Biology and Genetics
101624 questions • Page 1787 / 2033
Why does the DNA double helix have a uniform diameter? A) Nucleotides bind with
Why does the DNA double helix have a uniform diameter? A) Nucleotides bind with nucleosides. B) Purines pair with pyrimidines. C) Deoxyribose sugars bind with ribose sugars. D) C …
Why does the EPA encourage environmental auditing? What are some typical inspect
Why does the EPA encourage environmental auditing? What are some typical inspection items for a solid waste disposal facility? Include what environmental law or act is associated …
Why does the core of the Sun contain more helium and less hydrogen than the surf
Why does the core of the Sun contain more helium and less hydrogen than the surface of the Sun? Select one: a. The hydrogen has been lifted out of the core by the Sun's magnetic f…
Why does the deamination of cytosine to uracil not cause a problem in the next r
Why does the deamination of cytosine to uracil not cause a problem in the next round of DNA replication? A) Although uracil cannot form the third hydrogen bond to guanine, it is r…
Why does the excretion of nitrogenous wastes from protein metabolism present a s
Why does the excretion of nitrogenous wastes from protein metabolism present a special problem in water conservation? Briefly contrast the osmoregulatory challenges of metabolic w…
Why does the oxidation of organic compounds (for example fatty acids and glucose
Why does the oxidation of organic compounds (for example fatty acids and glucose) to CO2 and H2O release energy? Question 6 options: A) CO2 and H2O are high energy products of oxi…
Why does the plant invest so much energy in reproduction? A. reproduction is an
Why does the plant invest so much energy in reproduction? A. reproduction is an evolutionary artifact; plants no longer need to invest as much energy but they still have not lost …
Why does the variation of phenotypic traits often have a continuous distribution
Why does the variation of phenotypic traits often have a continuous distribution? Because phenotypic traits are a result of dominance interactions Because phenotypic traits are no…
Why does the variation of phenotypic traits often have a continuous distribution
Why does the variation of phenotypic traits often have a continuous distribution? a. Because phenotypic traits are a result of dominance interactions b. Because phenotypic traits …
Why does urine in people with uncontrolled diabetes mellitus smell sweet? Becaus
Why does urine in people with uncontrolled diabetes mellitus smell sweet? Because more ADH is present, therefore concentrating glucose in the urine. Because the loop of Henle is l…
Why doesn\'t Earth have large volcanoes like those on Mars? On Earth, plate tect
Why doesn't Earth have large volcanoes like those on Mars? On Earth, plate tectonics doesn't allow lava to build up in one location over a hot spot. Earth’s biggest volcanoes have…
Why doesn\'t the US burn municipal waste? Do you think that it is possible to pu
Why doesn't the US burn municipal waste? Do you think that it is possible to put enough scrubbers on the stacks so that the emissions would be clean? What do you think? What is mu…
Why doesn’t the epistatic or interactive variance of a phenotype contribute to i
Why doesn’t the epistatic or interactive variance of a phenotype contribute to its response to selection? a. this variance is neutral with respect to fitness b. this variance is d…
Why doesn’t the epistatic or interactive variance of a phenotype contribute to i
Why doesn’t the epistatic or interactive variance of a phenotype contribute to its response to selection? a. this variance is neutral with respect to fitness b. this variance is d…
Why don\'t alleles from linked genes assort independently, if no crossing over o
Why don't alleles from linked genes assort independently, if no crossing over occurs? Crossing over is random, so the closer genes are on the chromosome, the less likely crossing …
Why don\'t cells last the entire lifetime of an organism? a) The repeating telom
Why don't cells last the entire lifetime of an organism? a) The repeating telomeric sequence of TTAGGG interferes with normal DNA replication and leads to cell death. b) The remov…
Why happens to primers in the forward and reverse direction during PCR? Select o
Why happens to primers in the forward and reverse direction during PCR? Select one: O a. Only the forward primer, but not the reverse primer, hybridize with the template DNA O b. …
Why has Earth remained habitable throughout history? A. Because chemical weather
Why has Earth remained habitable throughout history? A. Because chemical weathering of continental rocks both responds to and modifies the level of CO2 greenhouse gases in the atm…
Why has enzyme replacement therapy not been as effective for lysosomal storage d
Why has enzyme replacement therapy not been as effective for lysosomal storage disorders that affect brain tissue? The enzymes can't get across the blood brain barrier. the enzyme…
Why has it been so difficult for researchers to develop effective antivirals for
Why has it been so difficult for researchers to develop effective antivirals for HIV? because the virus is able to produce DNA as an intermediate in viral replication because HIV …
Why has it been so difficult to reach international agreements on Climate Policy
Why has it been so difficult to reach international agreements on Climate Policy issues? In particular, why did it become so contentious to arrive at agreements on air quality sta…
Why has the ability to produce flowers allowed certain plant taxa to become very
Why has the ability to produce flowers allowed certain plant taxa to become very successful? Flowers increase the likelihood that seeds are dispersed All of these Plants use their…
Why have biologists hypothesized that the first land plants had a low, sprawling
Why have biologists hypothesized that the first land plants had a low, sprawling growth habit? a. They were tied to the water for reproduction and thus needed to remain in close c…
Why have no true-breeding tailless Manx cats been found? How could you determine
Why have no true-breeding tailless Manx cats been found? How could you determine if the tailless phenotype is penetrant? untg in purplé èyes when homozygous. A female with Bar but…
Why is Earth\'s interior so hot? Why would soils that predominate in clay tend t
Why is Earth's interior so hot? Why would soils that predominate in clay tend to be infertile? Identify the three kinds of cyclonic storms (name them). Rome, Italy has the locatio…
