The extra X chromosome is received from mother.
<h3><u>Explanation</u>:</h3>
Klinefelter's syndrome is the condition of chromosomal aberration where the person has an extra X chromosome. This means the genotype of the person is 44+XXY and the total chromosome number is 47. This condition is achieved due to inappropriate meiotic division and one of the sperm or ovum has the an extra X chromosome.
Here both the parents are normal in terms of colour vision. So the father cannot have the gene of colour blindness because if it was present, then father would have been colour blind because he has only one X chromosome per cell. So its present in mother who is heterozygous in terms of colour blind gene. So the extra X chromosome also came from her which made the presence of two defective X chromosomes in the offspring and made it colour blind.
Answer:Greenhouse gases allow thermal energy to pass through the atmosphere and back out into space
Explanation:
Answer:
Synaptic transmission consists of three steps: (1) intracellular vesicles loaded with neurotransmitters are targeted to the presynaptic membrane; (2) an action potential triggers exocytosis to release the neurotransmitters to the synaptic cleft between two neurons
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Answer: A. Make A Guess
Explanation: A hypothesis is a statement you test, first you have to come up with an idea or theory to test, which would then become your hypothesis.
The answer is.. C, Network!
