Genetics and Heredity Quiz

1. DNA contains ____________ which controls traits.

• phenotypes
• nomes
• genes
• vacuoles

2. The X-shaped structures in the nucleus of the cells which contain genes are known as

• chromosomes
• phenotypes
• traits
• vacuoles

3. Parents pass which of the following to their offspring.

• plant cells
• only small sections of the DNA
• chloroplasts
• traits

5. Which of the following is not an inherited trait?

• length of hair
• shape of face
• texture of hair
• shape of eyes

7. When you unwind chromosomes, you have double-stranded helix structures called _____________. This is the genetic information found in animals.

• Genes
• Traits
• chromosomes
• DNA

8. Where would the chromosomes be located?

• plasma membrane
• vacuoles
• mitochondria
• nucleus

9. What is a section of the DNA called that controls a trait?

• meme
• gene
• geme
• mene

10. All genes come in pairs called __________.

• Alleles
• chromosomes
• DNA
• bacilli

11. How many total chromosomes does each human cell have?

• 23 pairs
• 21 pairs
• 46 pairs
• 2 pairs

12. Genotype is the

• all of the genes carried by an organism.
• all of the genes expressed by an organism.
• all of the genes avoided by an organism.
• none of the above