Experiments are carried out to predict the fact. Normally, an experiment is constructed to be able to explain some kind of causation. Experimental research is important to people, it helps us to improve our everyday lives. It is basically to conduct a task (experiment) to get the results.
Punctuated equilibrium is the theory that species stay fairly constant until a natural disaster happens forcing them to rapidly evolve
Answer:
d. Meiosis II in the father
Explanation:
Since the son has two extra Y chromosomes, the nondisjunction would have occurred in father because females do not have Y chromosome. Before Meiosis DNA replication occurs during which the homologous chromosomes are replicated. During Meiosis I crossing over occurs and homologous chromosomes separate from each other. During Meiosis II sister chromatids of a chromosome separate and move into individual daughter cells.
Here, during Meiosis II the sister chromatids of Y chromosome did not separate from each other (nondisjunction). They collectively moved to one daughter cell. As a result one daughter cell had two Y chromosomes and other daughter cell had none. When the daughter cell containing two Y chromosomes combined with the daughter cell containing one X chromosome from mother, XYY individual was born.
<span>The rough ER contains many ribosomes. </span>
<span>Remember: ribosomes function in creating proteins (i.e. enzymes) from amino acids </span>
<span>The pancreas functions in the digestive system by producing many digesting enzymes. The cells of the pancreas must have lots of rough ER to meet this demand.</span>
