acid nucleic

Which is of the following is NOT one of the elements found in all nucleic acids?

• C

• P

• S

• N

Which of the following molecule is NOT a nucleic acid:

• ATP

• mRNA

• Polypeptide

• DNA

what is this molecule?

• A cytosine base

• A ribose sugar

• A uracil base

• A deoxyribose sugar

Identify the different parts of this nucleotide:

• Red= phosphate group; Blue= nitrogenous base; Yellow= ribose sugar

• Red= phosphate group; Blue= deoxyribose sugar; Yellow= nitrogenous base

• Red= deoxyribose sugar; Blue= nitrogenous base; Yellow= phosphate group

• Red= phosphate group; Blue= ribose sugar; Yellow= nitrogenous base

In which direction does the RNA polymerase move along the template strand of the DNA?

• from 3' to 5'

• from 5' to 3'

• It can move in both directions

• It depends on the strands

Which type of force holds the two strands of DNA together?

• Hydrogen bonds

• Covalent bonding

• Ionic bonding

• Hydrophobic interactions

During transcription if the coding strand contains the following sequence:

5'-ATGCCCTACGCACTG-3'

What should be the sequence on the mRNA?

• 5'-TACGGGATGCGTGAC-3'

• 3'-AUGCCCUACGCACUG-5'

• 5'-UACGGGUACGCACUG-3'

• 5'-AUGCCCUACGCACUG-3'

Which name is given to a triplet of nucleotides on the mRNA, with can be associated with an amino acid?

• a genetic code

• a codon

• an anticodon

• a condon

The genetic code is redundant; what does it mean?

• Each amino acid can only associated with one specific codon.

• Each codon can be associated with several different amino acids.

• Most amino acids can be associated with more than one codon.

• All possible codons can be associated with at least one amino acid.

During which process can we identify a 'lagging strand'?

• DNA replication

• Translation

• Transcription

• Mitosis