Biology and Genetics

4. Sequence of Leucine Enkephalin, a brain opioid peptide. a. Complete hydrolysi

4. Sequence of Leucine Enkephalin, a brain opioid peptide. a. Complete hydrolysis by 6M HCI at 110°C followed by amino acid analysis indicated the presence of G (Gly), L (Leu), F …

4. Sequencing genomes of tumor cells identifies many mutations in the genome of

4. Sequencing genomes of tumor cells identifies many mutations in the genome of tumor cells. However, most mutations in tumors do not drive cancer. Please explain why (1pt) 5. Two…

4. Set1 is a histone methyltransferase that specifically methylates histone H3 a

4. Set1 is a histone methyltransferase that specifically methylates histone H3 at the lysyl residue located at the fourth position (H3K4) within the exposed tail. Set1 can mono-, …

4. Short Answers b), solid vs. A. In a species of mouse, agouti vs. non-agouti f

4. Short Answers b), solid vs. A. In a species of mouse, agouti vs. non-agouti fur (A vs. a), black vs. brown hair color (B vs white-spotted coat (S vs. s) and normal vs. red eyes…

4. Soap has the ability to get rid of stubborn, oily dirt. Why is water alone no

4. Soap has the ability to get rid of stubborn, oily dirt. Why is water alone not efficient for removing oily dirt? Why is warm water better than cold water in removing oily dirt?…

4. Speciation and extinction Aa Aa New species originate in a process called spe

4. Speciation and extinction Aa Aa New species originate in a process called speciation. Scroll through the box, and read about an example of speciation; then answer the questions…

4. Stem cells A) can only be grown from umbilical cord blood B) are best harvest

4. Stem cells A) can only be grown from umbilical cord blood B) are best harvested from adult muscle tissue to get the most flexible cells C) are currently being used to produce a…

4. Study of Toll-like Receptors The late 1990s saw a flurry of research identify

4. Study of Toll-like Receptors The late 1990s saw a flurry of research identifying various TLRs in mammals, and determining their ligands. 4a. What is the ligand for TLR4? It bec…

4. Study of Toll-like Receptors, cont\'d. 4f. In the right part of the left pane

4. Study of Toll-like Receptors, cont'd. 4f. In the right part of the left panel, what do the patterns B « of nitrite production by the 19kD lipoprotein and LPS in TLR2-deficient …

4. Summer squash fruits can be shaped like a disc, a sphere, or a football. The

4. Summer squash fruits can be shaped like a disc, a sphere, or a football. The spherical shape occurs when either of two genes are homozygous recessive. When both genes are homoz…

4. Suppose you do this test on a hypothetical Staphyloccocus species with the an

4. Suppose you do this test on a hypothetical Staphyloccocus species with the antibiotics penicillin (P10) and chloramphenicol (C30). You record zone diameters of 25 mm for the ch…

4. Swelling clays in a shale can provide a warning that slope stability may be a

4. Swelling clays in a shale can provide a warning that slope stability may be a problem or a heaving condition may develop on wetting of the clay ES ON MINERALS pe- l to but inst…

4. Systemic Arteries & Veins of the Body - Use the key below to identify the art

4. Systemic Arteries & Veins of the Body - Use the key below to identify the arteries or veins: Kev: a. brachial d. renal h. phrenic b. celiac trunk c. coronary g. femoral e. …

4. Th ere are two general strategies to fighting a pathogen: innate or acquired

4. Th ere are two general strategies to fighting a pathogen: innate or acquired immunity. Please fill in the following (anything that is in bold) to explain how both mechanisms wo…

4. The ABO blood type is controlled by a single locus, called I, and the human p

4. The ABO blood type is controlled by a single locus, called I, and the human population harbors three alleles: 1', I, and I'. Each individual, of course, only carries two allele…

4. The DNA structure proposed by Watson and Crick suggested a replication model

4. The DNA structure proposed by Watson and Crick suggested a replication model which was tested by Meselson and Stahl. They used nitrogen isotopes to label replicating DNA which …

