... This was genetically passed on through generations. This was passed through genes. The ancestors were immune, therefore, they are also immune.
Cause when viruses disperse there gone to evolve then come back once they evolved to try to make things sick yet again.
Answer:
Assuming the dominant allele is represented as A, and the genotype as AA and the recessive as a, and genotype as aa; then the F1 will produce the offispring. Aa, Aa, Aa,Aa in ratio: 1:1:1:1:1
This shows the dominance of allele A.
However if two of the F1 generation are crossed then:
The F2 is AA,Aa,Aa,aa the phenotypic ratio is
3 ; 1
W<u>hile the Genotypic ratio is ratio;</u>
<u> 1AA : 2Aa Aa; 1aa(1 ;2;1)</u>
Explanation:
1. True form fossil
2. Trace fossil
3. Mold fossil
Fossils are formed in different ways, but most are formed when a plant or animal dies in a watery environment and is buried in mud and silt.