Abotanist has acquired a group of sweet pea plants. all of the plants have yellow pea pods (therecessive trait), except for one, which has green pea pods (the dominant trait). pea pod color is a traitcaused by a single gene. in this tutorial, you will determine how the botanist can iden fy the genotypeof the green pea pod, and how this relates to mendel’s laws and meiosis. suppose that the botanist carried out the test cross described in above and determined that the original green-pod plant was heterozygous (gg). which of mendel's findings does her test cross illustrate?
-chromosome theory of inheritance
-law of segregation
-linkage
-law of independent assortment

d. organisms have cells with different shapes and functions.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.