DNA, RNA and Protein

​Based on the given data table of two bacteria, which of the following statements are true? (mark all that apply)

• S. pneumoniae has the most thymine in its nucleus.

• Both bacteria have less guanine than adenine.

• S. pneumoniae's amount of cytosine is more similar to guanine than thymine.

• E. coli's greatest amount of nitrogen bases is adenine.

Which of the following DNA nucleotides are paired with the correct corresponding DNA nucleotide? (mark all that apply)

• Adenine with Thymine

• Guanine with Cytosine

• Thymine with Cytosine

• Adenine with Uracil.

• Uracil with Thymine

10. Is there any beneficial effect of mutation? Why?

Many enzymes are involved in DNA replication. Which is the correct order of enzymes involved in DNA replication from beginning to end?

• Helicase, DNA primase, DNA polymerase, Ligase

• RNA primase, Helicase, DNA polymerase, Ligase

• Helicase, RNA primase, DNA polymerase, Ligase

• DNA primase, Helicase, RNA polymerase, Ligase

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Which letter in the picture below depicts the lagging strand in DNA replication?

• Letter A since it is copied from 5' to 3'

• Letter A since it is copied from 3' to 5'

• Letter B since it is copied from 3' to 5

• Letter B since it is copied from 5' to 3'

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

You are given the DNA strand 5'ATGCTCAGCTGA3'. What is the corresponding DNA strand?

• 5'UACGAGUCGACU3'

• 5'TACGAGTCGACT3'

• 3'UACGAGUCGACU5'

• 3'TACGAGTCGACT5'

An enzyme called ____

makes a nick in the double helix.

• RNA

• DNA REPLICATION

• DNA GYRASE

• DNA HELICASE

In eukaryotes, which organelle is DNA usually found in?

• cell membrane

• vacuole

• chloroplast

• nucleus