Multiple Choice
Hemoglobin in the embryo consists of
A) two alpha chains and two beta chains.
B) two epsilon chains and two zeta chains.
C) two gamma chains and two alpha chains.
D) two gamma chains and two beta chains.
E) one alpha chain, one beta chain, one epsilon chain, and one gamma chain.
Correct Answer:

Verified
Correct Answer:
Verified
Q22: About _ percent of human genes are
Q23: A promoter of a gene is the
Q24: Globin chain switching replaces gamma chains with
Q25: The complexity of microRNA function is that<br>A)
Q26: A microRNA is _ bases long.<br>A) 2-4<br>B)
Q28: Fetal hemoglobin carries _ percent more oxygen
Q29: Modifiers of gene expression include<br>A)isolated amino acids
Q30: Histone proteins<br>A) are male sex hormones.<br>B) are
Q31: Pseudogenes are<br>A) not transcribed.<br>B) transcribed but not
Q32: The term _ refers to genes that