Intro to Genetics Section 1 Notes

Fill in the blank: Pea plants can be _______ or cross-pollinated.

• self-pollinated

• wind-pollinated

• insect-pollinated

• water-pollinated

According to Mendel, traits that disappear can ________ in future generations.

• Vanish

• Reappear

• Mutate

• Weaken

Fill in the blank: In Mendel's experiments, the F1 generation showed only one of the traits, while the other seemed to ________.

• A) disappear

• B) multiply

• C) change

• D) intensify

What did Mendel conclude about an individual's characteristics?

• They are caused by environmental factors

• They are caused by factors inherited from previous generations

• They are random

• They are caused by diet.

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What do we now call the factors that Mendel described?

• Chromosomes

• Cells

• Genes

• Proteins

A gene is a segment of ______ that codes for a specific trait.

• RNA

• Protein

• DNA

• Lipid

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What did Mendel conclude about alleles?

• All alleles are dominant

• Some alleles are dominant and some are recessive

• All alleles are recessive

• Alleles do not affect traits.

What happens to the recessive trait in the F1 generation according to Mendel's findings?

• It disappears

• It becomes dominant

• It remains visible

• It changes color

Different forms of a gene are called (a)  

• alleles.
• hybrids.
• dominant factors.
• recessive factors.

Genes are found on...

• chromosomes
• alleles
• proteins
• anthers

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