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ure 26.8At what stage does … [FREE SOLUTION]
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At what stage does the diploid zygote form?
a. when the female cone begins to bud from the tree
b. at fertilization
c. when the seeds drop from the tree
d. when the pollen tube begins to grow
The correct option is b. at fertilization
See the step by step solution
Step by Step Solution
Fertilization is the fusion of sperm nucleus and female nucleus takes place to form a diploid zygote.
The diploid zygote forms after the pollen tube has finished forming so that the male generative nucleus (sperm) can fuse with the female egg.
Upon fertilization, a diploid zygote forms.
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Gymnosperms – OpenEd CUNY
Sexual life cycles (article) | Meiosis – Khan Academy
Gymnosperms | Biology for Majors II – Lumen Learning
Zygote | Definition, Development, Example, & Facts | Britannica
Frequently Asked Questions About at what stage does the diploid zygote form?
If you have questions that need to be answered about the topic at what stage does the diploid zygote form?, then this section may help you solve it.
What stage of plant development does the diploid zygote form at?
The male generative nuclei can fuse with the female gametophyte when the diploid zygote forms after the pollen tube has finished developing.
A diploid zygote is created in what way?
This fertilized egg then has genetic material from both gametes, making it a diploid zygote. During fertilization, the sperm penetrates and releases its nucleic material into the egg.
A diploid zygote is what?
The joining of haploid gametes to produce a diploid zygote is a common feature in the sexual reproduction of all organisms, with the exception of bacteria, because the zygote is endowed with genes from two parents and is therefore diploid (carrying two sets of chromosomes).
What happens following the formation of a diploid zygote?
A diploid zygote is created when the haploid gametes fertilize, and this zygote then goes through numerous rounds of mitosis to develop into a diploid multicellular plant known as a sporophyte, from which specialized cells go through meiosis to create haploid spores.
At this point, where is the zygote?
Within 3 to 5 days of fertilization, the zygote enters the uterus, where it divides further to form a hollow ball of cells known as a blastocyst, which implants in the uterine wall about 6 days later.
At what stage do diploid cells develop?
The gametophyte is a haploid (n) multicellular life stage that produces gametes (egg and sperm cells), which fuse during fertilization to form a diploid (2n) zygote, which then develops into a mature diploid sporophyte by mitosis and carries both genetic information from the fused gametes.
What phases of zygote development are there?
The zygote first develops into a solid ball of cells called a zygote, which then transforms into a hollow ball of cells called a blastocyst. The blastocyst then implants in the uterine wall where it develops into an embryo connected to a placenta and encircled by fluid-filled membranes.
What stage is a zygote?
While the zygote stage is very brief, lasting only the early days of conception, it is crucial because the single-celled zygote contains all of the genetic information required to form a fetus. A zygote forms when a sperm penetrates the outer surface of an egg. This occurs in the fallopian tube.
At what stage is a zygote represented?
Stages of human development include the following: Blastocyst stage: The single-celled zygote starts to divide into a solid ball of cells. Zygotic stage: The zygote is created when the male gamete (sperm) and female gamete (egg) fuse.
What three stages of fertilization are there?
Sperm capacitation takes place in the female genital tract and prepares sperm cells for the acrosome reaction. Sperm-egg binding and fusion, cortical reaction, and oocyte activation are the other two main stages in fertilization.
What stages of development exist between the zygote and birth?
The three main stages of prenatal development are the germinal stage, which lasts for the first two weeks following conception, the embryonic stage, which lasts for the third through eighth weeks, and the fetal stage, which lasts from the ninth week until delivery.
Which four stages of fertilization are there?
Four processes can be used to categorize the stages of fertilization: sperm preparation, sperm-egg recognition and binding, sperm-egg fusion, fusion of the sperm and egg pronuclei, and activation of the zygote.
What are the zygote’s three stages?
The two-week period following conception is referred to as the germinal stage. Conception occurs when a sperm cell combines with an egg cell to form a zygote. This period is typically divided into three stages: the embryonic stage, the fetal stage, and the developmental stage.
What steps are involved in creating a zygote?
When sperm meets an egg in one of the fallopian tubes, conception results, and the resulting zygote, which is a fertilized egg, contains all the genetic material (DNA) necessary to develop into a tiny human being.