Liberty University BIOL 101 Quiz 4 Complete Solutions Correct Answers Key

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Liberty University BIOL 101Quiz 4 Complete Solutions Correct Answers KeyMore than two versionsWhich of the following is not a role of the ribosome or its subunits?Which of the following sequences best represents the overall flow of information in a cell?Which of the following decisions is essential to a recombinant DNA project?The two major problems that transcription solves for the cell areThe structure of DNA was unraveled usingOnce the protein release factor enters the ribosome, other releasing factors enter as well. Theribosome responds by coming apart and releasing the new protein. This process is calledA three-dimensional, folded molecule shaped like an “L” with an anticodon at one end and anamino acid attachment site at the other end:Biological information must exist becauseIn the translation process, tRNA molecules are also called “adapter” molecules. Why? Whatis their function?Which of the following is part of tRNA's role in translation?DNA was discovered by Friederick Miescher; he isolated it fromDNA contains two chains of nucleotides in which ______ and ______ alternate in supportingeach chain structurally.Which of the following phrases best describes the role of mRNA in gene expression?The main difference between a germ cell and a somatic cell is that the somatic cellThere are more than four kinds of amino acids in proteins. Each kind of amino acid must becoded for in mRNA. Thus, a short sequence of mRNA bases called a(n) _________ is used tocode for each amino acid in the translation process.A useful, isolated gene can be inserted into a human cell of choice byIn human history mutations havePeptide bonds are formed during the __________ stage of translation.When the organism expresses a set of genes, the result is the characteristics of that organism.These characteristics are called itsIn the process of transcription, the base sequence in the molecule _______ is read by themolecule _________ , an enzyme that makes an RNA molecule.

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A ribosome is best described asA retrovirus can be altered so that it can take foreign DNA into a host cell. It is altered byIn order to elongate mRNA, RNA polymerase mustThe same “gene” can be used to code for two different proteins in two different tissues of thebody of the same organism. How is this possible?PCR isolates one DNA sequence away from many others byWhich of the following is not true of the ligase moleculeConsider a picture of a DNA molecule.What would be different about the DNA doublehelix’s width if occasionally adenine paired with guanine and cytosine paired with thymine?Why is the word “translation” used for protein production?Protein production is theprocessofWhat is one value of degeneracy in the genetic code?In bacterial (prokaryotic) cells, the front end of a strand of mRNA can begin translation on aribosome while the tail end is still being transcribed by RNA polymerase.How is thispossibleWhich of the following is not involved at all in making a glycoproteinIf part of a DNA strand’s base sequence reads–GGTACCTA--what mRNA base sequencewould be transcribed from that DNA sequenceWhat are two structural differences between a ribonucleotide and a deoxyribonucleotideIn what way is information expression in a cell superior to that in building construction?If you were asked to isolate from a genomic library the structural gene that codes for aspecific protein, what would be a good strategy for beginning to search for the gene?Why were cancer-causing retroviruses chosen for development of a way of getting DNA intoWhich of the following is not a description of PCRWhich of the following is not a step in a typical gene therapy studyWhat would a ribosome do with the following mRNA sequence?_____________ is a disease state characterized by cells that divide uncontrollably and nolonger respect their confinement within their tissue of origin.An oncogene is a mutated form of a gene that normally directsWhich of the following tissues would not be observed in the root of a plant?

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The term morphogenesis refers to that process in whichCelldivisioninunicellularlifeformsresultsin__________whilecelldivisioninmulticellular life forms facilitates _________.The purpose of cytokinesis is toWhich of the following structural changes occurs during prophase of mitosis?The unique feature of meristem tissue is that it isA dominant control over the endocrine system in mature human adults is exerted by theA sequence of human cell divisions accompanied by some growth and cell differentiationconvert an early ___________ into a hollow ball of cells called a _________.Sensory and motor functions in the mature human adult are controlled by theWhich of the following is not a phase of the cell cycle?Successful differentiation of early brain regions requires that cells destined to form theseregionsWhichofthefollowingtermswouldnotbeusedtodescribeanaspectofthethreedimensional adult form?What purpose does the process of mitosis serve?A Gingko biloba haploid ova nucleus and a sperm nucleus combine in a process known as_______ within the structure known as ___________.Genes that normally direct the inhibition of cell division regulatory pathways are calledWhen DNA is replicated, the two strands are first separated through _________; each strandthen becomes a _________ against which two new strands are made.Vesicles containing cell wall materials fuse together to form new cell wall during the processofHeart rate and respiratory inhalation rate functions in the mature human adult are controlledby theMoving ahead with cell division is controlled by the interaction ofJohn Gurdon transplanted a nucleus from a differentiated toad cell into a toad egg lacking itsown functional nucleus. How did this work demonstrate genomic potency?In humans, the process of gastrulation gives rise to a “three primary tissue” structure of theembryo. Gastrulation is a product of

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Hans Spemann advanced the theory of embryonic induction based on his observation thatThe transformation of chromatin to chromosomes is necessary prior to cell division becauseIn yeast a new cell is often reproduced by growing attached to the maternal cell.Thisreproductive process is calledThe phase of mitosis in which the chromatin begins to condense and thechromosomesWhich of the following is true regarding either the G0or the G1-phases of the cell cycleWhich type of tissue is not found in plantsA morula is made up ofWhich of the following statements is true regarding the DNA replication bubbleA newly forming budding yeast cell can get energy directly fromWhen plant cells divide, instead of using a cleavage furrow or contractile ring to separate thenew daughter cells the plant cellHow does an organism develop from one cell to a complete organism?The microtubules which attach to the centromere region of each chromosome are calledIn forming long distance high to low concentration gradients, how do auxin molecules geWhen a stem cell in your bone marrow differentiates into a specific cell type (like a red bloodcell instead of a white blood cell or a platelet)The pituitary gland has direct roles in the __________ and ____________systems.Much of your digestive system is lined with cells from the endodermal primary germlayer.Regions of your mouth and anal area are lined with cells from the ectodermal primarygerm layer.How might the mesodermal primary germ contribute to the structure of thedigestive system?Cells multiply by undergoing division. Choose the statement below which helps explain howthis paradox works itself out in a multicellular organism

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