Which of the following has a true nucleus throughout its life? A ) Liver cell B ) R.B.C of humans C)Phloem sieve tube D) bacterium
Answers
Answer:
D) BACTERIUM
Explanation:
The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.
Answer:
Your Required Answer is Liver Cells.
Reason:
LIVER CELL:
Hepatocytes or liver cell are made of epithelial tissues with large centrally located conspicious round nuclei through out their life cycle.
R.B.C. OF HUMAN:
It is quite interesting RBC of Humans primarily contain small nucleus (i.e) before maturing of RBC but once they got matured their nucleus disappears (i.e) enucleated - previously present but now absent so it doesn't have nucleus throughout the life
PHOLEM OF SIEVE TUBE:
Pholem of sieve tube typically lack nucleus and just contain small amount of ribosomes. As their nucleus are absent their activities are controlled by Companion cells. Companion cells contain nucleus.
BACTERIA:
A typical bacteria is anucleated (i.e) no nucleus is present since the birth since nucleus is absent it activities are controlled by genetic material called DNA.
Hope it helps