In metaphase the chromosomes line up in the middle
Dominance because the tall(T) gene is dominant over the t gene so the plant is tall.
Out of the chooses given, the best description between evolution and natural selection is that natural selection leads to evolution. The correct answer is A.
The prokaryotic cell does not have a true nucleus, as the eukaryotic cell does.
Answer:
given, mother and father are heterozygotes.
let, father has B blood group and mother has A blood group.
then their heterozygous genotypes are --
father = iB, iO and mother = iA, iO
punnett square will be,
iB iO
iA iA iB iA iO
iO iB iO iO iO
the genotypes of their progeny will be, iAiB , iAiO ,iBiO and iOiO
and phenotypes will be 3 are heterozygous and 1 is homozygous.