Which stage represents a zygote?
Which stage represents a zygote?
Stage X
Stage X is a zygote and is formed as a result of the process of fertilization.
What is zygote how is it formed?
Zygote or the fertilized egg is the diploid cell that is formed from the fusion of a female gamete (egg) with a male gamete (sperm). The zygote undergoes cleavage to form the embryo.
What are the steps in alternation of generations?
Alternation of generations describes a plant’s life cycle as it alternates between a sexual phase, or generation and an asexual phase. The sexual generation in plants produces gametes, or sex cells and is called the gametophyte generation. The asexual phase produces spores and is called the sporophyte generation.
What is a zygote Class 7?
A zygote is an egg which is formed after fertilization of male gamete and female gamete.
Is a zygote a child?
This zygote is a newly existing, genetically unique, genetically male or female, individual human beingóit is not a “potential” or a “possible” human being. And this developing human being is a human being, a human embryo, a human child whether or not it is implanted artificially into the womb of the mother.
What is the first cell of a sporophyte generation called?
✤ The first cell in a sporophyte generation is the diploid zygote, while the first cell in the gametophyte stage is the haploid spore. ✤ In the sporophyte phase, haploid spores are formed and in the gametophyte phase, diploid male and female gametes are formed.
Why is it called alternation of generations?
The multicellular haploid plant structure is called the gametophyte, which is formed from the spore and give rise to the haploid gametes. The fluctuation between these diploid and haploid stages that occurs in plants is called the alternation of generations.
What is botany Antheridium?
An antheridium is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). The plural form is antheridia, and a structure containing one or more antheridia is called an androecium. Androecium is also the collective term for the stamens of flowering plants.
What is sporophyte generation?
In plants, the sporophyte generation is that phase in their life cycle that begins with the union of two single-celled haploid gametes. This union of haploid (n) gametes results in the formation of a single-celled diploid (2n) zygote. The zygote germinates and grows by going through a series of mitotic divisions.
How are zygotes formed 8?
Sperm and ovum fuse to form the fertilized egg called zygote. During this process the nucleus of the sperm fuses with the nucleus of the ovum thus forming a single nucleus. Thus zygote is formed with a single nucleus, this completes the process of fertilization.
