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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Concepts_in_Biology_(OpenStax)/07%3A_The_Cellular_Basis_of_Inheritance/7.03%3A_Errors_in_MeiosisThe number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allow for the assessment of many chromosomal abnormalities. Disorders in chromosome number,...The number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allow for the assessment of many chromosomal abnormalities. Disorders in chromosome number, or aneuploidies, are typically lethal to the embryo, although a few trisomic genotypes are viable. Because of X inactivation, aberrations in sex chromosomes typically have milder effects on an individual.
- https://bio.libretexts.org/Courses/Community_College_of_Vermont/Human_Biology_(Gabor_Gyurkovics)/16%3A_Inheritance_and_Biotechnology/16.06%3A_Genetic_DisordersGenetic disorders are diseases, syndromes, or other abnormal conditions that are caused by mutations in one or more genes or by chromosomal alterations. Genetic disorders are typically present at birt...Genetic disorders are diseases, syndromes, or other abnormal conditions that are caused by mutations in one or more genes or by chromosomal alterations. Genetic disorders are typically present at birth, but they should not be confused with congenital disorders, which are any disorders, regardless of cause, that are present at birth. Some congenital disorders are not caused by genetic mutations or chromosomal alterations and are caused by problems during embryonic or fetal development.
- https://bio.libretexts.org/Workbench/BIOL_190%3A_General_Biology_(OpenStax)/03%3A_Unit_III-_Genetics/3.03%3A_Modern_Understandings_of_Inheritance/3.3.03%3A_Chromosomal_Basis_of_Inherited_DisordersThe number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number...The number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number, or aneuploidies, are typically lethal to the embryo, although a few trisomic genotypes are viable. Because of X inactivation, aberrations in sex chromosomes typically have milder phenotypic effects. Aneuploidies also include instances in which segments of a chromosome are duplicated or deleted.
- https://bio.libretexts.org/Courses/Butte_College/BC%3A_BIOL_2_-_Introduction_to_Human_Biology_(Grewal)/Text/07%3A_Cell_Reproduction/7.7%3A_Mitosis_vs._Meiosis_and_disordersBoth mitosis and meiosis result in eukaryotic cells dividing. So what is the difference between mitosis and meiosis? The primary difference is the differing goals of each process. The goal of mitosis ...Both mitosis and meiosis result in eukaryotic cells dividing. So what is the difference between mitosis and meiosis? The primary difference is the differing goals of each process. The goal of mitosis is to produce two daughter cells that are genetically identical to the parent cell, meaning the new cells have exactly the same DNA as the parent cell. Mitosis happens when you want to grow, for example. You want all your new cells to have the same DNA as the previous cells.
- https://bio.libretexts.org/Courses/American_River_College/BIOL_400%3A_Principles_of_Biology_(Wolfe)/03%3A_Untitled_Chapter_3/12%3A_Modern_Understandings_of_Inheritance/12.02%3A_Chromosomal_Basis_of_Inherited_DisordersThe number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number...The number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number, or aneuploidies, are typically lethal to the embryo, although a few trisomic genotypes are viable. Because of X inactivation, aberrations in sex chromosomes typically have milder phenotypic effects. Aneuploidies also include instances in which segments of a chromosome are duplicated or deleted.
- https://bio.libretexts.org/Workbench/General_Biology_I_and_II/03%3A_Unit_III-_Genetics/3.03%3A_Modern_Understandings_of_Inheritance/3.3.03%3A_Chromosomal_Basis_of_Inherited_DisordersThe number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number...The number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number, or aneuploidies, are typically lethal to the embryo, although a few trisomic genotypes are viable. Because of X inactivation, aberrations in sex chromosomes typically have milder phenotypic effects. Aneuploidies also include instances in which segments of a chromosome are duplicated or deleted.
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Genetics/03%3A_Meiosis_-_Sexual_Reproduction/3.06%3A_Errors_in_MeiosisThis page covers inherited disorders caused by abnormal chromosome behavior during meiosis, categorized into numerical and structural abnormalities. Key syndromes like Down Syndrome, Turner Syndrome, ...This page covers inherited disorders caused by abnormal chromosome behavior during meiosis, categorized into numerical and structural abnormalities. Key syndromes like Down Syndrome, Turner Syndrome, and Klinefelter syndrome are discussed, alongside their implications on development and fertility. Cytogenetic techniques like karyotyping help identify these conditions, revealing issues such as aneuploidy and structural rearrangements (e.g., deletions and translocations).
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Genetics/10%3A__Changes_in_Chromosome_Number_and_Structure/10.03%3A__Chromosome_Abnormalities_in_HumansTo better understand the consequences let's consider those that affect people. As you will recall humans are 2n=46. The convention when describing a person's karyotype (chromosome composition) is to ...To better understand the consequences let's consider those that affect people. As you will recall humans are 2n=46. The convention when describing a person's karyotype (chromosome composition) is to list the total number of chromosomes, then the sex chromosomes, and then anything out of the ordinary. Most of us are 46,XX or 46,XY. What follows are some examples of chromosome number and chromosome structure abnormalities.
- https://bio.libretexts.org/Bookshelves/Genetics/Online_Open_Genetics_(Nickle_and_Barrette-Ng)/09%3A__Changes_in_Chromosome_Number_and_Structure/9.01%3A__Changes_in_Chromosome_NumberIf something goes wrong during cell division, an entire chromosome may be lost and the cell will lack all of these genes. The causes behind these chromosome abnormalites and the consequences they have...If something goes wrong during cell division, an entire chromosome may be lost and the cell will lack all of these genes. The causes behind these chromosome abnormalites and the consequences they have for the cell and the organism is the subject of this section.
- https://bio.libretexts.org/Courses/Minnesota_State_Community_and_Technical_College/Biology_of_Human_Concerns_(Daniels)/12%3A_Inheritance/12.06%3A_Genetic_DisordersGenetic disorders are diseases, syndromes, or other abnormal conditions that are caused by mutations in one or more genes or by chromosomal alterations. Genetic disorders are typically present at birt...Genetic disorders are diseases, syndromes, or other abnormal conditions that are caused by mutations in one or more genes or by chromosomal alterations. Genetic disorders are typically present at birth, but they should not be confused with congenital disorders, which are any disorders, regardless of cause, that are present at birth. Some congenital disorders are not caused by genetic mutations or chromosomal alterations and are caused by problems during embryonic or fetal development.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Map%3A_Raven_Biology_12th_Edition/24%3A_Genome_Evolution/24.03%3A_Evolution_within_GenomesThe number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number...The number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number, or aneuploidies, are typically lethal to the embryo, although a few trisomic genotypes are viable. Because of X inactivation, aberrations in sex chromosomes typically have milder phenotypic effects. Aneuploidies also include instances in which segments of a chromosome are duplicated or deleted.
