Biology and Genetics

1. A grad student has a culture of E. coli with a total volume of 1,800 mL, and

1. A grad student has a culture of E. coli with a total volume of 1,800 mL, and OD reading at 550 nm of 1.7. He transfers 1 mL culture into 9 mL tryptone broth. Next, he transfers…

1. A grad student has a culture of E. coli with a total volume of 1,800 mL, and

1. A grad student has a culture of E. coli with a total volume of 1,800 mL, and CD reading at 550 nm of 1.7. He transfers 1 mL culture into 9 mL tryptone broth. Next, he transfers…

1. A graduate student studying a 350 base pair molecule of DNA found that 20% of

1. A graduate student studying a 350 base pair molecule of DNA found that 20% of these nucleotides were adenine. How many nucleotides were Guanine? Cytosine? Thymine? Uracil? Expl…

1. A greenhouse experiment was set up in which a series of pots were placed on a

1. A greenhouse experiment was set up in which a series of pots were placed on a tabletop. Each pot contained a similar soil mixture and three bean seedlings of the same size. A t…

1. A group of DNA nucleotides that codes for a single amino acid is a: · promote

1. A group of DNA nucleotides that codes for a single amino acid is a: ·       promoter ·       gene ·       codon 2. Unlike what Mendel observed in his pea plants, which were eit…

1. A group of researchers investigated the effect of a drug call pressure why on

1. A group of researchers investigated the effect of a drug call pressure why on lowering blood pressure in a group of men between the ages of 50 and 70 years old. The researchers…

1. A group of scientists is working with a type of skin cancer (melanoma) cells

1. A group of scientists is working with a type of skin cancer (melanoma) cells that can be grown in culture. These cells divide without control and form overlapping cell layers (…

1. A group of volunteers are planning a dinner to raise money for a charity. The

1. A group of volunteers are planning a dinner to raise money for a charity. They have excellent relations with the chair of the fund-raising committee. They want the dinner to be…

1. A hamster gamete cell has 22 chromosomes. How many DNA strands will be found

1. A hamster gamete cell has 22 chromosomes. How many DNA strands will be found in the nuclei of its skin cells in G2 phase? A. 44 B. 88 C. 11 2. Which of the following occurs dur…

1. A heart attack occurs when there is a blockage in the coronary arteries that

1.    A heart attack occurs when there is a blockage in the coronary arteries that bring blood to the muscle cells in the heart. If the blockage is bad enough, the heart muscle ce…

1. A human somatic cell contains _____. a. 45 autosomes and 1 sex chromosome b.

1. A human somatic cell contains _____. a. 45 autosomes and 1 sex chromosome b. 21 autosomes and 2 sex chromosomes c. 44 autosomes and 2 sex chromosomes d. n chromosomes e. 22 aut…

1. A hurdler trips over a hurdle, falls on her hands, and stands up screaming an

1. A hurdler trips over a hurdle, falls on her hands, and stands up screaming and holding her forearm. The lower third of her forearm is angled oddly and twisted down. She has tin…

1. A hypothetical model for polygenic inheritance of flower lobe number in Linan

1. A hypothetical model for polygenic inheritance of flower lobe number in Linanthus was presented in class. According to this model, alleles at three separate loci (A,a; B,b; C,c…

1. A lactating mother wants to breastfeed but she has a short-term prescription

1. A lactating mother wants to breastfeed but she has a short-term prescription for antibiotics that have been shown to cross into breast milk and that could affect her baby. What…

1. A lettuce grower has noticed that over the past two decades, he has had to us

1. A lettuce grower has noticed that over the past two decades, he has had to use more applications of pesticide per season in order to achieve the same crop quality. What is this…

1. A linear region of land with many shallow earthquakes. There is little to no

1. A linear region of land with many shallow earthquakes. There is little to no active volcanism. Mountains are generally not present or only exist as gentle hills. Select one: a.…

