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1. In humans most cancers are caused byA) UV radiationB) dietary fatC) X-raysD) tobacco2. A DNA microarray is used toA) detect the location of genesB) visualize patterns of gene expressionC) isolate mRNAD) initiate transcription3. In a multicellular organism cells in one area of the body may regulate gene expression in a distant cell by secretion ofA) antibodiesB) hormonesC) repressor moleculesD) RNA polymerases4. Which of the following cells is LEAST differentiated?A) adult stem cellsB) muscle cellsC) nerve cellsD) embryonic stem cells5. The nucleus of an intestinal cell of a tadpole (baby frog) is transferred to an egg whose nucleus has been removed (nuclear transplantation); some of the eggs will develop into normal tadpoles. This demonstratesA) that intestinal cells are not differentiatedB) that frogs have large eggsC) that differentiated cells have retained all of their genetic potentialD) that intestinal cells are embryonic stem cells6. All of the cells in your body have the same complete set of DNA, however, they have different functions becauseA) they contain different chromosomesB) different genes are switched on and off in each type of cellC) they contain different operonsD) they contain different sets of genes7. Regions of noncoding DNA within a gene are calledA) exonsB) oncogenenesC) transcription factorsD) introns8. The tumor-suppressor gene is important in the prevention of cancer because itA) contains multiple promoters for over expressionB) produces gene products that prevent uncontrolled cell growthC) provides protection from cancer-producing virus infectionD) stimulates production of an oncogene9. A genetic defect in humans results in the absence of sweat glands. Some men express this defect all over their bodies but in women it is usually expressed differently. A woman with this defect typically has small patches of skin with sweat glands and other patches without. This pattern of sweat gland distribution can best be explained byA) X chromosome inactivationB) a mutationC) a homeotic geneD) alternative RNA splicing10. The DNA segment that acts as a switch for turning the lac operon off or on is theA) promoterB) regulatory geneC) lactose genesD) operator
Propose two ways the photosynthesis process be improved. If the sequence TCGTA was used as a template in DNA replication, what will the sequence of bases be on the newly synthesized strand.
As a Nursing student in Advanced Human Anatomy, you were able to observe a total hip replacement. While the O.R. personnel where prepping the patient for the surgical procedure.
Assume you are researching flower genetics. You find a plant with a blue flower and another with a white flower.When you mate them, they have many offspring.
Assume you review a young patient in the emergency room who is complaining of ankle pain following a soccer game. The patient shows to you that an accident resulted in his foot being forced into an excessively inverted position.
If the first genes were made of RNA, why do most organisms today have genes made of DNA?
Describe the hierarchical 3D arrangement of DNA in a chromosome. How many molecules of DNA are there in a chromosome.
Suppose after washing your hands, you leave ten bacterial cells on the new bar of soap. You next decide to do a plate count of the soap after it is left in the soap dish for 24 hours. You dilute 1g of the soap 1:10 and plate it on a standard plate co..
There is a hybridization event between two different species with the same chromosome number. The hybrids are sterile. Explain your answer.
The ABO blood group assorts independently of the Rhesus (Rh) blood group and the MN blood group. Three alleles, IA , IB , and i, occur at the ABO locus.
Your response should contain approximately 250-300 of your own words. Provide a reference citation for your source material.
You preformed gel electrophoresis on your PCR amplified DNA samples, your sample and both of the controls that contained theplant master mix had bands around 455 bp
q1. comparisons of amino acid sequences can shed light on evolutionary divergence of related species. would you expect
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