The results of a test cross of a tall tomato plant was 100% tall. fill in the punnett square if all the recessive alleles (genes) came from pollen during the cross test.

TT (female parent)= All gametes with "T" allele

tt (male parent)= All gametes with "t" allele

Explanation:

Let's assume that the allele "T" is responsible for the tallness and the allele "t" makes the plants dwarf.  

Since the progeny of the test cross was tall only, this means that only the dominant trait was expressed. When a test cross progeny expresses only the dominant trait, the dominant parent is homozygous dominant for the gene. Since all the recessive alleles came from the pollen, the dominant parent imparted the "T" allele to the progeny. The genotype of the female parent was "TT" and that of the male parent was "tt".

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms