Question

Why do mendal Experiments show that trait may be dominat or recessive

Answer 1

║⊕ANSWER⊕║

WHAT IS THE MENDAL EXPERIMENT?

• Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance.
• He deduced that genes come in pairs and are inherited as distinct units, one from each parent.
• Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.

WHY DO THEY SHOW THAT TRAIT MAY BE DOMINANT OR RECESSIVE?

• Mendel demonstrated that traits can be either dominant or recessive through his monohybrid cross.
• He crossed true-breeding tall (TT) and dwarf (tt) pea plants.
• They appeared tall only because the tall trait was dominant over the dwarf trait.
• This shows that traits may be dominant or recessive.

Answer 2

$\huge\bf\red{Answer}$

Mendel performed an experiment on the pea plant. He crossed the tall pea plant with allele (TT) with the small pea plant (tt). As a result of this crossing, the progeny of the F1 generation were all tall.

• By this, he showed that the traits maybe dominant or recessive.

• The traits which were expressed in the progeny in both heterozygous (Tt) as well as homozygous (TT) condition are the dominant traits.

• Whereas the traits which are only expressed in homozygous condition (tt) are the recessive trait.