Biology and Genetics
101624 questions • Page 1627 / 2033
Two capacitors are in a circuit, connected in parallel as shown in the figure. T
Two capacitors are in a circuit, connected in parallel as shown in the figure. The capacitances are C_1 = 4.4 muF and C_2 = 11/8 muF. The battery carries voltage of DeltaV = 10.8 …
Two cells with different cell-surface markers are fused in the presence of polye
Two cells with different cell-surface markers are fused in the presence of polyethylene glycol (PEG). The cells are then placed at 0°C. What do you expect to observe about the ind…
Two charges, Q1= 2.80 ?C, and Q2= 5.00 ?C are located at points (0,-2.50 cm ) an
Two charges, Q1= 2.80 ?C, and Q2= 5.00 ?C are located at points (0,-2.50 cm ) and (0,+2.50 cm), as shown in the figure. 1) What is the magnitude of the electric field at point P, …
Two charges, Q1= 3.40 C, and Q2= 5.60 C are located at points (0,-3.50 cm ) and
Two charges, Q1= 3.40 C, and Q2= 5.60 C are located at points (0,-3.50 cm ) and (0,+3.50 cm), as shown in the figure. What is the magnitude of the electric field at point P, locat…
Two charges, Q1= 4.00 C, and Q2= 6.90 C are located at points (0,-2.00 cm ) and
Two charges, Q1= 4.00 C, and Q2= 6.90 C are located at points (0,-2.00 cm ) and (0,+2.00 cm), as shown in the figure. What is the magnitude of the electric field at point P, locat…
Two chromosomes separate during gamete formation such that every gamete receives
Two chromosomes separate during gamete formation such that every gamete receives both parental forms of the chromosome Two alleles of a gene separate during gamete formation such …
Two circular rods, both of length L and having the same diameter, are placed end
Two circular rods, both of length L and having the same diameter, are placed end to end between rigid supports with no initial stress in the rods. The coefficient of linear expans…
Two closely related species of fruit fly have the following characteristics: Fly
Two closely related species of fruit fly have the following characteristics: Fly 1: light red eyes, lots of bristles, stripes on the wings Fly 2: dark red eyes, lots of bristles, …
Two codons (CAG and CAA) are used for the amino acid glutamine. (10 points in to
Two codons (CAG and CAA) are used for the amino acid glutamine. (10 points in total) 8. What is the minimal number of tRNA-Gln needed to read these codons? List the anticodon(s) e…
Two color traits of chickens are black, i.e. black colored feathers, and “splash
Two color traits of chickens are black, i.e. black colored feathers, and “splash” in which the bird is mostly white with just a few black feathers. These two traits are due to all…
Two compartments (fig. 1), 1 and 2, are separated by a membrane eg: outside and
Two compartments (fig. 1), 1 and 2, are separated by a membrane eg: outside and inside of a cell). The kinetics of transport through the membrane are studied for a variety of non-…
Two competing species of grass occur in upland and lowland habitats in Minnesota
Two competing species of grass occur in upland and lowland habitats in Minnesotan prairies; their isoclines are depicted on the above (upland on top; lowland on bottom). In both g…
Two competitor companies have been developing novel materials for use in a varie
Two competitor companies have been developing novel materials for use in a variety of sectors (energy, healthcare, aviation, etc.). The materials conduct heat, but the extent of t…
Two compounds are to be separated by liquid-liquid extraction which have identic
Two compounds are to be separated by liquid-liquid extraction which have identical partition coefficients, K_p = 4.0, Compound A, however, is a weak, neutral acid, pK_a = 4.0, suc…
Two compounds both have the chemical formula C_5H_12, yet physical chemists can
Two compounds both have the chemical formula C_5H_12, yet physical chemists can separate them based on their boiling points, which are different. Are these two C_5H_12 compounds l…
Two concepts that are integrated in Shannon\'s diversity are A: the number of sp
Two concepts that are integrated in Shannon's diversity are A: the number of species, called and B: the distribution of species numbers across taxa, called The interface occurring…
Two crosses were made in Neurospora involving the mating type locus and either t
Two crosses were made in Neurospora involving the mating type locus and either the ad or p genes. In both cases, the mating type locus (A or a) was one of the loci whose segregati…
Two curly-winged Drosophila flies are mated and produce an F1 generation that co
Two curly-winged Drosophila flies are mated and produce an F1 generation that consists of 341 curly-winged flies and 162 normal flies. Explain the inheritance pattern involved in …
Two days later the patient reports to the infrmary with a severe headache, stiff
Two days later the patient reports to the infrmary with a severe headache, stiff neck, nausea and a temperature of 103.5 F. What is your diagnosis at this time? (BE SPECIFIC!) A 1…
Two different alleles may code for exactly the same protein because ________. On
Two different alleles may code for exactly the same protein because ________. One of the ways in which new alleles enter a population is when those carrying them join and mate wit…
Two different antigen molecules that occur on the surface of blood cells of wild
Two different antigen molecules that occur on the surface of blood cells of wild-type mice are produced through this biosynthetic pathway. Mice that are homozygous for null mutati…
Two different antigen molecules that occur on the surface of blood cells of wild
Two different antigen molecules that occur on the surface of blood cells of wild-type mice are produced through this biosynthetic pathway. Mice that are homozygous for null mutati…
Two different antigen molecules that occur on the surface of blood cells of wild
Two different antigen molecules that occur on the surface of blood cells of wild-type mice are produced through this biosynthetic pathway. Mice that are homozygous for null mutati…
Two different capacitors have the same plate separation. However, one capacitor
Two different capacitors have the same plate separation. However, one capacitor is made with square plates, while the other if made of circular plates. The square plates have a le…
Two different column leaching tests are devised to evaluate the ability to remed
Two different column leaching tests are devised to evaluate the ability to remediate a site where NAPL contamination has been found. The columns, shown in the figure are flushed w…
