MỚI
Cỡ chữ
bảng tínhTranslation Quiz 2
Total câu hỏi: 20
Worksheet time: 11mins
Genes are located on chromosomes which are composed of
DNA
RNA
ATP
DTP
Which statement correctly describes proteins?
A Polypeptide chains are formed in the nucleus. D Each nucleotide base is encoded into a single amino acid.
B DNA is the original source of protein structure.
C The function of a protein is determined by the RNA.
D Each nucleotide base is encoded into a single amino acid.
In order to digest milk, the human body must manufacture a protein called lactase. When the digestive system requires lactase, it manufactures the protein based on information stored in what molecule?
DNA
ATP
Oxygen
Carbon Dioxide
The nucleus contains DNA. Which statement BEST describes how DNA controls the working of the cell?
A It codes for proteins.
B It inhibits division of cells.
C It helps in energy transformation.
D It regulates traffic in and out of the cell.
The overall roles of DNA and RNA are illustrated
DNA ----RNA--------Protein
Which process is represented from RNA to protein?
transcription
replication
translation
During protein synthesis, mRNA is translated into three-base sequences representing amino acids. What signals the ribosome to begin translating the mRNA into a new amino acid sequence?
A a codon
B enzymes
C mutation
D temperature
The diagram shows a cellular process in which a double-stranded molecule of nucleic acid gives rise to a singles stranded molecule of nucleic acid.
Which BEST describes the process shown?
A DNA is transcribed into RNA.
B RNA is transcribed into DNA.
C DNA is translated into RNA.
D RNA is translated into DNA
How many basic units of information in a DNA molecule are required to encode a single amino acid?
1
2
3
4
An RNA sequence includes 12 bases. What is the maximum number of amino acids for which this sequence could code?
2
3
4
12
An RNA sequence includes 15 codons. How many amino acids does this sequence encode?
3
5
15
45
For which amino acid sequence does the RNA sequence UUUCCUCAA code?
A leucine-threonine-glutamic acid D serine-histidine-glutamine
B phenylalanine-proline-glutamine
C phenylalanine-proline-histidine
D serine-histidine-glutamine
For which amino acid sequence does the RNA sequence AUAACU code?
A isoleucine-threonine
B isoleucine-serine
C methionine-threonine
D methionine-serine
The DNA sequence ACTCG produces which mRNA sequence during transcription?
A TGAGC
B UGAGC
C ACTCG
D ACUCG
Transcription of the sequence TTAAG produces which sequence?
A TTAAG
B UUAAG
C AAUUC
D AATTC
How many amino acids can be represented by a single 3-base DNA sequence?
1
2
3
6
What is the correct amino acid sequence that is coded from the RNA sequence UGGCAGAUU?
A val-gly-trp D trp-gln-ile
B met-his-ser
C tyr-pro-asn
D trp-gln-ile
The complementary mRNA strand of a gene segment is CUGCGGCAGGUGGUGUAG.
How many amino acids will result from the translation of the given mRNA strand?
5
6
8
16
Which of these shows the correct order for the central dogma of molecular biology?
A DNA to protein to RNA
B RNA to DNA to protein
C protein to DNA to RNA
D DNA to RNA to protein
What always happens when the nucleotides in a strand of DNA are rearranged?
A The information on the strand changes. .
B The mass of the strand changes.
C The organism dies
D The organism thrives.
Two segments of DNA have the exact same number of each nucleotide. Do they necessarily code for the same protein?
A Yes, hereditary information is passed though the number of cytosine nucleotides in a gene.
B Yes, hereditary information is passed through the percentage of each nucleotide in a gene.
C No, hereditary information is passed through the order of the nucleotides in a gene.
D No, hereditary information has no relationship to the nucleotides in a gene.
