Term
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Definition
| active gene expression and cell activity, preparation for DNA synthesis |
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Term
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Definition
| chromosome duplication and DNA replication |
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Term
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Definition
| preparation for cell division |
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Term
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Definition
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Term
| What is the order of the cell cycle? |
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Definition
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Term
| What is the G0 checkpoint? |
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Definition
| terminal differentiation of and arrest of cell division |
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Term
| What are the two possible outcomes of the G0 checkpoint? |
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Definition
| 1. apoptosis 2. cell remains specialized but does not divide |
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Term
| how many DNA helices are there per chromatid? |
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Definition
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Term
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Definition
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Term
| what does Cohesion protein hold together? |
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Definition
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Term
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Definition
| the place on the chromosome where the centromere connects to the microtubule |
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Term
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Definition
| first stage in prophase of meiosis I. chromosomes are still in the nuclear envelope |
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Term
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Definition
| second phase of prophase of meiosis I. early early mitotic spindle |
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Term
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Definition
| 3rd step in prophase in meiosis 1. spindle present, centromeres present |
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Term
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Definition
| last stage of prophase in meiosis 1, chiasmata and sister chromatids present |
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Term
| How is the sex determined for Drosophila? |
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Definition
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Term
| what is the sex of a fruit fly if it is 1X:2A? |
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Definition
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Term
| what is the sex of a fruitfly if it is is 2x:2A |
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Definition
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Term
| what is the gene that controls sex lethality in drosophila? |
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Definition
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Term
| how is the mammalian sex determined/ |
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Definition
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Term
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Definition
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Term
| in what gene is the 5 alpha reductase mutation in ? |
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Definition
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Term
| what does the mutation for 5 alpha reductase do? |
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Definition
| changes the sex of the child from female to male after puberty... |
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Term
| what does the AR mutation do ? |
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Definition
| reverses sex of male by causing external female phenotypes and no internal structures |
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Term
| what type of disorder is Congenital generalized hypertrichosis? |
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Definition
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Term
| what is the Lyon hypothesis? |
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Definition
| that one X chromosome is silenced |
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Term
| why are calico cats different fur coats? |
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Definition
| because one of the Barr bodies are silent |
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Term
| what does amorphic // null mean? |
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Definition
| no functional gene product...usually lethal..LOSS OF FUNCTION |
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Term
| what is a leaky // hypomorphic mutation? |
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Definition
| produce a small amount of wild type product...loss of function |
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Term
| what is a dominant negative mutation, and what is an example? |
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Definition
| the products of the faulty gene have a bad interaction with the gene products of another gene....osteogenesis imperfecta |
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Term
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Definition
| excessive expression of gene product ...causes lethality |
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Term
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Definition
| the mutant allele has a novel function that produces a mutant phenotype in the homozygous AND heterozygous. |
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Term
| what is an example of incomplete dominance? |
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Definition
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Term
| what kind of antibodies are present on Red blood cell TYPE A? |
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Definition
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Term
| what kind of antibodies are present on red blood cell type B? |
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Definition
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Term
| What type of antibodies does blood cell type AB have? |
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Definition
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Term
| what kind of antibodies are present on O blood cell type? |
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Definition
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Term
| what is the genetic ratio that explains complementary gene interactions? |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| what's necessary for complementation to occur? |
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Definition
| mutations have to occur in same gene |
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Term
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Definition
| have the matching phenotype to the genotype |
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Term
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Definition
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