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Human female G-bands

Human female G-bands

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Identify the chromosomes in the spread based on their size and banding pattern. Arrange them as shown in the organized picture.

 

I have this image that I have no idea how to start! I get what I'm looking at but I'm having trouble determine if my order is right! Please help me. I've attached the spread of the chromosomes and an example of how they should look.

**Human Female Chromosomes - G-Banding** The image displays a karyotype of human female chromosomes using G-banding, a technique used to stain chromosomes to observe their specific patterns. Each dark band represents regions of DNA that are rich in adenine-thymine (A-T) base pairs, allowing researchers to identify individual chromosomes and diagnose genetic abnormalities. **Description of the Chromosomal Pattern:** 1. **Black and White Bands:** The chromosomes have distinct patterns of dark and light bands. The dark regions are gene-poor areas, whereas the lighter regions are gene-rich areas. 2. **Arrangement and Number:** There are 23 pairs of chromosomes, typical for a human. The presence of two X chromosomes confirms the female genetic makeup. 3. **Chromosome Detail:** Each chromosome pair can be distinguished by the unique pattern of bands, which is important for chromosomal identification and analysis. **Educational Significance:** G-banding is crucial in genetics for: - Identifying chromosomal abnormalities such as deletions, duplications, or translocations. - Prenatal screening for genetic conditions. - Research in evolutionary biology and species comparison. Understanding the banding pattern enhances knowledge of genetic diseases and aids in genetic counseling and research.
Transcribed Image Text:**Human Female Chromosomes - G-Banding** The image displays a karyotype of human female chromosomes using G-banding, a technique used to stain chromosomes to observe their specific patterns. Each dark band represents regions of DNA that are rich in adenine-thymine (A-T) base pairs, allowing researchers to identify individual chromosomes and diagnose genetic abnormalities. **Description of the Chromosomal Pattern:** 1. **Black and White Bands:** The chromosomes have distinct patterns of dark and light bands. The dark regions are gene-poor areas, whereas the lighter regions are gene-rich areas. 2. **Arrangement and Number:** There are 23 pairs of chromosomes, typical for a human. The presence of two X chromosomes confirms the female genetic makeup. 3. **Chromosome Detail:** Each chromosome pair can be distinguished by the unique pattern of bands, which is important for chromosomal identification and analysis. **Educational Significance:** G-banding is crucial in genetics for: - Identifying chromosomal abnormalities such as deletions, duplications, or translocations. - Prenatal screening for genetic conditions. - Research in evolutionary biology and species comparison. Understanding the banding pattern enhances knowledge of genetic diseases and aids in genetic counseling and research.
**Human Female G-Bands Karyotype** This image displays a karyotype of a human female, specifically focusing on G-bands. The karyotype consists of 23 pairs of chromosomes, organized from largest to smallest. Here's a detailed breakdown: 1. **Chromosome Pairs 1 to 22**: Each pair represents homologous chromosomes, numbered from 1 to 22 (autosomes). The G-banding technique makes the chromosomes appear striped, highlighting areas of the DNA that are rich in adenine-thymine (A-T) base pairs. These striped patterns help in identifying structural changes or abnormalities within the chromosomes. 2. **Sex Chromosomes (X and Y)**: In this karyotype, there are two X chromosomes, indicating a female. Each X chromosome appears similar in size and banding pattern. The absence of a Y chromosome is typical for females. **Note:** G-banding is a common technique used to study chromosomal structures and helps in diagnosing genetic disorders.
Transcribed Image Text:**Human Female G-Bands Karyotype** This image displays a karyotype of a human female, specifically focusing on G-bands. The karyotype consists of 23 pairs of chromosomes, organized from largest to smallest. Here's a detailed breakdown: 1. **Chromosome Pairs 1 to 22**: Each pair represents homologous chromosomes, numbered from 1 to 22 (autosomes). The G-banding technique makes the chromosomes appear striped, highlighting areas of the DNA that are rich in adenine-thymine (A-T) base pairs. These striped patterns help in identifying structural changes or abnormalities within the chromosomes. 2. **Sex Chromosomes (X and Y)**: In this karyotype, there are two X chromosomes, indicating a female. Each X chromosome appears similar in size and banding pattern. The absence of a Y chromosome is typical for females. **Note:** G-banding is a common technique used to study chromosomal structures and helps in diagnosing genetic disorders.
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