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Child Development: An Active Learning Approach 3rd Edition

Child Development: An Active Learning Approach (3rd Edition)

Book Edition3rd Edition
Author(s)Levine, Munsch
ISBN9781506330693
PublisherSage
SubjectPsychology
The Study of Genetics and Behavior
CHECK YOUR UNDERSTANDING
Molecular Genetics: Chromosomes, Genes, and DNA
CHECK YOUR UNDERSTANDING
Genetic Disorders
Behavioral Genetics
ACTIVE LEARNING
CHECK YOUR UNDERSTANDING
The Interaction of Genes and Environment
CHECK YOUR UNDERSTANDING

Chapter 4, The Study of Genetics and Behavior, CHECK YOUR UNDERSTANDING, Exercise 1

Page 105

Explanation

The process of how the genetic information of the parents is transferred to the child is known as inheritance. The reason for the offspring being similar to the parents is inheritance and the process of heredity depends on it. 

 

Theorist M did experiments on pea plants to discover inheritance and came up with three laws based on the discoveries;

  • Law of dominance: Also called Mendel's first law of inheritance, this law talks about how the offsprings inherit the dominant traits in their phenotype. Suppressed alleles are known as recessive and the trait determining alleles are called dominant.
  • Law of segregation: According to this law, when gametes are produced, each hereditary factor divides into two copies and that's why the offspring gets one factor from each parent. 
  • Law of Independent assortment: The theorist talked about how gametes segregate independently and thus, distinct traits get equal opportunities to exist together.

Verified Answer

  • Mendel discovered the laws of inheritance through his work on pea plants. The three laws he gave were the law of dominance, segregation, and independent assortment.
  • With the help of his findings, researchers concluded that the laws of inheritance could be applied to human beings too.
  • Characteristics that run in human generations have a genetic basis just like in the case of Peas that Mendel studied suggesting that humans inherit genes from their ancestors.
  • Mendel's experiments allowed scientists to determine the exact process of transmission of genes from one generation to another.
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