Biology and Genetics

2. A newborn is diagnosed with pyloric stenosis and treated with a laparoscopic

2.     A newborn is diagnosed with pyloric stenosis and treated with a laparoscopic pyloromyotomy.               Root operation:                ICD-10-PCS code:    4.     A patien…

2. A normal human contains 5 L of blood, approximately 2% of which is resident i

2. A normal human contains 5 L of blood, approximately 2% of which is resident in the systemic (i.e., non-pulmonary) capillaries at any given time. (1) Assuming that the capillari…

2. A patient\'s plasma volume is 3L, and his plasma osmolarity is 280mOsM. The p

2. A patient's plasma volume is 3L, and his plasma osmolarity is 280mOsM. The patient is given 1L of an intravenous solution that contains the following: 140mM NaCL · 90 mg/dL glu…

2. A plant species X with n-5 chromosomes was crossed with a related species Y w

2. A plant species X with n-5 chromosomes was crossed with a related species Y with n-7 chromosomes. The F? hybrids produced only a few pollen grains, which were used to fertilize…

2. A protein was purified to homogeneity. The mass was determined to be 60 kD by

2. A protein was purified to homogeneity. The mass was determined to be 60 kD by gel-filtration chromatography. When gel-filtration chromatography was repeated in the presence of …

2. A rabbit rancher reports that a single male rabbit among a litter is observed

2. A rabbit rancher reports that a single male rabbit among a litter is observed to have an unusual fur texture that would be a valuable source for garments. He asks your advice o…

2. A rabbit rancher reports that a single male rabbit among a litter is observed

2. A rabbit rancher reports that a single male rabbit among a litter is observed to have an unusual fur texture that would be a valuable source for garments. He asks your advice o…

2. A recessive allele (e) is epistatic over the B gene locus, producing a golden

2. A recessive allele (e) is epistatic over the B gene locus, producing a golden cot homozygous (ee). Dogs that are homozygous dominant (EE) o determined by the B locus, either bl…

2. A recurring theme in human reproduction derived from outcome results from lit

2. A recurring theme in human reproduction derived from outcome results from literally millions of IVF treatments is that the developmental fate of the embryo, i.?., whether it wi…

2. A recurring theme in human reproduction derived from outcome results from lit

2. A recurring theme in human reproduction derived from outcome results from literally millions of IVF treatments is that the developmental fate of the embryo, i.e., whether it wi…

2. A research group is studying how a new drug compound affects melanoma (skin c

2. A research group is studying how a new drug compound affects melanoma (skin cancer) cells. They grow the cells in the wells of a culture dish (pictured on the right). To differ…

2. A researcher is studying the mating calls of a widespread species of cricket.

2. A researcher is studying the mating calls of a widespread species of cricket. He discovers that male crickets collected from different locations give different calls. Furthermo…

2. A resistant inbred cultivar and a susceptible inbred cultivar are crossed to

2. A resistant inbred cultivar and a susceptible inbred cultivar are crossed to generate an F1. You observe that the F1 has a level of resistance that is intermediate between the …

2. A scientist isolates two specific mRNAs. One codes for the enzyme fowlase, an

2. A scientist isolates two specific mRNAs. One codes for the enzyme fowlase, an enzyme that is involved in digestion in chickadees; the other codes for the quail enzyme quailase …

2. A scientist was able to measure the daily movement distances (DMD) of 14 spec

2. A scientist was able to measure the daily movement distances (DMD) of 14 species of mustelids (weasels and relatives) of different body masses. She derived the following allome…

2. A series of two-point crosses were carried out among twelve loci (a, b, c, d,

2. A series of two-point crosses were carried out among twelve loci (a, b, c, d, e, f, g. h, i, j. k, I). producing the following recombination frequencies. Using these recombinat…

2. A short fragment of a human gene is shown below. gaaccactca gggtcctgtg gacagc

2. A short fragment of a human gene is shown below. gaaccactca gggtcctgtg gacagctcac gaattcctag ctgcaatggc tacaggctcc cggacgtccc tgctcctggc ttttggcctg ctctgcctgc cctggcttca agaggg…

