Question

direction: determine which base should go below each of the original dna bases.

1. chargaffs rule tells us that adenine always complements and guanine always complements.
2. if a dna strand contains 42% a what percentage of t, c, and g would it

Explanation:

Step1: Apply Chargaff's Rule for complementary bases

Adenine (A) pairs with Thymine (T) and Guanine (G) pairs with Cytosine (C). So if a DNA strand has 42% A, the percentage of T is also 42% since A = T according to Chargaff's Rule.

Step2: Calculate the combined percentage of C and G

The total percentage of all bases in DNA is 100%. So the combined percentage of C and G is $100-(42 + 42)=16\%$.

Step3: Determine the percentage of C and G individually

Since C = G, the percentage of C is $\frac{16}{2}=8\%$ and the percentage of G is also 8%.

Answer:

T: 42%, C: 8%, G: 8%