If right I’ll mark brainliest

TT

Explanation: We know that the ability to roll your tongue is a dominant trait from your parents, and the inability to roll your tongue is a recessive trait. So the genotype would be TT.

Note: I'm not in the grade, so I don't know this yet, I tired to explain it clearly.

answer; ///(b) it is composed of four protein chains and four heme groups;

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus