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astraxan [27]
3 years ago
15

Which of these describes a scientific theory?

Biology
2 answers:
prohojiy [21]3 years ago
5 0
You need to add the choices hon
lesya692 [45]3 years ago
4 0

Answer:

good question

Explanation:

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A color-blind (X-linked recessive) human with Klinefelter syndrome has parents both of whom have normal color vision. 4a. From w
sineoko [7]

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.

5 0
3 years ago
An organic molecule will always contain _____. a.carbon b.carbon and hydrogen c.hydrogen d.O, H, and C
Yanka [14]
An organic molecule will always contain CARBON. 
The correct option is A.
An organic molecule or compound refers to a chemical entity in which one or more atoms of carbon are bonded covalently with atoms of other elements. Because of the number of valence electron that carbon possess, it has the capacity to form different types of chemical bond with different types of elements. 
3 0
3 years ago
Read 2 more answers
What are the two main functions of the nervous<br>system?​
mamaluj [8]

Answer:

sensory and integration

Explanation:

those are the two main functions.

5 0
3 years ago
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Knowing how food choices impact the function and productivity of cells, why do you think it is important to maintain a healthy d
Scilla [17]

Answer:

healthy diet prevents and protects from diseases like obesity, heart disease, diabetes, cancer and stroke. constantly eating junk food can lead to obesity and chronic diseases like cardiovascular disease, type 2 diabetes, non-alcoholic fatty liver disease and some cancers.

Explanation:

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All of the following are disorders that affect the respiratory system EXCEPT for
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Answer:

cold i guess...........

6 0
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