UNIT 4 DNA and cell cycle REVIEW

Which of the following best describes a DNA molecule?

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

Tags

NGSS.HS-LS1-1

Which 2 molecules form the sides (backbone) of the DNA ladder?

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• deoxyribose sugar and the nucleus
• deoxyribose sugar and phosphate

Nitrogenous bases are joined by which type of bond?

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

Tags

NGSS.HS-LS1-1

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

What is the complement to the DNA strand below:
5'-ATGCCAT-3'

• 5'-TACGGTA-3'
• 3'-TACGGTA-5'
• 3'-ATGGCAT-5'
• 5'-ATGGCAT-3'

During interphase

• DNA lines up in the middle of the cell and DNA attaches to spindle fibers

• 2 new nuclei form

• 2 new identical cells are created

• DNA gets copied

During prophase

• DNA lines up in the middle of the cell and DNA attaches to spindle fibers

• DNA condenses into chromosomes, centrioles and spindle fibers appear

• 2 new identical cells are created

• DNA gets copied

Tags

NGSS.HS-LS1-4

Which phase is shown here?

• metaphase

• prophase

• anaphase

• telophase

Tags

NGSS.HS-LS1-4

Which phase is shown here?

• metaphase

• prophase

• anaphase

• telophase

Tags

NGSS.HS-LS1-4

Mitosis results in the formation of...

• Two identical cells with all of the original chromosomes
• Two different cells with half of the original chromosomes
• Four identical cells with all of the original chromosomes
• Four different cells with half of the original chromosomes

Tags

NGSS.HS-LS1-4