Biology
In each chromosome there are TWO Sex Chromosomes out of the total 46 chromosomes. Sex chromosomes are an X or Y chromosome that determines the sex of an organism.
- Chromosomal Aberration
Chromosomal aberration refers to a change in number of chromosomes, can occur on one, or several, or all of the chromosomes within a nucleus. This is cause by the failure of sister chromatids to separate during anaphase of mitosis or the failure of homologous...
- The Y Chromosome Has Several Male-specific Genes
KEY CONCEPTS:The Y chromosome has ~60 genes that are expressed specifically in testis. The male-specific genes are present in multiple copies in repeated chromosomal segments. Gene conversion between multiple copies allows the active genes to be maintained...
- What Is The Cause Of Turner's Syndrome?
A) Presence of additional copy of X-chromosome. B) Absence of one of the X-chromosomes C) Trisomy of chromosome number 21.D) None of these The correct answer is: B) Absence of one of the X-chromosomes...
- Diploid Chromosome Number
Humans have a diploid chromosome number of 46 chromosomes. In other words, there are a total of 46 chromosomes in human cells. The diploid number varies depending on each species. Having a diploid chromosome number means that an organism?s cells contain...
- Chromosomes
What are chromosomes and how do they differ in Prokaryotic and Eukaryotic chromosomes?...
Biology
Autosomes & Sex Chromosomes
All About Autosomes and Sex Chromosomes:
Let me start off by explaining that Autosomes and Sex Chromosomes are from the same chromosome, which contains 46 chromosomes total.
In each chromosome there are TWO Sex Chromosomes out of the total 46 chromosomes. Sex chromosomes are an X or Y chromosome that determines the sex of an organism. Autosomes complete the rest of the 44 of 46 remaining chromosomes. They are chromosomes that do not determine the sex of an organism.
*This picture shows the 44 Autosomes and the 2 Sex Chromosomes making one complete chromosome.
- Chromosomal Aberration
Chromosomal aberration refers to a change in number of chromosomes, can occur on one, or several, or all of the chromosomes within a nucleus. This is cause by the failure of sister chromatids to separate during anaphase of mitosis or the failure of homologous...
- The Y Chromosome Has Several Male-specific Genes
KEY CONCEPTS:The Y chromosome has ~60 genes that are expressed specifically in testis. The male-specific genes are present in multiple copies in repeated chromosomal segments. Gene conversion between multiple copies allows the active genes to be maintained...
- What Is The Cause Of Turner's Syndrome?
A) Presence of additional copy of X-chromosome. B) Absence of one of the X-chromosomes C) Trisomy of chromosome number 21.D) None of these The correct answer is: B) Absence of one of the X-chromosomes...
- Diploid Chromosome Number
Humans have a diploid chromosome number of 46 chromosomes. In other words, there are a total of 46 chromosomes in human cells. The diploid number varies depending on each species. Having a diploid chromosome number means that an organism?s cells contain...
- Chromosomes
What are chromosomes and how do they differ in Prokaryotic and Eukaryotic chromosomes?...