Biology and Genetics

4) As you know, tRNA molecules are highly modified during their maturation. The

4) As you know, tRNA molecules are highly modified during their maturation. The most striking of these modifications are the chemical alterations of the bases. Uracil (U) is modif…

4) Assume that a researcher has finally produced two different drugs that increa

4) Assume that a researcher has finally produced two different drugs that increased survival of neurons in cell culture to be used for treating Alzheimer's disease: one is a small…

4) Below is a phylogenetic tree among a group of bird species. The characteristi

4) Below is a phylogenetic tree among a group of bird species. The characteristics of the birds' tails are mapped onto the tree. Tails are either long or short, thick or thin, and…

4) Classify each of the following mutation as either Framoshift (deletion, inser

4) Classify each of the following mutation as either Framoshift (deletion, insertion) OR Substitution (missense, silent or nonsense) mutation. Use the GENETIC CODE a) Original Wil…

4) Compare and contrast the structure of mitochondria and chloroplasts. Describe

4) Compare and contrast the structure of mitochondria and chloroplasts. Describe 2 and 2 differences in structure between these organelles (4 points) similarities in structure. Je…

4) Complete the table below to explain the hormonal regulation of the metabolic

4) Complete the table below to explain the hormonal regulation of the metabolic pa have discussed this quarter thways we Physiologic Hormone Pathways turned on byfor one enzyme th…

4) Concisely, describe the particular festures of Creighton\'s and McClintock\'s

4) Concisely, describe the particular festures of Creighton's and McClintock's experiment that allowed them. io prove Morgan's hypothesis that coupling and repulsion results from …

4) Consider the following sequence of a DNA double helix. (20 poines) A) Using t

4) Consider the following sequence of a DNA double helix. (20 poines) A) Using the genetic code table below, A) determine the mRNA sequence resulting from transcription. (5 points…

4) Consider the following sequence of a DNA double helix. (20 points) 2 A) Using

4) Consider the following sequence of a DNA double helix. (20 points) 2 A) Using the genetic code table below, A) determine the mRNA sequence resulting from transcription. (5 poin…

4) Define protolith\" is the original, metamorphosed Fock froh wlleh a givel met

4) Define protolith" is the original, metamorphosed Fock froh wlleh a givel metamorpie loek Is lomeu 5) Metamorphic textures: What are the two primary metamorphic textures we use …

4) Describe the role of methylation in regulating gene expression. (In other wor

4) Describe the role of methylation in regulating gene expression. (In other words, does it promote or inhibit gene expression, what is methylated, and what proteins add or remove…

4) Determine the diploid number (2n) of the following unknown organisms from the

4) Determine the diploid number (2n) of the following unknown organisms from the cell observations given below. Draw what each cell looks like at the indicated stage, including al…

4) Duchenne muscular dystrophy is due to a sex-linked recessive gene. A normal m

4) Duchenne muscular dystrophy is due to a sex-linked recessive gene. A normal male and a normal temale have children. Their first child (a boy) has Duchenne muscular dystrophy a)…

4) Erythropoietin (EOP) is aand its job is to Ajhormone...\'ll the spleen to bre

4) Erythropoietin (EOP) is aand its job is to Ajhormone...'ll the spleen to break down old blood cells B) hormone...tell the bone marrow to make more blood cells C) enzyme....allo…

4) Examine the diagrams below (from the power point presentation) for bacterial

4) Examine the diagrams below (from the power point presentation) for bacterial cyclic anoxygenic photophosphorylation. The first diagram depicts initial capture of light by anten…

4) Exposure of DNA to oxidizing agents can result in the oxidation of G residues

4) Exposure of DNA to oxidizing agents can result in the oxidation of G residues in the DNA resulting in the formation 8-oxoG. This damage is highly mutagenic since 8- oxoG can pa…

4) For a population at Hardy-Weinberg equilibrium, what is the ratio of heterozy

4) For a population at Hardy-Weinberg equilibrium, what is the ratio of heterozygotes to recessive homozygotes when q = 0.10. What is it when q = 0.001? How does this relate to th…

