In humans, the embryonic and fetal forms of hemoglobin have a higher affinity for oxygen than that of adults. This is due to
A) nonidentical genes that produce different versions of globins during development.
B) identical genes that generate many copies of the ribosomes needed for fetal globin production.
C) pseudogenes, which interfere with gene expression in adults.
D) the attachment of methyl groups to cytosine following birth, which changes the type of hemoglobin produced.
E) histone proteins changing shape during embryonic development.
On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major
Umberto Boccioni, Unique Forms of Continuity in Space.
If enough vapor is added to the air to saturate it, a precipitation fog forms beneath the cloud
Comparison of the two major forms of DNA
Solid Drug Forms
Humans are related to Earth’s other organisms