During which meiosis phase(s) does the nuclear membrane breakdown?
Prophase 1 and 2
Which stage of meiosis is shown in the diagram?
anaphase 2
A cell containing two complete sets of chromosomes, can also be signified by the symbol 2n, is called _____ .
diploid
Which stage of meiosis is shown in the diagram?
metaphase 2
Which sex chromosomes do skin cells of a male human contain?
XY
Name two haploid human cells?
Egg and sperm
True or False: Meiosis starts with a diploid cell.
True
Which stage of meiosis is shown in the diagram?
telophase 1
In which stage of meiosis are sister chromatids separated?
Anaphase 2
True or false: 4 genetically identical cells are produced at the end of meiosis 2.
false
In which stage of meiosis do homologous chromosomes pair to form bivalents?
Prophase 1
What is the name for the exchange of alleles between non-sister chromatids of homologous chromosomes during meiosis I?
crossing over
What is the name for the nuclear division that results in a reduction in chromosome number (the first division of meiosis)
Reduction division
Diagram shows a cell from testis of a locust doing meiotic division. The cell is in which stage of meioisis?
Prophase I
In which stage of meiosis are homologous chromosomes separated?
anaphase 1
What pulls chromosomes apart during anaphase of cell divisions?
Spindle fibers, microtubules
Which of the following is/are correct for both mitosis and meiosis? I- chromosome number is maintained II- Homologous chromosomes paired up III- Sister chromatids separate IV- Occurs in prokaryotes
III only
Which structure holds sister chromatids together?
Centromere
During which phase of meiosis does crossing over happen?
Prophase 1
Pairs of homologous chromosomes line-up independently of each other during which phase of meiosis?
Metaphase 1
Mitotic division of a cell with 8 chromosomes produces 2 identical daughter cells with 4 chromosomes. True of false?
False
What is the position at which non-sister chromatids of homologous chromosomes cross over each other called?
Chiasma/chiasmata
Which stage of meiosis is shown in the diagram?
Metaphase 1
How many pair of sex chromosomes do human skin cells have?
1
The diploid (2n) chromosome number of a mammal is 12. How many chromosomes do its eggs contain?
6
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