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WorksheetsLesson 28: Meiosis
Total questions: 10
Worksheet time: 6mins
Crossing over is -
a cell division that produces four haploid cells
a cell division that produces two diploid cells
a process by which homologous chromosomes exchange segments of DNA
a process that produces two daughter cells
Gametes, or sex cells, are formed by (a) , while other eukaryotic cells are formed by mitosis.
Select all statements below that correctly compare mitosis and meiosis.
Mitosis produces sex cells, and meiosis produces all other cells
Mitosis has one division, and meiosis has two divisions
Mitosis produces diploid cells, and meiosis produces haploid cells
Mitosis produces two daughter cells, and meiosis produces four daughter cells
A paired set of homologous chromosomes formed during prophase one of meiosis is a -
chromatid
tetrad
zygote
chromosome
What is significant about the process of crossing over, which is when homologous chromosomes exchange DNA segments?
It provides genetic variation among organisms
It contributes to gene flow among populations
It creates a complete set of chromosomes
It eliminates genetic disorders in most organisms
If the haploid cell of an organism contains 10 chromosomes, then the diploid cells of an organism will each contain how many chromosomes?
10
15
5
20
The chromosomes look different after DNA replication because they are made up of two sister (a) .
When meiosis is complete, how many haploid cells have been produced from the original diploid cell?
3
4
1
2
During what phase of meiosis does crossing over occur?
Prophase I
Metaphase I
Prophase II
Metaphase II
A fertilized egg is called a -
chromosome
zygote
sister chromatid
gamete
