15 Questions
What is the primary function of the nucleus in a cell?
To enclose and protect the cell's genetic material (DNA)
Which type of cells do not have a nucleus?
Prokaryotic cells
Where is the nucleus located within a eukaryotic cell?
In the center of the cell, surrounded by other organelles
What organelle is found on the surface of the nucleus?
Ribosomes
What does the term 'nucleus' refer to in chemistry?
The center of an atom, composed of protons and neutrons
What are the four nitrogenous bases present in DNA?
Adenine, Guanine, Cytosine, Thymine
Which base pairs consistently with adenine in DNA?
Thymine
What replaces thymine in RNA during base pairing?
Uracil
Which molecule carries amino acids and bonds with mRNA during translation?
Transfer RNA (tRNA)
What is the process by which genes in DNA direct life processes known as?
Gene Expression
What is the primary function of the nucleolus?
To produce ribosomes
What is the role of the nuclear envelope?
To facilitate the movement of substances in and out of the nucleus
What is the relationship between DNA and chromatin?
Chromatin is the structure formed by DNA and proteins
What is the purpose of gene expression in different cell types?
To control the differentiation and specialization of cells
What is the process by which the nucleus initiates cell division?
It condenses its chromatin into chromosomes and replicates them
Learn about the importance of the nucleus, often referred to as the 'brain' of the cell, in protecting and controlling the cell's genetic material. Explore how the nucleus plays a vital role in DNA replication and overall cell function.
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