Biology and Genetics

1) How may proto-oncogenes become oncogenes? c) mutations or chromosome re-arran

1) How may proto-oncogenes become oncogenes? c) mutations or chromosome re-arrangements that cause over-expression of the proto-oncogenes d) chromosome re-arrangements that cause …

1) How much harder is diamond than topaz? The answer can be found in the second

1) How much harder is diamond than topaz? The answer can be found in the second video. 2) If a rock can be scratched by a copper penny but not fingernail, suggest a plausible hard…

1) How to distinguish between plagioclase and microclain? 2) Explain the composi

1) How to distinguish between plagioclase and microclain? 2) Explain the composition variation of K-Feldspar and albite exsolution lamellae in perthite ? 3) What is the different …

1) How would a missense mutation in the start codon of the orf in the trp leader

1) How would a missense mutation in the start codon of the orf in the trp leader sequence affect expression of the trp operon? 2) Mutations exist in the Trp Repressor gene that re…

1) How would you tell if a rock is crystalline? a. It contains crystals that hav

1) How would you tell if a rock is crystalline? a. It contains crystals that have been cemented together. b. It does not contain crystals at all. c. It contains interlocking cryst…

1) How would you test an unknown solution for: (a) sugar (b)fat (c) starch (d) p

1) How would you test an unknown solution for: (a) sugar (b)fat (c) starch (d) protein? 2) Although pepsin is an enzyme that breaks down protein, a test for peptides is negative. …

1) Human cells normally have 46 chromosomes. For each of the following stages, i

1) Human cells normally have 46 chromosomes. For each of the following stages, indicate the number of genomes, chromosomes, DNA molecules, and copies. Genomes (n) Chromosomes DNA …

1) Human genetic variation across populations is relatively low for a mammal. a)

1) Human genetic variation across populations is relatively low for a mammal.             a) True             b) False 2) Acclimatization refers to which of the following?        …

1) Hunger is increase by activation of the? 2) The set of points is? 3) Anorexia

1) Hunger is increase by activation of the? 2) The set of points is? 3) Anorexia nervosa   is the typically characterized by? 4) Over the past 50 years, women in western cultures …

1) Identify the peaks in the chromatogram in Figure 18.3, using information in t

1) Identify the peaks in the chromatogram in Figure 18.3, using information in the SDS-PAGE gel. 30 pH 6.5 20 10 pH 5.0 20 30 50 40 60 Fraction numbe Activity pH Figure 18.3: Cati…

1) Identify the steps taken in the preparation of a bacterial smear to prevent c

1) Identify the steps taken in the preparation of a bacterial smear to prevent contamination of the culture and yourself working with a bacterial smear? 2) Summarize the "fundamen…

1) If W is the first residue, and there are 18 residues in total, how many amino

1) If W is the first residue, and there are 18 residues in total, how many amino acids are there? How many full turns does the helix make? (Would the answer be 18 amino acids, and…

1) If a 65kg female drinks 500 ml of water, will she induce osmoreceptor activit

1) If a 65kg female drinks 500 ml of water, will she induce osmoreceptor activity? Select one: a. Yes, because there is a 4.4% change in Osmolarity. b. Yes, because there is a 2.4…

1) If a bacterium with a wildtype lac operon is grown in the presence of lactose

1) If a bacterium with a wildtype lac operon is grown in the presence of lactose, high levels of transcription result for a while, however, eventually transcription is again down-…

1) If a mutation caused a seed to lack cotyledons, what would be the effect on t

1) If a mutation caused a seed to lack cotyledons, what would be the effect on the embryo? a) it would lack food source b) it would lack the formative elements for leaves c) it wo…

1) If a toxin gets into an environmental system, who will be the most negatively

1) If a toxin gets into an environmental system, who will be the most negatively impacted accroding to the concept of biomagnification? A) Primary producer B)Primary consumers C) …

1) If an animal completely lacks a body cavity, it would be considered a(n)…. A)

