He first step in solving this problem requires an examination of the possible genotypes of the parents. As stated color-blindness is a recessive linked trait. So the genotypes of the parents should be:
<span>mother's genotype (normal vision but whose father was color blind) XNXn</span>
She is a carrier because of her heterozygous condition. For the recessive gene to be expressed one must be homozygous for it.
<span>father's genotype (color blind) XnY</span>
<span>
</span>
Answer:
Abrasion
Explanation:
Mechanical weathering is generally called physical weathering where rocks are broken down physically. It means that the rocks are broken down into smaller pieces but the rocks' composition (chemically) is not changed.
There are different ways that rocks can be broken into smaller pieces physically and gravity helps can also cause it.
Abrasion is an example of mechanical weathering where rocks bump into each other and cause the rocks to breakdown because of the force of bumping into each other. Gravity plays a role when it comes to rocks on the mountain side.
When a rock on top tumbles down the side of the mountain, it bumps into other rocks along the way. Gravity is at play here because it pulls the rock downwards, causing it to tumble.
Answer:
tall
Explanation:
The genotype Tt is heterozygous, which means it has both the dominant and recessive trait in the genotype. The reason it is tall is because that is the dominant trait, and the dominant trait basically covers up the recessive trait (unless you are talking about incomplete dominance or codominance).
