Chromosomes, Genes, and Cell Division

Cells in the body are all genetically identical.

• True
• False

Your genes will come from

• Dad only
• Mom only
• Half from Dad, half from Mom
• Depends

What is a gene?

• several chromosomes bonded together
• something inside the nucleus
• a piece of DNA that codes for a trait
• all of your DNA

What are structures found in cells that are found as pairs and carry your genes?

• Chromosomes
• DNA
• Alleles
• RNA

Humans have how many chromosomes in our body cells?

• 2
• 23
• 46
• 92

Why are genes important to living organisms?

• They can be passed on to offspring
• They can code for how your body will function
• They will code for all of your inheritable traits
• All of the above

What is one of the many versions of a gene known as?

• DNA
• Allele
• Chromosome
• Genome

What is the end result of mitosis?

• 2 genetically identical cells
• 2 genetically similar cells
• 4 genetically identical cells
• 4 genetically similar cells

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...

• 16 chromosomes.
• 46 chromosomes.
• 8 chromosomes.
• 4 chromosomes.

What process, and which type of resulting cells are represented?

• mitosis, sex cells (gametes)
• mitosis, body cells
• meiosis, sex cells (gametes)
• meiosis, body cells