genetics

Card Set Information

Author:
Anonymous
ID:
107836
Filename:
genetics
Updated:
2011-10-10 18:06:09
Tags:
Genetic terms
Folders:

Description:
chpt 6,7,9
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. cp DNA
    chloroplast DNA
  2. cytoplasmic inheritance
    refers to the inheritance of genetic material that is not found within the cell nucleus
  3. Differentially methylated regions:
    in the case of imprinting, a site that is methylated during spermatogenesis or oogenesis, but not both. It contain binding sites for one or more proteins. located near imprinted gene
  4. Epigenic inheritance
    An inheritance pattern in which a modification to a nuclear gene or chromosome alters gene expression in an organsm, but the expression is not changed permanantely over the course of many generations
  5. extranuclear inheritance
    refers to the inheritance of genetic material that is not found within the nucleus
  6. Genomic imprinting
    example of epigenic inheritance. A pattern of inheritance that involves a change in a single gene or chromosome during gamete formation. Dpepending on whether the modification occurs during spermatogenesis or oogenesis, imprinting governs whether an offspring will express a gene that has been inherited from its mother or father
  7. maternal effect
    an inheritance pattern for certain nuclear genes in which the genotype of the mother directly determines the phenotype traits of her offspring
  8. Maternal inheritance
    inheritance of DNA that occurs through the cytoplasm of the egg
  9. mtDNA
    mitochondrial DNA
  10. centiMorgan (cM)
    aka map unit, a unit of map distance obtained from genetic crosses.
  11. Linkage
    refers to the occurrence of two or more genes along the same chromosome
  12. linkage group
    a group of genes that are linked together because they are found on the same chromosome
  13. linkage mapping
    mapping of genes or other genetic sequences along a chromosome by analyzing the outcome of crosses
  14. map units
    unit of map distance obtained from genetic crosses. one map unit is equivalent to 1% recombinant offspring in a testcross
  15. parental
    in a testcross, refers to a phenotype or arrangement of allels on a chromosome that is the same as one or both members of the parental generation
  16. recombinant
    combination of allels or traits that are not found in the parental generation
  17. auxotroph
    A strain that cannot synthesize a particular nutrient and needs that nutrient supplement in its growth medium or diet
  18. Bacteriophage
    virus that infects bacteria
  19. competent cells
    cells that can be transormed by extracellular DNA
  20. complete medium
    for a microorganism, a medium that supplies all the ingredients required for growth and reproduction, including those normally produced by the wildtype organism
  21. conjugation
    a form of genetic transfer between bacteria that involves direct physical interaction between two bacterial cells. one bacterium acts as donor and transfer to the recipient cell
  22. F Factor
    a fertility factor found in certainstrains of bacteria in addition to their circular chromosome. strains of bacteria that contain an F factor are designated F+; strains w/o F factor are F-.
  23. generalized transduction
    a form of transduction in which any piece of the bacterial chromosomal DNA can be incorporated into a phage
  24. High-frequency of recombination
    a bacterial strain in which an F factor has become integrated into the bacterial chromosome. during conjugation, an Hfr strain can transfer segments of the bacterial chromosome
  25. Lysogenic cycle(pathway)
    a type of growth cycle for a phage in which the phage integrates its genetic material into the chromosome of the bacterium. this integrated phage DNA can exist in a dormant state for a long time, during which no new bacteriophages are made
  26. Lytic cycle
    A TYPE OF GROTH CYCLE FOR A PHAGE IN WHICH THE PHAGE DIRECTS THE SYNTHESIS OF MANY COPIES OF THE PHAGE GENETIC MATERIAL AND COAT PROTEINS. THESE COMPONENTS THEN ASSEMBLE TO MAKE NEW PHAGES. WHEN SYNTHESIS AND ASSEMBLY IS COMPLETED, THE BACTERIAL HOST CELL IS LYSED AND THE NEWLY MADE PHAGES ARE RELEASED INTO THE ENVIRONMENT
  27. Minimal Medium
    for a microorganism, a medium that contains the simplest set of ingredients (sugar, some salts, and trace elements) required for the growth and reproduction of wild type cells.
  28. Plasmid
    a general name used to describe circular pieces of DNA that exist independently of the chromosomal DNA. Some plasmids are used as vectors in cloning experiments
  29. Prophage
    phage DNA that has been integrated into the bacterial chromosome
  30. Prototroph
    A strain that does not need a particular nutrient supplemented in its growth medium or diet
  31. relaxosome
    a protein complex that recognizes the origin of transfer in F factors and other cojugative plasmids, cuts one DNA strand, and aids in the transfer of the tDNA
  32. Specialized transducing phage
    a temperate bacteriophage that can transfer only a certain section of the bacterial chromosome from one bacterium to another
  33. Specialized transduction
    a type of transduction in which only specific genes are transferred from one bacterium to another
  34. Temperate Phage
    a bacteriophage that usually exist in the lysogenic cycle
  35. Transduction
    a form of genetic transfer between bacterial cells in which a bacteriophage transfer bacterial DNA from one bacterium to another.
  36. Virulent phage
    a phage that follows the lytic cycle

What would you like to do?

Home > Flashcards > Print Preview