Telomere shortening - Study guides, Class notes & Summaries

Origin of replication Site where the replication of a DNA molecule begins on a chromosome, consisting of a specific sequence of nucleotides. Bacteria only have one, eukaryotes have many. Replication fork/bubble - A Y-shaped point that results when the two strands of a DNA double helix separate so that the DNA molecule can be replicated - Single fork in Prokaryotic cells - 100s of forks in Eukaryotic cells - Replication will proceed in both directions (form a bubble) Semiconservative replicatio...

If cells are grown in a medium containing radioactive 32P-labeled phosphate, which molecules will be labeled? Nucleic Acids If a double-stranded DNA sample were composed of 10 percent thymine, what would be the percentage of guanine? 40 If one strand of a DNA molecule has the sequence of bases 5'ATTGCA3', the other complementary strand would have the sequence _____. 5'TGCAAT3' A bacterium is infected with an experimentally constructed bacteriophage composed of the T2 phage protein coat an...

Neoplasia Part 4, UTHSC Fall 2022 D2 Pathology Resisting Cell Death or Evasion of Programmed Cell Death - Cell death by apoptosis as a protective response to several pathologic conditions that might contribute to malignancy if the cells remained viable. - Biochemical pathways leading to apoptosis - Cancer cells present mutations in the genes that regulate apoptosis What three interrelated factors are critical to the immortality of cancer cells? - Self-renewal - Evasion of senescence - Ev...

Neoplasia Part 4, UTHSC Fall 2022 D2 Pathology Resisting Cell Death or Evasion of Programmed Cell Death - Cell death by apoptosis as a protective response to several pathologic conditions that might contribute to malignancy if the cells remained viable. - Biochemical pathways leading to apoptosis - Cancer cells present mutations in the genes that regulate apoptosis What three interrelated factors are critical to the immortality of cancer cells? - Self-renewal - Evasion of senescence - Ev...

BIOD_152_Final_Exa m Correct Answer Replication of DNA begins at a single origin of replication and then proceeds the entire length of the strand, in one direction (T/F) False What enzyme is responsible for relieving the stress associated with the twisting and untwisting of a DNA strand during replication. Topoisomerase As a replicated DNA strand elongates, what enzyme is responsible for adding nucleotides? DNA polymerase The energy required to add a nucleotide to a growing chain is s...

Green River College: BIOL 100 Unit 3 Notes Latest Updated Chapter 6: Energy for life Learning Objectives: 1. Identify the cellular structure where photosynthesis occurs and describe its function. 2. State the overall chemical equation for photosynthesis. 3. Recognize what is meant by the terms reduction and oxidation. 4. Describe the function of photosynthetic pigments. 5. Explain the flow of electrons in the light reactions. 6. Explain how ATP and NADPH are generated in the light reac...

BIOD_152_Final_Exa m Correct Answer Replication of DNA begins at a single origin of replication and then proceeds the entire length of the strand, in one direction (T/F) False What enzyme is responsible for relieving the stress associated with the twisting and untwisting of a DNA strand during replication. Topoisomerase As a replicated DNA strand elongates, what enzyme is responsible for adding nucleotides? DNA polymerase The energy required to add a nucleotide to a growing chain is s...

Detailed lecture notes explaining what is cellular senescence, what triggers senescence, what are the properties of a senescent cell, and whether senescence is causative/driving ageing.

Genetics Exam 3 Practice Test 50 Questions with Verified Answers Gene conversion results from A. Discontinuous replication B. Photoreactivation C. Mismatch repair D. Gap Repair E. C and D - CORRECT ANSWER E. C and D The picture below is two Holliday junctions in a pair of DNA molecules undergoing recombination Breakage and rejoining of the strands indicated by the arrows () and () results in crossover. A. 1 and 2 B. 2 and 3 C. 3 and 4 - CORRECT ANSWER B. 2 and 3 In eukaryoti...

Replication of DNA begins at a single origin of replication and then proceeds the entire length of the strand, in one direction (T/F) - correct answer False What enzyme is responsible for relieving the stress associated with the twisting and untwisting of a DNA strand during replication. - correct answer Topoisomerase As a replicated DNA strand elongates, what enzyme is responsible for adding nucleotides? - correct answer ...