Two sister chromatids are held together at the
A. autosome.
B. telomere.
C. centromere.
D. spindle.
E. aster.
Answer: C
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For each description below, choose the type of cell division it characterizes. a. mitosis b. meiosis c. both mitosis and meiosis
______ forms genetically identical daughter cells ______ forms genetically unique daughter cells ______ forms four daughter cells ______ parent cell undergoes two rounds of cell division ______ homologous chromosomes exchange DNA prior to dividing ______ forms diploid daughter cells ______ divides after a single round of DNA replication _____ homologous chromosomes undergo synapsis ______ follows a single round of replication What will be an ideal response?
The main reason why the numbers of black-footed ferrets decreased rapidly is
a. decreased populations of prairie dogs. b. decreased numbers of whitebark pine berries. c. habitat disruptions. d. hunting
Sperm mature and are stored in the epididymis
a. True b. False
Which one of the following BEST distinguishes scientific areas of study from those that are not science?
A. Nonscientific areas of study have few facts. B. Scientific areas of study publish their findings and ideas. C. Scientific areas of study rarely make mistakes. D. Scientific areas of study always test their assumptions and ideas.