Bio S1 Final Review Day 6

What are the parts of the chromosome shown in the image?

a

b

Chromatid

Centromere

Chromatin

The difference between chromatin and chromosome is chromatin is​ (a)   that is​ in ​ (b)   and chromosome is​ ​ (c)   that is in ​ (d)   .

• not tightly wound DNA
• non-dividing cells
• tightly wound DNA
• dividing cells

What happens if the cell gets too big?

• The cell will no longer function properly.

• The cell will start producing more energy.
• The cell will split into two smaller cells.
• The cell will grow larger and become stronger.

Reorder the following for mitosis

• Telophase

• Metaphase

• Prophase

• Anaphase

Match the following for phases in mitosis

Groups:

(a) Prophase

,

(b) Metaphase

,

(c) Anaphase

,

(d) Telophase

• Chromosomes become single stranded

• 
• DNA condenses into chromosomes

• 
• 2 new nuclei formed

• 
• Microtubules attach to the centromeres

• Nucleus breaks down

• Chromosomes line up in the middle of the cell

• Chromosomes return to chromatin

• 
• Sister chromatids are pulled apart and move to opposite sides

Match the following for cell division.

Groups:

(a) Interphase

,

(b) Mitosis

,

(c) Cytokinesis

• The cell actually divides into 2 new cells

• Nucleus is present

• 
• 
• DNA is chromatin

• In animal cells, the cell membrane pinches off

• PMAT

• 
• In plant cells, a cell plate forms

• Before mitosis

• The cell makes 2 new nuclei

Is interphase part of mitosis?

• Yes, interphase is a part of mitosis

• No, interphase is a part of cell division.

Is anaphase part of mitosis?

• Yes, interphase is a part of mitosis

• No, interphase is a part of cell division.

Is telophase part of mitosis?

• Yes, interphase is a part of mitosis

• No, interphase is a part of cell division.

Is cytokinesis part of mitosis?

• Yes, interphase is a part of mitosis

• No, interphase is a part of cell division.