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23 Cards in this Set
- Front
- Back
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T/F okazaki fragments are made from the lagginf strand of the DNA double helix?
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T
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T/F during transcription, both strands of DNA are used as templates for the construction of 2 new strands of RNA
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F
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T/F in eukaryptic cells, the direction of DNA synthesis during replication is 5' to 3', while in prokaryotic cells, DNA is synthesized from the 3' to 5' direction
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F
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T/F In diploids, a single recessive allele can be expressed via pseudodominance
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T
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T/F a translocation event involves breaks within a gene does not normally result in a mutant phenotype
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F
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T/F in general, plants are more tolerant than animals of variations in the number of chr sets in their cells
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T
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The condition resulting from a trisomy of chr 21 is...
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down syndrome
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A polyploidy cell in which the sets of chr come from parents of the same species is an..
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autopolyploid
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A____ inversion involves the centromere
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pericentric
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A woman with an X0 genotype has turner syndrom and would be considered
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aneuploid
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What is a picture of the complete set of metaphase chr called?
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karyotype
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A normal human has 23 pairs of chr, or a total of 46 chr. A nullisomic human cell would contain how many chr?
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44
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A ___ is located adjacent to the beginning of a genes coding region
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promoter
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Which of the following is NOT a chr staining method discussed in class?
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P
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What type of chr rearrangements leads to an overall reduction in the amt of genetic material in the cell?
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deletion
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which of the following is not a true difference btw RNA and DNA?
a- RNA uses ribose as its sugar while DNA uses deoxyribose b- RNA is double-stranded while DNA is single stranded c- RNA contains URacil while DNA contains thymine |
B
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___ are genetic elements found in both prokaryotes and eukaryotes with the capacity to move from one location in a genome to another
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transposons
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The existence of transpossable elements was first demonstrated by ____ through a series of experiments with maize
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barbara mcclintock
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In ___ transposition, a new copy of the transposable element in introduced at a new site while the old copy remains behind the original site.
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replicative
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in __ transposition, the transposable element moves form one site and inserts into a new site without any increase in the number of copies
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nonreplicative
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Which prokaryotic DNA polymerase is responsible for removing RNA primers from the newly synthesized DNA strand and replacing them with DNA nucleotides
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I
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DNA primase is an enzyme that catalyzes the reactions necessary to synthesize a molecule of ..
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RNA
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transposable elements can consist of which of the following features
a- transposage gene b- antiobiotic resistance gene c-terminal inverted repeats |
All
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