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ELEN [110]
3 years ago
7

What is a sex linked trait? What is the difference in inheritance between boys and girls for sex linked traits? Describe an exam

ple of a sex linked trait in humans.
Biology
1 answer:
Romashka [77]3 years ago
8 0
A sex-linked trait is a trait that is carried by the X chromosomes in females but it is not expressed(the phenotype). Females are only carriers because they have two copies of the X chromosome [one of them carries the trait and the other does not]. Males who inherit one copy of the X chromosome often get the trait (because the trait is in either one copy or the other of the X chromosome) and express it while their Y chromosome would became recessive. Thus, only males express sex-linked traits such as hemophilia or color blindness
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Which of the following factors does not affect membrane permeability? View Available Hint(s) Which of the following factors does
Dima020 [189]

Answer:

The polarity of membrane phospholipids

Explanation:

The inner core of membranes is made of nonpolar tails of phospholipids which in turn makes the membranes impermeable for polar, large and charged substances since these substances cannot cross the non-polar inner core. The saturated hydrocarbon tails pack tightly and make membrane less permeable while cholesterol affects the membrane permeability by interacting with non-polar tails.

Higher temperatures make the membrane more fluid and more permeable while at lower temperatures, membranes are more rigid due to tight packing of hydrocarbon tails and less permeable. The polar heads of phospholipids make the inner and outer surface of the membrane. Therefore, the polarity of phospholipids does not affect the membrane permeability.

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3 years ago
Which of the following is not a fossil fuel
Nataly [62]
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Vsevolod [243]

Answer:

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Explanation:

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2 years ago
The agent of erosion that makes a rock fall from high places is A) water B) wind C) ice D) gravity
gogolik [260]
The agent of erosion that makes a rock fall from high places is gravity.

So the correct answer is D) gravity.

Hope this helps :)
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