A woman who is heterozygous for the hemophilia allele has a 100% chance of having an affected son
Indicate whether the statement is true or false
FALSE
Explanation: The woman has one affected and one unaffected allele and will donate only one of these, with equal probability, to each of her sons.
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Which of the following is true when comparing RNA three-dimensional structure to that of DNA?
A. RNA helices are right-handed but not antiparallel like DNA helices. B. RNA helices are stabilized by base stacking but are not right-handed like DNA. C. Unlike DNA helices, RNA helices often have additional stabilization by non–Watson-Crick base pairing. D. RNA helices are less stable than DNA helices because they have regions that are unpaired. E. RNA helices are antiparallel, stabilized by base stacking, and are left-handed like DNA helices.
Changes in gene action that are often associated with cancer cells are known as ________ changes.
Fill in the blank(s) with the appropriate word(s).
The cookies with the least amount of fat had more cells around 500 ?m in size than did the cookies with the most amount of fat
Indicate whether the statement is true or false
Helicobacter pylori is responsible for ________.
A. peptic ulcer disease B. pneumonia C. cholera D. dysentery