In this image of the human karyotype: A. The sister chromatids have separated B. There are 46 pairs of chromosomes C. The DNA has already been replicated D. There are 23 pairs of autosomes E. None are true. The image displays a karyotype, which is a graphical representation of the chromosomes in a cell. Karyotypes are used to study an organism’s chromosomal composition and to detect genetic anomalies.### Explanation of the Image:1. **Chromosome Appearance**: - The chromosomes are depicted as X-shaped or rod-like structures. - They vary in size, with some being larger and others smaller. - The typical X-shape indicates that these are likely in a duplicated state, with sister chromatids attached at a centromere.2. **Arrangement**: - The chromosomes are not arranged in pairs or in a specific order, suggesting this is a generalized chromosomal spread rather than an organized karyotype.3. **Use in Education**: - This image could be utilized to teach students about chromosomal structures, the process of cell division (mitosis/meiosis), and how genetic material is organized within the cell. - It can also serve as a basis for understanding genetic testing and karyotyping processes used in medical genetics to identify chromosomal abnormalities.In an educational context, students could be encouraged to identify chromosome structures, discuss their functions, and explore the significance of chromosomal studies in genetics.

The sequential events occurring in the life of a cell is called the cell cycle. There are four…

In this image of the human karyotype: A. The sister chromatids have separated B. There are 46 pairs of chromosomes C. The DNA has already been replicated D. There are 23 pairs of autosomes E. None are true.

In this image of the human karyotype: A. The sister chromatids have separated B. There are 46 pairs of chromosomes C. The DNA has already been replicated D. There are 23 pairs of autosomes E. None are true.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter20: Chromosomes And Human Genetics

Section: Chapter Questions

Problem 10SQ

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Concept explainers

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.

Question

In this image of the human karyotype:

A. The sister chromatids have separated

B. There are 46 pairs of chromosomes

C. The DNA has already been replicated

D. There are 23 pairs of autosomes

E. None are true.

The image displays a karyotype, which is a graphical representation of the chromosomes in a cell. Karyotypes are used to study an organism’s chromosomal composition and to detect genetic anomalies.

### Explanation of the Image:

1. **Chromosome Appearance**:
- The chromosomes are depicted as X-shaped or rod-like structures.
- They vary in size, with some being larger and others smaller.
- The typical X-shape indicates that these are likely in a duplicated state, with sister chromatids attached at a centromere.

2. **Arrangement**:
- The chromosomes are not arranged in pairs or in a specific order, suggesting this is a generalized chromosomal spread rather than an organized karyotype.

3. **Use in Education**:
- This image could be utilized to teach students about chromosomal structures, the process of cell division (mitosis/meiosis), and how genetic material is organized within the cell.
- It can also serve as a basis for understanding genetic testing and karyotyping processes used in medical genetics to identify chromosomal abnormalities.

In an educational context, students could be encouraged to identify chromosome structures, discuss their functions, and explore the significance of chromosomal studies in genetics.

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