Cell Regeneration and Repair

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How does Poss's team track the movement of skin cells in zebrafish during tissue regeneration and repair?

They take snapshots of skin cells, feed them into a computer, and use software to identify and track each skin cell based on its color.

What is the approximate time period for the entire population of skin cells to turn over in zebrafish, according to Poss's study?

20 days or so

How do skin cells respond to injury in zebrafish, as observed by Poss's team?

They race to the injury site, double in size to cover the damaged area, and a new sheet of skin cells is created to replace the damaged ones.

What is the significance of the unique color combinations of proteins in individual skin cells in Poss's study?

It allows for the identification and tracking of individual skin cells. Signup and view all the answers

What is the approximate time spent by a skin cell on the surface of the skin before it wears off, according to Poss's study?

About 8 days Signup and view all the answers

How does the ability to track individual skin cells contribute to our understanding of stem cell biology in zebrafish?

It allows for the study of cell dynamics and behavior in live animals, providing insight into the role of stem cells in tissue regeneration and repair. Signup and view all the answers

What is the main objective of studying the skinbow fish in relation to tissue regeneration?

To reveal more about how tissue regeneration occurs, a process that is still mysterious. Signup and view all the answers

What is the significance of the skinbow fish in exploring skin biology, according to Christine Pullar?

It can be used to explore skin biology on a new level. Signup and view all the answers

How does the plant gene help the insects in the article 'Plant gene has naturally crossed into insects – and helps them feed'?

It helps them feed. Signup and view all the answers

What is the purpose of identifying genetically modified zebrafish in the article 'Identification of Genetically Modified Zebrafish (Danio rerio) by Protein- and DNA-Analysis'?

To distinguish them from non-genetically modified zebrafish. Signup and view all the answers

What does the skinbow fish model reveal about cell movement during skin regeneration?

It shows how cells move when skin regrows. Signup and view all the answers

What is the potential application of understanding tissue regeneration in the skinbow fish, according to the article 'Fish with rainbow skin shows how cells move when skin regrows'?

Improving wound healing and tissue repair. Signup and view all the answers

What is the potential application of the 'skinbow' zebrafish in tracking individual cells during development, movement, and regeneration?

The huge variation in colour could be used to track individual cells as they develop, move and regenerate. Signup and view all the answers

What is the genetic mechanism responsible for the production of only one colour at a time in the 'skinbow' zebrafish?

The gene that codes for red, blue and green fluorescent proteins, but only one colour is produced at a time. Signup and view all the answers

What is the role of the gene that codes for fluorescent proteins in the 'skinbow' zebrafish, and how does it relate to the skin cells' colours?

The gene codes for red, blue and green fluorescent proteins, and its expression in skin cells determines the colour of the fish. Signup and view all the answers

What is the advantage of using the 'skinbow' zebrafish in studying tissue regeneration, and how does it relate to the fish's skin cells' colours?

The colours of the fish's skin cells can be used to track the regeneration of tissues, allowing for the study of the process in real-time. Signup and view all the answers

What is the relationship between the number of gene copies and the production of fluorescent proteins in the 'skinbow' zebrafish?

Each of the fish's skin cells has about 100 copies of the gene, and whether each gene creates a red, green or blue protein is entirely random. Signup and view all the answers

What is the significance of the 'skinbow' zebrafish in understanding the unpredictability of genetically engineered animals?

The 'skinbow' zebrafish demonstrates that the outcome of genetic engineering cannot be fully predicted, as seen in the development of unexpected patterns in the skin cells. Signup and view all the answers

Cell Regeneration and Repair

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