Given three possible phenotypes for parents showing dominance aa , aa , aa which combination would produce a 1: 2: 1 ratio of genotypes and a 3: 1 ratio of phenotypes

A cross between two heterozygote individuals, Aa   x   Aa

Explanation:

A cross between two heterozygotes individuals would produce a 1:2:1 ratio of genotypes and a 3:1 ratio of phenotypes. This is a case of complete dominance of one of the alleles over the other one. In this case, the allele A completely dominates over the allele a.

The cross would be like:

Parental)       Aa     x     Aa

Gametes)    A     a         A     a

Punnet Square)

                        A          a

             A       AA       Aa

            a      Aa        aa  

The F1 genotype proportions are: 1/4 Homozygous dominant, AA

                                                        2/4 Heterozygous, Aa

                                                        1/4 Homozygous recessive, aa  

The F1 phenotype proportions are: 3/4 of individuals expressing the  

                                                           dominant trait.

                                                           1/4 of individuals expressing  

                                                            the recessive trait.

interphase   is the cell cycle stage in which the cell acquires nutrients, creates and uses proteins and other molecules and starts the process of cell division by replicating the dna. it is the longest stage in the eukaryote cell cycle.

the following   can go wrong during interphase:   a base pair could be mismatched during the duplication process causing a mutation.   correct answer: c

explanation:

i think the answer is gold im not entirely sure