Creighton and McClintock worked with _______ and their model system to show that homologous chromosomes physically exchange genetic information during crossing over
A. fruit flies
B. peas
C. corn
D. tobacco
C
You might also like to view...
Consider the following electronegativity values: Boron (B) = 1.8 Carbon (C) = 2.5 Chlorine (Cl) = 3.2 Selenium (Se) = 2.6 Which of the following bonds is the most polar?
A. Se-Cl B. C-Cl C. B-Cl D. cannot determine from the information provided
Coral bleaching is a result of: a. the calcareous skeleton begins to breakdown
b. extended periods of run-off. c. pesticides from coastal developments. d. corals expelling their zooxanthellae.
Memory cells are ________ that function in _______
a. macrophages; removing the debris of an infection b. T cells; remembering self-antigen, thus protecting the body's cells c. T cells; determining which B cells will get activated during a second exposure to an antigen d. B cells; retaining the ability to make an antibody used to fight a previous infection e. B cells; remembering where to direct macrophages to fight a local infection
What term refers to the renewal of a natural
ecosystem that has been degraded?
a. ecological balance b. ecological restoration c. eutrophication d. biological magnification e. bioremediation