Question

exit ticket ~ 3 min highlight the correct answer 1. a simple diagram of a dna molecule is shown: which of the following is represented by x? a. an amino acid c. a nucleotide base pair b. an mrna bond d. a ribosome binding site 2. which of the following describes how dna determines genetic inheritance? a. a single nucleotide codes for a genetic trait b. a pair of nucleotides codes for a genetic trait c. a long sequence of nucleotides in a specific order codes for a genetic trait.

Explanation:

1. DNA is a double - helix structure composed of nucleotide base pairs. Amino acids are the building blocks of proteins, mRNA is involved in transcription and translation (not part of the DNA structure shown), and ribosome binding sites are on mRNA (not on the DNA diagram). So, X represents a nucleotide base pair.
2. A single nucleotide or a pair of nucleotides is too simple. A long sequence of nucleotides in a specific order (a gene) codes for a genetic trait.

Answer:

1. C. a nucleotide base pair
2. C. A long sequence of nucleotides in a specific order codes for a genetic trait.