It must occur in the genetic material of a sex cell
b) cytosine pairs with guanine in both. literally in dna replication,
<em>adenine goes with thymine</em>
<em>thymine goes with adenine</em>
<em>guanine goes with cytosine</em>
<em>cytosine goes with guanine</em>
hope this helps mina! :) <3
Liquids will flow and fill up any shape of container. Solids like to hold their shape. In the same way that a large solid holds its shape, the atoms inside of a solid are not allowed to move around too much. Atoms and molecules in liquids and gases are bouncing and floating around, free to move where they want.