Mitosis, Mieosis, and DNA

Chargaff's rule states the following for DNA:

• A=T

  G=C

• G=T

  A=C

• A=U

  G=C

• U=T

  A=C

If the DNA sequence is A-T-C-T-A-T in one polynucleotide chain, what would the complimentary chain read?

• T-A-G-A-T-A

• U-A-G-A-U-A

• A-T-C-T-A-T

• T-A-T-U-C-A

Watson and Crick are credited with the discovery and description of the DNA

• deoxyribose sugar.

• phosphate group.

• double helix.

• hydrogen bonds.

  All of the following occur during DNA replication EXCEPT

• separation of parental DNA strands.

• synthesis of totally new double-stranded DNA molecules.

• use of DNA polymerase enzymes.

• use of parental DNA as a template.

Tags

NGSS.HS-LS3-2

Which of the following ENZYME is NOT involved in the DNA replication process?

• DNA helicase

• DNA ligase

• DNA polymerase

• DNA replicase

What is the name of the enzyme that removes the RNA primer from the DNA strand during DNA Replication?

• DNA polymerase I

• DNA polymerase III

• DNA ligase

• DNA helicase

A DNA sequence of 5'-A-C-G-T-A-C-G-T-3' is altered to 5'-A-C-G-C-A-C-G-T-3'. This could happen as a result of a

• nucleotide substitution mutation

• insertion mutation

• deletion mutation

• inversion.

Tags

NGSS.HS-LS3-2

The elongation of the leading strand during DNA synthesis

• occurs in the 3' → 5' direction.

• depends on the action of DNA polymerase.

• progresses away from the replication fork.

• produces Okazaki fragments.

cell division produces two daughter cells that are genetically identical. This type of cell division is important for all of the following functions EXCEPT ________.

• growth of a multicellular organism

• cell replacement

• production of sperm and egg

• asexual reproduction

Tags

NGSS.HS-LS1-4

Which of the following help(s) to hold the DNA strands apart while they are being replicated?

• primase

• double-strand binding proteins

• single-strand binding proteins

• DNA polymerase