1. A loading dose of norepinephrine, in the form of norepinephrine bitartrate, i

1. A loading dose of norepinephrine, in the form of norepinephrine bitartrate, is 0.01 mg/min administered by IV infusion. If a total of 282 milliliters of a norepinephrine soluti…

1. A long section of The Origin of Species describes the breeding of pigeons and

1. A long section of The Origin of Species describes the breeding of pigeons and how pigeon breeders have produced many shapes, sizes, and colors of pigeons, all starting from a c…

1. A long section of The Origin of Species describes the breeding of pigeons and

1. A long section of The Origin of Species describes the breeding of pigeons and how pigeon breeders have produced many shapes, sizes, and colors of pigeons, all starting from a c…

1. A loop or needle is sterilized by inserting it to a Bunsen burner until it is

1. A loop or needle is sterilized by inserting it to a Bunsen burner until it is red hot. This will a. coagulate any contaminating organisms that may be present b. incinerate any …

1. A major glacial erosional process is plucking. This process occurs when: rock

1. A major glacial erosional process is plucking. This process occurs when: rock flour is deposited into glacial lakes resulting in a turquoise color of water bodies in glaciated …

1. A man who has type O blood fathers offspring with a woman who has type AB blo

1.   A man who has type O blood fathers offspring with a woman who has type AB blood. Their first child, a girl, has type A blood. What would be the probability that their SECOND …

1. A man with Type 2 diabetes is receiving a combination of oral drugs to mainta

1. A man with Type 2 diabetes is receiving a combination of oral drugs to maintain glycemic control. He becomes hypoglycemic one afternoon and ingests some orange juice and two ch…

1. A man with Type A blood has children with a woman with Type B blood. However,

1. A man with Type A blood has children with a woman with Type B blood. However, the genotypes of the man and woman are not known. a) List the possible phenotypes and genotypes of…

1. A man with insulin-dependent diabetes is brought to the emergency room in a n

1. A man with insulin-dependent diabetes is brought to the emergency room in a near-comatose state. While vacationing in an isolated place, he lost his insulin medication and has …

1. A meteorite with a composition similar to Earth’s mantle is called a. iron me

1. A meteorite with a composition similar to Earth’s mantle is called a. iron meteorite b. Stony-iron meteorite c. tektite d. Chondrite e. Achondrite 2. A meteorite with a composi…

1. A microbial growth medium designed to encourage the growth of one type of org

1. A microbial growth medium designed to encourage the growth of one type of organism and inhibit the growth of others is called a ___________________ medium. 2. Three major types…

1. A micrococcal nuclease digestion experiment was performed on chromatin from t

1. A micrococcal nuclease digestion experiment was performed on chromatin from two different lines of Drosophilia. Both fly lines contain the same transgene (a piece of DNA that h…

1. A micrococcal nuclease digestion experiment was performed on chromatin from t

1. A micrococcal nuclease digestion experiment was performed on chromatin from two different lines of Drosophilia. Both fly lines contain the same transgene (a piece of DNA that h…

1. A mixture of 95% ethanol and 5% water has a lower boiling point than either p

1. A mixture of 95% ethanol and 5% water has a lower boiling point than either pure water or pure ethanol. Why is it impossible to obtain pure (absolute) ethanol by distillation o…

1. A mixture of acids is made that has 0.0500M HNO3 and 0.0300M HC2H3O2. The Ka

1. A mixture of acids is made that has 0.0500M HNO3 and 0.0300M HC2H3O2. The Ka for HC2H3O2 is 1.8x10^-5. Solve for the pH of the mixture of acids. 2. Determine the pH of a soluti…

1. A mother brings her infant son to your pediatric clinic, complaining that he

1. A mother brings her infant son to your pediatric clinic, complaining that he is acting lethargic. You examine the child and find that he is severely underweight for his age and…

