Choose the sentence with no errors in capitalization.
- by the time you spot the north star, the fireworks should be almost ready.
- most of them will be fishing from the preston bridge during the festival.
- the methodists will be bringing their big barbeque cooker.
- the millfield high school's lancers also march in the parade for the united way.

"By the time you spot the North Star, the fireworks should be almost ready." should be the correct answer.

Explanation:
Preston Bridge is a place and its latter term should be capitalised as it's part of the name.
Big Barbeque Cooker, in this case, stands for a name and should be capitalised.
Millfield High School is not properly capitalised.

Okay, biology isn't exactly my strongest subject (it never has been), but i'm pretty sure the answer is nucleotides. dna is made up of nucleotides. each nucleotide contains a phosphate group, a sugar group, and a nitrogen base. there are four different nitrogen bases: adenine (a), thymine (t), guanine (g), and cytosine (c). a always pairs with t, and g always pairs with c.