g In humans, a widow's peak hairline is dominant while a straight hairline is recessive. Tom and Sue both have a widow's peak but their son Joe has a straight hairline. If they have another child, what is the genetic probability of that child having a widow's peak hairline

3/4

Explanation:

In humans, a widow's peak hairline is dominant while a straight hairline is recessive.

Tom and Sue both have a widow's peak but their son Joe has a straight hairline.

For Joe to have a straight haircut which is inherited in the recessive condition, that means both parent each has a recessive allele copy for this trailer making them heterozygotes for the trait.

If the widow's peak allele is W (genotype for heterozygote would be Ww)

A cross between these two heterozygotes gives

Ww x Ww

WW Ww Ww ww

3/4 widow's peak 1/4 straight hair line

The genetic probability of that child having a widow's peak hairline is 3/4...

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

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