Answers to Exam 2 multiple choice and TF questions
... 8. T F If the mechanism that normally senses tension across two sister chromatids (in metaphase of mitosis) is defective, then the products of mitosis of a 2n cell may end up with copies of both the maternal and paternal homolog. Second part of statement does not follow logically from the first as t ...
... 8. T F If the mechanism that normally senses tension across two sister chromatids (in metaphase of mitosis) is defective, then the products of mitosis of a 2n cell may end up with copies of both the maternal and paternal homolog. Second part of statement does not follow logically from the first as t ...
Set 2
... gametes (reproductive cells that have only one role - to join with another gamete during reproduction). The male gametes are called sperm cells, and the female gametes are called egg cells (ova). During mating, the sperm cell and the egg cell unite to form a fertilized combination of cells called a ...
... gametes (reproductive cells that have only one role - to join with another gamete during reproduction). The male gametes are called sperm cells, and the female gametes are called egg cells (ova). During mating, the sperm cell and the egg cell unite to form a fertilized combination of cells called a ...
Big ideas in life science and biology - Science
... Living things change over time as a result of natural mutations that occur in their genomes and the process of natural selection, and ...
... Living things change over time as a result of natural mutations that occur in their genomes and the process of natural selection, and ...
RG 11 - Regulation of Gene Expression
... 23. What is a Barr body? How is a Barr body an example of genetic inactivation by chromatin structure? 24. Define epigenetic inheritance. 25. Define genetic imprinting. Section 11.4 – Post Transcriptional Control of Gene Expression 26. List the various modifications that must be made to an mRNA befo ...
... 23. What is a Barr body? How is a Barr body an example of genetic inactivation by chromatin structure? 24. Define epigenetic inheritance. 25. Define genetic imprinting. Section 11.4 – Post Transcriptional Control of Gene Expression 26. List the various modifications that must be made to an mRNA befo ...
Basic Biochemistry Practice Quiz
... What are the examples of trace elements given in class? 7. List the example(s) of polar molecules given in class. List the example(s) of nonpolar molecules 8. Using the following example from the periodic table, identify the atomic number and atomic weight and define what each is. What element is th ...
... What are the examples of trace elements given in class? 7. List the example(s) of polar molecules given in class. List the example(s) of nonpolar molecules 8. Using the following example from the periodic table, identify the atomic number and atomic weight and define what each is. What element is th ...
Name __________ Introduction: People with diabetes require extra
... and often can carry proteins which cause allergic reactions. Recently, scientists have perfected a method to combine the human gene for insulin with bacterial DNA. This type of DNA is called recombinant DNA. Once the gene for insulin is combined with the bacterial DNA, the bacteria can then produce ...
... and often can carry proteins which cause allergic reactions. Recently, scientists have perfected a method to combine the human gene for insulin with bacterial DNA. This type of DNA is called recombinant DNA. Once the gene for insulin is combined with the bacterial DNA, the bacteria can then produce ...
Elements Made of carbon, hydrogen, oxygen, nitrogen and
... regulating other proteins carrying out chemical reactions (enzymes) ...
... regulating other proteins carrying out chemical reactions (enzymes) ...
Molecules of Life Powerpoint
... • A fourth class of lipids is the waxes, each of which is composed of a single fatty acid linked to a long-chain alcohol. • Waxes have an important “sealing” function in the living world. • Almost all plant surfaces exposed to air, for example, have a protective covering made largely of wax. ...
... • A fourth class of lipids is the waxes, each of which is composed of a single fatty acid linked to a long-chain alcohol. • Waxes have an important “sealing” function in the living world. • Almost all plant surfaces exposed to air, for example, have a protective covering made largely of wax. ...
Unit: 2
... 4. The building blocks of DNA are called ___________________, which have 3 parts: _________________________, ___________________________, _______________________________. 5. What makes up the “rungs” of the DNA ladder? 6. What does DNA stand for? 7. If a DNA strand, AATCTGG, is replicated, what woul ...
