What is the role of the guide RNA (gRNA) in CRISPR? 1. the gRNA opens the nucleus of a cell and allows the CRISPR CAS9 system into the nucleus.

2. the gRNA focuses the CRISPR CAS9 system on the specific sequence that needs to be cut.

3. the gRNA guides the CAS9 enzyme to the ends of the DNA molecule and lines up the appropriate bases.

4. the gRNA sequence is attached to the ends of introns so they can be removed by the CRISPR CAS9 system.

Which muscle is responsible for inhalation ?

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy? 

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one