Biology and Genetics

1) Describe lake or pond stratification and how it changes the vertical profile

1) Describe lake or pond stratification and how it changes the vertical profile of physical, chemical, and biological characteristics of lake or pond ecosystems. What are the name…

1) Describe the forces that drive and stabilize proteirn folding. Start your des

1) Describe the forces that drive and stabilize proteirn folding. Start your description with the initial exposure of the polypeptide from the ribosome to its new water-based envi…

1) Describe the genetic code in your own words, and the three coding systems in

1) Describe the genetic code in your own words, and the three coding systems in which DNA affects phenotype.Describe each process separetly . 2) Describe, in your own words, evolu…

1) Describe the physical and chemical properties of the monomer and polymer of m

1) Describe the physical and chemical properties of the monomer and polymer of microtubules 2) Explain how microtubules assemble and disassemble. 3) Explain what molecules in a li…

1) Describe the process of chemical synaptic transmission, starting with depolar

1) Describe the process of chemical synaptic transmission, starting with depolarization of the presynaptic terminal and ending with neurotransmitter binding to the postsynaptic ne…

1) Describe what happens to the number of chromosomes during the two divisions o

1) Describe what happens to the number of chromosomes during the two divisions of meiosis. a)The number of chromosomes is halved in the first division of meiosis. In the second di…

1) Determinen whether the characteristics describe cilia only, flagella only or

1) Determinen whether the characteristics describe cilia only, flagella only or both cilia and flagella -Powered by ATP -sweeping moting -can be used for locomotion -one or two pe…

1) Diagnosis of an infectious disease is facilitated by what? A. Antibiotic chem

1) Diagnosis of an infectious disease is facilitated by what? A. Antibiotic chemotherapy B. Polymerase chain reaction C. Presentation of fever D. Knowledge of patient history E. P…

1) Difficulties with managing human health from low-dose environmental exposures

1) Difficulties with managing human health from low-dose environmental exposures may include which of the following? a) Using animal data to predict adverse effects in humans b) E…

1) Dinitrophenol (DNP) is a metabolic poison that forms proton pores (holes larg

1) Dinitrophenol (DNP) is a metabolic poison that forms proton pores (holes large enough for H+ to pass) to be formed in the inner mitochondrial membrane allowing H+ to diffuse ac…

1) Discuss biocentrism. Explain its idea. What kinds of observation have led to

1) Discuss biocentrism. Explain its idea. What kinds of observation have led to the development of this idea? How does this school of thought find support from quantum physics? Wh…

1) Discuss how hormone levels are regulated in the blood. what mechanism control

1) Discuss how hormone levels are regulated in the blood. what mechanism controls hormonal release? can the method of hormone transport have an affect on blood hormone levels? Exp…

1) Discuss some of the main consequences of improper solid waste disposal (two p

1) Discuss some of the main consequences of improper solid waste disposal (two paragraphs). 2) What are some methods for reducing the solid waste stream? 3) Define and discuss the…

1) Discuss the difference between the role of the cuticle in the nematode and th

1) Discuss the difference between the role of the cuticle in the nematode and the earthworm. 2) What is the advantage of segmentation? 3) Adaptive radiation has resulted in high m…

1) Discuss the guidelines for dietary intake during lactation. What supplements

1)    Discuss the guidelines for dietary intake during lactation. What supplements would you recommend mom be taking during lactation and why? List contraindicated nutrients durin…

1) Distinguishing the pitch of sounds is possible because: A) different frequenc

1) Distinguishing the pitch of sounds is possible because: A) different frequencies of sounds stimulate different regions of the basilar membrane in the cochlear duct. B) differen…

1) Distinguishing the pitch of sounds is possible because: A) different frequenc

1) Distinguishing the pitch of sounds is possible because: A) different frequencies of sounds stimulate different regions of the basilar membrane in the cochlear duct. B) differen…

