Flashcards
Cells
Flashcards do conjunto (23)
- 1Size and shape of DNA molecule?*Bigger than most Molecules
*Double Spiral or Double Helix - 2Where is DNA Located?In the Nucleus
- 3What are the steps of Protein Synthesis?*Transcription-in the nucleus
*Translation- In ribosome site - 4How is cytoplasm produced?By protein Synthesis
- 5What is mitosis?the process of organizing and distributing nuclear DNA during cell division
- 6what are the 4 phases of mitosis ?*Prophase-Nuclear envelope falls apart.
*Metaphase-cells line up along equator
*Anaphase- chromosomes are pulled toward nearest pole.
*Telophase-cells rebuild the nuclear envelope. - 7Two major phases of cell life cycle?*Cell Growth
*Cell reproduction(mitosis occurs) - 8What is included in cell growth?* Protein Synthesis>Interphase
*DNA Replication>Interphase - 9What is included in cell reproduction?*Mitosis or Meiosis>M Phase
*Cytokinesis>M Phase - 10What phase does DNA occur?S Phase
- 11What Does Normal Mitosis Results In?Cells that are identical to parent cells
- 12Chromosomes move to opposite ends of the cells Through?Anaphase
- 13Diploid has how many chromosomes?46
- 14Not a characteristic of meiosis?two haploid gamete
- 15Meiotic cell division occurs in ?Primitive sex cells
- 16why is meiosis call reduction division?size of chromosomes reduce by half
- 17what is a result of meiosis?4 Daughter Cells
- 18What is a nucleotide?compound formed combining phosphoric acid w/sugar and a nitrogenous base
- 19How many Nucleotides does DNA have?4
- 20What are the Purine Bases?Adenine & quanine
- 21What are the Pyrimidine Bases?Cytosine & thymine
- 22What are the bases pairings?*Adenine always goes with Thymine
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* Guanine always goes with Cytosine - 23What is a polyribosome?An Identical copy of the encoded polypeptide