... 4. The building blocks of DNA are called ___________________, which have 3 parts: _________________________, ___________________________, _______________________________. 5. What makes up the “rungs” of the DNA ladder? 6. What does DNA stand for? 7. If a DNA strand, AATCTGG, is replicated, what woul ...
Characterisation of DNA by Agarose Gel Electrophoresis and
... amino acid sequence during protein biosynthesis which is called translation. Contrary to the doublestranded DNA RNA is a single-stranded macromolecule where the deoxyribose is substituted by ribose and the base thymine by uracil. The steric arrangement of the single nucleotides in the DNA and its co ...
... amino acid sequence during protein biosynthesis which is called translation. Contrary to the doublestranded DNA RNA is a single-stranded macromolecule where the deoxyribose is substituted by ribose and the base thymine by uracil. The steric arrangement of the single nucleotides in the DNA and its co ...
DNA-independent ATPase activity of the Trichoplusia ni
... decreased substantially in the presence of TnGV and λ DNAs (Fig. 2 B). One possibility is that the decreased activity was due to the sequestration of Mg#+ by viral DNA. Another possible explanation is that rP137 binds DNA, but upon binding, additional host- or TnGV-encoded protein(s) not present in ...
... decreased substantially in the presence of TnGV and λ DNAs (Fig. 2 B). One possibility is that the decreased activity was due to the sequestration of Mg#+ by viral DNA. Another possible explanation is that rP137 binds DNA, but upon binding, additional host- or TnGV-encoded protein(s) not present in ...
Eukaryotic Gene Expression Practice Problems Class Work 1
... 1. Explain the central dogma of cell biology. 2. What is gene expression? 3. Transcription is the process of copying a sequence of DNA into a complementary strand of RNA. Number the events of transcription in order: ______RNA polymerase attaches at the promoter sequence on DNA ______ The new RNA str ...
... 1. Explain the central dogma of cell biology. 2. What is gene expression? 3. Transcription is the process of copying a sequence of DNA into a complementary strand of RNA. Number the events of transcription in order: ______RNA polymerase attaches at the promoter sequence on DNA ______ The new RNA str ...
Eukaryotic Gene Expression Practice Problems Class Work 1
... 1. Explain the central dogma of cell biology. 2. What is gene expression? 3. Transcription is the process of copying a sequence of DNA into a complementary strand of RNA. Number the events of transcription in order: ______RNA polymerase attaches at the promoter sequence on DNA ______ The new RNA str ...
... 1. Explain the central dogma of cell biology. 2. What is gene expression? 3. Transcription is the process of copying a sequence of DNA into a complementary strand of RNA. Number the events of transcription in order: ______RNA polymerase attaches at the promoter sequence on DNA ______ The new RNA str ...
lec-02-transcript
... is cleaved into smaller double stranded DNA segments which serve as the template for synthesis of new DNA strands. The segments then reassemble into complete DNA double helices, with parental and daughter DNA segments interspersed. The content of parental DNA in the double helix decreases with each ...
... is cleaved into smaller double stranded DNA segments which serve as the template for synthesis of new DNA strands. The segments then reassemble into complete DNA double helices, with parental and daughter DNA segments interspersed. The content of parental DNA in the double helix decreases with each ...
chapt13_image
... • Germ-line mutations occur in sex cells and can be passed to subsequent generations • Somatic mutations occur in body cells and affect only a small number of cells in a tissue • Somatic mutations are not passed on to future generations, but can lead to cancer • Spontaneous mutations are associated ...
... • Germ-line mutations occur in sex cells and can be passed to subsequent generations • Somatic mutations occur in body cells and affect only a small number of cells in a tissue • Somatic mutations are not passed on to future generations, but can lead to cancer • Spontaneous mutations are associated ...
Genetic Engineering - fhs-bio
... DNA is taken from one or more of these sources, chemically cut into segments and the segments are sorted by length in a gel using electrophoresis Segments contain specific sequences of repeating base pairs that are variable from person to person (VNTR) Segments are tagged radioactively and form ...
