Multiple Choice
In the life cycle of sexual reproducers, which type of asexual reproduction involves the offspring growing out of the parent organism?
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12. Meiosis
Life Cycle of Sexual Reproducers
Multiple Choice
How is a zygote formed in the life cycle of sexual reproducers?
A
By the division of a diploid cell
B
By the fusion of two diploid cells
C
By the replication of a single haploid cell
D
By the fusion of two haploid gametes
Verified step by step guidance1
Understand the concept of a zygote: A zygote is the initial cell formed when two gametes (sperm and egg) unite during fertilization in sexual reproduction.
Recognize the ploidy level of gametes: Gametes are haploid cells, meaning they contain one set of chromosomes. In humans, this is 23 chromosomes.
Identify the process of fertilization: Fertilization is the fusion of two haploid gametes, one from each parent, resulting in a diploid zygote.
Explain the formation of a diploid zygote: When the haploid sperm and haploid egg fuse, their chromosomes combine to form a diploid cell, the zygote, which has two sets of chromosomes (46 in humans).
Clarify why other options are incorrect: A zygote is not formed by the division of a diploid cell or by the replication of a single haploid cell, as these processes do not involve the fusion of two haploid gametes.
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