Chromosome and Gene Disorders
What is trisomy?
The presence of an extra chromosome
Is interphase part of mitosis?
No
What occurs only in prophase 1?
crossing over
What are the products of meiosis 2?
4 haploid cells
What does it mean to be multipotent?
Able to divide and make multiple (but not all) types of cells.
What is monosomy?
What are the phases of mitosis in order?
Prophase, Prometaphase, Metaphase, Anaphase, Telophase/Cytokinesis
What occurs only in metaphase 1?
Independent Assortment
Does meiosis 2 have an interphase?
No
What are stem cells?
Undifferentiated or unspecialized cells in the body.
In what chromosome does trisomy occur in people with Down syndrome?
21 (trisomy 21)
When does the cell start to elongate?
Anaphase
What kind of cells are needed to begin meiosis?
diploid
What is the result of oogenesis?
1 egg and 3 polar bodies
What is the main difference between embryonic stem cells and adult stem cells?
Embryonic stem cells are able to differentiate into more types of cells than adult cells.
True or false, a person with triple x syndrome is infertile.
False
What does the spindle fibers attach to in prometaphase?
the kinetochore
What is the result of meiosis 1?
2 haploid cells
How many sperm are made through spermatogenesis?
4
Which is harder to find, pluripotent or multipotent stem cells?
pluripotent
What trisomy is Edward's syndrome?
Trisomy 18
How do prokaryotes reproduce?
Binary Fission
Why does one pair of chromosomes not affect the other in metaphase 1?
Independent assortment
How many chromosomes are in a polar body?
23
Which stem cell will have a higher risk of rejection when transplanted?
Adult stem cell