32 Questions
What did Mendel do differently from earlier investigators?
He adopted an experimental approach and formulated hypotheses
What did Mendel always use to interpret his results?
Careful records and mathematics
What did the germ-plasm theory propose?
All cells contain a complete set of genetic information
What was the concept of blending inheritance related to?
Genes blending and mixing
Which theory proposed that genetic information travels from different parts of the body to reproductive organs?
Pangenesis
What did the cell theory propose about the origin of cells?
Cells arise only from cells
What did Mendel conclude about the F1 plants in his monohybrid crosses?
They inherit genetic factors from both parents
What did Mendel term the traits that appeared unchanged in the F1 heterozygous offspring?
Dominant
What is the Principle of Segregation also known as?
Mendel's first law
What did Mendel reason about the genetic factors in the F1 plants?
They inherit genetic factors from both parents
Which theory was developed in the early 1900s by Sutton and Boveri?
Chromosomal Theory of Inheritance
What type of plants did Mendel use for his experiments?
Annual plants
What did Mendel term the traits that disappeared in the F1 heterozygous offspring?
Recessive
'The loci for any two characters studied simultaneousy in a dihybrid cross were located far apart in most cases' illustrates which concept?
'The Theory of Independent Assortment'
What determined the characters in Mendel’s peas according to the text?
Only genotype
Who independently confirmed Mendel’s conclusions around year 1900?
Hugo de Vries, Erich Tschermark and Carl Correns
Why was Mendel successful in his genetic experiments?
He conducted additional crosses to test his hypotheses
Which concept of heredity proposed that all traits are inherited from one parent?
Pangenesis
What was the key feature of Mendel's approach that distinguished him from earlier investigators?
He formulated hypotheses and conducted experimental crosses to test them
Which theory proposed that genetic information travels from different parts of the body to reproductive organs?
Pangenesis
What did Mendel always use to interpret his results?
Mathematics
According to Mendel, what determines the characters in peas?
Mendelian inheritance
What did Mendel term as dominant in the F1 heterozygous offspring?
Phenotype
What concept did Mendel's conclusion about the F1 plants in his monohybrid crosses form the basis of?
The Principle of Segregation
What did Mendel conclude about the genetic factors in the F1 plants?
They separate when gametes are formed
What did Mendel use for his experiments?
Pea plants
What concept did Mendel illustrate by stating that the loci for any two characters studied simultaneously in a dihybrid cross were located far apart in most cases?
Principle of Independent Assortment
Who independently confirmed Mendel’s conclusions around the year 1900?
Hugo de Vries
Which theory proposed that genetic information travels from different parts of the body to reproductive organs?
Germ-plasm theory
'He was adept at seeing patterns in detail' suggests Mendel’s ability to:
Conduct thorough experiments
What did Mendel conclude about the F1 heterozygous offspring that displayed the phenotype of only one parent?
They inherited genetic factors from both parents
What did Mendel use to illustrate his first law?
Monohybrid crosses
Test your knowledge of model genetic organisms and early concepts of heredity with this quiz. Identify correct and incorrect notions related to pangenesis, inheritance of acquired characteristics, and preformationism.
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