Fun Facts
Kiss my Cas
Gene-edited lions and tigers and bears, oh my!
Crispy Characters
Editing 101
100

Abbreviated IGI, this institute offers the world's premiere journal club.

What is the Innovative Genomics Institute?

100

This is easily the most famous Cas protein.

What is Cas9?

100

Aaron Pomerantz spends his days editing these organisms, wondering how their DNA controls their ornate wing patterns.

What are butterflies?

100

This disgraced scientist edited the first "CRISPR babies."

Who is He Jiankui?

100

Many online tools exist to help would-be genome editors design these molecules, which direct Cas effectors to genomic target sites.

What are guide RNAs?

200
Mutations in hemoglobin cause blood disorders like thalassemia and this disease, apparently the first to be cured using CRISPR editing.

What is sickle cell disease?

200

Biggiephages encode this protein, whose discoverers eschewed traditional naming conventions.

What is CasPhi?

200

Banfield lab scientists recently developed a method to engineer microbes within diverse microbial communities, and rely on this sequencing approach to detect their edits.

What is metagenomic sequencing?

200

UC Berkeley continues to battle this organization over the IP rights to the CRISPR-Cas9 system.

What is the Broad Institute?

200

A double-strand break can trigger repair through two common pathways, HDR and this "error-prone" option.

What is NHEJ?

300

During her first research experience, Jennifer Doudna studied how the fungus Phytophthora palmivora infects this tropical fruit, popular in her home state of Hawaii.

What is papaya?

300

This Cas protein targets RNA and can be used in diagnostics.

What is Cas13?

300

Golden rice is engineered to produce this precursor of vitamin A.

What is beta-carotene?

300

This wooly scientist is trying to edit elephant cells to "resurrect" wooly mammoths.

Who is George Church?

300

To make double-strand breaks, Cas9 uses a RuvC domain and this nuclease domain, named for conserved amino acids in its active site.

What is an HNH domain?

400

As "Walk Like an Egyptian" topped the charts, the first CRISPR array was discovered during this year.

What is 1987?

400

Involved in acquisition, this protein is part of every functioning CRISPR system. 

What is Cas1?

400

In 2019, scientists edited snails to change whether their shells twist to the left or to the right, uncovering the genetic basis of this geometric property, which gets its name from the Ancient Greek word for hand.

What is chirality?

400

This self-proclaimed "biohacker" publicly injected himself with what he claimed were genome editing reagents in 2017.

Who is Josiah Zayner?

400

The Cas9 protein from Streptococcus pyogenes recognizes this three-letter PAM sequence.

What is NGG?
500

She is Megan’s all-time favorite CRISPR scientist. 

Who is Makarova?

500

Named after a mountain range, this multi-subunit effector complex recruits a separate nuclease-helicase to cleave its DNA targets.

What is Cascade?

500

When this gene, which controls muscle growth is naturally mutated or knocked out with CRISPR, beagles, cattle, and other lab animals get swoll.

What is myostatin?

500

CEO of Caribou Biosciences, this Doudna lab alum spent her time in grad school studying crRNA-processing enzymes.

Who is Rachel Haurwitz?

500

Base editing uses a Cas9 protein fused to this enzyme, which comes in varieties that act on cytosine or adenine.

What is deaminase?