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3 years ago

Show how two phenotypically normal parents can produce a male child with color-blindness.

Biology

1 answer:

Ronch [10]3 years ago

6 0

Answer:

The female (XcX) is carrier for color blindness while the male (XY) is normal. The carrier female transmits its one X chromosome with gene for color blindness to one of her sons making him color blind.

Explanation:

Color blindness is X linked recessive disorder and followed the criss-cross inheritance wherein the color blind sons get the gene from their carrier/affected mother while the color blind father would transmit the gene to his daughters along with X chromosome.

Since both the parents are normal, the mother (XcX) should be carrier for the disease to get the color blind son. A cross between carrier mother (XcX) and normal father (XY) would make 50% of their sons color blind.

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3 years ago

Eating potatoes with the skin as opposed to without the skin can increase dietary fiber intake. A medium-size baked potato weigh

KATRIN_1 [288]

Answer:

There are 1.6g more of fiber in the the potato with skin than the potato with flesh only

Explanation:

In the internet, you can find that a regular potato (medium-sized) with the skin contains about 4 grams of fiber; and half that is in the skin , thus a potato without skin contains about 2 grams of fiber.

In other site, I found that the source used to deal with this question states 4.2 grams of fiber for White, Flesh and Skin (173 grams) and 2.6 grams for Potatoes, Baked, Flesh Only (173 grams).

Therefore, using the second reference, the differnce in the amount of fiber, in grams, for the potato with skin and the potato with flesh only is:

4.2g - 2.6g = 1.6g

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