Advertisements
Advertisements
Question
Explain in brief how Mendel interpreted his results to show that the traits may be dominant or recessive.
Solution
Mendel performed his experiment on tall and dwarf plant and interpreted his results to show that the traits may be dominant or recessive.
Parent plants: True breeding tall pea plant was crossed with true breeding dwarf pea plant.
Production of F1 plants: All F1 plants were found to be tall.
Results of self-pollination of F1 plants or F2 plants: Mendel found that on self-pollination of F1 plants, the progenies obtained in F2generations were not all tall plants. Instead, one-fourth of F2 plants were found to be dwarf.
Mendel’s explanation for the reappearance of the short trait:
From this experiment, Mendel concluded that the F1 tall plants were not true breeding. They were carrying both the traits. They appeared tall, because the tall trait was dominant over the dwarf trait.
APPEARS IN
RELATED QUESTIONS
Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?
Why did Mendel choose garden pea for his experiments? Write two reasons.
List two contrasting visible characters of garden pea Mendel used for his experiment.
Write a short note.
Mendeleev’s periodic law.
Mendeleev's contributions to the concept of a periodic table laid the foundation for the Modern Periodic Table. Give reasons.
Why did Mendeleev's leave some gaps in his periodic table os elements? Explain your answer with an example.
The total number of electrons present in the first twenty elements of the periodic table is ______
On moving from left to right in a period in the periodic table, the size of the atom.
Name the elements whose compounds formed the basis of classification in Mendeleev's periodic table. Why did Mendeleev choose these elements?
How the formulae of these compounds had helped Mendeleev in deciding the position of an element in his periodic table?
