do the red blood cells of other animal lack a nucleus.for an eg a bird.pls explain
2006-07-13 03:24:06 · 4 answers · asked by and we all have loved before 2 in Science & Mathematics ➔ Biology
Yes, animal red blood cells lack a nucleus. As it states from "http://www.purchon.com/biology/animal.htm"
"I hope that you have learnt that all animal cells have a cell membrane, cytoplasm and a nucleus (red blood cells excepted) and that cells are specialised to do different jobs. A biologist would say that 'their structures are related to their functions'."
Animal cells are not much different from human cells so we also lack a nucleus in our red blood cells.
2006-07-13 03:31:05 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Red blood cells have a nucleus when they are first formed. This is the reticulocyte stage. They later loose the nucleus. The red cells of birds and some fish keep their nucleus through their entire lifetime.
2006-07-13 16:44:28 · answer #2 · answered by M31 2 · 0⤊ 0⤋
The reason that a red blood cell doesn't have a nucleus is that it would take up much needed space of Oxygen. You take out the nucleus that isn't needed and boom, more space for more oxygen! Thats my logical thinking! Don't know if that is 100% though! I have been wrong before(Once back in 1998).
2006-07-13 03:59:29 · answer #3 · answered by johnhategoblins 3 · 0⤊ 0⤋
some do, some dont.
example of animal with red blood cells with nucleus -frog
2006-07-13 04:01:55 · answer #4 · answered by iva 4 · 0⤊ 0⤋