Cell Cycle and Mitosis Concepts

Front

What are the parts of a DNA nucleotide?

Back

A DNA nucleotide consists of three parts: a phosphate group, a deoxyribose sugar, and a nitrogenous base (adenine, thymine, cytosine, or guanine).

Front

What occurs during telophase in mitosis?

Back

During telophase, two new nuclei form around the separated sets of chromosomes, marking the end of mitosis.

Front

What is the complementary DNA strand for the sequence A T G G G C?

Back

The complementary DNA strand is T A C C C G.

Front

In which phase of mitosis are sister chromatids separated?

Back

Sister chromatids are separated during anaphase.

Front

What role do enzymes play in DNA replication?

Back

Enzymes open the DNA strand and bring matching nucleotides to build new strands.

Front

What is the function of the phosphate group in a DNA nucleotide?

Back

The phosphate group links the sugar of one nucleotide to the sugar of another, forming the backbone of the DNA strand.

Front

What is the significance of deoxyribose in DNA?

Back

Deoxyribose is the sugar in DNA nucleotides, which distinguishes DNA from RNA (which contains ribose).

Front

What happens during prophase of mitosis?

Back

During prophase, chromosomes condense and become visible, and the nuclear envelope begins to break down.

Front

What is the role of spindle fibers during mitosis?

Back

Spindle fibers help separate the chromosomes and pull them to opposite poles of the cell during mitosis.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and thymine, while RNA contains ribose sugar and uracil.