Mitosis
What is the first step of mitosis
prophase
What is the goal of meiosis?
create four genetically unique cells (gametes)
What is the side by side orientation of each homologous pair of chromosomes that is a matter of chance?
independent assortment
What stage is considered the "resting phase"
G0
What connects to chromosomes together?
Centromere
What is the phase called that includes mitosis and cytokinesis?
m phase
What is special about Prophase I?
crossing over
What is the most common cause of genetic variation?
Sexual reproduction
What phase is DNA reduplicated in?
S phase
Who determined that offspring carry the same genotypes as their parents?
Howard Mendell
What gets separated in anaphase?
sister chromatids
What gets pulled apart in Anaphase I?
Homologous chromosomes (have to say homologous for it to be correct!)
What is the change in the structure and or number of chromosomes in a cell?
Chromosomal aberrations
What stage is the final stage of interphase? AND what is the purpose of this stage?
G2
further prepare for division by ensuring proper growth and nutrients are present in the cell as well as check for mutations in the DNA
Brown eyes- B
Blue eyes- b
parent 1: Bb parent 2: BB
What are the chances of the offspring having blue eyes?
0%
What is the goal of mitosis
two genetically IDENTICAL daughter cells
How many chromosomes are in the final product gametes of meiosis? AND what are these specific cells called?
23 & haploid (must get both for full credit)
what is crossing over?
the exchange of genetic information in prophase I?
True or False: The cell spends most of its time in mitosis.
False - interphase!
_____ is when characteristics of both parents blend together to create their offspring.
blending
What type of reproduction is mitosis?
asexual
How do the sister chromatids line up on the metaphase plate in metaphase II?
single file line
Can anyone tell me what lines up on the metaphase plate in metaphase I and what order they line up in?
True
What is chromatin?
loosely packed DNA
What would the genotypes of a heterozygous individual be?
Bb