AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of RNA conveys genetic information from DNA and takes it to the ribosome?
A
mRNA
B
tRNA
C
rRNA
D
nRNA
Explanation: 

Detailed explanation-1: -Some other molecule was therefore needed to convey genetic information from DNA to the sites of protein synthesis (the ribosomes).

Detailed explanation-2: -The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.

Detailed explanation-3: -In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription.

Detailed explanation-4: -tRNAs (transfer RNAs) carry amino acids to the ribosome. They act as “bridges, ” matching a codon in an mRNA with the amino acid it codes for.

There is 1 question to complete.