Flashcards
Unit 3 - Mitosis and Molecular Genetics
Flashcards do conjunto (30)
- 1In which stage are individual chromosomes first present?Anaphase
- 2In what stage of mitosis are sister chromatids formed?Prophase
- 3In mRNA the As attatch to...U
- 4Single Ring BasesCytosine and Thymine
- 5Double ring basesGuanine and Adenine
- 6Double Ring family of bases are calledPurines
- 7Single Ring family of bases are calledPyrimidines
- 8What did Chargoff's rule state?#A=#T
#C=#G - 9What is a nucleotide made of?Phosphate group - inorganic
Deoxyribose (Sugar)
Nitrogenous base -organic - 10How is the Sugar-Phosphate 'backbone' bonded?Covalently
- 11What are the rungs of the 'ladder' held by?The nitrogenous bases A-T and C-G
- 12What type of bond is inbetween AT and CG, and why is it important?Hydrogen
Easier to break than covalent bonds - 133 steps involved in cell replicationUnwind, unzip, replicate
- 14What tells the DNA to unwind, unzip, and replicate?Enzymes
- 15Definition of GeneSegment of DNA that codes for a proteinDefi
- 16Definition of ChromosomeTightly packed DNA, molecule of DNA that contains many genes
- 17Relationship between DNA, genes, and chromosomesChromosomes consist of segments of DNA (genes) that code for various proteins
- 18The two main functions of DNAReplication and Protein Synthesis
- 19CodonGroup of 3 nitrogenous bases that codes for an amino acid
- 20Nitrogenous base for DNAThymine
- 21The nitrogenous base for RNAUracil
- 22Definition of Binary Fission + ExamplesForm of reproduction where two identical daughter cells are produced, with no parent after division.
Example: bacteria - 23Definiton of Budding + ExamplesThe bud that reproduces is usually smaller than the parent. The parent still exists after bud forms.
Examples of this:
Yeast and Hydra - 24Regeneration Definition and ExamplesReplacement of a lost body part, that sometimes results in reproduction.
Examples: Starfish, Lizards, Planaria(worm) - 25Go and G1 Phase in Cell CycleGrowth and preparation to copy DNA
- 26"S" in the Cell CycleDNA replication occurs (S - Synthesis)
- 27G2 Phase in the Cell CycleGrowth and preparation for division
- 28"M" in the Cell CycleMitosis. Your cell is actively dividing.
- 29Purpose of MitosisGrowth, Repair, Asexual Reproduction
- 30—