Answer: There is a 50% chance that the offspring will inherit Huntington's disease
Explanation:
Huntington's disease is expressed by a dominant allele.
Since the father is heterozygous for Huntington's disease, his genotype would be as follows:Hh
Even though he carries a normal allele, the dominant allele is disease causing and thus masks the effects of the normal allele, therefore he expresses the disease.
The mother does not have Huntington's because she is homozygous recessive, in other words, she carries 2 copies of the normal alleles.with the genotype hh.
If you do a punnet square, and you cross the mother and father, the following genotypes can be produced:
Hh, Hh, hh, hh
Therefore, there's a 50% chance that the offspring will inherit the disease causing allele and 50% chance that the offspring will not inherit it.
Answer: Option C.
Polar type of temperate climate over land and subtropical seasonable variable climate zone between 40 to 60 degrees latitude, north or south of the equator.
Explanation:
The temperate zone is the area of the Earth that is between the tropical region and the polar region. It is between the Artic circle and tropic of cancer or between the Antartic circle and tropic of Capricorn. The have between 40 to 60 degrees latitude north or south of the equator. They have seasonal changes. The climate is mild ranging from cool to warm and the sun is not overhead. The zone have four annual seasons and they are Autumn, wintery, spring and summer.
Examples of this regions are western Europe and Northern America.
Answer:
I think its A
Explanation:
Because the reason why airplane have closed windows is because we can't breathe in carbon dioxide when we go up. Of course there is oxygen just not a lot as we go up. Why would there be helium in the air? We would sound weird when we skydive.
I’m pretty sure number 1? I’m not sure though sorry
Answer:E. Founder effect
Explanation:
The founder effect is a phenomena that can be used to describe the fact that a new species develop from the parent species, when a small group of the parent population get separated. With due course of time such separated population becomes genetically different from the parent population.
