18 Questions
What term is used today to refer to the factors that determine inheritance?
Genes
Before Mendel, heredity was considered a blending process. What did Mendel's work demonstrate?
Specific laws govern the different characters in heredity.
Which principles of heredity did Mendel establish through his experiments?
Law of segregation and law of independent assortment
What did Mendel prove by showing that different characters in heredity follow specific laws?
Existence of paired elementary units of heredity (genes)
What did Mendel apply to a biological problem for the first time?
Knowledge of mathematics and statistics
How long did Mendel's studies remain unrecognized after his death?
34 years
According to the pre-Mendelian theories, what was the basis of the Vapour and Fluid Theories?
Organs of the body give out some type of vapours that unite to form a new individual.
What is the definition of HEREDITY according to the passage?
The specific mechanisms by which characteristics or traits are passed from parents to offspring via genes.
What is the definition of VARIATIONS according to the passage?
The tendency of offspring to differ from their parents.
Which pre-Mendelian theory proposed that genetic material is preformed in the reproductive cells?
Particulate Theories
What is the definition of GENETICS according to the passage?
The study of heredity and variations of inherited characters.
Which pre-Mendelian theory proposed that offspring are formed through the combination of reproductive materials from both parents?
Biparental Inheritance
Which theory proposed that the body produces minute particles called 'gemmules' that are collected in the reproductive organs?
Theory of Pangenesis
According to Lamarck's theory of 'Inheritance of Acquired Characteristics', how did giraffes develop long necks?
They inherited long necks from their ancestors who continually stretched their necks to reach food.
Which theory proposed the existence of two types of cells, 'somatic cells' and 'reproductive cells', in the body of organisms?
Theory of Germplasm
Which theory proposed that the inheritance of characteristics is determined by 'elementary particles'?
Biparental Inheritance by Elementary Particles
Which of the following is NOT one of the particulate theories mentioned in the text?
Theory of Epigenesis
Who proposed the Theory of Germplasm in 1892?
August Friedrich Leopold Weismann
Learn about Mendelian genetics, inheritance, and the principle of dominance through Gregor Mendel's groundbreaking research on plant hybridization. Discover how genes are passed down from generation to generation.
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