Nuclear matrix

In News: Using a novel method, a group of researchers from CSIR-Centre for Cellular and Molecular Biology, Hyderabad (CCMB) and Tata Institute for Genetics and Society, Bengaluru (TIGS), have established a way of studying the nuclear matrix of the fruit fly ( Drosophila melanogaster) without removing the nucleus from the embryo.

Nuclear matrix

• The nuclear matrix is like scaffolding (support).
• Every cell that makes up an organism contains a copy of its genome.
• This genome is packaged in special ways with the help of a structure known as the nuclear matrix.
• The nuclear matrix gives an organisation and architecture to the nucleus.
• The genome is in the nucleus, embedded and protected by the jelly-like nuclear matrix.
• This is a dynamic material providing access for the regulation of different genes in different cells.
• Studying the nuclear matrix is, therefore, very important to get a better picture of how precisely development progresses every time a new individual is born.
• The new method treats the nuclei within the embryo itself, known as in situ nuclear matrix.

Source: The Hindu

Previous Year Question

Q.1) Consider the following statements: (2020)

1. Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent.
2. A person’s genome can be edited before birth at the early embryonic stage.
3. Human-induced pluripotent stem cells can be injected into the embryo of a pig.

Which of the statements given above is/are correct?

1. 1 only
2. 2 and 3 only
3. 2 only
4. 1, 2 and 3