The first organisms were most probably
a. eukaryotic.
b. multicellular.
c. prokaryotic.
d. algae.
e. protozoans.
c
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Familial Down syndrome can be caused by a translocation between chromosomes 1 and 14
Indicate whether the statement is true or false
DNA barcoding is a method that can be used to identify any organism.
Answer the following statement true (T) or false (F)
A chiral compound cannot be superimposed on its mirror image. By this definition your hands would be considered chiral compounds.
a. true b. false
Which of the following characteristics of the structure of DNA was determined directly from X-ray diffraction photographs of crystallized DNA?
A. the double helical structure B. the length of a given DNA molecule C. the frequency of A versus T nucleotides D. the sequence of nucleotides