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Biology 1100 Exam 2 (Study Guide: Mitosis and Meiosis) Questions and Answers $8.49
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Biology 1100 Exam 2 (Study Guide: Mitosis and Meiosis) Questions and Answers
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What reproduces through cell division? Prokaryotes and single celled eukaryotes reproduce asexually through cell division What requires the entire genome to be replicated? o In prokaryotes: binary fission o In eukaryotes: mitosis What do Eukaryotic cells use mitosis for? ♣ Growth ♣ Repair dam...

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  • September 23, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • biology 1100 exam 2 study guide mitosis and meio
  • what reproduces through cell division prokaryote
  • what requires the entire genome to be replicated

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  • ECU BIO 1100
  • ECU BIO 1100

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Biology 1100 Exam 2 (Study Guide:
Mitosis and Meiosis) Questions and
Answers
What reproduces through cell division? ✅Prokaryotes and single celled eukaryotes
reproduce asexually through cell division

What requires the entire genome to be replicated? ✅o In prokaryotes: binary fission
o In eukaryotes: mitosis

What do Eukaryotic cells use mitosis for? ✅♣ Growth
♣ Repair damage tissues

What is Mitosis not used for? ✅form gametes (sex cells-sperm and eggs

When is DNA divided among several chromosomes? ✅In Eurkaryotes
♣ Each chromosome = one strand of dna

What happens before cell division? ✅♣ Chromosomes not visible
♣ Dna loosely arranged in nucleus
♣ Dna condenses into chromosomes

Explain eukaryotic Chromosomes ✅o 1 chromosomes = 2 sister chromatids
♣ Identical molecules of DNA as a result of DNA replication
♣ 1 molecule of DNA per chromosome

Which organisms have 2 sets of chromosomes? ✅Eukarotype
♣ One from mom, one from dad (homologous chromosomes)

What does each homologous chromosomes contain? ✅DNA with the same genes

If you have 2 sets of chromosomes ✅diploid

Explain factors of human Chromosomes? ✅o Humans typically have 46 chromosomes
o 2 sets of 23 homologous chromosomes
o There are cases of atypical number of chromosomes

What is the basis of mitosis? ✅o Begins with one parent cell
o ALL of the DNA is replicated
o In eukaryotes - DNA condenses into chromosomes
o Cell divides, and each daughter cell gets a set of DNA that is identical

, What is the first step of mitosis? ✅One cell divides into two 2 identical daughter cells

What is the second step of mitosis? ✅Chromosomes finish condensing, nuclear
membrane breaks down (interphase to mitosis)

What is the third step to mitosis? ✅Chromosomes line up at the center of the cell

What is the fourth step to mitosis? ✅Sister chromatids separate

What is the fifth step to mitosis? ✅New nuclear membranes begin to form

What is the final step to mitosis? ✅Cytokinesis: cytoplasm is divided into the two
daughter cells

What is the cell cycle? ✅Alternation of activities between processes related to growth
and processes related to cell division

How many phases are in the cell cycle? ✅Two
1.Interphase
2.Cell division (mitosis and cytokinesis )

What is Interphase? ✅-90% of the cell cycle
-Cell growth
-Regular cellular functions
-DNA replication
-Chromosomes begin to condense

What is the overview of mitosis? ✅Chromosomes finish condensing, nuclear
membrane breaks down

Chromosomes line up at the center of the cell

Sister chromatids separate

New nuclear membranes begin to form

Cytokinesis: cytoplasm is divided into the two daughter cells

Explain Cell Cycle Regulation ✅Most cells have the ability to divide a lot

-Checkpoints: parts of the cell cycle that prevent the cell from continuing on in the cycle
until the last process is complete. (end of interphase right before mitosis is about to
start)

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