Assertion (A) : Some children have characteristics that resemble their parents while others are markedly different from their parents.
Reason (R) : Working out how much of any characteristic is due to nature or genes and how much is due to nurture or environment is a complex issue.
Choose the correct option.
Assertion (A) Analysis
The statement asserts that children exhibit characteristics similar to their parents, but also differences. This is biologically accurate. Offspring inherit genetic material from parents, leading to resemblance. However, genetic recombination, mutations, and varying gene expression contribute to differences. Thus, Assertion (A) is true.
Reason (R) Analysis
The statement explains that determining the exact contribution of genetics ('nature') versus environment ('nurture') to any characteristic is complex. This is a fundamental concept in genetics and developmental psychology, widely acknowledged in scientific research. The interplay between genes and environment is intricate and often difficult to isolate. Thus, Reason (R) is true.
Relationship Between Assertion (A) and Reason (R)
Reason (R) effectively explains Assertion (A). The complexity mentioned in (R) – the difficulty in separating nature and nurture – directly accounts for why children both resemble their parents (due to shared genetics) and differ from them (due to environmental influences, unique genetic combinations, and the complex interaction R describes). The variation and similarity are both outcomes of this complex nature-nurture interaction.
Conclusion
Since both Assertion (A) and Reason (R) are true, and Reason (R) provides a correct explanation for Assertion (A), the appropriate option is that both are true and R is the correct explanation of A.
Important Questions from Heredity and Environment - Teaching
- Individual differences in learning are due to ________
- Which of the following has the lasting influence on child's personality development ?
- Arrange the following relationship from increasing to decreasing order of hereditary similarity:
(a) Cousins
(b) Identical twins
(c) Siblings
(d) Fraternal twins
Choose the most appropriate answer from the options given below : - Which of the following are is true for the cause of Down syndrome?
a. Down syndrome may occur because of a failure of the twenty-first pair of chromosomes to separate during meiosis, so the new individual inherits three of these chromosomes rather than the normal two.
b. Down syndrome may occur because of an extra broken piece of twenty-first chromosome is attached to part of another chromosome.
c. Down syndrome occurs in the pairs of twenty-three chromosomes.
d. Down syndrome occurs because of XYY chromosomes.
Choose the most appropriate answer from the options given below: Which factor mainly refers to genetic traits passed from parents to children?
