Which of the following combinations are true of the nucleotide composition of a sample of DNA? SELECT ALL ANSWERS THAT APPLY*
A + C = G+T
A = T and C = G
A-T=G-C
A + T = G+C
C = A and G = T
.
AXC = GXT

Mention true or false : a) cholera is marked by acute diarrhea and no urination. b)mosquitoes are the source of dysentery germs.

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Need the diagram below, which is not drawn to scale, shows the position of the earth, moon, and sun. what type of eclipse occurs when the earth, moon, and sun are lined up in the order shown? a. planetary eclipse b. solar eclipse c. martian eclipse d. lunar eclipse