Show:
Mitosis
Meiosis
Gametes
Karyotypes and Disorders
Cell Cycle
100
If a cell starts mitosis with 64 chromosomes, how many chromosomes will each daughter cell have?
64
100
If a cell (oocyte or spematocyte) starts meiosis with 64 chromosomes, how many chromosomes should each daughter cell have?
32
100
Name the two gametes.
Egg & Sperm
100
Describe how chromosomes are organized on a karyotype? *Specifically referring to the size
From big to small
100
Name the step in the cell cycle where DNA replicates and the cell grows.
Interphase
200
Which stage of mitosis involves the x - shaped lining up in the middle of the cell?
Metaphase
200
Does meiosis create cells that are genetically different or genetically identical to the parent cell?
Different
200
How many chromosomes should a normal human gamete have?
23
200
What are the first 22 pairs of chromosomes called?
Autosomes
200
Normal body cells (diploid cells) are also known as s_______________ cells.
Somatic
300
Which stage of mitosis involves the condensing of chromatin (spaghetti DNA) into x-shaped chromosomes?
Prophase
300
Does meiosis create haploid or diploid cells?
Haploid
300
WHERE in the human body are gametes formed?
Testes and Ovaries
300
If a zygote is formed with the genetic makeup 45YO, explain why it is not viable.
You must have an X to live
300
When a cell is supposed to enter into G0 and it does not, what might occur?
Cancer
400
Which phase of mitosis occurs when a new nucleus forms around a each set of chromosomes after they have been pulled apart by the spindle fibers?
Telophase
400
Are gametes haploid or diploid cells?
Haploid
400
Once the egg and the sperm unite, what process creates the rest of the fetus?
Mitosis
400
Trisomy 21 is more commonly known as what? What does trisomy mean?
Down Syndrome Having 3 copies of a chromosome instead of 2
400
What is the difference between cytokinesis in a plant cell and an animal cell?
In plant cells, a cell wall forms In animal cells, a cleavage furrow forms.
500
List the four stages of mitosis and draw a picture (use the back of of your sheet).
Prophase Metaphase Anaphase Telophase
500
Name 3 sources of genetic variation during meiosis.
Crossing over Independent Assortment (during metaphase 1) Random Fertilization
500
Spermatogenesis makes ____ but oogenesis makes _________________.
4 sperm 1 egg and 3 polar bodies
500
Name 2 genetic disorders where the person has the wrong number of chromosomes (and write the genetic diagnosis).
Lots of answers
500
What is asexual reproduction? Give 2 examples.
One organism becoming two. Budding, mitosis, binary fission.