How was it determined that X-rays are mutagenic?
What will be an ideal response?
H. J. Muller determined that a direct relationship occurred between X-linked recessive lethals and X-ray dose in Drosophila.
You might also like to view...
Which statements about K are correct?
I) K varies among populations. II) K varies in space. III) K varies in time. IV) K is constant for any given species. A) only I and III B) only II and IV C) only I, II, and III D) only II, III, and IV E) only I, II, and IV
Proteins produced by certain white blood cells may actually slow the production and maturation of other immune cells, thereby acting as regulators of the immune response. These are known as
a. cytokinins. b. complement. c. interferons. d. interleukins. e. MHC
Homeostatic systems work within minimum and maximum values by using positive feedback to regulate activity above and below a set point
Indicate whether the statement is true or false
There is concern over the use of 2,4-D, a synthetic plant hormone, as a weed killer because the by-product dioxin
A) can cause irreversible mutations in crop plants. B) causes fruit to drop prematurely from plants. C) can cause birth defects and leukemia in mammals. D) weakens the shells of the eggs of predatory birds, resulting in the death of their offspring.