43 1 point What causes gene duplications? None of these choices are correct Deletion of important genetic information Position effect Reciprocal translocations Crossing over of misaligned chromosomes
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Step 1: Gene duplication is a process where a portion of a chromosome is duplicated, resulting in an extra copy of a gene. Show more…
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7. If a cell has 150% more of a protein than what is considered normal what type of karyotypic abnormality would be expected? A) Translocation B) Deletion C) Aneuploidy D) Inversion 8. Gene duplications may be caused by _________. A) the crossing over of misaligned chromosomes B) deletion of important genetic information C) reciprocal translocations D) position effect E) None of these choices are correct.
Shyam P.
7. _____ can increase the genetic material for a particular chromosome, whereas _____ increases the genetic material for all chromosomes. Deletions; inversions Polyploidy; duplications Duplications; aneuploidy Aneuploidy: polyploidy None of the above
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What results from unequal crossing over between homologous chromosomes? duplication on one chromosome deletion on one chromosome reciprocal translocation an inversion on both chromosomes Both (a) and (b) occur but not (c) or (d) answers (a). (b), (c) and (d) are all possible results Which of the following crosses will produce progeny whose germ cells will produce an unpaired loop at metaphase of meiosis I? cross between strain homozygous for chromosomal deletion and wild type strain: cross between strain homozygous for chromosomal duplication and wild type strain. cross between strain homozygous for reciprocal translocation and wild type strain: cross between strain homozygous for an inversion and wild type strain. all the answers are correct Only answers (a) and (b) are correct: Only answers (c) and (d) are correct:
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