Genetics Basics

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Genetics Basics
What do you know about the world of genetics?
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T. Trimpe 2008 http//sciencespot.net/
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Use your knowledge of genetics to answer each
question
1. What term refers to the physical appearance
of a trait? Example Yellow body color 2.
What term refers to the gene that is expressed
when two different genes for a trait are present
in a gene pair? 3. If your grandparents are
the parental generation, what term would refer to
your parents? 4. What type of pollination occurs
when pollen from the stamen on one flower is
transferred to the pistil on the same flower or
to the pistil of a different flower on the same
plant? 5. Identify each gene pair as purebred
(P) or hybrid (H). Bb ______ DD - ______ dd -
_____
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And the answers are ... 1. What term refers to
the physical appearance of a trait? Example
Yellow body color 2. What term refers to the
gene that is expressed when two different genes
for a trait are present in a gene pair? 3.
If your grandparents are the parental generation,
what term would refer to your generation? 4.
What type of pollination occurs when pollen from
the stamen on one flower is transferred to the
pistil on the same flower or to the pistil of a
different flower on the same plant? 5.
Identify each gene pair as purebred (P) or hybrid
(H). Bb - ______ DD - ______ dd - _____
Phenotype
Dominant
F1 or First filial generation
Self-pollination
H
P
P