what is the key cell in the field of cancer immunotherapy?
What will be an ideal response?
CTL
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During HIV reproduction, spike glycoproteins
A. do not enter the cell with the virus. B. are released into the cytoplasm by cellular enzymes. C. are embedded in the infected cell membrane. D. are assembled into the virus along with reverse transcriptase. E. are embedded in the viral capsid.
A zone of undifferentiated plant cells that can divide rapidly is called a _____
1.cotyledon 2.dermal tissue 3.ground tissue 4.meristem
Which enzyme(s) is/are responsible for excising and copying transposable genetic elements from chromosomes and inserting them into new locations?
What will be an ideal response?
Which activity could help you to slow the rate of global warming?
A) only buy food in plastic containers B) drive faster than the speed limit C) replace an old refrigerator with a new one D) mow the grass more frequently