1) Do you expect most traits in most populations to be under directional, stabil

1) Do you expect most traits in most populations to be under directional, stabilizing or disruptive selection? Explain your answer. 2) Which of the following types of conditions w…

1) Do you think large cells and small cells carry out diffusion and osmosis at t

1) Do you think large cells and small cells carry out diffusion and osmosis at the same rate?  Why or why not? 2) In a solution of 10% sugar and 90% water, I have placed a simulat…

1) Do you think that there will be another extensive glaciation in the next two

1) Do you think that there will be another extensive glaciation in the next two million years? (Source) 2) Do you think there will be another extensive glaciation in the next ten …

1) Dogs with short legs have a form of achondroplasia. A) (2 points) From the pe

1) Dogs with short legs have a form of achondroplasia. A) (2 points) From the perspective of the molecular basis. Give one similarity and one difference when comparing this to hum…

1) Download a set of wind data from the Department of Energy, National Renewable

1) Download a set of wind data from the Department of Energy, National Renewable Energy Laboratory. Go to the website at: http://www.nrel.gov/grid/western-wind-data.html: Follow t…

1) Draw the structures of the following fatty acids: A. 12:0 B. 18:3(4812,15) Wh

1) Draw the structures of the following fatty acids: A. 12:0 B. 18:3(4812,15) Which of these fatty acids do you think will have the lowest Tm value? What structural feature is res…

1) Dumpy is a commonly used mutant phenotype in the nematode worm C. elegans Two

1) Dumpy is a commonly used mutant phenotype in the nematode worm C. elegans Two Dumpy individuals are crossed to each other, and this cross produces 210 Dumpy and 68 wild-type in…

1) During DNA replication, to produce protein, a process called transcription co

1) During DNA replication, to produce protein, a process called transcription copies the sequence of part of one strand of a DNA molecule into a related molecule, known as _____. …

1) During which phase of the cell cycle is DNA replicated? A. GI B. G2 C. S D. C

1) During which phase of the cell cycle is DNA replicated? A. GI B. G2 C. S D. Cytokinesis 2) If you were told that for a certain plant, its height was controlled by one gene that…

1) Emma has multiple sclerosis. If you could view her nervoussystem you would fi

1) Emma has multiple sclerosis. If you could view her nervoussystem you would find         a lack of neurotransmittersin some neurons         areas where the myelin sheathhas dege…

1) Energy can be transferred and stored in cells in the form of: a) Chemical gra

1) Energy can be transferred and stored in cells in the form of: a) Chemical gradients b) Electrical gradients c) Phosphate groups d) Electrons e) Hydrogen atoms f) All of the abo…

1) Enzymes are important biological molecules that we have discussed through thi

1) Enzymes are important biological molecules that we have discussed through this course. Describe how the structure of an enzyme can contribute to its specific function within a …

1) Estrogen increases the risk of breast and uterine cancersbecause it a) inhibi

1) Estrogen increases the risk of breast and uterine cancersbecause it a) inhibits differentiation b) causes dna damage c)turns on the BRCA oncogenes d)acts as a tumor promoter by…

1) Even the simplest types of infectious agents must have DNA, RNA, and protein.

1) Even the simplest types of infectious agents must have DNA, RNA, and protein. a) Not all infectious agents have DNA, RNA, and protein. Some viruses have RNA and protein only, v…

1) Examine the fragility of an ecosystem and how quickly changes can happen that

1) Examine the fragility of an ecosystem and how quickly changes can happen that impact humans, food supplies, and environmental health. 2) Justify the presence or absence of gove…

1) Explain how biological diversity contributes to speciation. Include in your a

1) Explain how biological diversity contributes to speciation. Include in your answer; reasoning for conservation of biodiversity. 2)Why is variation within a species necessary fo…

1) Explain the basis of rigor. Where in the contraction cycle is the muscle arre

1) Explain the basis of rigor. Where in the contraction cycle is the muscle arrested? Why? Drag the words on the left to the appropriate blanks on the right to complete the senten…