2. A star of declination Dec 27 is currently culminating on the meridian at your

2. A star of declination Dec 27 is currently culminating on the meridian at your observatory, located at a latitude of 20 N. a ao pts) Calculate the airmass of the star. b) 10 pts…

2. A student is asked to determine the density of a medium sized seashell and mu

2. A student is asked to determine the density of a medium sized seashell and must use the water displacement method in order to do so. The student first weighs the seashell and d…

2. A study examined the association between physician prescribing practices and

2. A study examined the association between physician prescribing practices and opioid use disorder. Individuals with opioid use disorder were identified via medical records among…

2. A trihybrid individual heterozygous for three corn seed traits is testcrossed

2. A trihybrid individual heterozygous for three corn seed traits is testcrossed.        Parents: CCssWW (CsW/CsW)       X       ccSSww (cSw/cSw)        Trihybrid: CcSsWs (CsW/cSw…

2. A. You want to use PCR to amplify the entire DNA shown in the figure below. O

2. A. You want to use PCR to amplify the entire DNA shown in the figure below. Of the listed primers, choose the pair that will allow you to amplify this stretch of DNA by PCR. (9…

2. A76-year-old man with atherosclerosis had been previously admitted for abdomi

2. A76-year-old man with atherosclerosis had been previously admitted for abdominal aneurysm and resection of the perirenal aorta. He had several follow-up admissions over the nex…

2. A: A large quantity of K ions are added to the extracellular fluid of a neuro

2. A: A large quantity of K ions are added to the extracellular fluid of a neuron. The neuron is then stimulated to generate an action potential. During this action potential, how…

2. ANTHRAXt In late 2001, soon after the terrorist attacks of September 11th, th

2. ANTHRAXt In late 2001, soon after the terrorist attacks of September 11th, the United States was in the grip of a new terror threat. Between October 4th and November 20th, twen…

2. ATP hydrolysis is coupled to chemical reactions that are otherwise thermodyna

2. ATP hydrolysis is coupled to chemical reactions that are otherwise thermodynamically unfavorable. A. In the figure below, circle the appropriate terms for each graph (endergoni…

2. According to the phylogenetic tree which two organisms share the most recent

2. According to the phylogenetic tree which two organisms share the most recent common ancestor? 3. By examining evidence from fossils, and molecular and anatomical comparisons, e…

2. Acetyl-CoA enters the citric acid cycle by combining with oxaloacetate to for

2. Acetyl-CoA enters the citric acid cycle by combining with oxaloacetate to form citrate. One turn of the cycle evolves two CO2 molecules and regenerates oxaloacetate. Studies ha…

2. Aerobic versus anaerobic metabolism (30 points). a. Triose phosphate isomeras

2. Aerobic versus anaerobic metabolism (30 points). a. Triose phosphate isomerase (TIM) catalyzes the conversion of DHAP to GAP. Cells lacking TIM can stay alive, but only under a…

2. Aerobic versus anaerobic metabollsm (30 points),. a. Triose phosphate isomera

2. Aerobic versus anaerobic metabollsm (30 points),. a. Triose phosphate isomerase (TIM) catalyzes the conversion of DHAP to GAP Cells lacking TIM can stay alive, but only under a…

2. After cloning the Citrate Synthase gene you consulted the genome databases an

2. After cloning the Citrate Synthase gene you consulted the genome databases and find that the human Citrate Synthase enzyme (found in the Krebs Cycle) primary conformation begin…

2. After measuring the distance across the river channel, one measures the water

2. After measuring the distance across the river channel, one measures the water depths at equally spaced intervals. The depths and distances are then used to calculate the area w…

2. After membrane fusion occurs via SNARE proteins (SNAREs), the SNARE complex i

2. After membrane fusion occurs via SNARE proteins (SNAREs), the SNARE complex is separated into individual SNARE proteins by the protein NSF. You are studying a t-SNARE that is e…