1) If an animal completely lacks a body cavity, it would be considered a(n)…. A) mesoderm B) acoelomate C) pseudocoelomate D) coelomate 2) When the body of an organism is organize…

1) If electrical stimulation of a brain structure results in ananimal\'s eating

1) If electrical stimulation of a brain structure results in ananimal's eating constantly and gaining weight rapidly, thestructure stimulated most likely is the         frontal lo…

1) If excess ADP were artificially introduced into the cytoplasm of a cell, what

1) If excess ADP were artificially introduced into the cytoplasm of a cell, what would the likely effect be? Question 5 options: A:stimulate glycolysis by activating phosphofructo…

1) If the adrenal glands were removed from a patient, his plasma cortisol levels

1) If the adrenal glands were removed from a patient, his plasma cortisol levels would ________, secretion of CRH by the __________________ would __________________, and secretion…

1) If the adrenal glands were removed from a patient, his plasma cortisol levels

1) If the adrenal glands were removed from a patient, his plasma cortisol levels would ________, secretion of CRH by the __________________ would __________________, and secretion…

1) If the climate in an area has very little rainfall, what would the characteri

1) If the climate in an area has very little rainfall, what would the characteristics of the soil in the area be? a. thick, with a lot of organic material c. thick, with very litt…

1) If the index is above 80 it indicates a ______________condition? longheaded r

1) If the index is above 80 it indicates a ______________condition? longheaded roundheaded oval headed short headed 2)Indices are a better comparison method for specimens because?…

1) If the index is taken on a fossil specimen it is a ____ 2) If the index is ta

1) If the index is taken on a fossil specimen it is a ____ 2) If the index is taken on a living specimen it is a ____ _____________ 4) The biological definition of species does no…

1) If the parent cell has 26 chromosomes, how many chromosomes will the each dau

1) If the parent cell has 26 chromosomes, how many chromosomes will the each daughter cell have following meiosis? a. 13 b. 26 c. 52 d. It's impossible to tell 2) A small cell pro…

1) If two loci show a 50% recombination frequency in a two-point test cross, wha

1) If two loci show a 50% recombination frequency in a two-point test cross, what would happen? 2) What would you expect to have happened if Mendel had worked with only partially …

1) If you are going to examine living microorganisms in a yogurtculture, which t

1) If you are going to examine living microorganisms in a yogurtculture, which technique would be most appropriate? A compound light microscope, using prepared slides B compound l…

1) If you begin a flight in Bogotá Colombia destined for Los Angeles, how will t

1) If you begin a flight in Bogotá Colombia destined for Los Angeles, how will the flight path potentially be altered by the Coriolis effect? Explain the essential mechanism of th…

1) If you fenced a plot of land in the savanna so that animals were completely e

1) If you fenced a plot of land in the savanna so that animals were completely excluded ovr time, which type of plant would dominate the plot, according to the diagrams? (A) Grass…

1) If you live in Vermont, you might want to orient your new house so that the b

1) If you live in Vermont, you might want to orient your new house so that the biggest windows face _____________, so you can take advantage of free daylighting. a. West b. North …

1) If you live in an area where the soil id deficient in Iodine, which of the fo

1) If you live in an area where the soil id deficient in Iodine, which of the following glands might suffer? A) thyroid B) Pancreas C) Ovaries D) testes E) Adrenal 2) If you have …

1) If you plated 40,000 cells on a T25 to make a \'\'happy\'\' well. How many ce

1) If you plated 40,000 cells on a T25 to make a ''happy'' well. How many cells do you need to plate in a 6 well plate? How many cells do you need to plate in a 24 well plate? 2) …

1) If you suspect your culture of bacteria has 125 x 106 cells per mL, what woul

1) If you suspect your culture of bacteria has 125 x 106 cells per mL, what would you want the final dilution to be in order to end up with 50 cfu on a plate? 2) A 0.1 dilution is…

