Cell cycle Mitosis/Meiosis

What stage of interphase does DNA replication occur?

• G1

• S

• G2

What do the blue and yellow arrows represent

• The blue arrow is prophase and the yellow is interphase

• The blue arrow is mitosis and the yellow arrow is meiosis

• The blue arrow is interphase and the yellow is mitosis

• The blue arrow is meiosis and the yellow is prophase

Tags

NGSS.HS-LS1-4

Crossing over occurs during prophase I of meiosis. Which statement about crossing over is true?

• RNA translation occurs in the smooth endoplasmic reticulum

• Crossing over takes place in backterial cells

• Crossing over produces genetically identical daughter cells

• Crossing over provides genetic diversity in eukaryotic cells

Tags

NGSS.HS-LS3-2

Embryonic cells each have an identical copy of DNA. If the DNA in all cells is identical, how do the embryonic cells become specialized (ex: Muscle cell, brain cell, liver cell, etc)

• Each cell contains only the active parts of the DNA needed for the cell type

• Each cell type has only one chromosome containing the DNA needed for that cell type

• Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to cell variety

Tags

NGSS.HS-LS1-4

NGSS.HS-LS1-1

If a person has leukemia, they are given a medicine that inhibits (stops) DNA synthesis. Which phase of the cell cycle will be most affected by this medicine?

• G1

• S

• G2

• M phase

Tags

NGSS.HS-LS1-4

Which of the following are in order from smallest to largest

• Cells -> tissue -> organ -> organ system

• Cells -> Organ system -> tissue -> organ

• Organ system -> Organ -> Tissue -> Cell

• Tissue -> organ system -> Cell -> Organ

Tags

NGSS.HS-LS1-2

What does the image demonstrate

• Punnet squares

• Crossing over

• Metaphase

• Dna replication

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

During prophase I crossing over occurs and genetic material is exchanged between homologous chromosomes. How is this important

• Increases genetic variation

• Reduces the diploid number to the haploid number

• Increases the haploid number to the diploid number

• Reduces the probability of mutations

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

In mitosis, one parent cell -

• Forms two identical daughter cells

• Forms four identical daughter cells

• Forms two genetically diverse daughter cells

• Forms four genetically diverse daughter cells

Tags

NGSS.HS-LS1-4

G1, S, and G2 are all phases of

• Mitosis

• Meiosis

• Interphase

• Prophase

Tags

NGSS.HS-LS1-4