Which of the following syndromes is characterized
by a karyotype with 45 chromosomes?
a. Turner
b. Down
c. androgen insensitivity
d. Klinefelter
e. cri-du-chat
Answer: a
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What best describes the composition of a nucleosome complex (with no H1)?
A. H2A, H2B, H3, H4, along with 147 bp of DNA B. H2A, H2B, H3, H4, along with 168 bp of DNA C. 2 molecules each of H2A, H2B, H3, and H4, along with 147 bp of DNA D. 2 molecules each of H2A, H2B, H3, and H4, along with 168 bp of DNA
The organelle that is the equivalent of a cellular garbage disposal system is the
A) nucleus. B) lysosome. C) mitochondrion. D) glucosome.
Which cellular shape is seen among members of domain Bacteria that is not found among the domain Archaea?
A. Comma shaped B. Spiral or corkscrew shapes C. Cocci D. Bacilli
The discovery of identical plant and animal fossils by Alfred Wegener in 1915 on either side of the Atlantic Ocean is
evidence of ____.
a. analogous structures b. catastrophism c. plate tectonics
d. comparative morphology e. the great chain of being