Scelta multipla
In meiosis, what is a tetrad?
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9. Mitosis and Meiosis
Meiosis
Scelta multipla
In sexually reproducing organisms, what is the primary function of meiosis?
A
To produce haploid gametes by reducing the chromosome number by half
B
To join two haploid gametes to form a diploid zygote
C
To produce genetically identical diploid daughter cells for growth and tissue repair
D
To replicate DNA without cell division, creating extra copies of each chromosome
Guida verificata passo dopo passo1
Understand that meiosis is a specialized type of cell division occurring in sexually reproducing organisms.
Recall that the main goal of meiosis is to reduce the chromosome number by half, transforming diploid cells (2n) into haploid cells (n).
Recognize that these haploid cells are gametes (sperm and egg), which are necessary for sexual reproduction.
Note that when two haploid gametes fuse during fertilization, they restore the diploid chromosome number in the zygote.
Distinguish meiosis from mitosis, which produces genetically identical diploid daughter cells for growth and repair, not haploid gametes.
