Which process helps to preserve the genetic information stored in DNA during DNA replication?
The replacement of nitrogen base thymine with uracil
Enzymes quickly linking nitrogen bases with hydrogen bonds
The synthesis of unique sugar and phosphate molecules for each nucleotide
Nucleotides lining up along the template strand according to base pairing rules
Which statement describes a cell process that is common to both eukaryotic and prokaryotic cells?
Both cell types carry out transcription in the nucleus
Both cell types use ribosomes to carry out translation
Both cell types assemble amino acids to carry out transcription
Both cell types carry out translation in the endoplasmic reticulum
A nucleotide does not contain...
A 5-carbon sugar
An amino acid
A nitrogen base
A phosphate group
According to Chargaff's rule of base pairing, which of the following is true about DNA?
A = T, and C = G
A = C, and T = G
A = G, and T = C
A = T = C = G
The main enzyme involved in linking individual nucleotides into DNA molecules is...
DNA protease
Ribose
Carbohydrase
DNA polymerase
During replication, which sequence of nucleotides would bond with the DNA sequence TATGA?
TATGA
ATACT
CACTA
AGTAT
The process by which the genetic code of DNA is copied into a strand of RNA is called...
Translation
Transcription
Transformation
Replication
In messenger RNA, each codon specifies a particular...
Nucleotide
Enzyme
Amino acid
Promoter
The process of making proteins on the ribosome based on instructions from messenger RNA is called...
Transcription
Transformation
Translation
Molecular biology
If a code on a DNA molecule for a specific amino acid is CTA, what would the messenger RNA codon be?
GAT
CTA
CAU
GAU