Magnetic resonance imaging (MRI) provides the best images of bone fractures, but due to expense, x-rays are used most often.
Answer the following statement(s) true (T) or false (F)
Answer: False.
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Vascular tissue cells that join end to end in tubelike columns are known as ____
a. sclerenchyma b. tracheids c. collenchyma d. parenchyma
e. vessel elementsWhat is the difference between dideoxyribonucleotides (ddNTP) used in Sanger sequencing and the
deoxyribonucleotides (dNTP) normally found in DNA?
a. ddNTPs have a 3' H rather than OH b. dNTPs have a 3' H rather than OH c. ddNTPs have a 5' OH rather than H d. dNTPs have a 5' OH rather than H e. ddNTPs have a 3' OOH rather than OH
In a strand of DNA, a cytosine base has been replaced by guanine. What kind of mutation has occurred?
a. frameshift mutation b. transition substitution c. transversion substitution d. translocation
By the eighth week of human fetal development, ____.
A. the embryo does not look human yet B. the neural tube has just begun to differentiate C. upper and lower limbs are still forming D. male or female reproductive structures have not started to form yet E. male or female reproductive structures are forming