Which is not true of mitochondria and chloroplasts?
A. They are found in all organisms.
B. They contain DNA and 70S ribosomes.
C. They are capable of performing protein synthesis.
D. They generate ATP.
A
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Nearsightedness is dominant to normal vision and hazel eyes are dominant to blue eyes. A nearsighted woman with hazel eyes who is heterozygous for both traits marries a man with normal vision and hazel eyes. His genotype for eye color is the same as his wife's. Their three children all have blue eyes and normal vision. What is the probability that their next child will have blue eyes and be
nearsighted? A. 1/4 B. 1/2 C. 3/8 D. 1/8 E. 5/8
Which of these is NOT a connective tissue?
a. cartilage b. blood c. bone d. adipose e. outer layer of skin
If you were using cladistics to build a phylogenetic tree of cats, which of the following would be the best outgroup?
A) lion B) domestic cat C) wolf D) leopard
In animal cells, the centrosome _____.
A) maintains the attachment of sister chromatids until anaphase begins B) forms the center from which microtubules extend to form the spindle C) of each chromosome attaches to the extended bipolar spindle D) forms the constriction along the length of the condensed chromosome