Answer:
i know some whatcha need?
Explanation:
Answer:
The Cambrian lasted 55.6 million years from the end of the preceding Ediacaran Period 541 million years ago (mya) to the beginning of the Ordovician Period 485.4 mya. Its subdivisions, and its base, are somewhat in flux.
Answer:
c. All eight possible phenotypes could occur, but a greater proportion of the offspring would have the parental phenotypes
Explanation:
When genes are linked they do not assort independently. Instead, the alleles on the parental chromosome will have a tendency to migrate together to the same pole of the cell. To produce gametes with genotypes different than the parentals crossing over must happen between the genes of homologous chromosomes during meiosis. However, recombination is a rare event, so the recombinant gametes will be less frequent than the parentals (those that arise when no recombination occurs between genes) and for that reason a greater proportion of the offspring will have parental phenotypes.
The homozygous recessive traits are those traits, which occur due to the inheritance of two recessive alleles of coding for a particular genotype.
The real life example of a homozygous recessive trait is sickle cell anemia. In this condition, the inheritance of the recessive alleles for sickle shape red blood cells leads to change in the shape of the red blood cells to sickle like. Due to the changes in the shape of red blood cells, it is not able to carry the oxygen in the blood, which leads to the anemia condition.
