The final step in karyotyping is when _____.
A) colchicine is added to the suspension of cells and growth medium
B) the cells are osmotically shocked
C) the photographed chromosomes are cut up and reorganized by size
D) a pedigree is constructed from the assembled family history
Ans: C) the photographed chromosomes are cut up and reorganized by size
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In control of the lactose operon, allolactose acts as a(n)
1.repressor. 2.activator. 3.co-repressor. 4.inducer. 5.structural gene.
Which of the following statements regarding Grey Turner sign is correct?
A) Grey Turner sign is characterized by bruising around the umbilicus. B) The presence of Grey Turner sign should make you suspicious for hepatitis. C) Grey Turner sign is the cessation of inspiration during abdominal palpation. D) Grey Turner sign is characterized by flank bruising and indicates retroperitoneal hemorrhage.
For every turn of the Calvin cycle, how many triose phosphates are exported from the chloroplast?
A. 1 B. 3 C. 5 D. 6 E. 12
Chlorosis in plants is a condition best explained by:
A. lack of water B. lack of certain minerals C. lack of oxygen D. lack of carbon dioxide E. lack of soil moisture