Term
| DNA binding protein(s) that help configure the replicated chromosome for segregation |
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Definition
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Term
| part of the chromatids kinetochores attach |
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Definition
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Term
| contractile ring that is involved in cytokinesis is made up of |
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Definition
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Term
| complex that degrades ubiquinated proteins is known |
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Definition
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Term
| From 1 diploid somatic cell how many sex cells can be produced from meiosis |
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Definition
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Term
| diploid cell contains two pairs of homologous chromosomes heterozygous for a pair of alleles, Aa and Bb respect how many different combinations of these alleles could be produced in the haploid daughter cells |
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Definition
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Term
| major difference between mitosis and meiosis |
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Definition
| Homologous chromosomes associate only in meiosis. |
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Term
| which stage of meiosis do chromatids separate completely |
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Definition
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Term
| genotype of a human zygote will differ from that of both parents. Which of the following does not contribute to this variation |
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Definition
| Presence of dominant genes |
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Term
Which occurs in G2 to M-phase
Assembly of the mitotic spindle
Nuclear membrane breakdown
Chromosome condensation
Activation of APC (anaphase promoting complex) |
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Definition
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Term
| Kinetochore microtubules of sister chromatids point in the same direction when |
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Definition
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Term
| During anaphase, interpolar microtubules_______and kinetochore microtubules_______. |
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Definition
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Term
a method used to ensure that the cell cycle proceeds in a forward direction
Destruction of cyclin and inhibitors at appropriate times in the cell cycle Phosphorylation/dephosphorylation of CDK
Inhibitors of CDK |
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Definition
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Term
| Which checkpoint does the RB tumor suppressor protein affect |
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Definition
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Term
| When RB is phosphorylated |
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Definition
| RB is in the inactive conformation |
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Term
| P16 is a negative regulator of the cell cycle that |
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Definition
| Inhibits the activity of CDK/cyclin |
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Term
| Cells respond to mitogenic signals during: |
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Definition
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Term
| P53 is a functional transcription factor when |
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Definition
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Term
| What happened when Rao and Johnston fused a G1 and S phase cell |
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Definition
| The hybrid cell contained two S phase nuclei. |
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Term
Which of the following occurs during PCD (Programmed Cell Death)
Loss of cell volume
Nuclear condensation
Cleavage of actin and lamin
Chromatin destruction |
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Definition
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Term
| Which of the following class of proteins mediates cleavage of cellular targets |
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Definition
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Term
| Injection of cytochrome C directly into the cytoplasm of a mammalian cell will result in |
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Definition
| Activation of the caspase cascade |
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Term
Which of the following would be located in the cytosol
Bcl-2 like proteins
Apaf1 (adaptor) protein
Procaspase proteins
A and B
B and C |
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Definition
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Term
Which of the following is a cell junction in plant cells
Gap junction Hemidesmosome
Desmosome
Plasmodesmata
BandC |
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Definition
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Term
| Epithelial cells are connected to the Extracellular Matrix (ECM) via |
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Definition
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Term
| Which protein is located in the cytoplasm |
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Definition
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Term
| Which of the following cell types is found in the human tongue |
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Definition
| Stratified squamous epithelium |
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Term
| The basal lamina is connected to, by, |
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Definition
| Intermediate filaments, hemidesmosomes |
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Term
Procollagen is converted to mature collagen:
a.In the cytoplasm
b.In the ER
c.In the extracellular environment
d.By proteolytic cleavage
e. C and D |
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Definition
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Term
| Which cell type has the least plasticity |
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Definition
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Term
| Which cell type is not capable of cellular division |
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Definition
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Term
| Which of the following types of problems may be caused by defects in gap junctions |
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Definition
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Term
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Definition
| Collagen is synthesized in its mature form by fibroblasts. |
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Term
| The neural tube is formed during the process of early embryonic development. Which structure is most directly involved in this process |
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Definition
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Term
| Which of the following mutations is likely to induce cell-cycle progression? |
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Definition
| A mutation in a cell-surface mitogen receptor that made it active even in the absence of its mitogen ligand |
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Term
| During mitosis, sister chromatids are held together by ________ which is rapidly degraded during the transition to __________ |
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Definition
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Term
| Which events occur during interphase |
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Definition
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Term
| Microtubules attach to kinetochores. |
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Definition
| as soon as the nuclear envelope breaks down |
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Term
Kinetochore microtubules of sister chromatids point in the opposite direction
A.During meiosis I
B.During meiosis II
C.During mitosis
D. A and B
E. B and C |
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Definition
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Term
Which DNA-binding protein is active when phosphorylated
A. RB
B. E2F
C. P53
D. Mitotic-Cyclin-dependent Kinase complex
E. P16 |
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Definition
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Term
| When the RB protein is phosphorylated |
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Definition
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Term
| Overexpression of the p16 protein will most likely |
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Definition
| Have an anti-growth effect on the cell |
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Term
| During meiosis, when does the precursor germ cell become haploid |
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Definition
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Term
| When do homologous chromosomes “find” each other? |
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Definition
| Before they line up on the metaphase plate |
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