Basic Meiosis Terms
Name the process by which a single cell divides to form four genetically distinct daughter cells.
Meiosis
This is the phase of meiosis where chromosomes (DNA) duplicate and form sister chromatids.
Interphase
The process in which chromosomes exchange segments during meiosis, increasing genetic variation.
Crossing over
This is the type of cell division that results in two identical daughter cells.
Mitosis
The stage following meiosis where the division of the cytoplasm occurs and cells separate.
Cytokinesis
Name the two divisions that occur during meiosis.
Meiosis I and meiosis II
Phase where homologous chromosomes separate
(Be specific about phase I or II)
Anaphase I
What is formed after fertilisation?
Zygote
This is the type of cell division that results in 4 daughter cells.
Meiosis
The stage during meiosis where the cell's chromosomes reduce from diploid to haploid.
Meiosis I
Name the type of cells produced by meiosis.
Gametes (egg and sperm)
Phase where two daughter cells form
Telophase I
The result of the random fusion of gametes from two parents.
Fertilization
This phase occurs only in meiosis, where homologous chromosomes pair up.
What is prophase I?
Sister chromatids are held together by this structure.
Centromere
The term for the number of chromosomes in a gamete (egg and sperm)
Haploid number
The phase where sister chromatids move apart to opposite sides of the cell.
Anaphase II
Why is genetic variation important?
Creates unique individuals, which increases likelihood of a species surviving and reproducing
Mitosis and meiosis produce different types of cells. Meiosis produces haploid cells. What type of cell does mitosis produce? [1]
Diploid cell
The process by which gametes are made is called ___________ reproduction.
Sexual
Matching chromosome pair
Homologous chromosomes
During this phase of meiosis, chromosomes align at the equatorial plate for the second time.
Metaphase II
Matching chromosomes are called ____________ _______ .
Homologous pairs
What is the difference between meiosis and mitosis in terms of genetic variation?
Meiosis - genetic variation present
Mitosis - genetically identical
Eggs are gametes made in the ______.
Ovaries