Molecular genetics UE Past Papers Questions.

An antibiotic interferes with the ability of the ribosome to move. What effect would exposure to this chemical have on a bacterial cell?

1. Protein synthesis will be affected
2. The protein synthesized will be shorter than normal
3. The protein synthesized will be longer than normal
4. No proteins will be produced
5. All of the above

Answer / Solution

UNSOLVED

The translation process in eukaryotes requires all of the following, except

1. ribosomes
2. RNA polymerase
3. aminoacyl-tRNA synthetase enzymes
4. ribose sugar
5. B and D

Answer / Solution

UNSOLVED

Amino acids have on average a molecular weight of 110 daltons. An open reading frame of 90 bases might encode a protein of

1. 3.3 kDa
2. 33000 Da
3. 33 kDa
4. 330 daltons
5. 99 kDa

Answer / Solution

UNSOLVED

When RNA is being made, the RNA base__always pairs with the base __ in DNA.

1. A….U
2. C....G
3. U….A
4. T…..A
5. B and C

Answer / Solution

UNSOLVED

How many nucleotides are needed to code for a protein with 45 amino acids  if it includes equivalent of stop codon on mRNA?

1. at least 135
2. at least 1,353
3. at least 450
4. at least 138
5. at least 1,350

Answer / Solution

UNSOLVED