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Lesechka [4]
3 years ago
5

A woman who is a carrier for XLA marries a man who does not have the disorder. They have four sons. How many could be expected t

o have XLA?
Biology
1 answer:
ss7ja [257]3 years ago
8 0

Answer:

Their sons have 50% chance of having XLA.

Explanation:

X-linked agammaglobulinemia (XLA) is a genetic disorder that affects person immune system or ability of the body to fight against Infections. A person with XLA disease have few B cells which are specialized white blood cells for fighting Infections. If a female have XLA disease she has 50% chance of transmitting disease to their sons. A male has 50% chance of having XLA and female 25% chance.

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Answer:

D. Biome

Explanation:

The most comprehensive ecological unit of the biosphere is the biomes. Biomes are the largest ecological unit of life.

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You are looking at the natural factors that affect the Earth’s climate change.
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Answer:

The natural factors that affect the Earth’s climate change are given below.

Explanation:

Topography refers to the physical features of a piece of land. Areas near water bodies have milder climate while on the mountains the climate is very cold. Due to climate change the climate of mountains changes and becomes warm which melts the snow reserves and increase in sea level.

The sun intensity also has a great effect on climate of region. If the intensity is high, the temperature of the surrounding also high. Due to increase in the intensity of sunlight, climate change occurs.

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Different landmasses differ in temperature due to the presence of these landmasses near or far from the equator. Those areas near the equator experience high temperature.

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Explanation:

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The force needed, according to Newton’s Second Law will be the product of the bodys mass and its acceleration and in the same direction of the acceleration. So the magnitude of the force F= m*a = 5kg* 2m/s/s = 10 kg*m/s/s = 10 newtons.

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