2. After your frustration with tissue culture, you finally get your cells passag

2. After your frustration with tissue culture, you finally get your cells passaged and decide to set up your cDNA synthesis reaction, PCR, and agarose gel. You have extracted RNA …

2. Air Temperature and Dewpoint temperature for three locations are listed below

2. Air Temperature and Dewpoint temperature for three locations are listed below. Remember that air temperature is closely related to the holding capacity of the air and dewpoint …

2. Air __________ at the equator and creates __________ pressure at the surface.

2. Air __________ at the equator and creates __________ pressure at the surface. a. sinks, high b. sinks, low c. rises, high d. rises, low 3. Air __________ at the horse latitudes…

2. Albinism, lack of pigmentation in humans, results from an autosomal recessive

2. Albinism, lack of pigmentation in humans, results from an autosomal recessive gene (a). Two parents with normal pigmentation have an albino child. a) What is the probability th…

2. All cellular forms of life have one or more a. mitochondria b. chloroplast c.

2. All cellular forms of life have one or more a. mitochondria b. chloroplast c. cellular (plasma membrane) d. nucleus e. intracellular membrane f. subcellular organelle cell 3. W…

2. All of the hetero-allosteric modulators of O2 binding to hemoglobin in mammal

2. All of the hetero-allosteric modulators of O2 binding to hemoglobin in mammals are produced as a result of glucose catabolism in glycolysis and the TCA cycle. a. What are all o…

2. All seed plants are heterosporous and produce pollen grains as well as seeds.

2. All seed plants are heterosporous and produce pollen grains as well as seeds. However, there are examples of transitions between seedless vascular plants (lack seeds; generally…

2. All three of the parent dust bunnies also have flaky skin, which is an undesi

2. All three of the parent dust bunnies also have flaky skin, which is an undesirable trait in dust bunnies. When Twinkle was mated with Thor, the following offspring phenotypes w…

2. An 85 year-old male presents to the emergency room with pneumonia. He has bee

2. An 85 year-old male presents to the emergency room with pneumonia. He has been febrile for several days and has had a cough productive of yellow sputum On physical exam he is a…

2. An E. coli strain contains the mutant alleles gal- and glu- , indicating that

2. An E. coli strain contains the mutant alleles gal- and glu-, indicating that it cannot metabolize the sugars galactose or glucose for energy. a. Indicate whether this strain ca…

2. An Fi plant undergoes offipring. A self-fertilization (AaBbCeDdEeFy X AaBbCeD

2. An Fi plant undergoes offipring. A self-fertilization (AaBbCeDdEeFy X AaBbCeDdEeF) to produce F (MaBbCel ssum e independent assortment of these six genes. (10 points) a) How ma…

2. An Hfr strain is used to map four genes in an interrupted mating experiment.

2. An Hfr strain is used to map four genes in an interrupted mating experiment. The cross is Hfra"b"c" rip x Fa-b-c-t. (No map order is implied in the listing of the alleles; if i…

2. An Hfr strain is used to map four genes in an interrupted mating experiment.

2. An Hfr strain is used to map four genes in an interrupted mating experiment. The cross is Hina.b"c" rip x Fa-b-c-t. (No map order is implied in the listing of the alleles; if i…

2. An Hfr strain is used to map four genes in an interrupted mating experiment.

2. An Hfr strain is used to map four genes in an interrupted mating experiment. The cross is Hta+be+ × F-ab-c-d, (No map order is implied in the listing of the alleles; if is resi…

2. An action potential is an all-or-none event, meaning that the amplitude is al

2. An action potential is an all-or-none event, meaning that the amplitude is always the same, regardless of the characteristics of the stimulus. If action potentials are the only…

2. An adult at rest need about 2000 kCal energy per day, which is called basal m

2. An adult at rest need about 2000 kCal energy per day, which is called basal metabolic rate (BMR) What power output does this BMR correspond to in watts? What is the energy of B…

2. An annual plant has a population of 200 individuals in generation 4 and six g

2. An annual plant has a population of 200 individuals in generation 4 and six generations later, it has a population of 400 individuals. a. What is the per capita rate of increas…