-- card: 86033 from stack: in -- bmap block id: 112200 -- flags: 0000 -- background id: 2665 -- name: -- part 1 (button) -- low flags: 00 -- high flags: 8003 -- rect: left=205 top=315 right=337 bottom=256 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 1 -- font id: 0 -- text size: 12 -- style flags: 0 -- line height: 16 -- part name: NEXT ----- HyperTalk script ----- on mouseUp go to next card end mouseUp -- part 2 (button) -- low flags: 00 -- high flags: 8003 -- rect: left=149 top=314 right=337 bottom=199 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 1 -- font id: 0 -- text size: 12 -- style flags: 0 -- line height: 16 -- part name: PREV. ----- HyperTalk script ----- on mouseUp go back end mouseUp -- part contents for background part 1 ----- text ----- BACTERIA/VIRUSES -- part contents for background part 2 ----- text ----- Both bacteria and viruses possess circular chromosomes which can be opened up under appropriate conditions. If the "buckle points" in both forms are identical, then it is possible for a viral chromosome to incorporate itself into bacterial DNA. This process is depicted at the right along with the normal lytic cycle of viral particles. You will note two bacteria cells and two virus particles. Why dont we call viruses cells? The bacterial chromosome is depicted by a heavy line, the viral chromosome by a thin line. Flip to the next card to see the attack phase. -- part contents for background part 8 ----- text ----- 14