This chapter is about various traits which we get from our parents and forefathers. For example, your face may look like your father’s face. Your nose may appear like your mother’s nose. The height of your father and your grandfather may be almost same.
Inherited Traits: Some traits pass from one generation to next generation. These are called inherited traits. Examples of such traits are – skin colour, hair, eyes, nose, height, etc.
Acquired Traits: Some traits are acquired during one’s lifetime. These traits do not pass from one generation to next generation. These are called acquired traits. Examples of such traits are – languages one knows, drawing skill, music skill, etc.
There was a monk in Austria. His name is Mendel. He conducted many experiments on pea plants. After his experiments, he discovered that every trait has a contrasting pair. For example, a pea plant can be tall or short. Seeds can be smooth or rough. All plants of one generation can be tall plants or short plants. In the next generation, some of the plants can be tall and some of them can be short. But there will be no plant of medium height.
After the death of Mendel, many scientists discovered his findings and formulated theories on inheritance of traits. Inheritance means passing of traits from one generation to next generation.
Ashima sneezed just like her father. Do you have any such habit or trait which is similar to that of someone in your family? What is it? Whom is it similar to?
|Your special habit or trait||Whom is it similar to|
|Style of walking||Father|
Question 1: Does your face or anything else look similar to that of someone else in your family? What is it?
Answer: My nose looks similar to my mother’s nose.
Question 2: Did someone tell you this or did you find it our yourself?
Answer: My nani told me about this.
Question 3: How do you feel when people compare you with someone else in your family? Why do you feel so?
Answer: I feel proud because these traits have come from may parents.
Question 4: Who laughs the loudest in your family? Laugh like that person.
Answer: My Dada lughs the loudest.
Question 1: Does Nilima have curly hair like her nani’s? Now look for some special trait in your sister or brother (could be cousins). Like the colour of eyes, dimples in cheeks, height, broad or sharp nose, voice, etc. See if this trait comes from the father’s side or the mother’s side. Make this table in your notebook and fill it. An example is given.
|Special Trait||Whom does it resemble?||From whose side?|
|Nilima’s Curly Hair||Her nani (grandmother)||Yes||No|
|My brother’s brown eyes||His Dada||No||Yes|
|My round face||My nani||Yes||No|
Question 2: Have you seen a very young child in your (or any other) family? Whom does the child’s eyes, nose, hair or fingers look like in the family? Write their names.
Answer: Recently, my Mama has been blessed with a girl child. As my Nani says, the child’s lips look like my Nana’s lips.
Question 3: Nilima’s hair is like her nani’s - thick and curly. Nilima’s mother has straight, brown and limp hair? What type of hair do you have – black or brown, oily or dry?
Answer: My hair is blak and oily.
Question 4: What is the colour of your hair? Measure and write the length of your hair.
Answer: My hair is black. My hairs are two feet long.
Question 5: Is your hair like that of anyone else in your family? If yes, then name the person.
Answer: My hair is similar to my Dadi’s hair.
Question 6: Measure the hair of other members of your family.
Answer: Do It Yourself
Question 7: Who has the longest hair in your family?
Answer: My mother has the longest hair in my family.
Question 8: How many people do you know whose hair is longer than one metre? Does having long hair run in their family?
Answer: My mother and my mausi have very long hair.
Question 9: Do you know how to measure your height? Measure yourself from head to toe and write how tall you are.
Answer: My height is 4 feet 7 inches
Question 10: How tall do you think you will be when you grow up? Is anyone else in your family of the same height?
Answer: I think, I will be 5 feet 5 inches tall, a little bit more than my mother.
Question 11: Measure the height of your family members and write it down.
Answer: Do It yourself
Question 1: What is similar between Saroja and Suvasini? What is different?
Answer: Saroja and Suvasini look like mirror images of each other. Saroja knows two lanugages – Tamil and Marathi. But Suvasini knows only Tamil.
Question 2: Do you know any twins? What is similar in them? How are they different?
Answer: There are two brothers in my class. They look similar to each other. There is a mole on right cheek of one of them.
Question 3: Do you know of twins who don’t look the same?
Answer: My Chacha and a Bua are twins. They don’t look the same.
Question 1: Have your read or heard anything about polio? Where?
Answer: I have read about poliio in newspaper.
Question 2: Have your read or heard any news about pulse polio? What?
Answer: Sometimes, pulse polio programme happens in the government school in my neighbourhood.
Question 3: Do you know of anyone who has polio?
Answer: One of my cousins has polio.
Question 4: Are there people in your house who talk loudly? Is it their habit, or they cannot also hear very well?
Answer: My Dada talks very loud. I think, it is his habit.
Question 5: Are there times when you do not talk loudly in front of some people? When? With whom? Why? When can you speak loudly?
Answer: When my father is around, I talk softly in my house. Once my father is off to work, I can talk at the top of my voice.
Question 6: Some people use a machine in their ear to help them hear better. Someone use a stick or spectacles to help them in other ways. Do you know someone who does so?
Answer: My father uses spectacles when he has to read something. My nani uses a hearing aid.
Question 7: Talk to people who cannot hear very well. Find out if they had this problem from birth. When did they start ot have a problem with hearing? What difficulties do they face?
Answer: My Nani started getting this problem about five years ago. Doctors say it is because of her age. She says she does not enjoy gossipping with people as she did earlier.
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