With respect to transcription describe the relationship and sequence correspondence of the RNA transcript and the DNA template strand. Describe the relationship and sequence correspondence of the mRNA transcript to the DNA coding strand.

If thymine makes up 21% of the DNA nucleotides in the genome of a plant species, what are the percentages of the other nucleotides in the genome?

Why do you think discoveries in genetics have been recognized with so many Nobel Prizes?

What reactive chemical groups are found at the 5' and 3' carbons of nucleotides? What is the name of the bond formed when nucleotides are joined in a single strand? Is this bond covalent or noncovalent?

A portion of a polypeptide contains the amino acids Trp-Lys-Met-Ala-Val. Write the possible mRNA and template-strand DNA sequences. (Hint: Use A/G and T/C to indicate that either adenine/guanine or thymine/cytosine could occur in a particular position, and use N to indicate that any DNA nucleotide could appear.)

The following segment of DNA is the template strand transcribed into mRNA:

   5'-...GACATGGAA...-3'

What is the amino acid sequence produced by translation?

The following segment of DNA is the template strand transcribed into mRNA:

   5'-...GACATGGAA...-3'

What is the sequence of mRNA created from this sequence?

Fill in the missing nucleotides (so there are three per block) and the missing amino acid abbreviations in the graphic shown here.