Gene Expression | Biology | Quiz

1. If a disease shows up in several members of the same family but skips generations, it is most likely

linked to a recessive gene.

linked to a dominant gene.

not deadly.

not genetically transmitted.

2. Garrod’s research built on previous work by

Leonardo da Vinci.

Mendel.

Beadle.

Tatum.

3. After studying medical conditions that ran in families, Archibald Garrod concluded that

certain errors of metabolism were caused by a recessive gene.

the conditions resulted from an enzyme deficiency.

there was a connection between genes and enzymes.

All of the answers are correct.

4. Which of the following was NOT an advantage of using Neurospora crassa (N. crassa) bread mold instead of fruit flies to study genetics?

N. crassa can produce spores that carry just one set of chromosomes.

N. crassa spores were easy to pick up with tweezers for analysis.

It is easy to observe whether the bread mold is growing on top of gel.

It is easy to control the nutrients given the spores.

5. A person with blue eyes has

defective pigment genes.

one dominant pigment gene.

two dominant pigment genes.

one recessive pigment gene.

6. Beadle and Tatum’s “one gene, one enzyme” hypothesis has been expanded to

“one gene, one DNA.”

“one gene, one RNA.”

“one gene, one hereditary disease.”

“two genes, one enzyme.”

7. The Central Dogma of molecular biology states that genetic information moves in one direction, from

protein to RNA to DNA.

RNA to DNA to protein.

DNA to RNA to protein.

RNA to protein to DNA.

8. Chemicals in the body are converted and broken down by

enzymes.

lipids.

traits.

wild types.

9. Gene expression refers to

the molecular structure of DNA.

the process by which protein manufactures DNA.

the process by which genetic information in the form of DNA is converted into a gene product, such as an enzyme, through a series of chemical reactions.

the fact that biological processes rely on chemical reactions.