Two different column leaching tests are devised to evaluate the ability to remed
Two different column leaching tests are devised to evaluate the ability to remediate a site where NAPL contamination has been found. The columns, shown in the figure are flushed w…
Two different compounds A and B are checked for cell uptake capacity. Two differ
Two different compounds A and B are checked for cell uptake capacity. Two different probes are used: One inside the cell (Probe 1) and the other outside the cell (Probe 2). The pr…
Two different enzymes are able to catalyze the same reaction, A B. They both hav
Two different enzymes are able to catalyze the same reaction, A B. They both have the same Vmax, but differ in their Km for the substrate A. For enzyme X, the Km is 1 mM; for enzy…
Two different enzymes are able to catalyze the same reaction, but differ their K
Two different enzymes are able to catalyze the same reaction, but differ their Kn the substrate A. For enzyme I, the Kin is I ,0 niM; for enzym When enzyme I was incubated with 0.…
Two different female Drosophila were isolated, each heterozygous for the autosom
Two different female Drosophila were isolated, each heterozygous for the autosomally linked genes b (black body), d (dachs tarsus), and c (curved wings). These genes are in the or…
Two different gene loci are responsible for determining mouse coat color. A rece
Two different gene loci are responsible for determining mouse coat color. A recessive lethal allele contributing to yellow coat color also exists for one of these two gene loci. T…
Two different genes are located on the same chromosomal pair in rabbits. A parti
Two different genes are located on the same chromosomal pair in rabbits. A particular female rabbit is heterozygous for alleles of both these genes, with R C C the alleles arrange…
Two different genes are located on the same chromosome, but their exact position
Two different genes are located on the same chromosome, but their exact position in not known. Individual 1 and 2 have the genotypes shown below. The parallel lines represent homo…
Two different genes are located on the same chromosome, but their exact position
Two different genes are located on the same chromosome, but their exact position in not known. Individual 1 and 2 have the genotypes shown below. The parallel lines represent homo…
Two different methods are used for determining the total sugar concentration (gl
Two different methods are used for determining the total sugar concentration (glucose/fructose) in samples. The first method is a DNS Reducing Sugar Assay, which tests for the pre…
Two different mutants, A and B, were isolated from a Gram negative microorganism
Two different mutants, A and B, were isolated from a Gram negative microorganism. The ID50 of mutant A is 100 times higher than the ID50 of the parental (non mutated, wild type) m…
Two different purebred lines of squash have mean fruit sizes of 3 kg and 1 kg re
Two different purebred lines of squash have mean fruit sizes of 3 kg and 1 kg respectively. A cross between these two plants will produce an F1 hybrid that has a mean fruit size o…
Two different strains of a mutant phage infect a single bacterium. One phage str
Two different strains of a mutant phage infect a single bacterium. One phage strain is d–e+ and the other is d+e–. The coinfected phages produce the wild-type phenotype in the bac…
Two different strains of a mutant phage infected a single bacterium. One phage s
Two different strains of a mutant phage infected a single bacterium. One phage strain is d–e+ and the other is d+e–. The co infected phages produced the wild type phenotype in the…
Two diploid species of wheat were crossed to yield a hybrid plant. The resulting
Two diploid species of wheat were crossed to yield a hybrid plant. The resulting hybrid was sterile and could not produce progeny from seed. A cutting was taken and treated with c…
Two dogs with black coat color are bred and produce a litter with black, brown,
Two dogs with black coat color are bred and produce a litter with black, brown, yellow, and sable pups. Which of the following genotypes could the two parental dogs have been? Not…
Two factors serve as the major determinants for how rapidly a neuron is able to
Two factors serve as the major determinants for how rapidly a neuron is able to conduct electrochemical impulses, these include the presence/absence of a myelin sheath along the l…
Two families each have a child with Down syndrome. The empirically observed risk
Two families each have a child with Down syndrome. The empirically observed risk of recurrence is 1 in 100. The first family, with two children older than the affected child, has …
Two features that humans share with at least one other taxonomic level of primat
Two features that humans share with at least one other taxonomic level of primates. Be sure to name the taxonomic level that includes other primates that have this feature. That i…
Two first-order rate constants, K r andK p and one second-order rate constant, K
Two first-order rate constants, Kr andKp and one second-order rate constant, Kfdefine KM by the relationship Km = (Kr+ Kp)/Kf by substituting the appropriate units for the rate…
Two flies that arc both homozygous for the fast allele of alcohol dehydrogenase
Two flies that arc both homozygous for the fast allele of alcohol dehydrogenase are mated (neither has mated previously). They have many homozygous fast offspring and one offsprin…
Two forms of treatment that focus on an individual realizing the consequences of
Two forms of treatment that focus on an individual realizing the consequences of their actions and taking responsibility for them are: A. Behavior modification and reality therapy…
Two friends go for a swim in Tasman Sea in the South Pacific Ocean. While swimmi
Two friends go for a swim in Tasman Sea in the South Pacific Ocean. While swimming they both get stung by Box Jellyfish. One of them dies immediately but other one survives with m…
Two friends in different parts of the world observe solar noon five hours apart.
Two friends in different parts of the world observe solar noon five hours apart. Which pair of coordinates could represent the friends’ locations?: * A) 40°N, 75°W and 51°N, 0° W …
Two fruit bats are crossed in a captive breeding program. It is a testcross invo
Two fruit bats are crossed in a captive breeding program. It is a testcross involving three loci that control for different traits: Fur color (Ff = purple, ff = blue), Ear size (L…
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