Answer:
Mendel first observed the different patterns of gene segregation for selected traits in garden peas and was able to determine probabilities of recurrence of a trait for subsequent generations and analyses of large families with many affected individuals can be used to determine whether a disease-associated gene is located on an autosome or on a sex chromosome, and whether the related disease phenotype is dominant or recessive.
If i had to guess it would be A
Answer:
Fluorine has 7 valence electrons and would need another one to have a full outer valence electrons.