Question

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

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:

Step1: Recall base - pairing rules

In DNA, guanine (G) pairs with cytosine (C), and adenine (A) pairs with thymine (T).

Step2: Calculate the number of guanines

Since \(G = C\) (guanine - cytosine pairing), and there are 45 cytosines, the number of guanines \(G=45\).

Step3: Calculate the number of adenines

Since \(A = T\) (adenine - thymine pairing), and there are 55 thymines, the number of adenines \(A = 55\).

Answer:

There are 45 guanines and 55 adenines.