Vocabulary
True or False: A male has a X and a Y chromosome.
What is True
A pair of chromosomes are called _____________
What are homologous chromosomes?
During which phase does crossing over occur?
What is Prophase I
How many new cells are formed through the process of meiosis?
What is 4
True or False: The q arm is the short arm.
What is False
The exchange of DNA between homologous chromosomes during Prophase I is called __________ ____________
What is crossing over
After Meiosis, are the new cells different or the same as the parent cell?
What is different
The number of chromosome PAIRS in a normal human cell
What is 23 pairs
Versions of a gene, for example blue or brown eyes are _________
What are Alleles
During which phase do homologous pairs line up at the center of the cell?
What is Metaphase I
If a centromere is position in the CENTER of p arm and q arm, what anatomy does it have?
A cell that has only one copy of its chromosomes (haploid) has what ploidy
What is 1n
In what phase(s) of meiosis can nondisjunction occur?
What is Anaphase I or Anaphase II
True or False: Replication occurs before Meiosis II
What is False
A patient that has 3 copies of chromosome 21 has what condition?
What is Down syndrome