Answer:
The genotype of the randomly chosen F1 parent plant is "Tt"
Explanation:
Let "T" represents the allele for tall height characteristic of plant and "t" represents the allele for short height characteristic of plant.
Given -
Two phenotypically tall heterozygous pea plants are crossed to one another.
Genotype of tall heterozygous pea plants would be "Tt"
F1 Generation -
Tt * Tt
TT, Tt, Tt, tt
Now, it is given that a phenotypically tall F1 progeny plant is randomly chosen and mated to a phenotypically dwarf pea plant.
Genotype of phenotypically dwarf pea plant would be "tt"
Also, it is given that some of the F2 offspring from this mating are phenotypically dwarf this implies that progeny selected from F1 generation must have an allele for short height characteristics i.e "t"
Therefore,
in F2 generation cross will take between tt * Tt
thereby producing Tt, Tt, tt, tt
Therefore, the genotype of the randomly chosen F1 parent plant is "Tt"
Answer:
Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor
Explanation:
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The major species present upon dissolution will be water and N₂O because N₂O is soluble in water.
Explanation:
By "major species," it means, "what type are most of the atoms gift in."
N2O is an ionic compound consisting of N2+ and O- ions. it's gift as molecules within the gas section, however once value-added to water, the ions dissociate (this is true of all robust acids). that the major species gift in answer are H+ (which is typically aforementioned to react with water to make H3O+ or different complexes with water, thus place this if you want).
The answer is C.
PS. This lead to his study about evolution. Darwin in now dubbed as the father of evolution.
Hopes this helps.
