Category: General

What is Bitegmic ovule?

Integuments, micropyle and chalaza. An integument is a protective cell layer surrounding the ovule. Gymnosperms typically have one integument (unitegmic)...

What qualifies as a threat?

A threat is considered an act of coercion. Some of the more common types of threats forbidden by law are those made with an intent to obtain a monetary a...

Why carotene is orange?

The long chain of alternating double bonds (conjugated) is responsible for the orange color of beta-carotene. The conjugated chain in carotenoids means t...