4) For the following four merodiploids determine whether the products of the Z a

4) For the following four merodiploids determine whether the products of the Z and Y genes (ß-galactosidase and lactose permease, respectively) are made in the absence or presence…

4) From the maize cross above you get the following offspring: 82 colorless, tal

4) From the maize cross above you get the following offspring: 82 colorless, tall; 18 colorless, short; 22 colored, tall; 78 colored, short. Which are the recombinant classes of o…

4) GREEN ENERGY SOURCES Petroleum and coal can meet the energy demands of the Un

4) GREEN ENERGY SOURCES Petroleum and coal can meet the energy demands of the United States for decades to come, but a.) What are some of the benefits of burning hydrogen (H2) for…

4) Genetic transformation involves the insertion of some new DNA into the E. col

4) Genetic transformation involves the insertion of some new DNA into the E. coli cells. In addition to one large chromosome, bacteria often contain one or more plasmids. Explain …

4) Hint for MPN calculation: The following gives an estimate of the MPN. First,

4) Hint for MPN calculation: The following gives an estimate of the MPN. First, select 5 highest the lowest dilution that doesn't have all positive tubes. Second, select the dilut…

4) If skin cells from an individual with Xeroderma pigmentosum were exposed to U

4) If skin cells from an individual with Xeroderma pigmentosum were exposed to UV light and incubated with radiolabeled nucleotides and washed, you would find that _________ becau…

4) If the plant has withered, what does the relationship of the cells in the pla

4) If the plant has withered, what does the relationship of the cells in the plant to outside of the plant need to be in order for water to move into the plant? A)The cells inside…

4) Imagine that you have engineered a set of genes, each encoding a protein with

4) Imagine that you have engineered a set of genes, each encoding a protein with a pair of conflicting signal sequences that specify different cellular compartments. If the genes …

4) In a species of water strider, two alleles of one gene determine the characte

4) In a species of water strider, two alleles of one gene determine the character difference o long versus short wings, and two alleles of a separate, independent gene determine t…

4) In eukaryotic cells, some transcription activators _________. Mark the correc

4) In eukaryotic cells, some transcription activators _________. Mark the correct answer(s). a. direct the hyperacetylation of nucleosomes near a promoter region opens the chromat…

4) In order to help you understand the added benefits of using a signal transduc

4) In order to help you understand the added benefits of using a signal transduction pathway versus having direct signaling in a cell, take a look at the figure below. In it you w…

4) In the digestive system, most nutrient absorption occurs in the C) pancreas.

4) In the digestive system, most nutrient absorption occurs in the C) pancreas. D) small intestine. 5 Tuna, sharks, and penguins have adapted to their environment by becoming fast…

4) List the basic steps to performing a GWAS. (2 pts) Missed class regarding bas

4) List the basic steps to performing a GWAS. (2 pts) Missed class regarding basic steps to performing a GWAS Found this on the internet Step 1: Variant identification (sequencing…

4) List the basic steps to performing a GWAS. can someone help with this? Wasted

4) List the basic steps to performing a GWAS. can someone help with this? Wasted three questions. was given websites that did not help Missed class regarding basic steps to perfor…

4) Local governmental efforts to control air pollution from automobiles might re

4) Local governmental efforts to control air pollution from automobiles might reasonably include which of the following? a) Mandatory annual auto emission inspections b) Promotion…

4) Longitude–Chronometer a. [5] At the exact moment the sun reaches it zenith ov

4) Longitude–Chronometer a. [5] At the exact moment the sun reaches it zenith over a ship at sea, the on-board chronometer indicates that the time at the Prime Meridian is 7:22 PM…

4) Look at the northern midsection of the country. There is a distinct cutoff be

4) Look at the northern midsection of the country. There is a distinct cutoff between two climate zones. Which are the two climate zones? 5) The moderate climates, Cfa and Csa, sh…

