A female who is heterozygous for hemophilia will
a. exhibit the condition throughout her life.
b. suffer from bleeding when severely stressed.
c. show no signs of the disease at all.
d. pass the gene on to all of her children.
e. pass the gene on to only her sons.
C
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In an experiment designed to analyze the mRNAs present in a cell at a given time in the life cycle, it was found that about 50% of the mRNAs are of one type, less than 20% represent eight other mRNAs, and the rest consist of several thousand
different mRNAs. What does this information indicate? A) Only the mRNA expressed at the highest level is of any importance to this cell type. B) The pattern of expression of the low-level mRNAs is what makes the cell type unique. C) The low-level expressed genes are from organelles. D) Those genes expressed at a low level are likely to be "housekeeping" genes found in many cell types. E) The genes most specific to this cell type and life stage are the 8 found at an intermediate level.
The matching nucleotide base pairs in DNA are bound to one another by__________ bonds.
A) covalent B) ionic C) peptide D) hydrogen
Babies were accidentally switched at the hospital! Mr. and Mrs. Fire both have type O blood. Which of the following four babies of the same age is most likely the Fire child?
A) baby with type A B) baby with type AB C) baby with type B D) baby with type O
If you found the same number of short tandem repeats at three different locations in two samples of DNA, what would you conclude?
A) Both samples were from females. B) Both samples were from males. C) The two samples were most likely from the same individual. D) The two samples were from different individuals.