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19 questions
Does PMAT happen twice during Meiosis?
Yes
No
What happens during prophase one?
Crossing over
nucleus dissolves
spindle fibers form
Chromatin condenses to chromosomes
All of the above
What happens during Metaphase I?
Spindle fibers push DNA to the middle
Spindle fibers pull DNA apart
Independent assortment
crossing over
What happens during anaphase I?
Spindle fibers push DNA to the middle
nucleus reforms
Spindle fibers pull DNA apart
crossing over
What happens during telophase I?
nucleus reforms
spindle fibers go away
ends with two diploid cells
all of the above
What happens during prophase II?
Nucleus dissolves
spindle fibers form
chromatin condenses to chromosomes
Same as prophase I
All of the above
What happens during metaphase II?
ends with four cells
Spindle fibers push DNA to the middle
crossing over
Independent assortment
What happens during anaphase II?
crossing over
DNA replication
nucleus reforms
Spindle fibers pull DNA apart
What happens during telophase II?
nucleus reforms
spindle fibers go away
end with four haploid cells
all of the above
How many cells are left at the end of telophase II?
1
2
3
4
How many cells are left at the end of telophase I?
1
2
3
4
Is independent assortment random?
Yes
No
When does crossing over happen?
Anaphase II
Prophase I
Prophase II
Anaphase I
What does crossing over result in?
genetic diversity and recombinant chromatids
three chromosomes
a tetrad
spindle fibers and genetic diversity
What is nondisjunction?
Failure to separate at anaphase I and II
failure to separate at prophase I and II
Failure to come together at anaphase I and II
Failure to come together at prophase I and II
What is aneuploidy?
more than normal chromosomes
abnormal number of chromosomes
no chromosomes
to many chromosomes
What is polyploidy?
no chromosomes
the correct amount of chromosomes
not enough chromosomes
more than the normal number of chromosomes
What is translocation?
when DNA disappears
when a piece of DNA breaks off and attaches somewhere else
when there is to much DNA
when there is not enough DNA
What can translocation effect?
independent assortment
gene expression
crossing over
DNA replication
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