BIO 325 (BIO325)

__________ is the basic unit of inheritance gene What are examples of a pure breeding line? -A population of short plants whose parents were all short -A population of tall plants with purple flowers that have produced the same phenotype for several generations Transgenic mice can be created by injecting DNA into __________ of a zygote one pronucleus The DNA that is injected may ____________ so that there are many tandem copies. concatamerize The injected DNA integrates into the host ch...

When administering medications, which concept pertaining to the blood-brain barrier must the nurse understand? -Correct Answers -Highly lipophilic medications cross the blood-brain barrier directly. When caring for a patient with increased intracranial pressure, which laboratory value trend requires immediate action by the nurse? -Correct Answers -A rising PaCO2 level When assessing a patient with traumatic brain injury, which cerebral blood flow would the nurse consider normal? -Correc...

Some restriction endonucleases produce 'sticky' ends. What makes an end sticky? A) blunt ends B) single-stranded complementary tails C) poly-A sequences D) 5' cap E) Interference -Correct Answers -B (single-stranded complementary tails) List two especially useful characteristics of cloning vector A) high copy number and antibiotic-resistance gene B) virulence and lysogenecity C) ability to integrate into host chromosome and cause lysis of the host cell D) nonautonomous r...

replicate store information express information allow variation by mutation -Correct Answers -to serve as genetic material, a molecule must be able to __ (4) Proteins and nucleic acids were the major candidates for the genetic material. -Correct Answers -before 1944, observations favored that ___ Griffith -Correct Answers -____ found Evidence Favoring DNA as the Genetic Material and Was First Obtained during the Study of Bacteria and Bacteriophages avirulent to virulent -Correct Answ...

What is the driving force in protein folding? -Correct Answers -Hydrophobic interactions among non-polar R-groups acidic amino acids -Correct Answers -Asp, Glu basic amino acids -Correct Answers -Lys, Arg, His polar amino acids -Correct Answers -Ser, Thr, Tyr, Asn, Gln nonpolar amino acids -Correct Answers -Gly, Ala, Val, Leu, Ile, Met, Cys, Phe, Typ, Pro Chloroplast -Correct Answers -Site of CO2 reduction that results in the production glucose Lysosome -Correct Answers -Breaks...

paradigm shift -Correct Answers -a fundamental change in approach or underlying assumptions. - When Charles Darwin laid out his theory of evolution, the way we originally thought had entirely changed Darwin's Two Revolutionary Ideas -Correct Answers -1. The diversity of life we see has descended from previously existing species, which share a common ancestor further back in time 2. The fit of species to their environment is a result of natural selection (a gradual process in which fo...

Proximate/Mechanism -Correct Answers -How do modern day animals carry out their function? Ultimate/Origin -Correct Answers -Why do modern day animals possess the features that they do? What are the main subjects to consider in the study of animal physiology? -Correct Answers -1. Animals/Humans 2. Their Environment 3. Evolutionary Processes Define homeostasis. -Correct Answers -Maintaining a stable internal environment Define allometry. -Correct Answers -The study of how various tra...

eukaryotes -Correct Answers -are larger and have more extensive intracellular anatomy and organization; have a characteristic set of membrane-bound organelles, that includes a well-defined nucleus. prokaryotes -Correct Answers -contain no organelles and their nuclear material is not encased by a. nuclear membrane; LACK OF NUCLEUS chromosome, histones -Correct Answers -the nuclei of prokaryotic cells carry genetic information in a singular circular WHAT and they lack a class of proteins...

Evolution -Correct Answers -Change in allele frequencies in a population over time Synapomorphies -Correct Answers -shared derived traits examples: fossil record transitional forms -Correct Answers -Fossils or organisms that show the intermediate states between an ancestral form and that of its descendants isotopic evidence -Correct Answers -Ratios of isotopes preserved in sediments. Could be used to know where animal lived due to ratios of isotopes recorded to oxygen levels. ...

transcription factor any group of proteins that can regulate gene activity by increasing or decreasing the binding of RNA polymerase to the DNA molecule during transcription. Achieved by the ability to bind to DNA molecules RNA Transcription Sequence (7 steps) 1. RNA polymerase together with 1+ transcription factors binds to promoter DNA 2. RNA polymerase breaks H-bonds between complementary DNA nucleotides and creates transcription bubble which separates the two strands of the DNA helix 3....