4. The Hawaiian Islands are composed of linear chains of which of these types of

4. The Hawaiian Islands are composed of linear chains of which of these types of volcano? A. Cinder cones B. Shield volcanoes C. Stratovolcanoes D. Lava domes Rock Types 5. What i…

4. The PBMC CD2+ monocytes (Mo) were found to express other surface markers foun

4. The PBMC CD2+ monocytes (Mo) were found to express other surface markers found on DC (like HLA/MHC proteins), and activate adaptive immune T cells when stimulated with a virus …

4. The San Joaquin Air Pollution Control District (SJAPCD) does not permit burni

4. The San Joaquin Air Pollution Control District (SJAPCD) does not permit burning when it is determined the stability in the lower atmosphere is ______________ (a) Stable; (b) un…

4. The actual molar extinction coefficient for o-nitrophenol has been calculated

4. The actual molar extinction coefficient for o-nitrophenol has been calculated and used to develop a simple formula for calculating -galactosidase activity. This formula is Acti…

4. The amino acid sequence of several leucine zipper proteins are indicated in t

4. The amino acid sequence of several leucine zipper proteins are indicated in the figure below The leucine zipper motif is comprised of a single a-helix. One portion of this ca-h…

4. The amount of surface area in relation to volume would influence how rapidly

4. The amount of surface area in relation to volume would influence how rapidly one chills in an ice bath? Below are the surface to volume ratios of five people to compare. Who wo…

4. The beak color of finches has a complete dominance relationship where black b

4. The beak color of finches has a complete dominance relationship where black beaks are dominant over yellow beaks. There are 210 individuals with the genotype DD, 245 individual…

4. The charge most commonly found on Ca is (insert number). Answer 1: 2 (INCORRE

4. The charge most commonly found on Ca is (insert number). Answer 1: 2 (INCORRECT) 6. One reagent bottle on the shelf in a laboratory is labeled 12M H2SO4 and another is labeled …

4. The diagram below represents an agar plate with 2 holes cut in it, A and B. I

4. The diagram below represents an agar plate with 2 holes cut in it, A and B. If a blue solution containing molecules with a molecular weight of 121.5 was placed in spot A and a …

4. The distributiou coefficients for a compound X, are as follows: Keyelobexauel

4. The distributiou coefficients for a compound X, are as follows: Keyelobexauelwater = 1 .5 Kaliedhyl elieriwater 5.1 enlabe/waler If 100mg of X is in 50 m of water, underline th…

4. The electron transfer chain involves four complexes that each facilitates a c

4. The electron transfer chain involves four complexes that each facilitates a cascade of electron transfers via Redox reactions. a. Identify the substrate (material carrying elec…

4. The enzyme alcohol dehydrogenase (ADH) catalyzes the final step of alcoholic

4. The enzyme alcohol dehydrogenase (ADH) catalyzes the final step of alcoholic fermentation. However, the zyme also occurs in humans and functions under aerobic conditions to oxi…

4. The esophagus is the first organ in the digestive tract that secretes digesti

4. The esophagus is the first organ in the digestive tract that secretes digestive enzymes to begin the chemical (molecular) breakdown of food. Select one: True False 5. Gastric u…

4. The exons and introns of a gene are shown below. Alternative splicing of this

4. The exons and introns of a gene are shown below. Alternative splicing of this gene produces four different mRNA transcripts. All four transcripts utilize the same start codon, …

4. The figure to the right shows normal plasma hormone concentrations during the

4. The figure to the right shows normal plasma hormone concentrations during the female menstrual cycle. 800 600 400 200 What is the peak estrogen and progesterone concentrations?…

4. The following diagram illustrates how the physical states of an air parcel ch

4. The following diagram illustrates how the physical states of an air parcel change when it moves from the windward side to the leeward side of a mountain. Use the knowledge you …

4. The following is a code for a strand of DNA. DNA 3, A T A T TTT 1 2 3 4 5 6 7

4. The following is a code for a strand of DNA. DNA 3, A T A T TTT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 U G A C G U mRNA tRNA Amino Acid ATAT = Promoter sequence a. Usi…

