A blocked coronary sinus would block blood flow:a
into the superior vena cava.
b. into the inferior vena cava.
c. into the pulmonary arteries.
d. returning from the pulmonary arteries.
e. returning from the coronary circulation
E
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What is the name of the figure shown below that depicts the staining and photographing of an entire set of duplicated, condensed chromosomes from a single cell?
A) Cytosmear B) Cell smear C) Pap smear D) Karyotype E) Karyogram
The fragments of chromosomes split by restriction
enzymes a. have fused ends. b. have specific sequences of nucleotides and often have sticky ends. c. each have the same number of nucleotides as the original chromosome. d. form a circle. e. have modified DNA nucleotides.
Both ________________ and _________________ have a two-ringed chemical structure. Fill in the blank(s) with the appropriate word(s). Fill in the blank(s) with the appropriate word(s)
The choanocytes have a flagellum that moves water through the sponge and a collar that extracts food particles from the water. In what group have you encountered very similar cells before?
A. the choanoflagellates. B. the chytrids. C. the Euglenozoa. D. the Foraminifera. E. the charophytes.