As mentioned in the question, wavy hair is a result of phenomenon of incomplete dominance where no allele is dominant over the other.
So if we say a man with curly hair (hh) marries a woman with straight hair (HH), we need to find out will their kids have straight hair or not.
Let us cross them:
Parents: hh X HH
Gametes: h : h and H :H
Offspring: hh: Hh: hH: HH
Probability of children with straight hair (HH) = 25 %
Probability of children with curly hair (hh) = 25%
Probability of children with wavy hair = 50 %
So there is a chance of 25 % that their kids can have straight hair.
Hope it helps!
The greenhouse effect is the natural warming of Earth's lower atmosphere and surface.
<u>Explanation:</u>
The idea of climate and temperature around the Earth begins with the sun. Approximately 30% of the sunlight reflects back to the cloud and ice from the surface.
The basic rise of the greenhouse effect is when the sun radiates around the earth.The greenhouse effect is the natural warming of Earth's lower atmosphere and surface. The 30% reflects back where the rest of the energy of the sun is collected by greenhouse effect and radiated to the surface again.
The radiation as well as the absorption of the heat is beneficial to the lower atmosphere as well as the surface as no other foundation can be reflected and radiated by the greenhouse effect.
This may say that the species is affected or infected by a disease.
Answer:
With respect to the cases of early-onset Alzheimer’s disease are inherited, a type known as familiar Alzheimer’s disease (FAD), the statement is best supported by this information is that FAD is the result of a genetic change in one or more chromosomes.
Explanation:
Options for this question:
- <em>FAD is the result of a genetic change in one or more chromosomes.</em>
- <em>Natural selection will continue to reduce the incidence of FAD.</em>
- <em>FAD affects only the genes of middle-aged people.</em>
- <em>Deletion of one amino acid causes FAD.</em>
Alzhaimer's disease is a type of dementia that is characterized by neuronal degeneration, causing disorientation, memory and manual skills loss , among others. The familiar variety (FAD) is hereditary and is associated as a cause of disease and early Alzhaimer, before 60-65 years.
So far, three types of mutated genes related to FAD have been established:
- PSEN₁ or presenilin-1 gene
, more frecuent.
- APP or amyloid precursor protein gene.
- PSEN₂ or gene for presenilin-2, very rare or uncommon.
In some cases, people affected by FAD have alteration in more than one gene at the same time.
For this reason, it can be stated that FAD is the result of a genetic change in one or more genes or chromosomes.
Learn more:
Alzhaimer's disease brainly.com/question/7999310
