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Maurinko [17]
3 years ago
10

Which of the following is an example of a nonpit source of freshwater pollution

Biology
1 answer:
boyakko [2]3 years ago
5 0
Agricultural chemicals is an example of a nonpit source of freshwater pollution
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Frank has Klinefelter syndrome (47, XXY). His mother has normal skin, but his father has anhidrotic ectodermal dysplasia, an X-l
Gala2k [10]

Answer:

b. Frank received the mutant chromosome from his father. Nondisjunction occurred in his father during the first meiotic division.

Explanation:

As you can see in the question above, Frank has Klinefelter syndrome which causes him to have normal skin patches and skin patches without sweat glands. Her mother has completely normal hair, which may indicate that the defective gene was not supplied by her. In addition, Frank's father has anhydrotic ectodermal dysplasia, an X-linked condition where the skin does not contain sweat glands.

Although Frank's father's defective gene is linked to the X chromosome, it is likely that Frank inherited the defective gene from his country. This may have occurred because during meiosis I, his father's genes did not show disjunction. As a result, Frank presents a mosaic of his phenotype, because an inactivation of the X chromosome occurred.

5 0
3 years ago
HELP QUICK-Which of the following is true regarding the atoms involved in a chemical reaction?
NeTakaya

Answer:

The same number of each type of atom will always be present before and after a chemical reaction takes place.

Explanation:

8 0
3 years ago
PLS HELP ME I NEED THIS ASAP!!!
nataly862011 [7]

Each cell has ______<u>(Sorry I don't know this one either)</u>______ genes activated depending on it's job and what kind of cell it is.


It is the presence of ____<u>Lactose</u>____ that causes the repressor protein to fall off and unblock the gene on the lac operon.


If a gene is turned on then it is being ______<u>expressed</u>______.


An additional circular chromosome found in some bacteria that is used in genetic engineering. Plasmid

8 0
3 years ago
How do facilitated diffusion and active transport differ? Is osmosis an example of facilitated diffusion or active transport?
castortr0y [4]
Note that Facilitated diffusion , Active transport and Osmosis are three different ways of transporting substances across the cell surface membrane.

Facilitated diffusion is the movement of a substance from high to low concentration , similar to simple diffusion , but due to the complexity of the cell surface membrane , polar molecules and ions cannot just pass like that , so they pass through specific carrier and channel proteins in the cell surface membrane and so we call it facilitated diffusion.

For Active transport , it's the movement from low to high concentraion using energy from ATP

For Osmosis , it's totally different . You only name osmosis when its all about water . Its the net movement of water from high water potential to low water potential through partially permeable membrane .
If you're doing AS , you'll be familiar with Endosmosis and Exosmosis.
3 0
3 years ago
Within the inner membrane of a chloroplast, interconnected sacs of membrane called ________ are suspended in a thick fluid calle
antiseptic1488 [7]

Answer:

Thylakoids, stroma

Explanation:

The interconnected flattened sacs within the inner membrane of the chloroplast are called thylakoid. Many thylakoids are come together and get arranges in a stack called a granum.

Thylakoid contains chlorophyll pigment and is responsible for absorbing the sunlight and conducting light reaction. These thylakoids or grana are suspended in a liquid called the stroma.

The stroma contains the enzymes which are required in the light-dependent reaction. It contains DNA, ribosome, starch. The synthesis of organic molecules occurs in the stroma.

3 0
3 years ago
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