Different versions of the protein hemoglobin are found in a baby's blood cells at different stages of development. Changes in the hemoglobin type present are most likely the result of
A)what genes are transcribed.
B)whether or not the transcribed mRNA can leave the nucleus.
C)how translated RNA is cut up.
D)how mRNA is distributed in the red blood cells.

Question

Quizplus · Accepted Answer

The presence of different versions of hemoglobin in a baby's blood cells at different developmental stages is due to changes in gene expression, specifically which genes are transcribed. Different genes are expressed at different stages of development, leading to the production of different types of hemoglobin.

Different Versions of the Protein Hemoglobin Are Found in a Baby's