Do You Know Cytogenetics?

1.

This is an Karyotype from a:

Male

Woman

The given karyotype is from a male because males typically have XY sex chromosomes, whereas females have XX sex chromosomes. The karyotype shows a pair of XY chromosomes, indicating that the individual is male.

Explanation

The given karyotype is from a male because males typically have XY sex chromosomes, whereas females have XX sex chromosomes. The karyotype shows a pair of XY chromosomes, indicating that the individual is male.

2. This is:

A chromosome

A Karyotype

F.I.S.H

A karyotype is a visual representation of an individual's chromosomes, arranged in pairs and organized by size and shape. It allows for the identification of any abnormalities or genetic disorders, as well as the determination of an individual's sex. This answer is correct because it accurately identifies the given image as a karyotype, which is a common diagnostic tool used in genetics and cytogenetics.

Explanation

A karyotype is a visual representation of an individual's chromosomes, arranged in pairs and organized by size and shape. It allows for the identification of any abnormalities or genetic disorders, as well as the determination of an individual's sex. This answer is correct because it accurately identifies the given image as a karyotype, which is a common diagnostic tool used in genetics and cytogenetics.

3.

This is an example of:

The structure of a cell

The mapping system

A Karyotype

An abnormal chromosome

The correct answer is "The mapping system." This is because the question is asking for an example, and the other options (the structure of a cell, a karyotype, and an abnormal chromosome) are not examples of anything. The mapping system, on the other hand, is a specific example that can be used to explain or illustrate a concept or process.

Explanation

The correct answer is "The mapping system." This is because the question is asking for an example, and the other options (the structure of a cell, a karyotype, and an abnormal chromosome) are not examples of anything. The mapping system, on the other hand, is a specific example that can be used to explain or illustrate a concept or process.

4. Down syndrome comes from:

A deletion in the 21st chromsome

A copy of the 21st chromosome

The 21st chromosome attaching to the 23rd chromosome

The deletion of the 20th chromosme

None of the Above.

Down syndrome is caused by the presence of an extra copy of the 21st chromosome. This additional genetic material disrupts the normal development and causes the characteristic physical and cognitive features of Down syndrome.

Explanation

Down syndrome is caused by the presence of an extra copy of the 21st chromosome. This additional genetic material disrupts the normal development and causes the characteristic physical and cognitive features of Down syndrome.

5. The most important technology used in cytogenetics is:

Microscopes

Centrifuges

F.I.S.H.

Karyotypes

Test Tubes

F.I.S.H. stands for fluorescence in situ hybridization, which is a technique used in cytogenetics to detect and locate specific DNA sequences on chromosomes. It involves the use of fluorescent probes that bind to specific DNA sequences, allowing researchers to visualize and analyze the chromosomes under a microscope. F.I.S.H. is a crucial technology in cytogenetics as it helps in the diagnosis of genetic disorders, identification of chromosomal abnormalities, and understanding the organization and behavior of chromosomes.

Explanation

F.I.S.H. stands for fluorescence in situ hybridization, which is a technique used in cytogenetics to detect and locate specific DNA sequences on chromosomes. It involves the use of fluorescent probes that bind to specific DNA sequences, allowing researchers to visualize and analyze the chromosomes under a microscope. F.I.S.H. is a crucial technology in cytogenetics as it helps in the diagnosis of genetic disorders, identification of chromosomal abnormalities, and understanding the organization and behavior of chromosomes.

6. Cytogenetics has been around since:

The 18th Century

The 19th Century

The 20th Century

The 21 Century

None of the above

Cytogenetics is the study of chromosomes and their abnormalities, which involves analyzing the structure, function, and behavior of these genetic materials. The field of cytogenetics began to develop in the early 20th century with the discovery of chromosomes and their role in heredity. Scientists such as Thomas Hunt Morgan and Theophilus Painter made significant contributions to cytogenetics during this time. Therefore, the correct answer is "The 20th Century."

Explanation

Cytogenetics is the study of chromosomes and their abnormalities, which involves analyzing the structure, function, and behavior of these genetic materials. The field of cytogenetics began to develop in the early 20th century with the discovery of chromosomes and their role in heredity. Scientists such as Thomas Hunt Morgan and Theophilus Painter made significant contributions to cytogenetics during this time. Therefore, the correct answer is "The 20th Century."