Question

question 1
1 pts
which of the following is not true about rna?
can form three - dimensional structures
typically forms strands millions of bases long
can be copied from template dna
brings amino acids to growing polypeptide chains

Explanation:

1. Analyze each option:

• "Can form three - dimensional structures": RNA molecules, like tRNA, can fold into complex three - dimensional structures. So this statement is true.
• "Typically forms strands millions of bases long": DNA typically forms long strands (millions of bases), while RNA strands are usually much shorter (e.g., mRNA is a copy of a gene, which is a small part of DNA, and tRNA, rRNA are also relatively short). So this statement is not true about RNA.
• "Can be copied from template DNA": During transcription, RNA is synthesized from a DNA template. So this statement is true.
• "Brings amino acids to growing polypeptide chains": tRNA (a type of RNA) is responsible for bringing amino acids to the ribosome during translation to form polypeptide chains. So this statement is true.

Answer:

B. Typically forms strands millions of bases long