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Last updated date: 24th Nov 2023
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MVSAT Dec 2023

Karyology is the study of
A. Cytoplasm
B. Cell
C. Mitochondria
D. Nucleus

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Hint: The karyotype is the number and presence of chromosomes in the nucleus of the eukaryotic cell. The concept is often used for the full collection of chromosomes in a genus or an individual organism.

Complete Answer:
- A karyotype is literally an image of a person's chromosomes. In order to take this image, the chromosomes are isolated, stained and studied under a microscope. Most of the time, this is achieved using genes in white blood cells.
- An image of the chromosomes is taken by a microscope. Then the image of the chromosomes is cut and rearranged by the size of the chromosomes. The chromosomes are lined from the largest to the smallest.
- A qualified cytogeneticist may be searching for missing or extra pieces of chromosomes.There are 22 numbered pairs of chromosomes known as autosomes. The 23rd pair of chromosomes is sex chromosomes.
- They decide the sex of a person. The females have two X chromosomes, while the males have an X chromosome and a Y chromosome.
- A number has been assigned to each chromosome based on its size. Chromosome 1 is the largest chromosome. Thus, chromosome 18 is one of the smallest chromosomes in humans.
- Karyology is a branch of cytology that deals with the structure of the nucleus cells , particularly chromosomes.
- Cell biology is a study of cell structure and function, and is focused on the idea that the cell is the fundamental unit of life.

Thus the correct answer is option(D) Nucleus.

Note: Someone could order a chromosome analysis to look at a karyotype if they were concerned that a child might have an extra or incomplete piece of chromosome material. So one of the most common things we can see about karyotyping is extra Chromosome 21, which is associated with Down syndrome. karyotypes are also used when pregnant women want to have their unborn baby examined, and karyotype enables clinicians to look at and count chromosomes to determine whether or not the infant is affected by extra chromosomes.