Misc
Misc 2
Meiosis - General
Meiosis I, Meiosis II or neither
Stages of Meiosis
100
male gametes are called ________________.
sperm
100
What process occurs when 2 gametes combine to form the first cell of a new organism?
Fertilization
100
How many chromatids are in a tetrad?
4
100
produces 4 haploid cells
Meiosis II
100
Crossing over between homologous chromosomes occurs.
prophase I
200
female gametes are called ________________.
eggs
200
What process is used when dividing a cell into 2 identical, diploid cells?
mitosis
200
Cells that have only 1 copy of each chromosome are called ______________.
haploid
200
homologous chromosomes separate
Meiosis I
200
Sister chromatids separate
Anaphase II
300
What is the symbol for a diploid cell?
2N
300
Suppose that an organism has the haploid number N = 74. How many chromosomes does this organism’s somatic cells contain?
148
300
A pair of chromosomes, each one coming from a different parent.
Homologous
300
Produces 2 diploid cells
neither
300
Individual chromosomes line up in the middle of the cell
metaphase II
400
Suppose that an organism has the diploid number 2N = 446 . How many chromosomes does this organism’s gametes contain?
223
400
What process is used when dividing a cell into 4 genetically different haploid cells?
meiosis
400
The purpose of crossing over is ________________.
Genetic diversity
400
Cells undergo a round of DNA replication.
Neither
400
Spindle fibers pull apart homologous chromosomes.
anaphase I
500
Homologous chromosomes pair up to form _________.
tetrads
500
Different forms of the same gene.
alleles
500
Unlike mitosis, meiosis in mammals results in the formation of ____________? (BE SPECIFIC!!)
4 haploid gametes
500
Is called a "reduction division" because the number of chromosomes is cut in half.
Meiosis I
500
nuclear membranes start to form around 2 clusters of chromosomes as they begin to unwind.
telophase I
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