DNA and Protein Synthesis Test Review

Front

What are the components of a nucleotide in DNA and RNA?

Back

A nucleotide consists of a phosphate group, a sugar (deoxyribose in DNA and ribose in RNA), and a nitrogen base.

Front

Where is DNA located in eukaryotic cells?

Back

DNA is located in the nucleus of eukaryotic cells.

Front

What are codons and anticodons?

Back

Codons are sequences of three nucleotides in mRNA that specify an amino acid, while anticodons are complementary sequences in tRNA that pair with codons during translation.

Front

Who used X-ray diffraction to study the structure of DNA?

Back

Rosalind Franklin used X-ray diffraction to obtain information about the structure of DNA.

Front

What is the mRNA sequence produced from the DNA sequence GGACTA during transcription?

Back

The mRNA sequence produced is CCUGAU.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA serves as a template for translating genetic information into proteins by carrying the code from DNA to the ribosome.

Front

What is the function of tRNA in protein synthesis?

Back

tRNA transports specific amino acids to the ribosome and matches them to the corresponding codons in mRNA.

Front

What are the four nitrogen bases found in DNA?

Back

The four nitrogen bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains deoxyribose sugar and thymine, while RNA is single-stranded and contains ribose sugar and uracil instead of thymine.

Front

What is transcription in the context of protein synthesis?

Back

Transcription is the process of copying a segment of DNA into mRNA, which occurs in the nucleus.