Nucleic Acids and DNA Replication

Genes contain instructions for assembling

• operons

• chromatin

• protein

• mutagens

Which type of RNA functions as a blueprint of the genetic code?

• mRNA

• rRNA

• tRNA

• RNA Polymerase

The hereditary information in DNA is encoded in the sequence of

• nitrogen bases

• hydrogen bonds

• sugars

• phosphate groups

The amino acids are actually carried by the rRNA.

• This statement is True.

• This statement is False - change the underlined word to mRNA.

• This statement is False - change the underlined word to tRNA.

• This statement is False - change the underlined word to DNA.

The Figure shows the % of bases in a DNA sample. How much Thymine should you expect to find in the sample?

• 44%

• 28%

• 24%

• 22%

During DNA replication, a DNA strand that has the bases CTAGGT produces a complementary strand with the bases

• GAUCCA

• AGCTTG

• GATCCA

• TCGAAC

Who was credited for discovering the structure of DNA?

• Franklin and Wilkins

• Hershey and Chase

• Franklin and Griffith

• Watson and Crick

What does the figure show?

• anticodons

• exons

• introns

• the genetic code

In eukaryotes, DNA

• is circular.

• is located in the ribosomes.

• floats freely in the cytoplasm.

• is located in the nucleus.

In a strand of DNA, if it contains 20% of Thymine, then how much Guanine would be present?

• 30%
• 20%
• 80%
• 10%