C
: 1 the cross between two lines of peas, the first has long stem, and the other has short stem
gave an f, composed of plants that all have long stems.
a- what conclusion can you draw from this cross? az
b- self pollination of the individuals of the f gave the following result:
150 long-stemmed plants
49 short-stemmed plants
1- calculate the percentage of the obtained phenotypes. az scal-pollinabon means
2- carry out a factorial analysis to verify this result. az self cross. f xf

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).