4. The following sequence is found on the template strand of DNA. First, determi

4. The following sequence is found on the template strand of DNA. First, determine the amino acids of the polypeptide encoded by this sequence by using the genetic code. Then give…

4. The fossil evidence indicates that there were once animals living on Earth th

4. The fossil evidence indicates that there were once animals living on Earth that are now extinct, from this evolutionists conclude that animals have changed their form over time…

4. The gal operon in E. coli encodes galactose utilization enzymes that allow th

4. The gal operon in E. coli encodes galactose utilization enzymes that allow the cell to metabolize galactose. Expression of the gal operon includes regulation by the CAP (CRP) p…

4. The graph depicts the reaction of CENTA (substrate) turnover by two different

4. The graph depicts the reaction of CENTA (substrate) turnover by two different B-lactamase enzymes. The final concentration for ADC-7 is 0.7 uM and for AmpC is 0.35 ?M. The Mich…

4. The graph depicts the reaction of CENTA (substrate) turnover by two different

4. The graph depicts the reaction of CENTA (substrate) turnover by two different B-lactamase enzymes. The final concentration for ADC.-Zs 0.7 JM and for AmpCis Menten plot of the …

4. The graphic below depicts changes in the blood plasma concentration of severa

4. The graphic below depicts changes in the blood plasma concentration of several proteins after an infection. (12 pts) 30,100 0,000 700 600 500 400 300 200 100 C-reactive protein…

4. The item \"I often crave excitement\" taps into which of the following NEO 4

4. The item "I often crave excitement" taps into which of the following NEO 4 personality test domains? a. neuroticism b. extraversion c. openness d. agreeableness 5. What is the …

4. The linear bacteriophage lambda genomic DNA has at each end a single-strand e

4. The linear bacteriophage lambda genomic DNA has at each end a single-strand extension of 20 bases. (These are “sticky ends” but are not, in this case, produced by restrictions …

4. The lubber grasshopper is a very large grasshopper, and is black with red and

4. The lubber grasshopper is a very large grasshopper, and is black with red and yellow stripes. Assume that red stripes are expressed from the homozygous RR genotype, yellow stri…

4. The modern day Wilson cycle includes three different stages.... OO (for ocean

4. The modern day Wilson cycle includes three different stages.... OO (for ocean opening); OC (for ocean closing) and CC (for final ocean closed/continental collision) a. What Wil…

4. The outbreak of vCJD in humans in the U.K. is believed to be due to transmiss

4. The outbreak of vCJD in humans in the U.K. is believed to be due to transmission of the BSE agent from contaminated beef. a. How is it possible that the prion agent in contamin…

4. The pRb protien is regulated by covalent modification. Phosphorylation of the

4. The pRb protien is regulated by covalent modification. Phosphorylation of the pRb preents its association with E2F. A. During which phase of the cell cycle is pRb first phospho…

4. The phylogeny below shows: and lemas morkeysmonkysAp (left to right) Zoonar/K

4. The phylogeny below shows: and lemas morkeysmonkysAp (left to right) Zoonar/K. Jorgensen/age fotostock; S Sailer/A Sailer/age Animals Animals-Earth Scenes; FLPA/Jurgen& Chr…

4. The plot below shows %GC content (Y axis) vs DNA melting temperature in Cells

4. The plot below shows %GC content (Y axis) vs DNA melting temperature in Cells(X axis) for various organisms. Refer to the plot to answer questions 4a through 4c below. 100F 80 …

4. The process that some bacteria and lower eukaryotes use that reverses thymine

4. The process that some bacteria and lower eukaryotes use that reverses thymine-thymine dimers in their DNA that has been caused by ultraviolet radiation is called: (1pt) 5. The …

4. The protocol for the VP test requires you to incubate the medium for 48 hours

4. The protocol for the VP test requires you to incubate the medium for 48 hours, then add the two VP reagents and record the results every 10 minutes. A. If you were to incubate …

4. The r strategists are characterized by 5. Mortality is highest during the you

4. The r strategists are characterized by 5. Mortality is highest during the young stages for 6. Animals, such as insects, have in turn coevolved with flowering plants into develo…