Sickle cell anemia is a genetic condition that occurs because of a single point mutation in the DNA gene for hemoglobin. How is this mutation
expressed in humans?
A. The chromosome carrying this gene changes shape during cell reproduction.
B. The carbohydrate coded by the DNA has a different structure.
C. The hormones in the blood are changed by increased differences in genes.
D. The protein coded by the DNA has a different amino acid sequence.

The science for classifying and naming organisms is known as

How water is moving through the ecosystem ?

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl