Chromosome Structure and Function

The video tutorial explains the structure and function of chromosomes, focusing on sister chromatids and homologous chromosomes. It covers the cell cycle stages, including interphase, where DNA replication occurs, and prophase, where chromosomes condense. The tutorial also discusses karyotypes and the arrangement of chromosomes during metaphase, highlighting the process of chromosome separation. The video concludes with a reminder of the importance of kindness.

What do chromosomes contain that determines your physical appearance?

• Blueprints

• Lipids

• Proteins

• Carbohydrates

During which phase does DNA replication occur?

• Anaphase

• Metaphase

• Prophase

• Interphase

What is the appearance of DNA during interphase often compared to?

• A bowl of rice

• A loaf of bread

• A stack of pancakes

• A plate of spaghetti

What structure do sister chromatids form during prophase?

• A circle

• A square

• An X shape

• A triangle

What connects sister chromatids together?

• Telomere

• Nucleosome

• Centromere

• Histone

What is a karyotype used to identify?

• The type of cell

• The arrangement of chromosomes

• The number of proteins

• The sequence of DNA

What is the main characteristic of homologous chromosomes?

• They are completely different

• They are similar but not identical

• They are identical

• They are only found in males

During metaphase, where do chromosomes align?

• At the cell membrane

• At the cell poles

• In the nucleus

• In the middle of the cell

What structure do chromosomes attach to during metaphase?

• Ribosome

• Nucleolus

• Spindle fiber

• Centromere

What happens to chromosomes during metaphase?

• They dissolve

• They condense

• They replicate

• They line up and separate