Who Discovered Chromosomes?

The history of cytogenetics dates back to the late 1800s when the first observations of chromosomes were made.

Since then, several scientists have contributed to the field, including Theodor Boveri, Walter Sutton, Thomas Hunt Morgan, and Barbara McClintock, among others.

Read on to know who discovered chromosomes and the contributions of other renowned scientists in the study of chromosomes.

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The image shows the different stages in the mitosis type of cell division. Mitosis goes through the following stages — prophase, metaphase, anaphase, and telophase — and ends with cytokinesis.

What Structure Forms in Prophase Along Which the Chromosomes Move?

Prophase, the first of four mitosis stages, is when the genetic material in the cell, which is organized into structures called chromosomes, begins to condense and become visible under a microscope.

This condensation allows the chromosomes to be more easily separated and distributed to the two daughter cells.

Learn how these chromosomes are separated.

What Structure Forms in Prophase Along Which the Chromosomes Move? Read More »

In a Germ-line Cell From a Human Male That Is Dividing, When Do the X and Y Chromosomes Segregate?

Chromosome segregation is the process by which chromosomes are separated during cell division.

During meiosis, chromosomes are replicated and then divided into two sets of chromosomes.

Each set of chromosomes is then packaged into a separate nucleus, which gives rise to two genetically distinct cells.

Learn when the X and Y chromosomes segregate in a germ line cell.

In a Germ-line Cell From a Human Male That Is Dividing, When Do the X and Y Chromosomes Segregate? Read More »