____________________ are mutations involving the increase of the number of repeat sequences in genes. Fill in the blank(s) with the appropriate word(s)
Allelic expansions
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During this stage of mitosis, the chromosomes become attached to the spindle at their kinetochores.
A. Prophase B. Prometaphase C. Metaphase D. Anaphase E. Telophase
Early work with Clostridium tetani and Corynebacterium diphtheriae demonstrated
A. the importance of thoroughly cooking food. B. the usefulness of vaccines. C. the potential threat from spore-forming bacteria. D. that disease can be caused by poisonous substances produced by bacteria.
The study on mutations in germ-line cells indicates all of the following EXCEPT
a. some mutations are inherited from our parents b. some mutations arise as new mutations in the germ-line c. the mutation rates are the same in all families d. more families need to be studied to draw any real conclusions e. this information can be used in medical research
These data indicate that the effect of the cultured cell product is greatest when wounds are fresh
1.True
2.False