... DNA is taken from one or more of these sources, chemically cut into segments and the segments are sorted by length in a gel using electrophoresis Segments contain specific sequences of repeating base pairs that are variable from person to person (VNTR) Segments are tagged radioactively and form ...
Gene Mutations
... • A gene may have a mutation rate of “1.4 x10-5” What exactly does this number mean? (from class) • What are the molecular mechanisms by which mutations arise in the DNA? What can happen during DNA replication? Recombination, chemically? • What is the difference between transitions and transversions ...
... • A gene may have a mutation rate of “1.4 x10-5” What exactly does this number mean? (from class) • What are the molecular mechanisms by which mutations arise in the DNA? What can happen during DNA replication? Recombination, chemically? • What is the difference between transitions and transversions ...
O - Faculty Web Pages
... • A gene may have a mutation rate of “1.4 x10-5” What exactly does this number mean? (from class) • What are the molecular mechanisms by which mutations arise in the DNA? What can happen during DNA replication? Recombination, chemically? • What is the difference between transitions and transversions ...
... • A gene may have a mutation rate of “1.4 x10-5” What exactly does this number mean? (from class) • What are the molecular mechanisms by which mutations arise in the DNA? What can happen during DNA replication? Recombination, chemically? • What is the difference between transitions and transversions ...
Heredity
... GLE 0507.4.2 Recognize that some characteristics are inherited while others result frominteractions with the environment. 0507.4.1 Explain how genetic information is transmitted from parents to offspring 0507.4.2 Create a chart that compares hereditary and environmental traits. 0507.4.3 Distinguish ...
... GLE 0507.4.2 Recognize that some characteristics are inherited while others result frominteractions with the environment. 0507.4.1 Explain how genetic information is transmitted from parents to offspring 0507.4.2 Create a chart that compares hereditary and environmental traits. 0507.4.3 Distinguish ...
Deoxyribozyme
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Deoxyribozymes, also called DNA enzymes, DNAzymes, or catalytic DNA, are DNA oligonucleotides that are capable of catalyzing specific chemical reactions, similar to the action of other biological enzymes, such as proteins or ribozymes (enzymes composed of RNA).However, in contrast to the abundance of protein enzymes in biological systems and the discovery of biological ribozymes in the 1980s,there are no known naturally occurring deoxyribozymes.Deoxyribozymes should not be confused with DNA aptamers which are oligonucleotides that selectively bind a target ligand, but do not catalyze a subsequent chemical reaction.With the exception of ribozymes, nucleic acid molecules within cells primarily serve as storage of genetic information due to its ability to form complementary base pairs, which allows for high-fidelity copying and transfer of genetic information. In contrast, nucleic acid molecules are more limited in their catalytic ability, in comparison to protein enzymes, to just three types of interactions: hydrogen bonding, pi stacking, and metal-ion coordination. This is due to the limited number of functional groups of the nucleic acid monomers: while proteins are built from up to twenty different amino acids with various functional groups, nucleic acids are built from just four chemically similar nucleobases. In addition, DNA lacks the 2'-hydroxyl group found in RNA which limits the catalytic competency of deoxyribozymes even in comparison to ribozymes.In addition to the inherent inferiority of DNA catalytic activity, the apparent lack of naturally occurring deoxyribozymes may also be due to the primarily double-stranded conformation of DNA in biological systems which would limit its physical flexibility and ability to form tertiary structures, and so would drastically limit the ability of double-stranded DNA to act as a catalyst; though there are a few known instances of biological single-stranded DNA such as multicopy single-stranded DNA (msDNA), certain viral genomes, and the replication fork formed during DNA replication. Further structural differences between DNA and RNA may also play a role in the lack of biological deoxyribozymes, such as the additional methyl group of the DNA base thymidine compared to the RNA base uracil or the tendency of DNA to adopt the B-form helix while RNA tends to adopt the A-form helix. However, it has also been shown that DNA can form structures that RNA cannot, which suggests that, though there are differences in structures that each can form, neither is inherently more or less catalytic due to their possible structural motifs.