Quiz 1. Bio-sequences

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Q1. If we know that 50% of a given double-stranded DNA sequence is A, what are the proportions for the rest of the nucleotides?
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2 points

0% G, 50% T, 0% C

40% T, 5% G, 5% C

50% G, 25% C, 25% T

Insufficient information

Q2. If we know that 10% of a given protein sequence is amino acid Leu, what is the proportion of Phe residues in the same sequence?
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2 points

10%

20%

Insufficient information

Genetic code

Q3. Which pair of the m-RNA sequences encodes for the most similar pair of proteins? *

2 points

UUU CCU UUA and UUA CUU UUC

UUU UUG CUA and UUC CUU UUA

GUC CCC ACU and CAU AAA GGG

Genetic code

Q4. The protein synthesis starts by translating the following m-RNA sequence from the first codon.

CUGGUUAAUUAAUUG

What is the length (in the number of aminoacids) of the synthesized protein? Write a single integer in the answer box.

2 points

Q5. Read sequence from the Sanger gel experiment results. Write DNA sequence in the answer box using all capital letters. *

2 points

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