Dogs have 39 pairs of chromosomes in their somatic cells. In which part of the cell are these chromosomes replicated during the cell cycle? Select ONE correct answer.

Tags

NGSS.HS-LS1-4

What are the steps of DNA replication in order?

• 1) DNA Polymerase matches uracil to thymine and cytosine to guanine

  2) Two identical DNA double helixes are produced

• 1) DNA Polymerase matches cytosine to thymine and uracil to guanine

  2) Two separate but complementary single DNA strands are produced

• 1) DNA Polymerase matches adenine to thymine and cytosine to guanine

  2) Two identical DNA double helixes are produced

• 1) DNA Polymerase matches cytosine to thymine and adenine to guanine

  2) Two separate but complementary single DNA strands are produced

Which enzyme is responsible for unwinding or unzipping the DNA double helix during replication?

• DNA Ligase

• Helicase

• Topoisomerase

• Primase

The semi-conservative model of DNA replication suggests that each new DNA molecule consists of:

• two new strands

• one old strand, one new strand

• only one new strand

• two mixed strands

DNA Polymerase is a(n)​ ​ (a)   that works in ​ (b)   direction(s).

• enzyme
• one
• two
• carbohydrate
• cell
• nucleic acid
• lipid
• three
• four

Perform DNA replication on the following DNA strand:

A G T T C G A C T G