Seeds, flowering & phytochromes

IB Biology: Seeds, flowering & phytochromes

How can a pigment change the behaviour of the cellsHint: Click to display some suggestionsThe pigment must be changed by the light.There might be an active form of the pigment.The active form of the pigment could promote (or inhibit) gene expression.The first stages in the development of a mature seed are (broadly speaking) equivalent to the formation of a blastocyst in human reproduction. A fertilized egg cell divides...


To access the entire contents of this site, you need to log in or subscribe to it..

Click the free stuff button on the home page to access free pages or check the blog (which is also free).

All materials on this website are for the exclusive use of teachers and students at subscribing schools for the period of their subscription. Any unauthorised copying or posting of materials on other websites is an infringement of our copyright and could result in your account being blocked and legal action being taken against you.