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What is the chance that a human zygote will receive one x and one y sex chromosomes during fertilization?
Wiki User
∙ 9y ago
The chance is 50%.
Christop Hodkiewicz
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What is diploidy?
Diploid state of organisms is originated during process of fertilization of sexual reproduction. During fertilization, two haploid cells or gametes of different types are fused together to produce a diploid egg (zygote).
What stage in meiosis do homologous chromosomes come together?
During meiosis, the homologous chromosomes come together during prophase I. Pairs of homologous chromosomes align during a process called synapsis and form a tetrad (four sister chromatids, two from each pair of homologous chromosomes). During synapsis, crossing over may occur, during which homologous chromosomes exchange genetic material.
After gametogenesis takes place which process restores the diploid chromosome number of the species for the next generation?
In the S phase before mitosis, the chromosomes duplicate into sister chromatids before spearating during mitosis. The number of chromosomes remainds diploid because they double before they are halved.
What determines how chromosomes are combined in gametes?
It depends on how homologues line up during metaphase 1 in meiosis, and event that is matter of chance.
What is the number of chromosomes in a somatic cell?
Somatic cells (of the body) are diploid (having 46 chromosomes). Only gametes (eggs and sperm) are haploid (having 23 chromosomes). So that during fertilization the egg and sperm combine their chromosomes resulting in a new life with 46 unique chromosomes (in humans, of course. Others species has differing numbers of chromosomes). The haploid combination ensures genetic diversity.
What is the chance a human zygote will receive one X and one Y chromosome during fertilization?
The chance is 50%.
What is the chance that human zygote will receive one X and one Y sex chromosome during fertilization?
The chance is 50%.
What is a chance that a human zygote will receive one x and one y sex chromosome during fertilization?
The chance is 50%.
What is the chance that a human zygot will receive one x and one y sex cromosome during fertilization?
The mother will always contribute an X chromosome. So, assuming the father's X and Y chromosomes are equally likely, the answer is 1/2.
When during the human cycle is the diploid number of chromosomes restored?
Fertilization
How does fertilization affect the chromosome number of a zygote?
Sperm contains 23 chromosomes. An egg contains 23 chromosomes. The zygote (a fertilized egg) contains 46 chromosomes. Yet, it is also important to consider that the egg completes meiosis before joining with the sperm, thereby shedding half of its 46 chromosomes into a polar body that adjoins the zona pelucida lining.
What sequence shows chromosomes number during fertilization?
hapliod is 23 and diploid is 46
What does a cells chromosomes contain?
Like all other cell types, chromosomes are found in nucleus only(head of the sperm). But the human sperm cell is haploid, so that its 23 chromosomes can join the 23 chromosomes of the female egg to form a diploid cell during fertilization.
How are the usual number of chromosomes restored during fertilization?
When the haploid sperm fertilizes the haploid egg, their chromosomes combine to form a new diploid nucleus in the first cell of the new offspring, which is called a zygote.
What is diploidy?
Diploid state of organisms is originated during process of fertilization of sexual reproduction. During fertilization, two haploid cells or gametes of different types are fused together to produce a diploid egg (zygote).
What might happen if human chromosomes did not separate?
well if human chromosomes number 21 does not separate during fertilization the baby will be with down syndrome. at fertilization of the egg with a normal sperm the zygote contain three chromosome number 21 (trizomic 21) hence the zygote contain 47 chromosome instead of 46.
What stage in meiosis do homologous chromosomes come together?
During meiosis, the homologous chromosomes come together during prophase I. Pairs of homologous chromosomes align during a process called synapsis and form a tetrad (four sister chromatids, two from each pair of homologous chromosomes). During synapsis, crossing over may occur, during which homologous chromosomes exchange genetic material.