4) Methotrexate is an inhibitor of the enzyme dihydrofolate reductase and is oft

4) Methotrexate is an inhibitor of the enzyme dihydrofolate reductase and is often used as a chemotherapy agent for treatment of leukemia, non-Hodekins lymphoma, and some forms of…

4) Na+ -dependent action potentials were investigated in a large axon of Sepia (

4) Na+ -dependent action potentials were investigated in a large axon of Sepia (cuttlefish). Sepia axons behave similarly to the squid axon studied in class. Assume the resting po…

4) Noted here are a few proteins whose functions are required for DNA replicatio

4) Noted here are a few proteins whose functions are required for DNA replication: I. Primase II. Single Strand Binding Proteins III. Helicase IV. DNA polymerase 3 V. DNA polymera…

4) Omoic solution 8 Oigsaccharides re long chains of lipids linknd to po and pho

4) Omoic solution 8 Oigsaccharides re long chains of lipids linknd to po and phospholipids on the surface of cells can causc the intcrior of the neuro to have a momentary positive…

4) Organophosphates inhibit the action of acetylcholinesterase. Exposure to many

4) Organophosphates inhibit the action of acetylcholinesterase. Exposure to many types of insecticides results in organophosphate poisoning. a) How would organophosphate poisoning…

4) PLATE TECTONICS talic 10 Mit. Everest 8850 meters Land-29,2% Mountains Avg. e

4) PLATE TECTONICS talic 10 Mit. Everest 8850 meters Land-29,2% Mountains Avg. elevasion of Avg. depth of oceans 3729 meters magn Deep ocean Trenches Ocean. 70.9% 24 20 6 12 0 Mil…

4) Pyruvate dehydrogenase (PDH) is a critical regulatory point of aerobic energy

4) Pyruvate dehydrogenase (PDH) is a critical regulatory point of aerobic energy metabolism. It is regulated though a process of phosphorylation/dephosphorylation shown in the dia…

4) Question 4 (3 pts) You are patch-clamping a cell. While holding the neuron at

4) Question 4 (3 pts) You are patch-clamping a cell. While holding the neuron at different membrane potentials, you observed the current recordings below a. (1 pt) How many channe…

4) Questions A-D below list four experimental conditions for sea urchin fertiliz

4) Questions A-D below list four experimental conditions for sea urchin fertilization. Match each with one of the observed outcomes (1-5), and briefly explain each answer. (3pts e…

4) Single gene traits and dominance Alyssa is breeding rabbits for a 4H competit

4) Single gene traits and dominance Alyssa is breeding rabbits for a 4H competition. She is convinced that if she can breed a straight eared, brown bunny she will be a shoo in to …

4) Suppose that Gene A corresponds to a human disease gene. Many patients had th

4) Suppose that Gene A corresponds to a human disease gene. Many patients had their genomic DNA isolated and amplified for the Gene A region. The PCR products were digested with t…

4) Suppose that in the Lenski experiment, the number of doublings per day of gen

4) Suppose that in the Lenski experiment, the number of doublings per day of genotype 1 and 2 (e.g., ancestral genotype and new mutant) are D1 and D2. A) Expressed in terms of D1 …

4) The DNA sequence of a short gene from a sea slug, and the mature RNA synthesi

4) The DNA sequence of a short gene from a sea slug, and the mature RNA synthesized from this gene, are shown below DNA sequence: A -T mature mRNA: 5' - cap-AUCUÇAUGUGrGAACGCUGACU…

4) The following is a list of the events that occur during a muscle contraction

4) The following is a list of the events that occur during a muscle contraction 1. 2. 3. 4. 5. 6. Myosin cross-bridges bind to the actin. The free myosin head splits ATP Calcium i…

4) The haploid gametophytes of bryophytes are ________. A) multicellular, just l

4) The haploid gametophytes of bryophytes are ________. A) multicellular, just like the haploid stages of animal species B) multicellular and produce zygotes C) usually composed o…

4) The mandible has condylar processes and coronoid processes. a) Both are artic

4) The mandible has condylar processes and coronoid processes. a) Both are articular in function. b) Both are for muscle attachment. c) The condylar process is articular; the coro…