Onion Root Tip

Why are onion roots used for viewing mitosis?

• They have a large number of chromosomes

• They have easily observable cells

• They have actively dividing cells at the meristem

• They have stained chromosomes

Tags

NGSS.HS-LS1-4

Which region of an onion root tip contains cells that cover and protect the underlying growth region?

• Root cap

• Region of cell division

• Region of cell elongation

• Meristem

What is the purpose of staining chromosomes in onion root tip squash?

• To make the chromosomes more easily observable

• To separate the sister chromatids

• To facilitate the formation of a new nuclear membrane

• To identify the formation of the cell plate

Tags

NGSS.HS-LS1-4

What occurs at the region of cell elongation in an onion root tip?

• protection of the underlying growth region

• actively divide cells

• cells increasing in size

• the formation of a new nuclear membrane

What is the purpose of the root cap in an onion root tip?

• To cover and protect the underlying growth region

• To actively divide cells

• To increase the size of cells

• To facilitate the formation of a new nuclear membrane

Tags

NGSS.MS-LS1-5

Look at the picture. What phase of mitosis is shown?

• Interphase

• Prophase

• Metaphase

• Anaphase

• Telophase

Look at the picture. What phase of mitosis is shown?

• Interphase

• Prophase

• Metaphase

• Anaphase

• Telophase

Tags

NGSS.HS-LS1-4

Which stage of mitosis involves the chromosomes coming to rest along the center plane of the cell?

• Prophase

• Prometaphase

• Metaphase

• Anaphase

What is the purpose of the cell plate in telophase in plant cells?

• To produce new chromosomes

• To separate the sister chromatids

• To ensure each daughter cell receives a copy of each chromosome

• To form the new cell wall between the two cells

What is the purpose of the Feulgen stain in viewing chromosomes?

• To make the chromosomes more easily observable

• To separate the sister chromatids

• To facilitate the formation of a new nuclear membrane

• To identify the formation of the cell plate