Answer:
1. Klinefelter syndrome
2. Nobody can be born with a single X chromosome
Explanation:
1. A genetic condition in which a male is born with an extra copy of the X chromosome
Klinefelter's syndrome isn't inherited, but rather occurs only as a result of a random genetic error after conception.
Males born with Klinefelter's syndrome may have low testosterone and reduced muscle mass, facial hair and body hair. Most males with this condition produce little or no sperm,
2. Sex chromosome occurs due to combination of the X and Y chromosome of both parents.
Answer:
Both are Homozygous
Explanation:
A Husband and Wife with curly haired husband(CC) and straight haired wife have all their children curly haired because the gene for curly hair is dominant than straight hair. So, in the progeny, curly hair only.
This represents the Mendel’s Law of dominance which is also the Mendel Third Law which states that one of the factors for a pair of inherited traits will be dominant and the other recessive, unless both factors are recessive.
So, the correct option is ‘Both are homozygous'.
America, Russia or China.
Probably America though.
The answer choice above which best describes how the cell cycle relates to neurons is:
Neurons do not go through M phase.
Option a is the correct answer
<h3>What is a neuron?</h3>
A neuron is defined as structural and functional unit of the nervous system
Complete question:
In humans, adult brain cells called neurons are terminally differentiated. This means that they are completely mature and no longer undergo the cell cycle.
Which of the following statements best describes how the cell cycle relates to neurons?
a. Neurons do not go through M phase.
b. Neurons passes through the M phase
c. None of the above
So therefore, the answer choice above which best describes how the cell cycle relates to neurons is:
Neurons do not go through M phase.
Learn more about neurons:
brainly.com/question/11538106
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