In one kind of butterfly, brown color is caused by a dominant allele, b, and white color is caused by a recessive allele, b. the table shows the observed numbers of phenotypes in a population of 100 butterflies.

phenotype
number of individuals
brown
84
white
16

what is the frequency of the heterozygous genotype in this population of butterflies?
0.24
0.36
0.48
0.60

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

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