Biology and Genetics

15. Scientific Discussion: please read the text below and then use it to answer

15. Scientific Discussion: please read the text below and then use it to answer the questions that follow. The normal pH of the blood is 7.35-7.45. It does not take a very large c…

15. Secretion of PTH is increased by: a. an increase in serum magnesium concentr

15.     Secretion of PTH is increased by: a.      an increase in serum magnesium concentration b.      an increase in serum phosphate concentration c.      an increase in dietary …

15. Shown below is a diagram indicating the phylogenetic distribution of differe

15. Shown below is a diagram indicating the phylogenetic distribution of different types of cell junctions across the Metazoa. Abbreviations for the cell junctions shown are as fo…

15. Shown below is a diagram indicating the phylogenetic distribution of differe

15. Shown below is a diagram indicating the phylogenetic distribution of different types of cell junctions across t Metazoa. Abbreviations for the cell junctions shown are as foll…

15. The amino acid R is dissolved in water at pH = 7.76. Which of the following

15. The amino acid R is dissolved in water at pH = 7.76. Which of the following statements is true? The amino acid will have a net charge of -1. The amino acid will have a net cha…

15. The carrying capacity of an environment for a particular species at a partic

15. The carrying capacity of an environment for a particular species at a particular time is determined by the a. number of individuals in the species. b. distribution of the popu…

15. The detailed record of the heartbeat is an instrument that provides a a. Ele

15. The detailed record of the heartbeat is an instrument that provides a a. Electrophysiograph c. Defibrillator b. Electrocardiogram d. Cardiophysiometer 16. The sum of the numbe…

15. The maximum likelihood tree (the tree with the clades numbered) constructed

15. The maximum likelihood tree (the tree with the clades numbered) constructed for the mammals in the figures shown supports which of the following hypotheses for the evolutionar…

15. The pathetic nervous system is characterized by Moo-Shot n the absence of po

15. The pathetic nervous system is characterized by Moo-Shot n the absence of postganglionic axons. B long postganglionic axons the absence of preganglionic fibers. b thort postga…

15. The southern grasshopper mouse feeds regularly on the Arizona bark scorpion,

15. The southern grasshopper mouse feeds regularly on the Arizona bark scorpion, the most venomous scorpion in the United States. While attempting to capture the scorpion, the mou…

15. The word Equinox means a equal night b. before noon c. midnight d sun rise 1

15. The word Equinox means a equal night b. before noon c. midnight d sun rise 16. What is the path that the Sun follows called? a. Celestial Equator b. Meridian c. Longitude d. E…

15. There are multiple possible explanations for how and why -oxidation might be

15.  There are multiple possible explanations for how and why -oxidation might be blocked. Consider that there could be an inborn error in metabolism (a polymorphism in a gene cod…

15. There are multiple possible explanations for how and why -oxidation might be

15. There are multiple possible explanations for how and why -oxidation might be blocked. Consider that there could be an inborn error in metabolism (a polymorphism in a gene codi…

15. Thick skin A. has three different epidermal straia B, has fewer layers of ce

15. Thick skin A. has three different epidermal straia B, has fewer layers of cells in the stratum cormeum than thin skin. is found covering most of the body is found in areas sub…

15. Thick skin A. has three different epidermal strat?a. B has fewer layers of c

15. Thick skin A. has three different epidermal strat?a. B has fewer layers of cells in the stratum comeum than thin skin. is found covering most of the body. is found in areas su…

15. Thick skin A. has three different epidermal strata. B, has fewer layers of c

15. Thick skin A. has three different epidermal strata. B, has fewer layers of cells in the stratum cormeum than thin skin. C. is found covering most of the body. D. is found in a…

15. Thick skin A. has three different epidermal strata. B, has fewer layers of c

15. Thick skin A. has three different epidermal strata. B, has fewer layers of cells in the stratum comeum than thin skin. C. is found covering most of the body D. is found in are…

15. This question has to do with the formation of condensation funnels in tornad

15. This question has to do with the formation of condensation funnels in tornados. When air parcels are drawn into a tornado’s circulation, they experience a pressure drop as the…

15. This type of epithelia has cells that produce a substance and release it, ei

15. This type of epithelia has cells that produce a substance and release it, either onto a surface or into the blood a exchange b. transport c. ciliated d. protective e secretory…

15. This type of epithelia has cells that produce9bstance and release it, eit bl

15. This type of epithelia has cells that produce9bstance and release it, eit blood a exchange b. transport c. cillated d. protective e secretory 16. What will occur if solution A…

15. UV rays can create thymidine dimers. This type of DNA damage is typically fi

15. UV rays can create thymidine dimers. This type of DNA damage is typically fixed by which DNA repair system (circle one). a. Base Excision Repair (BER) b. Nucleotide Excision R…

15. Urban areas place intense pressure on ecosystems. Some of the negative impac

15. Urban areas place intense pressure on ecosystems. Some of the negative impact can be reduced by cultivating urban forests. These green spaces filter air, water, and sunlight. …

15. Using a single word to express an entire thought is called a (also called fe

15. Using a single word to express an entire thought is called a (also called fear of strangers) is first noticeable at about 6 months , which is the infant's fear of being left b…

15. What do DNA polymerases require for replication to begin? A) deoxynucleoside

15. What do DNA polymerases require for replication to begin? A) deoxynucleoside 5'-triphosphates B) single-stranded template DNA C) a primer strand to elongate D) All of the abov…

15. What happens to proteins that misfold in the ER? 16. You are at a cocktail p

15. What happens to proteins that misfold in the ER? 16. You are at a cocktail party and overhead an obnoxious academic trying to impress a group of students by saying: “The inter…

15. What is accomplished when ATP is hydrolyzed by DnaA? a) Allows formation of

15. What is accomplished when ATP is hydrolyzed by DnaA? a) Allows formation of the oriC/DnaA complex b) Allows DnaA to unwind DNA c) Inacti vates the DnaA for replication initiat…

15. What is glycolysis? Which metabolic pathways use glycolysis? Describe what h

15. What is glycolysis? Which metabolic pathways use glycolysis? Describe what happens to a glucose molecule during glycolysis. What are the reactants an products of this process?…

15. What is meant by the term signal transduction? (5 marks) 16. Normal cells gr

15. What is meant by the term signal transduction? (5 marks) 16. Normal cells greatly slow their rates of cell division after filling a culture dish with a layer that is one cell …

15. What is the difference between the Richter Scale and Mercalli Scale? (0.5 pt

15. What is the difference between the Richter Scale and Mercalli Scale? (0.5 pt) The Richter Scale is quantitative, and measures the actual energy of an earthquake, while the Mer…

15. What makes up the intitiation complex atthe start of translation? A. a large

15. What makes up the intitiation complex atthe start of translation? A. a large and a small ribosomal subunit B. In the nucleus C. In the nucleolus D. Anywhere in the cell E. In …

15. What three events occur during the light-dependent reactions of photosynthes

15. What three events occur during the light-dependent reactions of photosynthesis? a. reduction of oxygen, oxidation of NADPH, formation of ATIP b. oxidation of water, reduction …

15. What type of plate boundary exists between Plate C and Plate E, east of the

15. What type   of   plate   boundary   exists   between   Plate   C   and   Plate   E,   east   of   the   Southwestern   Islands? a.   Convergent b.   Transform c.   Divergent 1…

15. Where in the cell would you expect to find the following molecules? a) Integ

15. Where in the cell would you expect to find the following molecules? a) Integrin _________________________________________ b) ?-Tubulin ________________________________________…

15. Which of the following are believed to have been an important cause of mass

15. Which of the following are believed to have been an important cause of mass extinction? (a) volcanic flood basalts. (b) ice ages (c) meteorite impact. (d) All of the above 16.…

