Question

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 contain? t ; c ; g
3. dna is found in the of eukaryotic cells and of prokaryotic cells.

direction: match the word to the correct definition.

Explanation:

1. Chargaff's Rule states that Adenine (A) always pairs with Thymine (T) and Guanine (G) always pairs with Cytosine (C) in DNA.
2. Since A pairs with T, if A is 42%, then T is also 42%. The total percentage of A + T is 84%. The remaining 16% is divided equally between C and G, so C = 8% and G = 8%.
3. In eukaryotic cells, DNA is found in the nucleus. In prokaryotic cells, which lack a nucleus, DNA is found in the nucleoid region.

Answer:

1. Thymine; Cytosine
2. 42%; 8%; 8%
3. nucleus; nucleoid region