non coding rnas

Question 1

ribozymes are rna molecules with what type of activity

Answer 1

catalytic

Question 2

smy rna are family of ncRNAs in nematodes that are thought to be involved in a special type of rna splicing. Based on this function, SmY RNA are most likley members of which category of ncRNAs

Answer 2

snRNA

Question 3

what does Cas9 do in CRISPR- Cas system

Answer 3

cuts DNA sequences they target

Question 4

steps of RNA interference

Answer 4

Processing of RNA transcript by DGCR8, transport to cytoplasm, processing Dicer, binding to RISC, binding to target mRNA

Question 5

which tpes of ncRNA normally originate from a source other than the cells in which they act?

Answer 5

siRNA

Question 6

ncRNA that coats one of the X- chromosomes in mammals to create a BArr body

Answer 6

Xist RNA

Question 7

how does ncRNA HOTAIR inhibit transcription

Answer 7

by causing chromatin modification

Question 8

which of the following types of ncRNA act to prevent the movement of transposable elements

Answer 8

piRNA

Question 9

The CRISPR-Cas system in bacteria is most similar to what system in vertebrates

Answer 9

immune system