Why is Galileo Regio, the large circular feature on Ganymede, so dark? A) It is
Why is Galileo Regio, the large circular feature on Ganymede, so dark? A) It is composed of dense basaltic mantle rock that once flowed like lunar mare B) It is the result of micr…
Why is Mcrcury difficult to obaerve? It is very dim it is always near the Sun in
Why is Mcrcury difficult to obaerve? It is very dim it is always near the Sun in the sky It is usually on the other side of the Sun from the Earth 45. It never rises until after m…
Why is Mercury difficult to observe It is very dim It is always near the Sun in
Why is Mercury difficult to observe It is very dim It is always near the Sun in the sky It is usually on the other side of the Sun from the Earth It never rises until after midnig…
Why is R eingle base deleli mutation within Protein-coding ly to hamful asingle
Why is R eingle base deleli mutation within Protein-coding ly to hamful asingle base-nsi a: top codon. Thi cau earty termination of the polypeptide chain and almost always results…
Why is RNA thought to have been the first genetic material? All of these It can
Why is RNA thought to have been the first genetic material? All of these It can act as a catalyst/enzyme It has been found in fossils from the early earth It can help form primiti…
Why is SDS used in the electrophoresis of proteins? a. SDS coats the protein wit
Why is SDS used in the electrophoresis of proteins? a. SDS coats the protein with a negative charge so that the sample can run through the gel. b. SDS is a specific protease that …
Why is SDS used in the electrophoresis of proteins? a. SDS coats the protein wit
Why is SDS used in the electrophoresis of proteins? a. SDS coats the protein with a negative charge so that the sample can run through the gel. b. SDS is a specific protease that …
Why is Tm related to base composition? (Hint: Tm refers to temperature of meltin
Why is Tm related to base composition? (Hint: Tm refers to temperature of melting A. The fewer hydrogen bonds between bases, The higher the temperature needed to separate the pair…
Why is \"semiconservative\" an appropriate description for the DNA replication p
Why is "semiconservative" an appropriate description for the DNA replication process? What is the product of transcription? What is the function of this molecule? List the three t…
Why is a angle base pair deletion mullion within prelim coding sequence more aio
Why is a angle base pair deletion mullion within prelim coding sequence more aioli to be harmful than base per change muleteer? Single base-pair deletions make amino acid sequence…
Why is a bipedal ancestor an important concept when trying to understand the evo
Why is a bipedal ancestor an important concept when trying to understand the evolution of birds? It freed up the front limbs so that they could potentially take on new functions s…
Why is a cold pool collocated with a mesohigh at the surface? The rain falling i
Why is a cold pool collocated with a mesohigh at the surface? The rain falling into the cold pool pushes the air together. The increased density of the colder air causes the thick…
Why is a mutated single copy of a tumor-suppressor gene expected to behave as a
Why is a mutated single copy of a tumor-suppressor gene expected to behave as a recessive gene? a.Recessive mutations are more difficult for DNA repair machinery to correct than d…
Why is a plasmid vector necessary in introducing a foreign gene into E.Coli in o
Why is a plasmid vector necessary in introducing a foreign gene into E.Coli in order to purify the protein?
Why is a protein’s conformation important for carrying out its function? What pr
Why is a protein’s conformation important for carrying out its function? What properties of the amino acids in a protein relate to protein folding? Does the eluate containing your…
Why is a protein’s conformation important for carrying out its function? What pr
Why is a protein’s conformation important for carrying out its function? What properties of the amino acids in a protein relate to protein folding? Does the eluate containing your…
Why is a protein’s conformation important for carrying out its function? What pr
Why is a protein’s conformation important for carrying out its function? What properties of the amino acids in a protein relate to protein folding? Does the eluate containing your…
Why is a type individual considered a universal blood donor? A type O individual
Why is a type individual considered a universal blood donor? A type O individual does not produce the antigenic A or B oligosaccharides and hence, can donate blood to any recipie…
Why is administration of supplemental arginine recommended for this infant? Why
Why is administration of supplemental arginine recommended for this infant? Why were pyridoxine and alpha-keto analogs of essential amino acids administered? dietary protein restr…
Why is an enzyme considered a catalyst? Give two characteristics of catalysts. W
Why is an enzyme considered a catalyst? Give two characteristics of catalysts. What is an active site? What is a substrate? What is a product? Describe how enzymes facilitate che…
Why is anaerobic respiration energetically less if efficient then aerobic respir
Why is anaerobic respiration energetically less if efficient then aerobic respiration? The aerobic respiration process uses a respiratory electron transport chain, while anaerobic…
Why is aseptic technique necessary when working in the laboratory? In addition t
Why is aseptic technique necessary when working in the laboratory? In addition to bacteria, what types of microorganism do you expect to find in the environment ? What was the tem…
Why is calcium necessary for muscle contraction? Calcium is needed to detach the
Why is calcium necessary for muscle contraction? Calcium is needed to detach the myosin from the actin. Calcium is needed to activate troponin so that tropomyosin can be moved to …
Why is calcium necessary for muscle contraction? Calcium is needed to detach the
Why is calcium necessary for muscle contraction? Calcium is needed to detach the myosin from the actin. Calcium is needed to activate troponin so that tropomyosin can be moved to …
Why is careful planning so important to HMIS implementation?11–3.With respect to
Why is careful planning so important to HMIS implementation?11–3.With respect to HMIS staffing, what are some of the major concerns for HMIS planners?11–4.Describe some useful too…
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