Blog

Each messenger RNA (mRNA) codon corresponds to…

Genetic engineers use Cas9 and restriction enzymes to cut DNA in specific locations. Cas9 and restriction enzymes are naturally found in ________ which use them to fight off viral infections.

During DNA replication, our cells use the enzyme helicase to “unzip” the two strands that comprise the DNA molecule. To make copies of specific DNA sequences in the lab, scientists use polymerase chain reaction (PCR).  PCR mimics DNA replication in some ways, but not in how the two strands are pulled apart. How are the two strands of DNA unzipped during PCR? 

The building blocks of DNA are nucleotides. There are four unique nucleotides found in DNA, adenine (A), cytosine (C), guanine (G), and thymine (T). What component of a nucleotide gives its unique characteristics and corresponds to its shortened name?

A tumor that has spread to many organs has entered the stage of _______.

Which of the following correctly describes the process of gene expression?

When one DNA molecule is replicated, the resulting two DNA molecules contain [answer1]. This outcome is the result of DNA replication being [answer2].

Gaucher Disease is caused by an autosomal recessive allele. A woman has a child with Gaucher Disease, but she is uncertain who the father is. One of the possible fathers has Gaucher Disease. The other possible father does not have the disease. Based on this information, the woman cannot identify which of these two men is her child’s father with 100% certainty. True or false?

Which of the following makes the sentence FALSE? “You should protect your skin from UV radiation in order to…”

A man has wet earwax. His wife and their daughter have dry earwax. Wet earwax is an autosomal dominant trait. The couple is expecting a second child. What is the probability that this child will have wet earwax like his father? Enter your answer as a number between 0 and 1.