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Biology Genetics

Genetics test

QuestionAnswer
Why is Mendel considered the Father of Genetics? Mendel's experiments with pea plants laid the foundation of genetics.
Why is it a lucky thing that Mendel performed his experiments with pea plants? Pea plants normally self pollinate.
When Mendel bred pea plants with different traits, did they blend? Not at all, the trait from the other parent disappeared.
When Mendel crossed 2 tall plants from F1 generation, how did 25% become short? The short gene from one of the tall parents, joined together with the short gene from the other tall parent.
Explain how Sexual Reproduction occurs in plants? Haploid gametes are produced through Meiosis. The pollen germinates and a pollen tube grows. Seeds are released and germinate.
Principle of Dominance? States that some alleles are dominated and some recessive.
What happens to alleles during segregation? At some point, the allele for shortness had been separated from the tallness allele.
Genes Come In Pairs Rather than looking at the pea plant as a whole, Mendel focused on 7 traits he could distinguish.
Two inheritance patterns besides simple dominance Incomplete Dominance- Trait is expressed in between the 2 alleles. Codominance- when both traits are expressed.
Which type of reproduction results in offspring with greater genetic variation? Sexual Reproduction because it results in offspring that combine alleles from 2 different individuals.
Explain the difference between Monohybrid cross and Dihybrid cross. Monohybrid Cross: Considering only 1 trait. Example: TT times tt. Dihybrid: Considering 2 traits at a time in the cross. TTRR and ttrr
Explain how you might determine genotype of a purple flowering pea plant. There are 2 possible expressions of the color gene: White and Purple. Since purple is the dominant trait.
Created by: tatummilo333
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