Mendel's Experiments and Genetic Traits

Gregor Mendel, frustrated by the vague conclusions of other plant hybridizers, chose the garden pea for his experiments due to its distinct traits. He discovered that traits are inherited in predictable patterns, identifying dominant and recessive traits. Mendel's mathematical analysis revealed that traits are determined by elements, now known as genes, which are inherited independently. His experiments over multiple generations established foundational principles of genetics.

Why was Gregor Mendel frustrated with the work of other plant hybridizers?

• They did not publish their work.

• Their conclusions were unclear.

• Their observations were too specific.

• They used the wrong plants.

Why did Mendel choose the garden pea for his experiments?

• It grew quickly.

• It was easy to grow.

• It had clearly defined traits.

• It was the only plant available.

What did Mendel call the trait that appeared in the first generation of hybrids?

• Dominant

• Hidden

• Recessive

• Primary

What happened to the hidden trait when Mendel's hybrids self-fertilized?

• It became the dominant trait.

• It returned in the next generation.

• It appeared in all offspring.

• It disappeared completely.

What did Mendel realize about the recessive traits in the first hybrids?

• They were lost forever.

• They were still present in the cells.

• They were dominant in the next generation.

• They were not transmitted to offspring.

What did Mendel conclude about the elements determining traits?

• They were present in pairs in the parents.

• They were random.

• They were not predictable.

• They were only present in one parent.

What did Mendel call the elements that determined traits?

• Genes

• Chromosomes

• Cells

• Elements

What was the result of Mendel's experiments with peas differing in more than one trait?

• All traits were recessive.

• All traits were dominant.

• Every possible combination of traits appeared.

• No new traits appeared.

What did Mendel conclude about the elements governing traits in his multi-trait experiments?

• They were always recessive.

• They were always dominant.

• They were not passed on together.

• They were passed on together.

How long did Mendel conduct his experiments?

• Eight years

• Four years

• Two years

• Six years