Biology question and answers for July 09, 2023
- Q First, describe in general terms a cell signaling response thatends in A) a cytoplasmic response and B) a nuclear response. Usethe following terms in this description: response, primary signalmolecule, transduction...
- Q You would like to isolate a mutant fern capable ofgrowing in the presence of cadmium, which is toxic to wild typeferns. What specific part of a fern plant would you...
- Q Which compliment pathway involves binding of a soluble patternrecognition receptor to mannose on the surface of the pathogen?A) Alternative PathwayB) Classic PathwayC) Mannose-binding Lectin Pathway
- Q Iron is an important item for the growth of microorganisms in apathogenic state in the human body. Describe two ways in whichbacteria might attempt to obtain iron from human cells...
- Q What are Koch's postulates and what are they used for? Give anexample of a modern exception to each postulate. Â
- Q 2. A cell has a diploid number of chromosomes = 34 (2n = 34).(a) How many chromosomes will the daughter cells have aftermitosis? (b) How many chromosomes will the daughter...
- Q 5)A mutation in E. coli designated polA1 was discovered that isdeficient in DNA polyermase I activity Because of this, researchershypothesized that DNA duplication may not be successful. Is theirhypothesis true?...
- Q Please describe and discuss similarities and differences betweenthe ways plants and animals communicate with other organisms.
- Q 5. Describe and illustrate all of the following life cycles:mosses, ferns, gymnosperms, and angiosperms.
- Q Describe if the following homozygous mutant plants will undergothe triple response in the presence and absence of ethylene.Briefly explain your answer.A. A recessive mutation (loss-of-function) in the EIN3gene. This recessive...
- Q 2. Compare and contrast sporogenesis and gametogenesis in antherand ovary (of angiosperms). You must use, but are not limited to,the following terms: anther, eggs, embryo sac, generative cell,microsporocytes, megasporocyte, microspores,...
- Q 6. Which of the following would you expect to result from ablock of electron transfer at complex II. Check all correct answersand explain.a. Reduction in oxidative phosphorylationb. No change in...
- Q A. Describe three important differences in the transcription ofmRNA's between bacterial and eukaryotic cells.B. In the synthesis of cDNA libraries for eukaryotic genes,reverse transcriptase can be used with a primer...
- Q 9. Which of the following statements about the building blocksof polymers is true? a. When looking at the complete structure of anucleotide you can always tell whether it is considered...
- Q Podcharacteristics are effected by a number if genes. Pod color (greendominant to yellow), pod surface (rough is recessive to smooth),and pod width (wide is dominant to narrow). Pod color and...
- Q Cystic fibrosis is caused by a mutation in a single gene.Homozygotes for this mutant recessive allele (ff) have cysticfibrosis. Within a population, 2% of people have cystic fibrosis.Assuming Hardy-Weinberg equilibrium,...
- Q Two out of every three known animal species are arthropods.Describe the general body plan of an arthropod, give an example ofan organism belonging to each of the three major groups(Cheliceriformes,...
- Q what was the problem and disease discussed in thisstory. How the worm gave the south a bad news
- Q In same cases of ADD (attention deficit disorder) the impulsive,erratic behavior can be normalized with drugs that stimulate thecentral nervous system. Explain this finding in terms ofneurotransmitter activity in the...
- Q 10. Explain how eukaryotic cells are thought to have evolvedfrom prokaryotic cells. You must use these words in your essay, butare not limited to them: endosymbiotic, enfolding, phagocytosis,mitochondrion, chloroplasts, eukaryotic,...
- Q What will the expression pattern be for the following lac operonpartial diploid?I- Oc Z+ Y- / I+ O+ Z- Y+A) both genes inducibleB) lacZ constitutive, lacY inducibleC) lacZ inducible, lacY...
- Q All Multiple Choice Please I need all 3. No need to go inDepthDuring interphase DNA is in the form of ______ and is______.Chromatin; unavailable for gene expression.Highly condensed chromosomes; calledheterochromatin.Chromatin;...
- Q 1. Describe the broad evolution of plants in the plant kingdom(in terms of phylogeny, reproduction, alternation of generations,leaf modifications, and vascularity)
- Q All the following represent characteristics of the adaptiveimmune system EXCEPT:all the above is true, no exceptionssecondary response characterized by rapid destruction of thepathogenrecognition by pattern recognition receptorsdevelopment of memory responserecognition...
- Q What is the mechanism by which glucose affects the induction ofß-galactosidase by lactose?
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