BIOLOGY - Genetics - Cell Differentiation

The video explains how different cell types arise from the same DNA through differentiation. It covers embryonic stem cells, which can become any cell type, and adult stem cells, which are limited to certain tissues. Plant stem cells, found in meristems, can differentiate into any plant cell type. The video also highlights the role of genes in switching on and off to create specialized cells, and how this process is crucial for tissue repair and replacement in humans, as well as plant cloning.

What is the primary role of embryonic stem cells in an organism?

• To maintain tissues and organs

• To repair damaged cells

• To differentiate into any cell type

• To form only blood cells

How do adult stem cells differ from embryonic stem cells?

• They are not involved in tissue repair

• They can only form a few cell types

• They are only found in adults

• They can become any cell type

Where are adult stem cells typically found?

• In the lungs

• In the heart

• In the bone marrow

• In the brain

What is the function of plant stem cells located in meristems?

• To form only root cells

• To differentiate into any plant cell type

• To produce flowers

• To create seeds

How are commercial banana plants typically propagated?

• By natural pollination

• By cloning from meristem tissues

• By grafting

• Through seeds