Answer:
Cellular differentiation is the process in which a cell changes from one cell type to another. Usually, the cell changes to a more specialized type. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.
We would need to see the diagram in order to answer the question correctly. without the diagram we can't help
Answer: A
Explanation: A stream terrace basically forms through this process– Temporary base level is eliminated; the stream downcuts upstream from the old temporary base level, and the former floodplain is left well above the present elevation of the stream.
Some species are more likely to perish but, the most healthy frogs will most likely evolve and find something else to eat.
Out of the following
given choices;
a. Valine instead of glutamic acid in the
sixth position
b. Glutamic
acid replacing valine in the first position
c. Extensive
amino acid substitutions
d. Trinucleotide
repeats
e. Frameshift substitutions
The answer is A. this is caused by a mutation in the beta
thalassemia genes on one of the 46 human chromosomes (chromosome #11) of the individual.
The alpha subunit is normal in people with sickle cell disease. When sickle
hemoglobin releases oxygen in the peripheral tissues, the molecules tend to
stick together and form long chains or polymers. These rigid polymers distort
the cell and cause it to bend out of shape from
the normative disc shape.
