Meiosis
During meiosis a _____ cell undergoes division, producing a ______ cell.
Germline... gamete
A cell has a diploid number of chromosomes of 16. How many chromosomes would be found in their somatic cells?
16 chromosomes
Division of the nucleus is known as....
Division of the cytoplasm is known as...
Mitosis/Meiosis
Cytokinesis
During this phase of the cell cycle organelles and proteins needed for daughter cells are produced
G2
Mitosis begins with a (diploid/haploid) cell and ends with a (diploid/haploid) cell.
Meiosis begins with a (diploid/haploid) cell and ends with a (diploid/haploid) cell.
Mitosis... diploid... diploid
Meiosis... diploid... haploid
What is a tetrad. Draw an example
Tetrads are the four chromatids present in a pair of homologous chromosomes. They form during Meiosis 1.
Mitosis is used for what in unicellular eukaryotes?
Mitosis is used for what in multicellular eukaryotes?
- growth and repair, development
Cleavage furrow moves (in/out)
Cell plate grows (in/out)
In
Out
During this phase of the cell cycle, chromosomes go from chromatids to sister chromatids
S Phase
The miotic spindle is comprised of what three things:
1. centrosomes
2. microtubules
3. centrioles
What two things occur during Meiosis that increase genetic diversity?
1. Crossing Over
2. Independent Assortment
(true/false): the daughter cells produced through mitosis are non-identical
False - they are identical
How does plant cell cytokinesis differ from animal cell?
Animal cell - forms a clevage furrow
Plant cell - form a cell plant --> cell wall
What is the correct order of the cell cycle?
G1 --> S --> G2 --> M (MITOSIS & CYTOKINESIS)
During Meiosis 1, microtubules bind to ______ on _______ chromosomes
During Mitosis, microtubules bind to _______ on ________ chromatids
kinetochores... homologous
kinetochores... sister
An organism has a diploid number of chromosomes of 10. How many chromosomes would be found in their somatic cell? How many chromosomes would be found in their gametes?
Somatic = 10 (diploid)
Gametes = 5 (haploid)
In the phases of Mitosis, when do we have duplicated chromosomes and when do we have single, unduplicated chromosomes?
Duplicated - prophase, metaphase
Unduplicated - anaphase, telophase
Describe the process of plant cell cytokinesis?
1. plant cell wall vesicles move material into the middle of the cell
2. a cell plate forms
3. reaches edges of membrane forming a cell wall
GO
You get a paper cut on your finger. These cells will be replaced through...
Mitosis
Describe the relationship between germline cell, zygote, gametes, 2 daughter cells
Germline --> 2 daughter haploid cells --> gametes --> zygote
In terms of chromosomes structure (sister chromatids/tetrads), which is more like Mitosis, Meiosis 1 or 2.
Meiosis 2 is more like Mitosis, as it involves the movement and separation of chromosomes made up of only sister chromatids. Meiosis 1 involves the pairing up/movement/separation of tetrads
Animal cell cleavage furrow is made of?
Myosin & actin
Interphase occurs before:
1. Mitosis
2. Meiosis 1
3. Meiosis 2
Meiosis 1 and Mitosis
In terms of genetic diversity, which is more like Mitosis, Meiosis 1 or Meiosis 2
Meiosis 2 as it does not involve crossing over or independent assortment, both of which increase genetic diversity.