Centromere
What will be an ideal response?
the point on a chromosome by which it is attached to a spindle fiber during cell division.
You might also like to view...
The default state for the lac operon is off, while the default state for the trp operon is on. Explain this
contradiction and the mechanism of control via the repressor proteins.
What will be an ideal response?Semen consists of:
a. sperm only. b. secretions of accessory glands only. c. sperm plus urine. d. sperm plus secretions of accessory glands. e. sperm plus urine plus secretions of accessory glands.
An excretory system that is partly based on the filtration of fluid under high hydrostatic pressure is the _____
A) flame bulb system of flatworms B) protonephridia of rotifers C) Malpighian tubules of insects D) kidneys of vertebrates
A karyotype you are viewing shows an extra piece of chromosome 1 attached to chromosome 22. What type of abnormality caused this?
A) translocation B) nondisjunction C) sex-linked D) deletion E) inversion