10726505
Description
Flashcards by Courtney Sampson, updated more than 1 year ago
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Created by Courtney Sampson
about 8 years ago
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| Question | Answer |
| how many stages in prokaryotic cell reproduction are there and what are they | 2. 1) Replication - Copying the DNA 2) Binary Fission - split the cell in 2 |
| what is it called when a prokaryotic cell copies it's DNA | replication |
| what is it called when a prokaryotic cell splits itself into 2 daughter cells | binary fission |
| what does a prokaryotes DNA look like | a small circle of DNA |
| what is the point called at which the unzipping of the double stranded DNA occurs at | Origin of Replication |
| Do prokaryotic cells have sexual reproduction | NO... Binary fission |
| Do eukaryotic cells have sexual reproduction | YES |
| what are the 3 reproductive mechanisms that bacteria use | 1) conjugation 2) transformation 3) transduction |
| explain conjugation reproductive mechanisms | this is where bacteria acquire their DNA from other bacteria through pili |
| explain transformation reproductive mechanism | this is where bacteria acquire their DNA from their surroundings |
| explain transduction reproductive mechanism | this is where bacteria acquire their DNA from viruses |
| Which of the following is the process of bacteria transferring DNA directly through a pilus? 1. Conjugation 2. Transduction 3. Transformation | 1. Conjugation |
| Which of the following is the process of bacteria acquiring DNA from a virus? 1) Conjugation 2) Transduction 3) Transformation | 2) Transduction |
| how many chromosomes do humans have | 46 |
| what structure is eukaryotic cell's DNA in | a linear structure |
| what are the 2 different mechanisms that eukaryotic cells undergo to divide their DNA | Mitosis and Meiosis |
| what cells does Mitosis occur in | somatic cells |
| what cells does Meiosis occur in | germ cells |
| How many phases does a Eukaryotic Cell Cycle have and what are they | 3. 1) Interphase 2) Mitosis 3) Cytokenisis |
| what are the built in "clocks" called on the tips of chromosomes that determine how many times a cell can divide? | telomeres |
| what is the structure that joins sister chromosomes together called | a centromere |
| how many PAIRS of homologous chromosomes do humans have | 23 pairs |
| what is an arrangement of chromosomes called | a karyotype |
| what are the 3 things chromosomes are compared based on | 1) size 2) shape 3) CENTROMERE location |
| what is the process of chromosomes winding up tightly called | condensation |
| what are the stages of mitosis (4) | 1) Prophase 2) Metaphase 3) Anaphase 4) Telophase |
| which is a period of great metabolic activity when the cell ;Obtains nutrients, Grows and synthesizes new molecules and organelles: 1) Interphase 2) Prophase 3)Metaphase 4) Anaphase 5) Telophase | 1) Interphase |
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