bio 130 ch 17

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  1. This means that traits are influenced by manu genes
    Epigenetic inheritance
  2. Probability that one of two or more mutually exclusive outcomes will occur is the sum of the probabilities of the possible outcomes
    Gene interaction
  3. Alleles of one gene mask the expression of the alleles of another gene.
    Epistasis
  4. What are the types of traits?
    Discrete, quantitative, and polygenic
  5. These traits are clearly defined phenotypic variants. Purple or white flowers, red or whit eyes.
    Discrete
  6. These are what the majority of traits are. Continuous variation over a range of phenotypes. Height, skin color, number of fruits on tree.
    Quantitative
  7. These trair involve multiple gene contribution to the phenotypes.
    Polygenic
  8. These offspring have trait combinations like those of parents
    nonrecombunants
  9. These offspring have different combination of traits from parental generation
    recombinants
  10. Recombinants are the result of what?
    crossing over of genes
  11. This allows us to estimate the relative distances between linked genes based on the frequency of crossover.
    Genetic mapping
  12. How many genes does the mitochondial genome have?
    37
  13. Have many mitochondrial genes encode for tRNAs and rRNA needed for translation?
    24
  14. How many of the mitochondrial genes encode for oxidative phosphorylation?
    13
  15. How many genomes do chloroplasts contain?
    110-120
  16. This is when the egg cell provides most of the zygotes cytoplasm.
    Maternal inheritance
  17. Both pollen and egg contribute
    Biparental inheritance
  18. Only pollen contributes to the cell
    Paternal inheritance
  19. female mammals heterozygous for X-linked genes have half their somatic cells expressing each allele
    mosaic
  20. inactivation of one X in female cells gives equal levels of expression of X-linked genes in male and female cells
    Dosage compensation
  21. Cells of humans and other mammals have ability to count X chromosomes and allow only one to be active. Extra X chromosomes are converted to
    Barr bodies

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Author:
MagusB
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313118
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bio 130 ch 17
Updated:
2015-12-12 20:46:02
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Bio 130
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Chapter 17
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