atom is made up of 3 particles protons(positive charge), neutrons(neutral in charge), electrons (negative in charge). proton and neutrons are found in core of atom and form atomic weight of the molecule and electrons moves in shells around core.
example - sodium have 11 protons, 12 neutrons and 11 electrons.
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.
Because water keeps you hydrated and that's cool, but alcohol makes you drunk and that's not cool.
The process is named mitosis
A Intravenous pyelogram is a radiographic study of the kidneys and ureters with the use of an intravenous contrast medium.
<h3>What is radiographic study?</h3>
By taking pictures of the body's internal structure and analyzing them for signs of disease, foreign objects, structural damage, or anomalies, it can be used to diagnose or treat patients. A radiographic procedure involves passing an x-ray beam through the body.
<h3>What is intravenous contrast medium?</h3>
One kind of contrast media is intravenous contrast material, sometimes known as IV contrast in CT. These are a sizable set of chemical preparations created to help characterize pathology by enhancing an imaging modality's capacity to distinguish between various biological tissues.
<h3>What is the purpose of a radiology test?</h3>
Diagnostic imaging, or radiology, is the term for a group of procedures that include taking photos or images of various bodily parts.
Learn more about radiology here:
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