ở người, biện pháp tránh thai nào sau đây dựa trên cơ sở ngăn cản trứng chín và rụng? a: thắt ống dẫn tinh. b: đặt vòng tránh thai. c: uống thuốc tránh thai. d: thắt ống dẫn trứng.

Drag each label to the correct location on the chart. match the function to the type of tissue

Where is the nictitating membrane found? a. between the eyelid and the eyeball b. between the retina and the optic nerve c. between the outer and middle ear d. in the organ of corti in the middle ear

Which of the following is not true of the formation of a bacterial translation initiation complex? a. if-3 binding to gtp is required for the charged trna to associate with the first mrna codon. b. n-formylmethionyl-trnafmet binds in the p site. c. if-1, if-2, and if-3 dissociate upon the 50s subunit binding. d. the 30s ribosome associates with the mrna before the 50s ribosome.