Noor Biology Finals

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

What is a gene

• A long length of DNA that codes for a chromosome

• A short length of DNA that codes for a chromosome

• A short length of DNA that codes for a protein.

The number of human chromosomes is

• 23

• 46

• 92

• 64

How many pairs of chromosomes do you have?

• 2

• 46

• 23

• 8

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 is a long coiled strand of DNA and proteins?

• gene

• RNA

• chromosome

• genome

What is a short segment of a DNA strand that codes for our characteristics?

• chromosome

• DNA

• RNA

• gene

From smallest to largest how would genetic information be organized?

• genes, cell, nucleus, chromosome, DNA

• chromosome, cell, gene, DNA, nucleus

• DNA/nucleotides, gene, chromosome, nucleus, cell

• nucleus, cell, gene, DNA, chromosome

A change in DNA or chromosomes

• Mitosis
• Meiosis
• mutation
• Osmosis

What are homologous chromosomes?

• Two chromosomes that are the same length

• Two chromosomes that have the centromere in the same position

• Two chromosomes that have genes for particular characteristics at the same location along their length

• All of the above