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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.
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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.
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 a loss of complete chromosome called?
A loss of a complete chromosome is called monosomy. This occurs when a cell only has one copy of a particular chromosome instead of the usual two copies.
What is an original chromosome and its copy called?
An original chromosome is called a homologous chromosome, and its copy is called a sister chromatid. Homologous chromosomes have the same genes in the same order but may have different alleles, while sister chromatids are identical copies produced during DNA replication.
When a chromosome appears by itself within a karyotype and not as a pair it is known as?
monosomy. This term refers to the condition where an individual is missing one copy of a particular chromosome and only has one copy instead of the normal two.
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.
What is a cell that has a full copy of DNA?
Either pollen fertilization, zygote, gamete, diploid, haploid, or a chromosome
Humans who have lost one copy of an autosome are called?
Humans who have lost one copy of an autosome are called heterozygous for that specific chromosome. This condition is known as monosomy for that particular autosome.
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 do you call it if a person is missing a chromosome?
If a person is missing a chromosome, it is known as monosomy. Monosomy occurs when there is only one copy of a particular chromosome instead of the usual two copies. For example, a person missing one copy of chromosome 21 would have a condition called monosomy 21 or trisomy 21, which is also known as Down syndrome.
What is a loss of complete chromosome called?
A loss of a complete chromosome is called monosomy. This occurs when a cell only has one copy of a particular chromosome instead of the usual two copies.
What is an original chromosome and its copy called?
An original chromosome is called a homologous chromosome, and its copy is called a sister chromatid. Homologous chromosomes have the same genes in the same order but may have different alleles, while sister chromatids are identical copies produced during DNA replication.
When a chromosome appears by itself within a karyotype and not as a pair it is known as?
monosomy. This term refers to the condition where an individual is missing one copy of a particular chromosome and only has one copy instead of the normal two.
What does a replicate chromosome consist of?
A replicated chromosome consists of an exact copy (assuming no mutations) of the original chromosome, which is composed of DNA and proteins called histones.
How does trisomy occur?
Trisomy occurs when an individual has three copies of a particular chromosome instead of the usual two. This can happen during the formation of sperm or egg cells, leading to an extra copy of the chromosome in the resulting embryo. Trisomy can result in conditions like Down syndrome, where there is an extra copy of chromosome 21.
What is the term for an individual who has an extra copy of one chromosome or is missing a chromosome - Is it something-'ploid'?
Aneuploid - the individual has an extra copy of one chromosome or is missing a chromosome.
What does a chromosomes consists of?
A replicated chromosome consists of an exact copy (assuming no mutations) of the original chromosome, which is composed of DNA and proteins called histones.
