Exam 22: Nucleic Acids and Protein Synthesis

3'-TCTCAGAG-5' is the sequence of a newly synthesized DNA segment when the template strand has the sequence 3'-AGAGTCTC-5'.

All mutations result in a change in the amino acid sequence coded for by the DNA molecule.

What is the complementary strand for the DNA strand 5'-AAGGTAGC-3'?

The point at which unwinding occurs in DNA is called the ________.

A nucleoside is formed by joining the anomeric carbon of the monosaccharide with a nitrogen atom of the base.

________ is synthetic DNA that contains segments from more than one source.

The restriction enzyme BamHI recognizes the DNA sequence GGATCC and cuts the DNA between the two G's. Given the segment of double-stranded DNA shown below the sticky ends that result from cleavage with this enzyme are

How many different trinucleotides can be formed from one guanine,one uracil,and one adenine?

Which component is not part of a nucleotide?

Nucleosides are formed by adding a phosphate group to the 5'-OH of a nucleotide.

A ________ is a complex of a single DNA molecule and proteins wrapped tightly together in a bundle.

DNA is a double-stranded nucleic acid that exists as a double helix. Which is responsible for holding the double helix of DNA together?

Which base is at the 5' end of the structure shown?

What is a nucleoside?

The sequence of three nucleotides (a triplet)that codes for a specific amino acid is called a/an ________.

The combination of a monosaccharide like ribose or deoxyribose,a base like purine or pyrimidine,and a phosphate unit is called ________.

Which amino acid sequence is coded for by the mRNA sequence 5' AAG GCU AGU GGC 3'?

Polynucleotides are named by the sequence of the bases they contain,beginning at the 3' end and using the one-letter abbreviation for the bases.

When a mutation causes a protein deficiency or results in a defective protein,and the condition is inherited from one generation to another,a genetic disease results.

Insulin,a hormone used by millions of individuals with diabetes,was the first genetically engineered protein available in significant quantities by recombinant DNA methods.