IB Mitosis, Meiosis, Genetics, Biotech Review

Each identical side of a chromosome is a sister chromatid

• centromere

• chromatin

• centriole

• chromatid

Tags

NGSS.HS-LS1-4

The haploid number of human chromosomes is

• 11

• 12

• 23

• 46

Tags

NGSS.HS-LS3-1

Histones.... (3)

• are proteins wound up in DNA

• critical to maintaining the shape of chromosomes

• aid in the tight packing of DNA

• make up more than 50% of prokaryotic DNA

• are an essential enzyme during replication

What is a gene?

• A bundle (like a hot dog bun) that the DNA is packed into
• something inside the nucleus
• a piece of DNA
• all of your DNA

Tags

NGSS.HS-LS1-1

The chromosome of a bacterium...

• occurs in multiple pairs within the cell
• is wrapped around proteins
• has a circular shape
• is found within the nucleus

The cell cycle is regulated by...

• cyclins
• cyclin dependent kinases
• histones
• cyclin dependent kinases & cyclins

Tags

NGSS.HS-LS1-4

The specific molecular control signal substances in the cytoplasm of cells are proteins known as.....

• kinases & cyclins
• enzymes & cytosines
• helicases & ligases
• polymerases & primases

When a cell is not actively dividing and is getting on with it's regular cell duties, it is in which phase?

• interphase
• anaphase
• prophase
• telophase

What must a cell do in late interphase before mitosis?

• perform replication
• perform transcription
• perform translate
• nothing at all

Which phase?

• Prophase
• Metaphase
• Anaphase
• Telophase

Tags

NGSS.HS-LS1-4