1. A mother with type A blood and a father with type B have children with type A

1. A mother with type A blood and a father with type B have children with type AB, type O, and type B. This pedigree can be explained by: A. Epistasis B. Independent assortment C.…

1. A mountain has an elevation of 19,000 feet. The air at 6,000 feet on the wind

1. A mountain has an elevation of 19,000 feet. The air at 6,000 feet on the windward side has a temperature of 70° in early spring, and condensation takes place at 10,000 feet. Gi…

1. A mutation occurs in the chromosome of a bacterium that is infecting a patien

1. A mutation occurs in the chromosome of a bacterium that is infecting a patient in a hospital. The mutation makes the cell resistant to the particular antibiotic that is being u…

1. A mutation occurs in the chromosome of a bacterium that is infecting a patien

1. A mutation occurs in the chromosome of a bacterium that is infecting a patient in a hospital. The mutation makes the cell resistant to the particular antibiotic that is being u…

1. A mutation that causes a change in a single nucleotide in DNA A. will have no

1. A mutation that causes a change in a single nucleotide in DNA A. will have no effect on the resulting protein. B. causes the codon to be correct, but the anticodon to be incorr…

1. A negative correlation coefficient means a.Nothing, a mistake has been made.

1. A negative correlation coefficient means a.Nothing, a mistake has been made. b.There is no relationship between two variables. c.As one variable tends to increase or become lar…

1. A negligence action was brought by a mother on beh minor daughter against a h

1. A negligence action was brought by a mother on beh minor daughter against a hospital. It alleged that wher of her was 13 years of age, the hospital negligently transfused ther …

1. A neuron can have consecutive action potentials (one right after the next) wi

1. A neuron can have consecutive action potentials (one right after the next) without a break in between. Select one: True False 2. Depression can be treated with medications that…

1. A neuron is said to e polartand A. The action potential can avel in one direc

1. A neuron is said to e polartand A. The action potential can avel in one direction only B. The soma is always at one end of the eell C. There is a difference in electrical poten…

1. A neurotransmitter of the sympathetic division of the nervous system that inc

1. A neurotransmitter of the sympathetic division of the nervous system that increases the heart rate and constricts smooth muscle in blood vessels to raise blood pressure in the …

1. A new combination insecticide/herbicide called Toxicon was just released, and

1.   A new combination insecticide/herbicide called Toxicon was just released, and it is used to control populations of the pest insect, the European corn borer, and invasive plan…

1. A new sustainable business and industry co-op to help new companies develop i

1. A new sustainable business and industry co-op to help new companies develop is expanding in Paris. They are especially concerned about environmental sustainability. Wanting to …

1. A non-self substance that triggers an immune response is referred to as a(n):

1. A non-self substance that triggers an immune response is referred to as a(n): Answer: 2. Bacterial growth slows down when someone has a fever because the fever causes the liver…

1. A non-steroid hormone acts through second messenger systems. a. True b. False

1. A non-steroid hormone acts through second messenger systems. a. True b. False 2. Up-regulation of hormone receptors means the individual has decreased sensitivity to that hormo…

1. A null repressor mutation (I-) in the lac regulatory system results in a. ind

1. A null repressor mutation (I-) in the lac regulatory system results in a. inducible transcription. b. constitutive transcription. c. no transcription. d. transcription but no t…

1. A number of herbicides have PS II or PS I as targets and interfere with the n

1. A number of herbicides have PS II or PS I as targets and interfere with the normal steps in the exchange of reduced electron carriers between PS II + PS I + cytochrome bf. One …

1. A nurse is caring for a client who is undergoing a course of chemotherapy. Sh

1. A nurse is caring for a client who is undergoing a course of chemotherapy. She is reporting severe nausea and vomiting and has lost 9 lb. since her last course of chemotherapy.…

1. A one-day old female newborn was referred to your hospital with complaints of

1. A one-day old female newborn was referred to your hospital with complaints of seizures and multiple congenital abnormalities. You conduct both a physical examination and a labo…