1) Explain why each of the following happens: A. Overexpression of Macho-1 in th

1) Explain why each of the following happens: A. Overexpression of Macho-1 in the ascidian embryo results in an increase in the number of muscle cells but a decrease in the number…

1) Explain why we typically find more species under conditions of intermediate d

1) Explain why we typically find more species under conditions of intermediate disturbance compared to either rare or frequent disturbance. (Ch. 18) 2) Why might you expect commun…

1) Fallacies of Composition are a type of fallacy that deals with the following.

1) Fallacies of Composition are a type of fallacy that deals with the following. A vague or unclear word or phrase                           A grammatical error that leads to more…

1) Figure 1 illustrates a hypothetical gene regulatory network necessary therefo

1) Figure 1 illustrates a hypothetical gene regulatory network necessary therefore development of the embryonic urchin skeleton. for specification ot microenes anu Rpl is normally…

1) Figure 16.19 describes primary and secondary responses to antigen, indicate w

1) Figure 16.19 describes primary and secondary responses to antigen, indicate where a vaccination might be most effective, and also indicate where natural infection would play a …

1) Find and desribe the impact of an \"invasive\" species that threatens an ecos

1) Find and desribe the impact of an "invasive" species that threatens an ecosystem of interest to you.ly 2) Find and briefly explain an application of GIS in your major field of …

1) Find and list the total citations and H-indexes for three professors working

1) Find and list the total citations and H-indexes for three professors working in GMU in the Biology/Medicine fields, and briefly describe their research programs (any three prof…

1) Find p and F for a population with genotype frequencies 0.39, 0.42, and 0.19

1) Find p and F for a population with genotype frequencies 0.39, 0.42, and 0.19 for the A1A1, A1A2, and A2A2 genotypes, respectively. 2 )Calculate F for an offspring from mating b…

1) Find the false statement about the sickle-cell anemia allele. a) changing one

1) Find the false statement about the sickle-cell anemia allele. a) changing one base-pair of a gene can lead to disease b) the sickle-cell anemia allele encodes a hemoglobin B pr…

1) Find the mismatched set of (ecosystem-climate-vegetation) among the following

1) Find the mismatched set of (ecosystem-climate-vegetation) among the following choices: tropical rainforest: warm, humid, high biodiversity savanna: warm, dry, grasses and few t…

1) Florida manatees are now considered Threatened, which is defined as likely to

1) Florida manatees are now considered Threatened, which is defined as likely to become endangered in the ‘foreseeable future’, but how long is the ‘foreseeable future’ considered…

1) Florida manatees are now considered Threatened, which is defined as likely to

1) Florida manatees are now considered Threatened, which is defined as likely to become endangered in the ‘foreseeable future’, but how long is the ‘foreseeable future’ considered…

1) Flower beetles with thedominant allele R have black wings, whereas beetles th

1)      Flower beetles with thedominant allele R have black wings, whereas beetles thatare homozygous for the recessive allele r have red wings.A second, independently assorting g…

1) For NaOH ... a) If 39.99 g NaOH in 1L of water is a 1 M solution, what would

1) For NaOH... a) If 39.99 g NaOH in 1L of water is a 1 M solution, what would the molarity be if 39.99 g NaOH was dissolved in 0.5 L of water? b)How many grams of NaOH would you …

1) For a “monosynaptic” spinal reflex, which of the elements in the previous que

1) For a “monosynaptic” spinal reflex, which of the elements in the previous question is omitted? A) Effector B) Interneuron C)Motor Neuron D) Sensor E)Sensory neuron 2) White ske…

1) For each of the following genes whether it exists in a A color-blindness gene

1) For each of the following genes whether it exists in a A color-blindness gene on the X chromosome in a normal human male - Agene on chromosome 2 in an individual with Down synd…