Pea plants are tall if they have the genotype tt or tt, and they are short if they have genotype tt. a tall plant is mated with a short plant.
which outcome below would indicate that the tall parent plant was heterozygous?

a. the ratio of tall offspring to short offspring is 1: 1.
b. the ratio of tall offspring to short offspring is 1: 2.
c. the ratio of tall offspring to short offspring is 2: 1.
d. none of the above

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.