Solved Assignments

Liberty University BIOL 101 Quiz 4 Complete Solutions Correct Answers Key

Biology
Liberty University
14 pages
Shared May 2025

A quiz solution for BIOL 101 at Liberty University.

Preview 5 of 14 pages

See the first 5 pages exactly as they appear in the document.

Page 1
Read page 1 as text
Liberty University BIOL 101 Quiz 4 Complete Solutions Correct Answers Key More than two versions Which 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 are The structure of DNA was unraveled using Once the protein release factor enters the ribosome, other releasing factors enter as well. The ribosome responds by coming apart and releasing the new protein. This process is called A three - dimensional, folded molecule shaped like an “L” with an anticodon at one end and an amino acid attachment site at the other end: Biological information must exist because In the translation process, tRNA molecules are also called “adapter” molecules. Why? What is their function? Which of the following is part of tRNA's role in translation? DNA was discovered by Friederick Miescher; he isolated it from DNA contains two chains of nucleotides in which ______ and ______ alternate in supporting each 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 cell There are more than four kinds of amino acids in proteins. Each kind of amino acid must be coded for in mRNA. Thus, a short sequence of mRNA bases called a(n) _________ is used to code for each amino acid in the translation process. A useful, isolated gene can be inserted into a human cell of choice by In human history mutations have Peptide 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 its In the process of transcription, the base sequence in the molecule _______ is read by the molecule _________ , an enzyme that makes an RNA molecule.
Page 2
Page 3
Read page 3 as text
A ribosome is best described as A retrovirus can be altered so that it can take foreign DNA into a host cell. It is altered by In order to elongate mRNA, RNA polymerase must The same “gene” can be used to code for two different proteins in two different tissues of the body of the same organism. How is this possible? PCR isolates one DNA sequence away from many others by Which of the following is not true of the ligase molecule Consider a picture of a DNA molecule. What would be different about the DNA double helix’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 the process of What 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 a ribosome while the tail end is still being transcribed by RNA polymerase. How is this possible Which of the following is not involved at all in making a glycoprotein If part of a DNA strand’s base sequence reads – GGTACCTA -- what mRNA base sequence would be transcribed from that DNA sequence What are two structural differences between a ribonucleotide and a deoxyribonucleotide In 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 a specific 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 into Which of the following is not a description of PCR Which of the following is not a step in a typical gene therapy study What would a ribosome do with the following mRNA sequence? _____________ is a disease state characterized by cells that divide uncontrollably and no longer respect their confinement within their tissue of origin. An oncogene is a mutated form of a gene that normally directs Which of the following tissues would not be observed in the root of a plant?
Page 4
Read page 4 as text
The term morphogenesis refers to that process in which Cell division in unicellular life forms results in __________ while cell division in multicellular life forms facilitates _________. The purpose of cytokinesis is to Which of the following structural changes occurs during prophase of mitosis? The unique feature of meristem tissue is that it is A dominant control over the endocrine system in mature human adults is exerted by the A sequence of human cell divisions accompanied by some growth and cell differentiation convert an early ___________ into a hollow ball of cells called a _________. Sensory and motor functions in the mature human adult are controlled by the Which of the following is not a phase of the cell cycle? Successful differentiation of early brain regions requires that cells destined to form these regions Which of the following terms would not be used to describe an aspect of the threedimensional 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 called When DNA is replicated, the two strands are first separated through _________; each strand then becomes a _________ against which two new strands are made. Vesicles containing cell wall materials fuse together to form new cell wall during the process of Heart rate and respiratory inhalation rate functions in the mature human adult are controlled by the Moving ahead with cell division is controlled by the interaction of John Gurdon transplanted a nucleus from a differentiated toad cell into a toad egg lacking its own functional nucleus. How did this work demonstrate genomic potency? In humans, the process of gastrulation gives rise to a “three primary tissue” structure of the embryo. Gastrulation is a product of
Page 5
Read page 5 as text
Hans Spemann advanced the theory of embryonic induction based on his observation that The transformation of chromatin to chromosomes is necessary prior to cell division because In yeast a new cell is often reproduced by growing attached to the maternal cell. This reproductive process is called The phase of mitosis in which the chromatin begins to condense and the chromosomes Which of the following is true regarding either the G 0 or the G 1 - phases of the cell cycle Which type of tissue is not found in plants A morula is made up of Which of the following statements is true regarding the DNA replication bubble A newly forming budding yeast cell can get energy directly from When plant cells divide, instead of using a cleavage furrow or contractile ring to separate the new daughter cells the plant cell How does an organism develop from one cell to a complete organism? The microtubules which attach to the centromere region of each chromosome are called In forming long distance high to low concentration gradients, how do auxin molecules ge When a stem cell in your bone marrow differentiates into a specific cell type (like a red blood cell 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 germ layer. Regions of your mouth and anal area are lined with cells from the ectodermal primary germ layer. How might the mesodermal primary germ contribute to the structure of the digestive system? Cells multiply by undergoing division. Choose the statement below which helps explain how this paradox works itself out in a multicellular organism