Biology exam review

What is a gene?

• DNA is organized in segments called genes that control the production of a protein
• Protein is organized in segments called genes that control the traits of an organism
• Carbohydrate is organized in segments called genes that control the production of a protein

What is this structure called?

• chromosome
• sister chromatid
• chromatin
• Centromere

What is A called?

• chromosome
• sister chromatid
• chromatin
• Centromere

What is B called?

• chromosome
• sister chromatid
• chromatin
• Centromere

What is represented by this diagram?

• Non homologous chromosomes

• centromere

• Homologous chromosomes

• Single chromosome

How many chromosomes do humans have in each cell?

• 23
• 46
• 44
• 14

What are gametes?

• sex cells with diploid number of chromosomes.
• sex cells with haploid number of chromosomes.
• Body cells with diploid number of chromosomes.
• Body cells with haploid number of chromosomes.

How many chromosomes are in each human gamete?

• 46
• 100
• 23
• 53

What type of cell division reduces the number of chromosomes in a cell and produces gametes?

• Mitosis
• Binary fission
• Meiosis
• growth

What process is this diagram depicting?

• Prophase
• Metabolism
• Metaphase
• Crossing over
• Anaphase