Question

Your grandmother is very impressed with the size of the tomatoes from a plant that she planted in her garden. These tomatoes are ten times bigger than the average tomatoes. She said that she will collect the seeds from the tomatoes from that plant and re-plant them so she can get more plants with big tomatoes. From the information that you learned in class you know that the plants will produce the same kind of tomatoes if ______

Answer 1

Answer: The blank can be filled correctly by "if the seeds contain the gene or allele responsible for large size of the tomatoes"

Explanation:

In plants also, characters or traits of characters are defined by genes. Different alleles produce different traits of the same character.

For example, in classic Mendelian genetics, T was the allele responsible for tall plant trait while t was the responsible for dwarf trait.

Similarly, there would be a gene(s) responsible for size of the tomatoes. In addition, seeds are the products of sexual reproduction of plants. So, they may carry genetic combination different from parent plants (due to meiosis, crossing over, independent assortment, et cetera).

So, if the seed contains the gene or allele responsible for large size of tomatoes then only they will produce same kind of tomatoes.