BOTANY
PLANT GENETICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It provide support to Darwin’s theory of evolution by disappearing.
|
|
|
The pea plants produced 50% less green seeds
|
|
|
It was hidden by the dominant yellow gene
|
|
|
The resulting plants were yellow/green-ish
|
Detailed explanation-1: -Mendel’s gene involved in pea color decides whether the chlorophyll in the pea will be broken down and degraded. When this gene isn’t working, the chlorophyll stays around and the pea is green. So in this case the recessive trait is indeed due to a broken gene.
Detailed explanation-2: -In the F2 generation, the recessive traits reappeared, as did two novel combinations of traits: round green seeds, and wrinkled yellow seeds. From these results, Mendel concluded that characteristics were inherited independently of each other.
Detailed explanation-3: -If the offspring self-fertilize, they produce tall and short plants in a ratio of 3:1 in the next generation. Mendel’s actual counts were 787 tall:277 short plants in this generation (2.84:1 ratio).
Detailed explanation-4: -Working with garden pea plants, Mendel found that crosses between parents that differed for one trait produced F1 offspring that all expressed one parent’s traits. The traits that were visible in the F1 generation are referred to as dominant, and traits that disappear in the F1 generation are described as recessive.