<span>Fruit flies and pea plants may seem boring and simple, but the basic principles of genetics were worked out using those organisms. Humans follow the same patterns of heredity. First, meiosis independently assorts chromosomes when gametes are made for sexual reproduction. Second, human heredity involves the same relationships between alleles—dominant and recessive interactions, polygenic traits, and sex-linked genes, among others.</span>
<span>Answer: C. child #1 and #2 each had a 50% chance of getting HD; child #3 had a 0% chance.
Huntington’s disease is inherited in an autosomal dominant pattern which means you only need one allele from any parents to get the disease. That also means that there is no carrier, a healthy person must not carry any of the genes.
Parent of child 1 and 2 is a healthy male and female with HD. If the female has 2 HD gene, all of her children will get HD. But since she has a few normal children, then she must be heterozygous. Child of one heterozygous parent has 50% to get HD.
Since child 1 is normal, there is no chance for child 3 to get HD.</span>
The classification and naming of organisms is an ordered system that is intended to indicate natural and evolutionary relationships.
D because lakes lie on land that and are not part of ocean.
Answer:
They are passed from the X chromosome in parents to the XY chromosome in offspring.
Explanation:
Solution in the attachment due to technical fault from the site
