Question

Vidya is a married woman who has a cleft chin (a deep hallow in her chin). Vidya
has recently been blessed with a baby girl who has also a cleft chin. Anitha is a
close friend of Vidya. When she learned that Vidya’s baby girl also has a cleft
chin like Vidya, she got worried. This is because Anitha has a huge scar on her
left cheek which remained permanently after she got a cut on the cheek during
an accident which took place in school days. Anitha is worried that her baby
(which is due shortly), may also have a scar on her left cheek just like her. One
day, Anitha’s niece Radha, who is a science student of class 10, came to see her.
Anitha shared her apprehension with Radha. Radha could understand her
problem. She told Anitha that her case is entirely different from that of Vidya.
Radha explained everything to Anitha clearly. Anitha was now very much
relaxed.
i) What is acquired trait? (1)
ii) What is an inherited trait? (0.5)
iii) What type of trait is a) Cleft chin, and b) cheek scar? (1)
iv) What values are displayed by Radha in this episode? (0.5)

Answer 1

i) Acquired trait: Behaviors or that are learned or acquired through interaction with environment and life experiences.

ii) Inherited trait : Trait received by offspring from parent. Both physical or behavioral characteristics can be inherited. Instinct is a behavior that comes naturally without being taught.

iii) a) Inherited trait

b) Acquired trait

iv) Radha explained to Anitha that the cheek scar is completely different and it is an acquired trait. So, her child will not have it.

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