Question

reading check

1. identify what are the sides of the dna \ladder\ made of?

45 guanines and 55 adenines
critical thinking

1. apply concepts imagine that you are a scientist studying dna. you measure the number of cytosines and thymines in a small strand of dna. there are 45 cytosines and 55 thymines. how many guanines are there in the strand? how many adenines are there?

take a look

1. identify give the ways that dna bases can pair up.

Explanation:

In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). So, the number of guanines is equal to the number of cytosines, and the number of adenines is equal to the number of thymines.

Answer:

There are 45 guanines and 55 adenines.