15. Which of the following are more likely found in a Paramecium protist than in

15. Which of the following are more likely found in a Paramecium protist than in a Salmonella bacterium? [*This is a multiple answer question, please mark all that apply.]1 a. Rib…

15. Which of the following atoms will form an lonic bond? A two hydrogen (H) ato

15. Which of the following atoms will form an lonic bond? A two hydrogen (H) atoms B. two oxygen (O) atoms one carbon (C) and four hydrogen (H) atoms D. one sodium (Na) and one ch…

15. Which of the following germicidal agents is not a halogen? a. lodine b. Phen

15. Which of the following germicidal agents is not a halogen? a. lodine b. Phenol c. Chlorine d. All of these are halogens 16. All of the following germicidal agents affecet micr…

15. Which of the following is an adaptation of plants to life on land a Presence

15. Which of the following is an adaptation of plants to life on land a Presence of chlorophy b. B Waay cuticle covering the leaves E. C Prokaryotic cells d D. Coll walh All of th…

15. Which of the following reactions could occur spontaneously under the standar

15. Which of the following reactions could occur spontaneously under the standard conditions that specify (G? (1) ADP + Pi ( ATP (G( = +7.3 kcal/mole (2) glucose-1-phosphate ( glu…

15. Which of the following reactions represents the ghaconcogenic reversal of PF

15. Which of the following reactions represents the ghaconcogenic reversal of PFK-1 in glycolysis? A fructose-6-P + ADP ® fructose + ATP B. fructose-6-P+H.O&fructose;+P C. fru…

15. Which of the following types of cell stimulates other immune cells to attack

15. Which of the following types of cell stimulates other immune cells to attack and destroy? a. Helper T-cells b. Plasma cells c. Cytotoxic T-cell d. Natural killer cells 16. The…

15. Which one of the following is not a member of the phylum Cnidaria? A) jellyf

15. Which one of the following is not a member of the phylum Cnidaria? A) jellyfish B) comb jelly C) hydra D) coral E) sea anemone 16. Ferns have horizontal stems called A) mycorr…

15. Which one of the following statements about lunar eclipses is false ? (a) Lu

15. Which one of the following statements about lunar eclipses is false? (a) Lunar eclipses don't occur monthly because of the inclination of the Moon's orbit around the Earth rel…

15. Which quality is LEAST likely to change as people age? A) neuroticism B) lif

15. Which quality is LEAST likely to change as people age? A) neuroticism B) life priorities C) altruism D) maturity 16. Compared to other groups, African Americans are MOST apt t…

15. Why are there so many species stilli unknown to modern science? a. Many of t

15. Why are there so many species stilli unknown to modern science? a. Many of these species are found in remote environments b. Smaller species receive less attention than large …

15. You are performing an experimen to study the differentialC expression of PEC

15. You are performing an experimen to study the differentialC expression of PECAM-1 mRNA in different tissues using northern blot analysis. You have obtained following gel images…

15. Young rainbow trout were sampled along a river to study the population and d

15. Young rainbow trout were sampled along a river to study the population and determine if recreational fishing or other factors might be affecting the size of the population. A.…

15. Your neighbor calls you over to \"check out this as- sheet pirin bottle\" th

15. Your neighbor calls you over to "check out this as- sheet pirin bottle" that she found in her medicine cabinet. It has a strong vinegary odor. She wants to know if she can sti…

15. a-Fibrinogen is a protein found 1 in blood. Spectrum A shows the 80 electros

15. a-Fibrinogen is a protein found 1 in blood. Spectrum A shows the 80 electrospray MS/MS spectrum of a 60 tryptic peptide of a-fibrinogen from a 40 healthy individual. Spectrum …

15. a. There are three nucleotides in each codon, and each of these nucleotides

15. a. There are three nucleotides in each codon, and each of these nucleotides can have one of four different bases. How many possible unique codons are there? b. If DNA had only…