Origin of replication ori - Study guides, Class notes & Summaries

PSS 3421 Final Exam Questions & Answers 2024/2025 Cite evidence that DNA is carrier of heredity - ANSWERSHersey and Chase Radioactive viruses. RESULTS: DNA carried hereditary info by transfer of viral DNA to bacteria causing formation of new viruses. Proteins on the other hand did not structures of DNA - ANSWERSRibose, sugar, 4 nucleic acids Key steps for replication - ANSWERSReplication began from a single origin of replication (Ori). DNA strands are coiled around each other, and wi...

Chromosomes CORRECT ANSWER a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes. Plasmids CORRECT ANSWER small circular DNA molecules that replicate separately from the bacterial chromosome Eukaryotic genomes are _____% contained in nuclear chromosomes and _____% extra nuclear DNA CORRECT ANSWER 95% & 5% replicaiton steps CORRECT ANSWER 1.Remove proteins 2.Unwind and separate template strands e...

Abiogenesis - The process of life originating from inanimate (lifeless) matter by natural causes All forms of life grouped into these 3 domains - Archaea Bacteria Eukarya Amyloplasts - A type of leucoplast Colorless plastids that store starch, a product of photosynthesis Anaphase - Sister chromatids separate and move to opposite spindle poles Movement continues until the separated chromatids are now called daughter chromosomes Anchoring belts - form belts that run entirely around cells ...

BIOL 1P91 Exam Review Questions With Answers | Updated Chromatids - ANSWER One half of a replicated chromosome. Each chromatid contains one double helix of DNA. binary fission - ANSWER A form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size, Prokaryotic cell division—splitting or dividing into two parts Nucleoid - ANSWER The central region of a prokaryotic cell with no boundary membrane separating it from the cytoplasm, ...

BIOL 1P91 Exam Review Questions With Answers | Updated Chromatids - ANSWER One half of a replicated chromosome. Each chromatid contains one double helix of DNA. binary fission - ANSWER A form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size, Prokaryotic cell division—splitting or dividing into two parts Nucleoid - ANSWER The central region of a prokaryotic cell with no boundary membrane separating it from the cytoplasm, ...

Pyrimidine - Answer- one carbon ring Cytosine, Thymine, Uracil Purine - Answer- two carbon rings Adenine, Guanine How are nucleotides joined together? - Answer- condensation What does mRNA do? - Answer- carries code out of cell. code for protein structure. DNA to ribosomes end of transcription start of translation What does tRNA do? - Answer- decodes mRNA. Matches amino acids to mRNA code. Protein synthesis What does rRNA do? - Answer- part of ribosome structure most abund...

Vertical transmission - Answer parent to offspring Horizontal transmission - Answer transfer of small pieces of DNA from one cell to another Fredrick Griffith - Answer - Studies Streptococcus pneumoniae in mice -Hypothesized that the bacteria could "transfer information" to each other Describe the complete Griffith experiment - Answer -S leads to host death -R strains are not fatal -Prekilling S strains prevent illness -Killed S plus live R is fatal Conjugation - Answer Horizon...

BIOL 1P91 Exam Review Questions With Answers | Updated Chromatids - ANSWER One half of a replicated chromosome. Each chromatid contains one double helix of DNA. binary fission - ANSWER A form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size, Prokaryotic cell division—splitting or dividing into two parts Nucleoid - ANSWER The central region of a prokaryotic cell with no boundary membrane separating it from the cytoplasm, ...

Chapter 12: The Cell Cycle (Mitosis) Questions and Answers Graded A+ What are the three key roles of cell division? State each role and give an example Reproduction: an amoeba single celled eukaryote divides into two cells. Growth+Development: fertilized egg divides into two cells, beginning embryo formation. Tissue Renewal: dividing bone marrow will give rise to new blood cells What is meant by the cell cycle? the life of a cell from the time it's first formed from a dividing parent cell unt...

BIOL 1P91 Exam Review Questions With Answers | Updated Chromatids - ANSWER One half of a replicated chromosome. Each chromatid contains one double helix of DNA. binary fission - ANSWER A form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size, Prokaryotic cell division—splitting or dividing into two parts Nucleoid - ANSWER The central region of a prokaryotic cell with no boundary membrane separating it from the cytoplasm, ...