Explanation

• During Anaphase, the contraction of spindle fibers takes place, resulting in the separation of sister chromatids and their movement towards opposite poles of the cell.
• This stage is characterized by the pulling apart of the sister chromatids, ensuring each daughter cell receives a complete set of chromosomes.

Explanation

• During Metaphase, the chromosomes align at the center of the cell, attached to the spindle fibers formed by the centrioles (also known as microtubules).
• This is the stage where the chromosomes are connected to the spindle fibers, preparing for separation.

Explanation

• During Prophase, the chromatin condenses and becomes visible as chromosomes.
• This is the stage where the chromatin becomes thickened, shortened, and organized into visible chromosomes.

Explanation

Chromosomes are made up of:

• Nucleic acid (DNA or RNA)
• Proteins (histones and non-histone proteins)

Explanation

• The nucleus is responsible for cell division because it contains chromosomes, which are made up of DNA and proteins.
• Chromosomes carry the genetic information necessary for cell division, growth, and function.

Explanation

• Meiosis is the process by which sex cells (sperm and egg cells) are divided and gametes are formed during reproduction in humans.
• Meiosis involves two successive cell divisions (meiosis I and meiosis II) that result in four non-identical daughter cells, each with half the number of chromosomes as the parent cell.

Explanation

• Chromosomes are thread-like structures made up of DNA and proteins that carry genetic information from one generation to the next.
• They are found in the nucleus of living cells and play a crucial role in inheritance and genetic diversity.

Explanation

• Cell division is the process by which a cell splits into two daughter cells, resulting in the multiplication of new cells.
• This process is essential for growth, development, and tissue repair in living organisms.

Explanation

Calcium is essential for strong, healthy teeth

Because it helps remineralize enamel

Explanation

Penguins are aquatic, flightless birds that are highly adapted to life in the water.

Additional information:

Flightless birds are usually birds with primordial wings or heavy weight.