In order to transfer all the genes to an F- cell we would need how long?
a. 1 minute
b. 20 minutes
c. 3 minutes
d. 14 minutes
e. 5 minutes
D
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An individual reports to the doctor that they are experiencing pain in their left arm. What would the doctor think may be wrong? What will be an ideal response?
Which of the following sequences correctly represents the phytochrome signal transduction pathway?
a. red light ? PIF3 activation ? PIF3 into nucleus ? light-responsive gene switched off b. red light ? Pfr to Pr ? Pr into nucleus ? Pr-PIF3 complex ? light-responsive gene regulation c. UV light ? PIF3 into nucleus ? light responsive gene produces phytochrome ? Pr to Pfr d. blue light ? Pfr into nucleus ? Pfr-PIF3 complex ? light-responsive gene regulation e. red light ? Pr to Pfr ? Pfr into nucleus ? Pfr-PIF3 complex ? light-responsive gene regulation
Chloroplasts
A. contain bacterial type DNA. B. contain bacterial type ribosomes. C. reproduce independently of the cell. D. All of these answers are correct.
A Coulter counter is used to obtain pure cultures.
Answer the following statement true (T) or false (F)