Question

• 1. How did Mendal explain that is possible a trait is inherited but not
expressed in an organism.
2. "The sex of the child is determined by what they inherit from their
father & not mother" Justify.
• 3. In one experiment with pea plants Mendal observed that when a
pure tall pea plant were crossed with dwarf peas plant.
Find: F1 & F2 generation along with phenotypic & Genotypic ratio.
4. Write the differences between Homologous & analogous Organs.
5. Evolution & Classification of organisms are inherited. Give reason.​

Answer 1

1.

→ Mendel crossed a tall pea plant and a short pea plant of different characteristics and are produced progeny from them. ... This indicates that both the tall and short traits were inherited in the F₁ plants but only the tallness trait was expressed.

2.

→ ”The sex of the children is determined by what they inherit from their father and not their mother.” Justify. Answer: It is because a child who inherits an X chromosome from her father will be a girl and one who inherits a Y chromosome from his father will be a boy.