The Nucleus and DNA

What is a gene?

• A bundle (like a hot dog bun) that the DNA is packed into
• something inside the nucleus
• a piece of DNA
• all of your DNA

The twisted ladder shape of DNA is referred to as a ....

• double ladder

• twisted ladder

• double helix

• DNA model

Which of the following statements about chromosomes is correct?

• Chromosomes are long, thread-like structures

• Chromosomes are found in the nucleus of all cells in the human body

• Chromosomes contain DNA

• All of the above

What does DNA stand for?

• Deoxyribosenucleic acid

• Deribosenucleic acid

• Deoxyribose

• Nucleic acid

A chromosome is best described as a

• gene that has more than one form.
  
• green cell found in many plants.
  
• strand of DNA containing genetic information.
  
• reproductive cell found in certain kinds of bacteria

Why are your chromosomes arranged in pairs?

• Scientists have no idea
• Because you get one from your mom and one from your dad
• Because pairs can divide easier
• Because DNA is awesome

From smallest to largest how would genetic information be organized?

• genes, cell, nucleus, chromosome, DNA

• chromosome, cell, gene, DNA, nucleus

• DNA, gene, chromosome, nucleus, cell

• nucleus, cell, gene, DNA, chromosome

Why is the nucleus important?

• Because is to efficiently package DNA into a small volume to fit into the nucleus of a cell and protect the DNA structure and sequence.

• Because it has a close relationship to the chromosomal matter of the cell.

• It contains the genetic materials which is responsible for controlling and directing all the activities of the cells.

Why is the nucleolus important?

• makes ribosomal subunits

• it sends subunits out to the rest of the cells where they form into complete ribosomes.

• Its functions aren´t much.

• Also, when the nucleolus forms ribosomes, the ribosomes makes proteins.

Why is the nucleus important?

• Because is to efficiently package DNA into a small volume to fit into the nucleus of a cell and protect the DNA structure and sequence.

• Because it has a close relationship to the chromosomal matter of the cell.

• It contains the genetic materials which is responsible for controlling and directing all the activities of the cells.