24S2 Cellular Replication

Match

Match the following phases of the cell cycle with the key events that take place:

• Cell increases in size; Cellular contents are duplicated

• DNA replication

• Cell grows more; Organelles and proteins develop in preparation for cell division

• Cell division; Formation of two identical daughter cells

• A resting state where cells are not actively dividing

G1 phase

S phase

G2 phase

M phase

G0 phase

• G1 phase

• S phase

• G2 phase

• M phase

• G0 phase

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Multiple Choice

DNA replication occurs during:

• prophase

• S phase

• G1 phase

• G2 phase

Multiple Choice

What is the correct order of DNA replication?

• 3, 4, 2, 1
• 3, 1, 4, 2
• 2, 1, 4, 3
• 3, 4, 1, 2

Multiple Choice

Which letter in the picture below depicts the leading strand in DNA replication?

• A

• C

• B

• None of the above

Match

Match the following

• Unwinds and separates the DNA strands during replication.

• Removes RNA primers and replaces them with DNA nucleotides.

• Seals the gaps between Okazaki fragments by catalysing the formation of phosphodiester bonds.

• Creates short RNA primers on the template DNA strands.

• Adds complementary nucleotides to the growing DNA strand in the 5' to 3' direction.

Helicase

DNA polymerase I

DNA ligase

Primase

DNA polymerase III

• Helicase

• DNA polymerase I

• DNA ligase

• Primase

• DNA polymerase III

Mitosis video

Match

Match the following

Prophase

Metaphase

Anaphase

Telophase

Cytokinesis

• Prophase

• Metaphase

• Anaphase

• Telophase

• Cytokinesis

Match

Match the following

• Chromosomes line up along the equator

• Cytokinesis begins; two daughter cells form

• DNA makes a copy, cell prepares for division

• Nuclear membrane dissolves, spindle forms

• Sister chromatids separate

Metaphase

Telophase

Interphase

Prophase

Anaphase

• Metaphase

• Telophase

• Interphase

• Prophase

• Anaphase

Meiosis video

Multiple Choice

What phase of meiosis is this?

• Prophase I

• Metaphase I

• Metaphase II

• Prophase II

Multiple Choice

What phase of meiosis is this?

• Metaphase II

• Prophase I

• Telophase I

• Anaphase I

Multiple Choice

What phase of meiosis is this?

• Metaphase II

• Prophase II

• Telophase I

• Anaphase I

Multiple Choice

What phase of meiosis is this?

• Telophase II

• Anaphase II

• Telophase I

• Anaphase I

Multiple Choice

What phase of meiosis is this?

• Metaphase I

• Prophase II

• Telophase I

• Anaphase II

Multiple Choice

This image shows chromosomes during prophase 1 of meiosis. Which of the following correctly describes the process shown?

• segregation of sister chromatids
• condensation and segregation of alleles
• mutationin which the DNA content of the gene is altered
• crossing - over in which alleles are exchanged

Categorize

Options (12)

occurs in somatic cells

results in two daughter cells

occurs in germ cells

results in four daughter cells

daughter cells are genetically identical

daughter cells are genetically unique

produces gametes

used for growth and repair

daughter cells are diploid

daughter cells are haploid

daughter cells have the same number of chromosomes as the parent cell

daughter cells have half the number of chromosomes as the parent cell

Organize these options into the right categories

Mitosis

Meiosis