M1: Nucleic Acid Structure Study Guide

DNA does what to the genetic information?

Stores it

RNA does what to the information?

Transfers information from nucleus to cytoplasm

Purines rings are:

double rings

G and A

Pyrimidines rings are:

singular rings

C, U, and T

Nucleosides are made of what?

Base and sugar

Nucleotides are made of what?

Base, sugar, and phosphate

Transcriptions and translations happen in which groove?

Major group where there is more space

Most common and stable form of DNA is which?

B form

How is the B form structured?

Double stranded and right handed

Which DNA form is good for recombination and gene expression? Is it left or right handed?

Z form and its left handed

Unique or single copy DNAs are about how much percent of DNA?

50-60%

Moderately Repet. DNA are about how much percent of DNA?

30%

Highly Repet. DNA are about how much percent of DNA?

10%

What are found in mRNA?

Triple codons, which are coded for specific amino acids

Least abundant

Function of tRNA in protein synthesis is what?

It transfers amino acids to mRNA

Function of rRNA in protein synthesis is what?

Serve as protein factories

Most abundant

Function of snRNA in protein synthesis is what?

Splicing in cells that have a nucleus by helping to remove the introns