DNA quiz

• Biologie
• Middelbare school
• vwo
• Leerjaar 4

DNA is a protein

1. True
2. False

How many nucleotides are 1 codon?

1. 1
2. 3
3. 6
4. 9

DNA contains 4 bases: adenine, guanine, cytosine, uracil

1. True
2. False

The molecular shape of DNA is maintained by hydrogen bonds between complementary base pairs

1. True
2. False

DNA is a double helix

1. True
2. False

Transcription, the transfer of information from DNA to RNA, occurs only when DNA is replicating

1. True
2. False

In messenger RNA (mRNA) there are codons, each consisting of three bases

1. True
2. False

Transfer RNA (tRNA) carries specific amino acids to ribosomes where complementary anticodons on tRNA match codons on mRNA

1. True
2. False

The process whereby RNA is synthesised from DNA is called:

1. Transcription
2. Translation
3. Replication
4. Synthesis

What is the tRNA anti-codon for the 'AUG' codon present in the mRNA?

1. UAC
2. ATG
3. AUG
4. CGC

If 20% of the nucleotides are thymine in a DNA molecule, what percentage is Adenine in this molecule?

1. 50%
2. 25%
3. 20%
4. 10%

Which DNA strand is used for RNA synthesis?

1. Non coding strand
2. Coding / template strand

Transcription takes place in the (1) and translation takes place in the (2)

1. Cytoplasm/Nucleus
2. Nucleus/Cytoplasm
3. Ribosomes/Nucleus
4. Cytoplasm/Ribosomes

Introns are (1) Exons are (2)

1. Expressed/Non-coding
2. Non-coding/Proteins
3. RNA/Proteins
4. Non-coding/Expressed

A codon consists out of .. nucleotides

1. 2
2. 4
3. 6
4. 3

A poly-adenine tail and guanine cap are added during:

1. Translation
2. Transcription
3. Processing
4. Synthesis

Translation is the process from:

1. DNA -> RNA
2. mRNA->Protein
3. pre-mRNA -> mRNA
4. Protein->mRNA

The DNA coding strand is:
TGCAAA
What is the pre-mRNA sequence:

1. UGCAAA
2. TGCAAA
3. ACGUUU

Which strand is used to encode the protein?

1. mRNA
2. tRNA
3. rRNA
4. bRNA