When analyzing octads (ordered tetrads), second-division (MII) segregations result from
A) single crossovers between linked genes.
B) double crossovers between linked genes.
C) single crossovers between a gene and a centromere.
D) independent assortment of unlinked genes.
E) nondisjunction of homologs.
C) single crossovers between a gene and a centromere.
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Which of the following require physical contact between two bacterial cells for DNA transfer?
The 3 types of horizontal gene flow that occur in
bacteria are __________, __________, and __________. Fill in the blank(s) with the appropriate word(s).
During metabolism, cancer-causing ____ are generated
a. BRCA1 genes b. methyl amines c. reactive oxygen species (ROS) d. BCR-ABL proteins e. mutated tRNA fragments
Activity of CDKs is mediated by:
a. cyclins b. checkpoints c. growth factors d. nuclear lamins e. receptors