Biology question and answers for July 19, 2023
- Q Global regulators are proteins that can repress oractivate the expression of large numbers of genes inan organism. A recent report describes structural studieson the anti-repressor AbbA from thebacterium Bacillussubtilis [Tucker...
- Q what are some strengths,weaknesses, and tecniques for electronmicroscopy?
- Q whymight a cell in your body not change, even in the presence of ahormone signal ?
- Q Which of the following is the source of new, novel alleles in apopulation?A) mutationB) crossing over in meiosisC) gene flowD) mitosisWhat does it mean for a population to be in...
- Q 6. (4pts) Indicate if you “AGREE†or DISAGREE†with thefollowing statements. Explain your reasoning.A) (1pt) ATP hydrolysis is necessary for actin treadmilling. (4sentence max)B) (1pt) Late endosomes are converted to...
- Q You are asked to trace the effects of such a mutationfrom the level of nucleotide sequence all the way to cellfunction.Part 1: Name and describe at least 2 varieties of...
- Q Describe how the fats are broken down from the fatglobules to chylomicrons in the small intestine. Be sure to namethem at every step.
- Q 5. How could you take a protein with a known sequence of aminoacids and use it to make an artificial gene?
- Q What is the nature of the oogonium and the secondaryoocyte? Which process results in the formation of the secondaryoocyte?      A) A diploid oogonium forms ahaploid oocyte by the process...
- Q What is the reductionism and systems biology and how these 2approaches can be combined to create effective personalizedmedicine in the future?
- Q Compare and contrast the structure of teosinte with that ofcorn. Why did people believe that teosinte could not be theancestor to corn? Why were its kernels probably not used to...
- Q Discuss the effects of fire on soil properties
- Q Put these steps in neuromuscular junction synaptic transmissionand excitation-contraction coupling in chronological order. (Typethe letters in the appropriate order with no spaces betweenthem).A. Ryanodine receptors openB. Voltage-gated Na+ channels open...
- Q At a particular locus, the homozygous genotype is lethal. Weobserve a cross between two heterozygous parents. Which of thefollowing will not be true for their offspring: a) All offspringwill look...
- Q what is the distinguish sexual and asexual reproduction methodof fungi with examples ??
- Q 1.What is the role of histone acetylation in eukaryoticcells?2.What is the role of amino-acyl-tRNA-synthetases?
- Q Discuss the role of plant tissue culture methods for generationof (a) somatic hybrid plants, and (b) mutant plants with enhancedresistance to bacterial diseases. Please explain as detail aspossible. Thank you.
- Q Describe and discuss the experiments that confirmed that FT isthe mobile flowering compound known as ‘florigen’. Please explainas detail as possible. Thank you
- Q he lac operon in E. coli regulates the co-expression of threegenes needed for the degradation of lactose (but absence ofglucose) in the growth medium. These genes are not expressed whenthe...
- Q Describe the synthesis of an Okazaki fragment on the laggingstrand in a replication fork. Include names of enzymes and theproper 5’ and 3’ ends of DNA strands.
- Q Explain the role of ubiquitination in the regulation of cellularprotein levels.
- Q From the And The Band Played On: What is your perception of howthe CDC disseminated the findings of the scientific study thatdemonstrated sexual contact as a mode of disease transmission?
- Q Compare/contrast photosynthesis and cellular respiration. Writein essay format and give thorough explanations.
- Q The anticodon sequence of the tRNA carrying lysine into theribosome is 3’-UUC-5’. Write down the corresponding threenucleotide long DNA double strand. Include 5’ and 3’ end of eachstrand and indicate...
- Q What is the role of amino-acyl-tRNA-synthetases?
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