship between substrateconcentration and reaction rate?b) Describe how the enzyme structure iseffected:i) below the optimaltemperatureii)above the optimaltemperature?  c)Why is enzyme activity reduced at pH values above orbelow...
- Q Why do changes in DNA commonly cause serious effects inhumans, whereas changes in RNA structure usually have little or noeffect?
- Q Why infections caused by eukaryotic parasites are harder totreat than those caused by prokaryotes? Explain and give examples.What is the most effective method to treat infections with Cestodes(tapeworms)?
- Q 1. A unicellular, photosynthetic organism could be: ï¯ a plant ï¯a prokaryote ï¯ a fungus ï¯ a protist Select all correct answers fromthe list above. Briefly explain your reasoning.2. What...
- Q please answer these questions all of them for quick1.  Pick two organisms that have traits that allowthem to be perfectly adapted to their environments. For example,there are bright pink praying mantis...
- Q Imagine you work for an industrial chemical company and you havebeen asked to design a novel cleaning agent against a group ofmicroorganisms. Select a specific organism representative of thegroup you...
- Q How does emigration and immigration effect the gene pool of apopulation?
- Q Explain why range animal nutrition is different from that ofclassical animal nutrition. State and discuss the factors thatinfluence the nutritional status of grazing animals
- Q Discuss the adaptation of reptiles to terrestrial and/or aquaticenvironments. Refer to the evolution and radiation of body plansand physiological adaptations to structure your answer
- Q Discuss the diversity of the Order Urodela. In your answer makereference to morphotypes, life history, neoteny and the distinctionbetween ‘mole salamanders, true salamanders and newts’
- Q Part 1:A TtYy individual is crossed to one that is ttyya. List the types of gametes produced by each parent.b. Form a Punnett square and derive the genotypes of theoffspring.c....
- Q 5. List up to five advantages of MEG over the followingmodalities:a. fMRI (measures changes in blood oxygenation levels related toneural activity)b. EEG.
- Q 13. A structural biologist from a renowned medical researchinstitute has just solved the structure of a protein complex formedbetween two proteins A and B. She wants to find out if...
- Q In your own words and in detail, contrast a hydrogen bond, ionicbond, and covalent bond.
- Q What are the main characteristics of bacterial plasmids? Discussthe role of plasmids in bacterial infections andsurvival.
- Q 1. Describe 3 dark adaptation experiments that are designed toobtain the following:Pure cone dark adaptation curveDescribe the stimulus. Where in the retina is itpresented?Describe the subject. Do they have normal...
- Q A proportion of the individuals in a given population exhibit adeleterious trait that is controlled by a single gene. We know thatthis gene has only two allelic variants segregating and...
- Q how you are able to distinguish between the varioustypes of white blood cells (neutrophils, eosinophils, basophils,lymphocytes, and monocytes).
- Q 1.  Based on your understanding of the innate immunesystem list 3 broad categories (and AT LEAST ONE specific examplein each category) that constitute the first line of defensemechanisms by the...
- Q Regarding mammography: (2 pagelimit)Describe how a mammography machine worksHow does it differ from a conventional X-ray machine andwhy?Why do we use mammography?Describe the potential risks and safety matters
- Q Resistance towards first line antibiotics by MRSA is a bigproblem. Explain what temperate and lytic phages are, how theyinfect enteric bacteria, and how it may be used in a treatment...
- Q 1. Can photo system 1 also absorb light and release electrons?How do the electrons be replaced?2. What happens during non-cyclic electron flow? What productcan be generated?3. Summarize the events of...
- Q Biofilms are important characteristics of some bacteria. Whatare the stages for biofilms formation? Explain the importance ofbiofilms in the survival of such microorganisms in certainenvironments.Why are infections caused by eukaryotic...
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