Humans have approximately 20 000 genes, while they have only 46 Chromosomes - so we see there are a lot more genes than chromosomes and there must be multiple genes per chromosome - <span>B. Every chromosome is made up of many genes.
In fact, we know quite a lot about our chromosomes, but we don't even know how many genes exactly we have!</span>
The answer is called a centromere. Hope this helps.
Answer:
C
Explanation:
Phototaxis (phototactic response) is the cellular behavior in which cells swim toward or away from the light source. The euglena have eyespots that detect light so that it can move toward sunlight for photosynthesis.
What are you asking, if you tell me, I might be able to help.
