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monoploid, monoploid and diploid
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Does a zygote ha ve a diploid chromosome number?
yes zygote do have diploid chromosome number
Out of the following choices which gamete(s) will result in a zygote that will exhibit monosomy For this problem assume that the other gamete contains the normal haploid amount of chromosomes.?
To exhibit monosomy in a zygote, one gamete must contribute only one copy of a chromosome instead of the normal two. Therefore, if one gamete has a missing chromosome (e.g., due to a nondisjunction event leading to a gamete with 22 chromosomes instead of 23), it will result in a zygote that has only one copy of that chromosome when fused with a normal haploid gamete. In summary, the gamete with the missing chromosome (monosomic) is responsible for the resulting zygote exhibiting monosomy.
What is it called when a zygote only has one copy of a particular chromosome?
When a zygote has only one copy of a particular chromosome, it is referred to as "haploid." This condition typically occurs in gametes (sperm and egg cells) before fertilization. However, if a zygote is haploid, it generally indicates an abnormality, as normal zygotes are diploid, containing two copies of each chromosome—one from each parent.
Can a zygote survive without the x sex chromosome?
No because all organisms or zygotes (male or female) has sex chromosomes X in male it is XX while in female it is XY
When is the the sex of a zygote determined?
In humans, the presence of a Y chromosome means the zygote will be male. So (normal) females will have XX - one X chromosome from each parent. (Normal) males will have XY - an X chromosome from their mother and a Y from their father.
What happens to the zygote that is monosomic?
A monosomic zygote has one less chromosome than normal. This can result in genetic disorders or developmental abnormalities. Most monosomic zygotes are not viable and typically result in miscarriage.
How do chromosomes determine an individual's sex?
The female- or male- ness of the fertilized Ovum [Zygote] depends upon the X, or Y, 'component' of Chromosome Number 23 [the sex-chromosome] that is donated from the Male. All of the Female Chromosome Numbers 23 ARE XX.
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.
How could a zygote could end up with a extra chromosome?
how could a zygote end up with an extra chromosome Either the egg or the sperm doesn't divide equally.
True or False nondisjunction always result in a zygote with an extra chromosome?
False. In cases of individuals with turner syndrome, Females have only 1 X chromosome to determine sex, where "normally" a female has XX or a male has XY. Now understand that a zygote is a fertilized egg. If you meant gametes, which are egg or sperm cells, True, non-disjunction causes an excess amount of chromosomes in at least one of the four gametes that meiosis produces. I hope that helps.
What is trisomy-21 klinefelter syndrome and turner syndrome?
All 3 conditions occur when non disjunction occurs in meiosis of the parent when they are producing gametes (egg or sperm). In normal meiosis, each parent gamete has 1 copy of each of the 22 somatic chromosomes and 1 sex chromosome. Non-disjunction occurs when 2 chromosomes go to one gamete and 0 go to the other. Trisomy 21 (Down Syndrome) is when the zygote has 3 copies (instead of 2) of chromosome 21. Klinefelter Syndrome (47 XXY) is when the zygote has 2 X chromosomes and one Y (a normal male is XY and a normal female is XX). Since they do have the Y chromosome, they are phenotypically (physically) male. Turner syndrome (45 X) is when the zygote has only 1 sex chromosome (X chromosome). They are phenotypically male.
During fertilization if a sperm cell containing an x chromosome combines with an egg the resulting zygote will re result in a male?
If a sperm cell containing an X chromosome combines with an egg, the resulting zygote will have two X chromosomes, typically resulting in a female. Sperm cells with a Y chromosome combine with an egg to create a zygote with one X and one Y chromosome, typically resulting in a male.
