DNA and Genetics Quiz

What makes DNA a universal language?

• It is spoken by all humans.

• It contains genetic information shared by all living things.

• It is written in the same way across all species.

• It is used to communicate emotions.

What are the four bases found in DNA?

• Adenine, Guanine, Cytosine, Thymine

• Adenine, Guanine, Cytosine, Uracil

• Adenine, Guanine, Cytosine, Ribose

• Adenine, Guanine, Cytosine, Phosphate

What is the role of DNA in living organisms?

• It acts as a source of energy.

• It serves as an instruction manual for life.

• It provides structural support to cells.

• It regulates body temperature.

How many pairs of chromosomes are present in human cells?

• 23 pairs

• 24 pairs

• 22 pairs

• 25 pairs

What percentage of genes are conserved between fruit flies and humans?

• About 50 percent

• About 60 percent

• About 70 percent

• About 80 percent

What can a slight alteration in the order of DNA bases cause?

• No effect at all

• A change in protein production

• A change in the number of chromosomes

• A change in the cell's energy level

What is the field of comparative genomics dedicated to?

• Studying the behavior of animals

• Decoding the DNA of different organisms

• Analyzing the diet of various species

• Observing the physical traits of plants

What does DNA dictate in humans?

• The amount of energy produced

• The color of the skin

• Traits like hair and eye color

• The ability to speak different languages

What is the significance of the genetic code being shared among all living things?

• It allows for the creation of new species.

• It shows a common ancestry.

• It leads to identical physical traits.

• It results in the same lifespan for all organisms.

What is the effect of reorganizing or skipping bases in a DNA sequence?

• It has no effect on the organism.

• It can cause the body to produce a different protein.

• It increases the organism's lifespan.

• It enhances the organism's intelligence.