Biology question and answers for August 19, 2023
- Q [15 marks]discuss the functionof haemoglobin. In your answer include the roles of:2,3-BPG (2,3- bisphosphoglycerate)carbon dioxideprotons
- Q What do you expect will be the relationship between diet anddental morphology in primates?What do you expect will be the relationship between diet andbrain size in primates?What do you expect...
- Q Briefly discuss three ways in which the biosynthesisof cholesterol can be regulated.(10 marks – 300 words)
- Q a. What is the theory of evolution (with example)b. How evolutionary process be measured in species that arestill in existencec. What are forces that can cause evolution (Explain how eachworks...
- Q Define microbial nutritional types with respect to carbon andenergy sources. Define and give examples of the following:photoautotroph, chemoautotroph, photoheterotroph, chemoheterotroph,saprobe, parasite.
- Q 1.Which organ system provides support for the body, storesminerals, and produces red blood cells?EndocrineMuscleCardiovascularSkeletal2.Which of the following is the term for the tissue that functionsto support, bind, or attach other...
- Q In your own words, describe three mechanisms of transcriptionalregulation, as discussed in this course, that are involved incontrolling the rate of expression of hydrolytic enzymes associatedwith lysosomes. For each mechanism...
- Q A diploid organism produces four gametes from one parent cellthrough the process of meiosis. Two gametes are found to have 4chromosomes, one gamete is found to have 3 chromosomes and...
- Q In your own words, describe three mechanisms of transcriptionalregulation, that are involved in controlling the rate of expressionof hydrolytic enzymes associated with lysosomes. For each mechanismdescribed, include whether the rate...
- Q Cyst formation causes a catastrophic loss of function inpolycystic kidney disease.  Genetic research has linkedthis disease to defects in genes that code for primary ciliumproteins.  Describe in general terms how malfunctioningprimary cilia...
- Q What are the stages of the cell cycle? What is happening in eachone?Interphase + Mitosis + Cytokinesis = cell cycle • Interphase:subdivided into G1, S, and G2 phases. What happens...
- Q The karyotype of an organism is described by 2n=80.Assume a cell of this organism undergoes a complete normal cellcycle including mitosis.A)Â Â Determine the haploid numberduring G2 of the cell cycle....
- Q What type of bond would you expect to findassociated with the primary structure of the enzymephosphofructokinase (PFK)? In your own words, describe the reactioninvolved in the formation of this bond...
- Q Daryl is a 32?year?old man who presents with a 6?month historyof shortness of breath even during activities that require onlyminor exertion. He has noticed increasing limitation in hisexercise capacity and...
- Q 82) When TGFbeta binds to which partner in its receptor complexfirst?- RI- RII- RIII- RIV87) Binding of cytokine to its extracellular receptor engageswhich of the following signaling pathways?- JAK/STAT- Ras/MAP...
- Q 1. Using the equation for the Hardy-Weinberg Equilibrium,calculate the following for p=0.7 and q=0.3 and enter in the ratiosfor the following values.a. homozygous dominantsb. homozygous recessives|c. heterozygotesd. dominant phenotype2.Blank 1:...
- Q You are examining two traits of a plant called Trait A and TraitB. Each trait is associated with a different gene on a differentchromosome. Trait A shows: the same phenotype...
- Q Fill in the blank- During eukaryotic transcription, the assemblyof the general transcription factors begins with the binding of thefactor________in a complex with the general transcriptionfactor_________to DNA, causing a marked local...
- Q Discuss the structure and function of epithelial tissueincluding their membrane proteins and explain why this tissue is soimportant to the whole organism.
- Q _________ retain more primitive characteristics than otherprimates, such as partially enclosed orbits.a) strepsirhinesb) haplorhinesc) platyrrhinesd) catarrhinesWhich burial environments would best promote fossilization?a) burial by sediments or volcanic ash soon after...
- Q Explain why actin filaments add monomers at the plus end andlose monomers at the minus end AND what function this plays inlocomotion.
- Q Identify the effect(s) of specific population-genetic forces ongenetic variation within and between populations over time. In eachof the table cells, choose one of the options in the drop-down menuthat appears.Genetic...
- Q List and explain the methods used to identify medicallyimportant viruses.
- Q Discuss the medical need for viral cultivation and give examplesof two in vivo and one in vitro method. Define the term pocks andplaques.
- Q Describe the cellular mechanism of formation of transportvesicles.
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