Genes and Inheritance Flashcards

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1
Q

What is a Gene

A

A Gene is a section of DNA that codes for a specific protein and is located in DNA on a chromosome that is located inside a cell nucleus.

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2
Q

What is a Test Cross

A

A Test Cross is a genetic cross between a parent with a dominant allele and a parent with the recessive allele.

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3
Q

What is a pedigree diagram

A

This diagram represents how a particular gene is passed on in a family tree.

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4
Q

What is the meaning of Codominant

A

When 2 Alleles are expressed in the same phenotype. Ex: the allele for red and the allele for white flowers produce a pink flower.

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5
Q

What is Polygenic Inheritance

A

These are the characteristics that are controlled by 2 or more genes, instead of by just one gene.

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6
Q

What are some characteristics that are determined by Polygenic Inheritance

A
  1. Skin Color.
  2. Height
  3. Weight
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