Introns in pre-mRNA:a
code for specific protein domains.
b. are spliced out of the message.
c. move within the mRNA, giving rise to new exon combinations.
d. protect pre-mRNA from enzyme degradation
e. code for important amino acid sequences
b
You might also like to view...
Which is the correct order for the three lines of defense?
1.innate immunity, physical/chemical/mechanical barriers, adaptive immunity 2.physical/chemical/mechanical barriers, adaptive immunity, innate immunity 3.physical/chemical/mechanical barriers, innate immunity, adaptive immunity 4.innate immunity, adaptive immunity, physical/chemical/mechanical barriers
The atomic number is the number of
a. neutrons and protons. b. neutrons and electrons. c. protons and electrons. d. protons only. e. neutrons only.
Which organelle or structure is absent in plant cells?
A) mitochondria B) microtubules C) centrosomes D) peroxisomes
Which energy source is a nonrenewable resource?
A) solar energy B) hydrogen fuel cell C) wind power D) natural gas