Question

3 which nitrogenous bases are needed to complete the dna strand pictured below? give your answer in order.

cytosine, guanine, thymine, adenine
adenine, thymine, guanine, cytosine
thymine, adenine, guanine, cytosine
adenine, thymine, cytosine, guanine

4 when one dna molecule is replicated, the result is two dna molecules. what is true of the second dna molecule?
it is twice the size of the first dna molecule
the sequence of bases, from top to bottom, is opposite the sequence in the first dna molecule
it is identical or nearly identical to the first dna molecule
it is half the size of the first dna molecule

Explanation:

1. En la estructura del ADN, adenina (A) se empareja con timina (T) y citosina (C) con guanina (G). Analizando las bases mostradas en el ADN y aplicando las reglas de emparejamiento, se determina la secuencia correcta de bases.
2. La replicación del ADN es un proceso semi - conservativo donde cada molécula de ADN resultante es idéntica o casi idéntica a la molécula original.

Answer:

1. adenine, thymine, guanine, cytosine
2. It is identical or nearly identical to the first DNA molecule