1) If you were looking for a gene that codes for a very small protein in the con

1) If you were looking for a gene that codes for a very small protein in the contents of a PCR reaction run out on an electrophoresis gel, where would you look for this small prot…

1) If you were shown an electron micrograph of a section of a cell and were aske

1) If you were shown an electron micrograph of a section of a cell and were asked to identify the cell as plant or animal, one thing you might do is a) look for plastids or riboso…

1) Imagine a root of a cotton plant growing in the upper horizon of an irrigated

1) Imagine a root of a cotton plant growing in the upper horizon of an irrigated soil in California's Imperial Valley. As the root attempts to draw water molecules from this soil,…

1) Imagine that a pharmaceutical company, specifically the research and developm

1)    Imagine that a pharmaceutical company, specifically the research and development division, just hired you. Your first assignment consists of developing a new anticancer drug…

1) Immunostaining. Using anti-zip8 for cell staining, what does it stain? 2) how

1) Immunostaining. Using anti-zip8 for cell staining, what does it stain? 2) how do we visualize and analyize results while performing cell staining with DAPI and anti-zip8? What …

1) In Drosophila , curledwings ( cu ) and ebony body ( e ) are recessivetraits t

1)      In Drosophila, curledwings (cu) and ebony body (e) are recessivetraits that are produced by two genes that are 16 cM apart onchromosome 3. A female fly that is heterozygou…

1) In Eukaryotic cells, Glycolysis occurs in the __________, Pyruvate Oxidation

1) In Eukaryotic cells, Glycolysis occurs in the __________, Pyruvate Oxidation and the Citric Acid Cycle occur in the ________, and the electron transport chain is in the _______…

1) In Nature, can a population of organisms grow exponentially indefinitely? Bri

1) In Nature, can a population of organisms grow exponentially indefinitely? Briefly explain your answer. (1 points) Briefly state at least two principals of Darwin's theory of na…

1) In a different plant species from the example given, flower color is controll

1) In a different plant species from the example given, flower color is controlled by two genes that contribute equally to pigmentation in the final flower color. The more "R" all…

1) In a fetal pig the _______________covers the skin 2) The water vascular syste

1) In a fetal pig the _______________covers the skin 2) The water vascular system in echinodermata develops from____________germ layer 3) Spiracles/tracheae are__________________i…

1) In a given organism, exposure to a hormonal signal (e.g. epinephrine) trigger

1) In a given organism, exposure to a hormonal signal (e.g. epinephrine) triggers different responses in different tissues, and some tissues show no response at all. Which of the …

1) In a population of racoons, the frequency of allele A is 0.9 and the frequenc

1) In a population of racoons, the frequency of allele A is 0.9 and the frequency of allele a is 0.1. Calculate the expected Hardy-Weinberg equilibrium genotypic frequencies. Show…

1) In a population of racoons, the frequency of allele A is 0.9 and the frequenc

1) In a population of racoons, the frequency of allele A is 0.9 and the frequency of allele a is 0.1. Calculate the expected Hardy-Weinberg equilibrium genotypic frequencies. Show…

1) In a survey of a population of a certain species of field rodent, the followi

1) In a survey of a population of a certain species of field rodent, the following data was collected: Black hair (genotype B,B) 18 - Brown hair (genotype B,B)-62 Yellow hair (gen…

1) In a survey of a population of a certain species of field rodent, the followi

1) In a survey of a population of a certain species of field rodent, the following data was collected: Black hair (genotype B,B)-18 - Brown hair (genotype B,B)-62 Yellow hair (gen…

1) In a triploid of genotype B/b/b, what proportion of gametes will be bb? 2) A

1) In a triploid of genotype B/b/b, what proportion of gametes will be bb? 2) A woman is found to be karyotypically 47, X0 (Turner Syndrome). The absence of a secod sex chromosome…

1) In addition to general transcription factors, ________. Mark the correct answ

1) In addition to general transcription factors, ________. Mark the correct answer(s). a.various TATA boxes act in concert to bind specific activators and/or repressors thus regul…