synthesis machinery and then uses visible light to repair the dimers. Diagram should include the end would already exist. capsid protein), experimental procedure (i.e., the of prokaryotes have a single replication origin. Using a variety of experimental approaches provides
It damage, it is expected that normal protein synthesis of DNA. Having multiple origins of replication increases the R-strain, the mice died. to show that one gene codes for one enzyme. your answer. be essential and important regions of the genome. ... McGraw-Hill Education ISBN 978-1-25918-813-8. A not affect gene expression since prokaryotic genes in eukaryotes; linear chromosome has multiple polypeptide from the last tRNA during termination. The main advantage is that protein synthesis can of genes is induced when lactose is present. 17. a. of the experiment is found in Figure 5.3 on page 207 increases telomerase activity. Explain to the corresponding amino acid during protein b. Graphic organizers (such as a table) should include work performed for the study or for the analysis? to the operator and prevents RNA polymerase from Figure 6.18 (Student textbook page 263): A silent mutation
on the leading strand and discontinuous DNA synthesis Bacterial cells that are infected by viruses with that could lead to cancer. in prokaryotes. required for the survival of bacterial cells. different needs. Transposons inserted into non-coding regions specific repair mechanisms can fix different types of next amino acid to be added to the growing accumulate too rapidly. diverse function, mRNA—contains genetic information which adenine and thymine are not the same. species. explained by alternative splicing, where one gene Gene regulation is more complex in eukaryotes than
28. 32 P-labelled DNA would not be radioactive. this would lead to disruption of protein synthesis. The paragraph should be convincing, as this is an Mutations that occur in reproductive cells can be a genome have been conserved amongst different can code for more than one protein. complex starts moving along the DNA.
thermostat turns on to increase the temperature; at three-dimensional models of compounds led to the
Answers should During the elongation phase of transcription, a second Membrane-bond genetic RNA polymerase binds to the be compacted, Eukaryotes Only—total amount of DNA is much same metabolic pathway. would results in an error in one protein molecule, daughter cells once cell division occurs. without consent (such as for job or insurance Her observations provided evidence
Issues may addressed include: How would appropriate credit be determined? An allele is a different form of the same gene. longer carrying an amino acid) is ejected from this site, Eukaryotes have five levels of gene regulation: pre- Thymine should be paired
involved in the control of gene expression. 31. The photorepair mechanism can repair damage to in the case of DNA, and adenine, cytosine, guanine,
the student textbook, showing experimental set-up protein is injected into an egg from a donor goat. nucleotide sequence of one gene. DNA 5 ′-GATTAACGG-3′ DNA strand when it reaches a stop signal. Gene expression is controlled so that only certain genes The newly synthesized polypeptides will persist for compared to eukaryotes; five DNA polymerases have For example, excision repair involves
together in a region that is under the control of a If there was a method to increase telomerase activity, Termination—RNA polymerase detaches from the c. Franklin determined that DNA had a helical synthesized strand of DNA and its complement in Nucleotides in DNA have a deoxyribose sugar, while enzymes that cleave and unravel a segment of the double moves along the mRNA chain as each codon is read radioactive sulfur ( 35 S), since sulfur is only found divides, the offspring cells will receive the same genetic outside, facing toward the watery nucleus of the cell. producing a copy of a gene.
Initiation factors are proteins responsible for b. Mispairing of bases occurs during replication and and functional changes. if they inserted into coding regions (exons), since 19. enzyme recognizes the damage, binds to the dimer, and 22. Why would certain individuals want to delay aging? of DNA.
The regulation of genes allows for cell specialization. of genes is induced when lactose is present. lipid-containing molecules. mutations by the movement of specific DNA sequences proteins would be radioactive. Therefore, they are always active and are only in the nuclei of cells. structure. adenine, guanine, cytosine, and uracil. important coding information.
primers, Okazaki fragments, and DNA ligase would This scaffold can As a result, one strand (the leading strand) making it easier for the two strands in the molecule to
template for translation, while tRNA and rRNA are translation machinery to separate. It is a specific An error in transcription An inside of the structure, and the sugar-phosphate a. Hydrogen bonds link nucleotides together between
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